1991 Buick Regal Engine Parts

Name: Pipe Plug C.S. Square 3/8-18 NPT, Head Size 5/16 In. (Sold by each)
Brand: Dorman
SKU: 090-019
Price: 3.29 USD

Below you will find various in-demand Buick Engine Parts, components and accessories for your 1991 Regal. Advance Auto Parts has popular Regal parts like Engine Timing Parts, Engine Mounts, Engine Gaskets and Seals and more. You’ll also find aftermarket and OEM Engine Parts for other Regal model years including 2003, 2004, 2011, 2012, 2013, 2014, 2015, 2016, 2017 and more. Select a category of 1991 Buick Regal Engine Parts below and start saving instantly.

Please Select your Vehicle to See Exact Fit Parts

Popular 1991 Buick Regal Engine Parts Categories

Engine Timing Chain Kits

Oil Pumps

Camshaft Position Sensors

OE Engine Oil Coolers

Rear Main Seal Sets

Crankshaft Position Sensors

Harmonic Balancers

Timing Cover Gasket Sets

Timing Cam Gears

Engine Mounts

Valve Cover Plugs

Cylinder Head Gaskets

Crankshaft Seals

Timing Sets

Oil Caps

Camshaft Position Sensor Connectors

Engine Oil Pump Pickup Tube and Screens

Rubber Freeze Plugs

O-Rings

Timing Cover Repair Sleeves

Main Bearing Repair Sleeves

Oil Pump Shafts

Timing Cover Seals

Rocker Arms

Cylinder Head Installation Sets

Camshaft Timing Adjuster Magnets

Oversized Main Bearings

Camshaft Bearings

Standard Rod Bearing Sets

Balance Shaft Sprockets

Body Control Module Retainer

Standard Individual Rod Bearings

Oil Pump Nylon Shaft Guides

Timing Crank Gears

Expansion Plugs

Engine Cylinder Head Plugs

Engine Valve Locks

Remanufactured Engines

Cylinder Heads

Engine Assembly Lube

Engine Valve Cover O-Rings

Essential Engine Parts for 1991 Buick Regals

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$3.29

This engine cylinder head plug is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.

Product Features:

Direct replacement – this engine cylinder head plug matches the fit and function of the factory part on specified years, makes and models
Ideal solution – this plug is a reliable replacement for an original part that is missing or has failed due to fatigue
Durable construction – this part is made from quality materials to ensure reliable performance and long service life
Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience

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$86.99

With the backing of an industry-leading two year or 60,000 mile parts and labor warranty, each Dayco timing chain kit includes top-grade timing chains, precision machined crank sprockets and cam sprockets, tensioners, high-grade plastic guides, seals and VVT solenoids and cam phasers if the application calls for it.

Product Features:

High quality chains prevent stretch for the life of the kit, addressing the no. 1 replacement issue
Precision machined sprockets for exact timing
High-grade plastic guides use same material as OE for excellent wear resistance
Contains: Camshaft Sprocket, Crankshaft Sprocket, Timing Chain, Chain Tensioner

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$248.99

Our products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile a/c experience, fix it once and fix it right with Imperial.

Product Features:

Imperial Swirl-Cool engine oil cooler kit
Size: 1-1/2″ x 6-1/2″ x 18″
Heavy-duty applications
Chevrolet V8 applications
Size: 1.5 in. x 6.5 in. x 18 in.
Heavy duty applications
Specifically designed for Chevrolet V8 applications with metal line kit for easier installation
Two-pass design for increased cooling
Size: 1.5 in. x 6.5 in. x 18 in.
Heavy duty applications
Specifically designed for Chevrolet V8 applications with metal line kit for easier installation
Two-pass design for increased cooling

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$32.99

Sprockets Are Made From High Alloy Steel, and Heat-Treated For Durability. Chain Is Pre-Stressed and Heat-Treated For Longevity. SET INCLUDES: S334T Engine Timing Camshaft Sprocket (1 EA), S323 Engine Timing Crankshaft Sprocket (1 EA), C359 Engine Timing Chain (1 EA).

Product Features:

Utilizes the latest in design and technology to offer complete chain sets
CAD designed and manufactured using premium materials
Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
Utilizes the latest in design and technology to offer complete chain sets
Refer to our online catalog for detailed application-specific information

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$74.99

The Camshaft Position Sensor plays a vital role in your engine’s operation, to determine the exact position and speed of the camshaft(s) to the ECM. The ECM uses this information to determine fuel and spark timing as well as VVT operation. A failed sensor can result in a check engine light, hard starting or failure to start, increased vehicle emissions and engine misfire. Camshaft Position Sensors are a premium quality product with outstanding support and leading innovation bred from our OE heritage.

Product Features:

THE DIFFERENCE: Enhanced, robust circuit board traces and precision-wound coated-copper windings increase durability, longevity and performance
OE QUALITY: Designed to meet or exceed OE specifications, fit, form and function to ensure proper position and/or rotating speed of the camshaft
EXTENSIVE TESTING: 100 percent thermal shock and vibration tested for best in class performance and reliability in the most extreme conditions
PRODUCT ENGINEERING: Premium seals prevent leaks or corrosion, while optimized magnet size and strength ensures precise, consistent signal output
INSTALLATION AND SUPPORT: Includes OE style brackets, hold downs, hardware, spacers and weathertight connectors

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$31.99

Product Features:

Choosing Victor Reinz assures getting OE quality parts in gaskets sets that have the coverage, contents, packaging and electronic cataloging to best meet the needs of the aftermarket.
Dana engineering-approved for fit, form and function
Meets or exceeds OE specifications

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$22.99

National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:

Design type: spring loaded; single-lip
Temperature range: -40 Deg. F to 400 Deg. F / -40 Deg. C to 204 Deg. C
Excellent high temperature capabilities
Compatible with wide range of fluids
Delivers quality and reliable performance for every type of repair

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$76.99

Melling oil pump repair kits are provided to supply the parts needed to rebuild a specific individual oil pump. Melling kits include all the required parts needed for a quality oil pump rebuild. Although Melling recommends the installation of a new oil pump, Melling oil pump repair kits are the preferred choice when a rebuilder has the desire to reuse the original oil pump casting or front timing cover.

Product Features:

Includes components needed to rebuild a worn oil pump providing an alternative to purchasing a new oil pump
Components are manufactured from high quality materials for durable wear
Components are precision engineered for optimum fit and function
Designed for long-life and worry-free performance

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$49.99

Oil drops on the driveway are a distant memory thanks to sophisticated engine valve cover and gasket designs. Victor Reinz is at the forefront of engineering the latest sealing technology. Although the primary task of valve cover gaskets is to seal oil and oil spray, they must withstand high temperatures brought on by nearby exhaust manifolds, exhaust crossovers in the cylinder heads, and EGR systems. Victor Reinz valve cover gaskets deliver the quality materials you demand. Where appropriate, Victor Reinz valve cover gaskets are designed with compression limiters to prevent over-torquing, splitting, or the need to retorque.

Product Features:

Choosing Victor Reinz assures getting OE quality parts in gaskets sets that have the coverage, contents, packaging and electronic cataloging to best meet the needs of the aftermarket.

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$125.99

Made in USA. Melling high volume oil pumps increase the amount of oil flow by an average of 20% through the engine improving oil pressure at idle providing dependable performance every time in every application. Every Melling high volume oil pump is engineered and assembled to the highest production standards from high quality materials. All Melling high volume oil pumps use the latest in gear and gerotor technology to provide the highest level of quality and performance. High volume gears are machined to close tolerances to ensure proper engine pressure and correct, efficient pump operation. End plates are precision ground for maximum wear resistance. Every Melling oil pump is individually tested for pressure and flow under conditions designed to duplicate actual engine operating conditions.

Product Features:

Manufactured from high quality materials for consistent durable wear
Precision engineered for optimum fit and function
Designed for long-life and worry-free performance
High volume oil pump supplies additional oil to engines when necessary for high performance applications or low oil pressure issues

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$39.99

Since 1921, Cloyes has been the trusted leader in automotive timing systems. As a critical component of the engine’s timing system, the crankshaft sprockets work in unison with the timing chain, tensioners, guides and other sprockets, to ensure precise timing. Cloyes engine timing crankshaft sprockets are precision-tooled with exact tooth geometry and a perfectly matched bore, off-set and timing index for superior fit, reliability, and long-term performance. To ensure total timing system integrity, Cloyes recommends replacing the chain along with the tensioners, guides, and sprockets during service.

Product Features:

Features precision-tooled tooth form, bore, off-set and timing index for superior fit, reliability, and long-term performance in engine timing repairs
CAD designed and manufactured using premium materials and heat-treated for OE-level fit and function, allowing for smooth installation and reliable performance
Each part is extensively tested for function, fitment, and durability to ensure consistent quality and optimal performance, reducing the risk of comebacks
Available in application-specific kit or as a stand-alone product, offering installation flexibility and convenience
Backed by Limited and over 100 years in engineering leadership with unmatched technical support and repair confidence in every component

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$49.99

This Mr. Gasket Rear Main Seal is made from Viton&reg: Rubber. This style of rubber can handle high temperature like silicone rubber, but with superior abrasion resistance. Its durability and it’s double, offset lip seal design make it recommended for applications that have high engine vacuum, like racing engines that utilize external vacuum pumps for crankcase evacuation.

Product Features:

Repairs That Leaky Rear Main Sail
Viton« Rubber Offers Both Abrasion Resistance & High Temperature Tolerance
Viton® Rubber Offers Both Abrasion Resistance & High Temperature Tolerance
Upgrade for Rope Seal Equipped Cars or Silicone Rubber Main Seals

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$18.79

Made of stainless steel
Designed to prevent timing cover seal leaks
Takes up gaps caused by worn-out harmonic balancer shafts

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$36.49

Designed to repair damaged, grooved or worn shafts
Durable stainless steel construction for corrosion-free sealing surface that surpasses most original shaft specifications
Ideal for a shaft where indications of seal wear, such as tracks or grooves have developed
Ultra-thin construction (0.01/0.25mm wall thickness) allows original seal size to be used with minimal additional lip loading
Easy to install with removable flange and installation tool

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$13.49

Anchor 2292 This mount supports the engine and dampen vibration. Each mount is specifically engineered and designed to OE standards. Natural and SBR rubber provide maximum life and performance. Steel fasteners are heat treated grade 5 bolts. A special bonding agent is used to ensure a rubber to metal bond. Rubber material is mixed to specific Durometer, hardness.

Product Features:

MAXIMUM LIFE & PERFORMANCE: Both natural and SBR (Styrene Butadiene) rubber provide good abrasion resistance and aging stability to ensure maximum life and performance.
MEETS OR EXCEEDS DUROMETER MEASUREMENTS: All rubber material is manufactured to specific Durometer (hardness) measurements based on the vehicle’s application requirements.
HARDENED STEEL FASTENERS: All fasteners are made of hardened steel with heat treated Grade #5 bolts.
SUPERIOR BOND: A special Chemlok bonding agent is used to ensure a superior rubber-to-metal bond.
HYDRAULIC MOUNT DESIGN: Hydraulic Mounts (applicable where OE) are designed for most front wheel drive vehicles because transverse drive train mounting.
For Years: 1968-2005
Weight approx: 3 Lbs
Product: Made In The Usa
Design: Clamshell
Part Group: 2292, 2292

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$49.49

Sealed Power® Vintage components provide coverage for applications over 35 years old, restoring classics with like new performance. Leading edge materials, ISO & QS certified manufacturing ensures performance and longevity for treasured engine rebuilds.

Product Features:

Steel-backed Babbitt lining material
Used in automotive and high-performance
Babbitt is designed to perform under extreme loads w/o damaging other engine parts
Babbitt is more environmentally friendly than other material
ISO & QS certified manufacturing

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$2.79

This engine expansion plug is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.

Product Features:

Direct replacement – this engine expansion plug matches the fit and function of the factory part on specified years, makes and models
Ideal solution – this plug is a reliable replacement for an original part that is missing or has failed due to fatigue
Durable construction – this part is made from quality materials to ensure reliable performance and long service life
Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience

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$34.99

Designed to repair damaged, grooved or worn shafts
Durable stainless steel construction for corrosion-free sealing surface that surpasses most original shaft specifications
Ideal for a shaft where indications of seal wear, such as tracks or grooves have developed
Ultra-thin construction (0.01/0.25mm wall thickness) allows original seal size to be used with minimal additional lip loading
Easy to install with removable flange and installation tool

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$5.99

Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust.

Product Features:

Meets or exceeds all original equipment specifications
Design to ensure a perfect fit
Engineered and manufactured specifically for the repair environment
Unsurpassed quality you can trust
Each Fel-Pro gasket, no matter how small, is engineered to exacting standards with proprietary design, engineering and manufacturing processes

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$18.99

The components in this fuel injector O-ring kit are designed to match the fit of the original O-rings on specified vehicles. They are engineered to help ensure leak-free connections to the fuel injectors during service or when the rings are damaged.

Product Features:

Direct replacements – the components in this fuel injector O-ring kit are designed to match the fit of the original O-rings on specified vehicles
Ideal solution – engineered to help ensure leak-free connections to the fuel injectors during service or when the rings are damaged
Durable construction – designed and manufactured to strict specifications for reliable performance
Trustworthy quality – backed by a team of product experts in the United States and more than a century of automotive experience

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$5.99

Constructed of quality materials, this multi-purpose retainer provides the same function and versatility as the original equipment retainer ensuring Length service life.

Product Features:

Ideal replacement – this retainer matches the fit and function of the original equipment retainer for this vehicle application
Quality material – this retainer is made of durable material for Length-lasting service
Versatile design – this retainer is suitable for a variety of automotive uses
Excellent value – this part offers original equipment quality at a competitive cost

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$5.99

Manufactured from high quality components by an OE Supplier. Proper fit and sealing prevents oil loss. Designed to OEM specifications. High quality finish is designed to compliment the engine compartment appearance.

Product Features:

Provides proper seal to ensure leak prevention
Stops engine blow by
High quality construction
Meets all OEM specifications

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$23.99

Made In USA. A new Melling pick-up tube/oil screen assembly provides the lubrication oil as well as protection for your oil pump from materials that find their way into the engine oil supply system. Contaminates enter your oil system via engine wear, extended time between oil changes and other internal engine sources. These contaminates can interfere with the proper oil flow and pressure spring functions resulting in engine damage and/or failure. Melling suggests that a new properly installed oil pump pick-up tube/screen be a part of every oil pump installation. Several Melling oil pump applications are offered with an oil screen included.

Product Features:

Manufactured from high quality durable materials for long wear
Precision engineering protects the engine from dirt and contaminants
Designed for long-life and worry-free performance
Meets or exceeds original equipment specifications

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$25.99

Direct replacement – this engine expansion plug matches the fit and function of the factory part on specified years, makes and models
Ideal solution – this plug is a reliable replacement for an original part that is missing or has failed due to fatigue
Durable construction – this part is made from quality materials to ensure reliable performance and long service life
Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience

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$59.99

Sealed Power« parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.

Product Features:

A-Series bi-metal aluminum alloy
Greater seizure resistance than tri-metal material
Reduces dramatically or eliminates bearing wear
Exacting tolerances
Meets or exceeds OEM specifications
Made with silicon to provide greater surface hardness

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$34.99

A new Melling oil pump shaft is recommended to complete every new oil pump install. Melling offers a complete line of high quality shafts for domestic and import pump applications. A new oil pump shaft is necessary due to possible metal fatigue, cracking and even twisting damage of the old shaft even when the part appears to be in good condition. Complete every Melling oil pump replacement with a new Melling oil pump shaft.

Product Features:

Manufactured from high quality materials for consistent durable wear
Precision engineered for optimum fit and function
Designed for long-life and worry-free performance
Meets or exceeds original equipment specifications

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$3.49

Sealed Power parts provide innovative designs, use leading-edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.

Product Features:

Complete rocker arm assembly
1 Arm
1 Ball
1 Nut
Utilizes ISO & QS certified manufacturing

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$478.99

Product Features:

Designed to fit all 1958-86 Small Block Chevy engines with perimeter bolt patterns
Die-Cast aluminum construction ensures high detail and reduces the opportunity for warping of the valve cover flange and oil leaks
Standard height valve cover with pre-installed internal oil baffles
Factory style twist-in oil fill cap, round Holley emblem, and square oil fill and PCV grommets included
Available in four finishes to best suit your custom build: natural, polished, gloss black, factory orange

Upgrade your 1991 Buick Regal with Top-Quality Engine Parts

When it comes to maintaining or upgrading your 1991 Buick Regal, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your Buick or enhancing its overall performance, Engine Parts are key to keeping your Regal functioning at its best. At Advance Auto Parts, we offer a wide selection of 126 Engine Parts for the 1991 Buick Regal, designed to meet your needs without breaking the bank. From Engine Timing Part replacements to Engine Mounts upgrades, we’ve got you covered with parts that fit your vehicle perfectly and ensure long-lasting performance.

Affordable Prices and Wide Selection

Shopping for Engine Parts for any vehicle can be a hassle, especially if you’re on a budget. But with Advance Auto Parts, you can find high-quality Engine Parts for your 1991 Buick Regal at great prices. Our Engine Parts inventory for this model ranges from just $0.43 to $1,912.99, with an average price of $60.80. Our 126 Engine Parts in stock come from 20 trusted brands, so you’re sure to find the right part for your 1991 Buick Regal without overspending.

Top Brands and High Customer Satisfaction

Advance Auto Parts takes pride in offering only the best brands in the automotive industry. For your 1991 Buick Regal, we stock popular OEM and aftermarket Engine Parts from top names like Felpro, Sealed Power, Dorman, and more. Felpro Engine Parts start at just $22.49 and boast an impressive 4.6 stars average rating from customers. Sealed Power and Dorman also bring quality to the table, with Engine Parts available starting at $0.43, and at an average 4.3 stars rating. With 968 customer reviews and counting, our 1991 Buick Regal Engine Parts have a strong track record of reliability, ensuring you can trust your purchase.

Explore Related Parts and More

While you’re here, don’t forget to check out other essential categories that go hand in hand with Engine Part upgrades. Explore related part types like Batteries and Chargers, Oil and Lubricants and more to make sure your 1991 Buick Regal is always ready to roll. We’re committed to providing you with everything you need to keep your Regal in top shape, all in one place. Start shopping confidently below for your 1991 Buick Regal!

Best-Selling Engine Timing Parts for 1991 Buick Regals

Enhance the driving experience in your Buick with 14 quality Engine Timing Part components, starting at $14.99.

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from

$18.79

Made of stainless steel
Designed to prevent timing cover seal leaks
Takes up gaps caused by worn-out harmonic balancer shafts

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$22.99

Design type: spring loaded; single-lip
Temperature range: -40 Deg. F to 400 Deg. F / -40 Deg. C to 204 Deg. C
Excellent high temperature capabilities
Compatible with wide range of fluids
Delivers quality and reliable performance for every type of repair

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$28.99

Includes timing cover seal and harmonic balancer sleeve
Solves the oil leaking around timing cover seal
Made of stainless steel
Takes up gaps caused by worn-out harmonic balancer shafts

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$32.99

Pre-Stressed And Heat-Treated For Increased Durability. Precision Cut Links With Smooth Finish. Precision Pitch Control For Proper Chain To Sprocket Tooth Fit.

Product Features:

Recommended that the chain tensioner(s), sprocket(s), and guide(s) also be replaced when the chain is replaced, as these components play a vital role in system stability and accurate timing
Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
Engineered and manufactured with precision pitch control for proper chain-to-sprocket tooth fitment
CAD designed and manufactured using premium materials
Refer to our online catalog for detailed application-specific information
Pre-Stressed And Heat-Treated For Increased Durability. Precision Cut Plates And Rollers With Smooth Finish. Precision Pitch Control For Proper Chain To Sprocket Tooth Fit.

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$57.99

Meets or exceeds OEM performance requirements. Cloyes utilizes the latest in design and material technology, ensuring quiet and maintenance-free experience. SET INCLUDES: S619 Engine Timing Crankshaft Sprocket (1 EA), 9-5131 Engine Timing Damper (1 EA), C385 Engine Timing Chain (1 EA), S620T Engine Timing Camshaft Sprocket (1 EA).

Product Features:

Meet or exceed OEM performance requirements, ensuring a quiet and maintenance free experience
Utilizes the latest in design and technology to offer a complete chain kit solution
Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance

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$15.99

MAHLE® gaskets provide world class sealing products trusted by OEMs & Technicians around the globe.

Product Features:

All MAHLE gaskets meet or exceed the original equipment specifications providing the finest sealing products available
MAHLE gaskets utilizes OE equivalent or better materials in all our gaskets
MAHLE gaskets is the leader in Domestic, Asian and European applications
The contents of MAHLE gaskets are packaged in shrink wrapped tray, giving you the added security of knowing that you have the right parts, prior to opening the package

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$64.99

Utilizes the latest in design and technology to offer complete chain sets. CAD designed and manufactured using premium materials. Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance. Utilizes the latest in design and technology to offer complete chain sets. Refer to our online catalog for detailed application-specific information. SET INCLUDES: C375 Engine Timing Chain (1 EA), S729 Engine Timing Crankshaft Sprocket (1 EA), S716T Engine Timing Camshaft Sprocket (1 EA).

Product Features:

Timing Set includes all components for a quick and efficient replacement
CAD designed and manufactured using premium materials
Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
Utilizes the latest in design and technology to offer complete chain sets
Refer to our online catalog for detailed application-specific information

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$44.99

Sprockets Are Made From High Alloy Steel, and Heat-Treated For Durability. Chain Is Pre-Stressed and Heat-Treated For Longevity. SET INCLUDES: S620T Engine Timing Camshaft Sprocket (1 EA), S619 Engine Timing Crankshaft Sprocket (1 EA), C385 Engine Timing Chain (1 EA).

Product Features:

Utilizes the latest in design and technology to offer complete chain sets
CAD designed and manufactured using premium materials
Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
Utilizes the latest in design and technology to offer complete chain sets
Refer to our online catalog for detailed application-specific information

from

$35.99

Pre-Stressed And Heat-Treated For Increased Durability. Precision Cut Links With Smooth Finish. Precision Pitch Control For Proper Chain To Sprocket Tooth Fit.

Product Features:

Recommended that the chain tensioner(s), sprocket(s), and guide(s) also be replaced when the chain is replaced, as these components play a vital role in system stability and accurate timing
Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
Engineered and manufactured with precision pitch control for proper chain-to-sprocket tooth fitment
CAD designed and manufactured using premium materials
Refer to our online catalog for detailed application-specific information
Pre-Stressed And Heat-Treated For Increased Durability. Precision Cut Plates And Rollers With Smooth Finish. Precision Pitch Control For Proper Chain To Sprocket Tooth Fit.

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$33.99

Gear Made From High Alloy Material. Features “Helical” Tooth Form For Quiet Operation, And Precision Machined Bore For True Fit.”

Product Features:

Featuring precision-tooled or machined tooth form and precision-machined bore for true fit, timing chain sprockets offer reliability and dependability for engine rebuilds and typical replacement jobs
CAD designed and manufactured using premium materials to ensure optimal performance
Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
Refer to our online catalog for detailed application-specific information

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$28.99

Sprocket Made From High Alloy Material. Features Precision Tooth Form To Assure Proper Chain Engagement, And Is Balanced For Proper Timing.

Product Features:

Featuring precision-tooled or machined tooth form and precision-machined bore for true fit, timing chain sprockets offer reliability and dependability for engine rebuilds and typical replacement jobs
Recommended that the chain tensioner(s), sprocket(s), and guide(s) also be replaced when the chain is replaced, as these components play a vital role in system stability and accurate timing
CAD designed and manufactured using premium materials
Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
Refer to our online catalog for detailed application-specific information

from

$26.99

Sprocket Made From High Alloy Material. Sprocket Teeth Are Heat Treated. Precision Tooth Form To Assure Proper Chain Engagement, And Precise Keyway To Tooth Timing.

Product Features:

Featuring precision-tooled or machined tooth form and precision-machined bore for true fit, timing chain sprockets offer reliability and dependability for engine rebuilds and typical replacement jobs
Recommended that the chain tensioner(s), sprocket(s), and guide(s) also be replaced when the chain is replaced, as these components play a vital role in system stability and accurate timing
CAD designed and manufactured using premium materials
Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
Refer to our online catalog for detailed application-specific information

from

$15.99

Sprocket Made From High Alloy Material. Features Precision Tooth Form To Assure Proper Chain Engagement, And Is Balanced For Proper Timing.

Product Features:

Featuring precision-tooled or machined tooth form and precision-machined bore for true fit, timing chain sprockets offer reliability and dependability for engine rebuilds and typical replacement jobs
Recommended that the chain tensioner(s), sprocket(s), and guide(s) also be replaced when the chain is replaced, as these components play a vital role in system stability and accurate timing
CAD designed and manufactured using premium materials
Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
Refer to our online catalog for detailed application-specific information

from

$14.99

Sprocket Made From High Alloy Material. Sprocket Teeth Are Heat Treated. Precision Tooth Form To Assure Proper Chain Engagement, And Precise Keyway To Tooth Timing.

Product Features:

Featuring precision-tooled or machined tooth form and precision-machined bore for true fit, timing chain sprockets offer reliability and dependability for engine rebuilds and typical replacement jobs
Recommended that the chain tensioner(s), sprocket(s), and guide(s) also be replaced when the chain is replaced, as these components play a vital role in system stability and accurate timing
CAD designed and manufactured using premium materials
Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
Refer to our online catalog for detailed application-specific information

Most Popular 1991 Buick Regal Engine Mounts

Customize your Buick with 3 Engine Mounts products like Engine Mounts, all priced under $173.99.

show more show less

from

$26.49

Anchor 2697 This mount supports the engine and dampen vibration. Each mount is specifically engineered and designed to OE standards. Natural and SBR rubber provide maximum life and performance. Steel fasteners are heat treated grade 5 bolts. A special bonding agent is used to ensure a rubber to metal bond. Rubber material is mixed to specific Durometer, hardness.

Product Features:

MAXIMUM LIFE & PERFORMANCE: Both natural and SBR (Styrene Butadiene) rubber provide good abrasion resistance and aging stability to ensure maximum life and performance.
MEETS OR EXCEEDS DUROMETER MEASUREMENTS: All rubber material is manufactured to specific Durometer (hardness) measurements based on the vehicle’s application requirements.
HARDENED STEEL FASTENERS: All fasteners are made of hardened steel with heat treated Grade #5 bolts.
SUPERIOR BOND: A special Chemlok bonding agent is used to ensure a superior rubber-to-metal bond.
HYDRAULIC MOUNT DESIGN: Hydraulic Mounts (applicable where OE) are designed for most front wheel drive vehicles because transverse drive train mounting.
For Years: 1990-1995
Weight approx: 4 Lbs
Hydraulic

from

$39.99

Anchor 2796 This mount supports the engine and dampen vibration. Each mount is specifically engineered and designed to OE standards. Natural and SBR rubber provide maximum life and performance. Steel fasteners are heat treated grade 5 bolts. A special bonding agent is used to ensure a rubber to metal bond. Rubber material is mixed to specific Durometer, hardness.

Product Features:

MAXIMUM LIFE & PERFORMANCE: Both natural and SBR (Styrene Butadiene) rubber provide good abrasion resistance and aging stability to ensure maximum life and performance.
MEETS OR EXCEEDS DUROMETER MEASUREMENTS: All rubber material is manufactured to specific Durometer (hardness) measurements based on the vehicle’s application requirements.
HARDENED STEEL FASTENERS: All fasteners are made of hardened steel with heat treated Grade #5 bolts.
SUPERIOR BOND: A special Chemlok bonding agent is used to ensure a superior rubber-to-metal bond.
HYDRAULIC MOUNT DESIGN: Hydraulic Mounts (applicable where OE) are designed for most front wheel drive vehicles because transverse drive train mounting.
For Years: 1988-2005
Weight approx: 5 Lbs
Hydraulic

from

$173.99

GM Genuine Parts Engine Mount are designed, engineered, and tested to rigorous standards, and are backed by General Motors. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE).

Product Features:

Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors.
GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
GM regularly updates production and service part designs to integrate new materials and technologies

Top Picks for 1991 Buick Regal Engine Gaskets and Seals

Upgrade Buick Regals with top-quality Engine Gaskets and Seals parts, including 11 OEM and aftermarket selections for your 1991 model.

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from

$27.99

Fel-Pro gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.

Product Features:

DESIGNED FOR IMPERFECT SEALING SURFACES – Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces
ENGINEERED TO PERFORM – Proprietary cork-rubber formulation
SUPERIOR SEAL – Highly conformable to accommodate for the imperfect sealing surfaces
EVERY PART FOR THE REPAIR – Fel-Pro gasket sets include every part needed for the repair unless otherwise noted
REAL WORLD TESTED – Parts are tested on-vehicle and validated to ensure optimal performance on the road

from

$32.99

Fel-Pro® gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.

Product Features:

Application specific design to ensure a perfect fit
Meets or exceeds all original equipment specifications
Engineered and manufactured specifically for repair applications
Unsurpassed quality you can trust
Validated for fit, form, and function

from

$20.99

Design type: spring loaded; multi-lip
Temperature range: -40 Deg. F to 400 Deg. F / -40 Deg. C to 204 Deg. C
Excellent high temperature capabilities
Compatible with wide range of fluids
Delivers quality and reliable performance for every type of repair

from

$12.49

Meets or exceeds all original equipment specifications
Application specific design to ensure a perfect fit
Engineered for the sealing repair environment
Unsurpassed quality you can trust
Validated for fit, form, and function

from

$15.99

Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust.

Product Features:

Meets or exceeds all original equipment specifications
Application specific design to ensure a perfect fit
Engineered and manufactured specifically for the repair environment
Unsurpassed quality you can trust
Validated for fit, form, and function

from

$17.99

Product Features:

DESIGNED FOR IMPERFECT SEALING SURFACES – Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces
ENGINEERED TO PERFORM – Proprietary cork-rubber formulation
SUPERIOR SEAL – Highly conformable to accommodate for the imperfect sealing surfaces
EVERY PART FOR THE REPAIR – Fel-Pro gasket sets include every part needed for the repair unless otherwise noted
REAL WORLD TESTED – Parts are tested on-vehicle and validated to ensure optimal performance on the road

from

$52.99

Designed to repair damaged, grooved or worn shafts
Durable stainless steel construction for corrosion-free sealing surface that surpasses most original shaft specifications
Ideal for a shaft where indications of seal wear, such as tracks or grooves have developed
Ultra-thin construction (0.01/0.25mm wall thickness) allows original seal size to be used with minimal additional lip loading
Easy to install with removable flange and installation tool

from

$65.99

Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust.

Product Features:

Conversion Sets (CS) provide every gasket for lower engine work – add a Head Set (HS) for complete engine overhaul work
Application specific design to ensure a perfect fit
Meets or exceeds all original equipment specifications
Validated for fit, form and function
Unsurpassed quality you can trust
Includes all the parts necessary to complete the repair unless otherwise noted
Includes all the parts necessary to complete the repair unless otherwise noted

from

$32.99

Product Features:

Choosing Victor Reinz assures getting OE quality parts in gaskets sets that have the coverage, contents, packaging and electronic cataloging to best meet the needs of the aftermarket.
Application specific molded rubber construction
Engineered cross section
Dana engineering-approved for fit, form and function

from

$5.99

With Victor Reinz gaskets, you can be sure you are getting sealing solutions that deliver OE quality gasket technology and engineering. That is because Victor Reinz is an original equipment supplier and the trusted choice of manufacturers the world over, offering broad coverage for foreign and domestic cars and trucks. In Victor Reinz gasket sets, you get the right combination of components needed for fast, long-lasting repairs.

Product Features:

Choosing Victor Reinz assures getting OE quality parts in gaskets sets that have the coverage, contents, packaging and electronic cataloging to best meet the needs of the aftermarket.

from

$4.99

MAHLEÂ® gaskets provide world class sealing products trusted by OEMs & Technicians around the globe.

Product Features:

All MAHLE gaskets meet or exceed the original equipment specifications providing the finest sealing products available
MAHLE gaskets utilizes OE equivalent or better materials in all our gaskets
MAHLE gaskets is the leader in Domestic, Asian and European applications
The contents of MAHLE gaskets are packaged in shrink wrapped tray, giving you the added security of knowing that you have the right parts, prior to opening the package

In-Demand Camshafts for 1991 Buick Regals

Select from 6 premium Camshafts parts for your 1991 Buick Regal, with prices ranging from $4.99 to $39.99.

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from

$32.99

Sealed Power® parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.

Product Features:

Steel-backed Babbitt lining material
Used in automotive and high-performance
Babbitt is designed to perform under extreme loads w/o damaging other engine parts
Babbitt is more environmentally friendly than other material
ISO & QS certified manufacturing

from

$39.99

A leader in vehicle electronic solutions, each premium product meets or exceeds OE specifications in appearance, fit, and function, ensuring easy installation and excellent performance. The product has been tested under extreme environments.

Product Features:

Reliable circuit board and product structure design, 3D proofing, and field test verification to ensure correct signal output at all speeds.
Manufactured in an anti-static environment to ensure reliability and stability.
Extreme temperature and salt spray tests simulate real-world vehicle conditions to ensure durability and reliability.
Providing this premium product line, we meet the service professionals needs with the highest quality product every time the part comes out of the box.

from

$38.99

Modern vehicles may have 100 or more electrical harness connectors in every operating system of the vehicle. Terminal tension may weaken with time or corrosion may occur within the connector housing making replacement necessary. When replacing any harness-connector assembly approved wire termination methods must be followed to ensure a successful and long-term solution to the original problem is made. A failed terminal connection, terminal corrosion or damaged wire will result in an electrical system fault.

Product Features:

Carquest electrical connectors meet or exceed OE wire gauge, insulation, and terminal material requirements.
Product constructed to meet all design and operating characteristics as intended by the manufacturer.
Product constructed to meet all design and operating characteristics as intended by the manufacturer.
OE specified wire gauge to ensure a reliable electrical connection
Designed to meet or exceed OE specifications in form, fit and function

from

$4.99

MAHLEÂ® gaskets provide world class sealing products trusted by OEMs & Technicians around the globe.

Product Features:

All MAHLE gaskets meet or exceed the original equipment specifications providing the finest sealing products available
MAHLE gaskets utilizes OE equivalent or better materials in all our gaskets
MAHLE gaskets is the leader in Domestic, Asian and European applications
The contents of MAHLE gaskets are packaged in shrink wrapped tray, giving you the added security of knowing that you have the right parts, prior to opening the package

from

$13.99

The variable valve timing (VVT) system allows the engine control module (ECM) to regulate the intake and exhaust valve phase angle providing the most optimal engine volumetric efficiency under all engine operating condition to control tailpipe emissions and engine efficiency. Variable valve timing is an emission control device and although there are various methods of operation, the typical device is regulated by oil control valves, actuator solenoids and camshaft phasers.

Product Features:

Precision-wound coated copper windings increase product durability and life cycle.
Hard-coated and anodized spool valve to prevent corrosion and increase service life.
Threaded mounting bolt, hardware, and/or gaskets where applicable for easy installation.
Thermoplastic that is resistant to high temperatures, moisture, and chemicals.
100% thermo-shock and vibration tested to ensure superior performance in extreme conditions.
100% end-of-line tested to ensure product reliability, every time.
Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.

from

$5.49

Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust.

Product Features:

Each gasket is built to meet or exceeds all original equipment specifications
Application specific design to ensure a perfect fit
Engineered and manufactured specifically for the repair environment
Unsurpassed quality you can trust
Validated for fit, form, and function

Most Sold 1991 Buick Regal Valve Cover and Cylinder Heads

Explore our best-selling Buick parts for the 1991 Regal among 20 OEM and aftermarket options starting from $0.43.

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from

$22.49

Meets or exceeds all original equipment specifications
Application specific design to ensure a perfect fit
Engineered for the sealing repair environment
Validated for fit, form and function
Unsurpassed quality you can trust

from

$0.43

Unsurpassed quality that you can trust
Uses leading edge materials
State-of-the-art manufacturing
Exacting tolerances
Meets or exceeds OEM specifications

from

$77.99

This replacement valve cover matches the fit and function of the original equipment part that may be damaged or warped. Made from quality materials for excellent fit and superior heat resistance, this valve cover has undergone extensive testing.

Product Features:

Direct replacement – this valve cover matches the original equipment part for fit and function
Durable construction – this valve cover is made of quality materials to withstand extreme temperatures to resist leaking
Cost-effective solution – offers original equipment performance at competitive price
Quality tested – this part has undergone try-on and material testing to ensure a quality fit and reliable service

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$1.49

Unsurpassed quality that you can trust
Uses leading edge materials
State-of-the-art manufacturing
Exacting tolerances
Meets or exceeds OEM specifications

from

$77.99

The Edelbrock #4486 Signature Series Valve Covers are designed for Buick 3.8L & 4.1L V6 ’77 & later applications. Engineered for function and styled for great looks, Signature Series valve covers have stock-style breather baffles that prevent oil passage to the PCV valve. These quality valve covers accept all emissions equipment, including PCV valve holes. Rubber grommets for the breather and PCV valve holes are included. Matching breathers sold separately.

Product Features:

Buick 3.8L & 4.1L V6 1977 & Later
Short
Chrome Steel
Set Of Two
Rubber Grommets For Breather

from

$14.49

Unsurpassed quality that you can trust
Uses leading edge materials
State-of-the-art manufacturing
Exacting tolerances
Meets or exceeds OEM specifications

from

$24.99

Unsurpassed quality that you can trust
Uses leading edge materials
State-of-the-art manufacturing
Exacting tolerances
Meets or exceeds OEM specifications
New OEM riveted pin retaining design

from

$8.79

Unsurpassed quality that you can trust
Uses leading edge materials
State-of-the-art manufacturing
Exacting tolerances
Meets or exceeds OEM specifications

from

$5.99

Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust.

Product Features:

Meets or exceeds all original equipment specifications
Design to ensure a perfect fit
Engineered and manufactured specifically for the repair environment
Unsurpassed quality you can trust
Each Fel-Pro gasket, no matter how small, is engineered to exacting standards with proprietary design, engineering and manufacturing processes

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$55.99

ACDelco GM Original Equipment Engine Valve Lifters automatically help maintain a ‘zero’ valve lash condition to help prevent valve train noise and unnecessary valve train component wear, and are GM-recommended replacements for your vehicle’s original components. These original equipment valve lifters have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

Product Features:

Adjusts the valves on your vehicle’s engine for proper performance
GM-recommended replacement part for your GM vehicle’s original factory component
Offering the quality, reliability, and durability of GM OE
Manufactured to GM OE specification for fit, form, and function

from

$3.29

Direct replacement – this engine cylinder head plug matches the fit and function of the factory part on specified years, makes and models
Ideal solution – this plug is a reliable replacement for an original part that is missing or has failed due to fatigue
Durable construction – this part is made from quality materials to ensure reliable performance and long service life
Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience

from

$72.99

Direct replacement – this valve cover matches the original equipment part for fit and function
Durable construction – this valve cover is made of quality materials to withstand extreme temperatures to resist leaking
Cost-effective solution – offers original equipment performance at competitive price
Quality tested – this part has undergone try-on and material testing to ensure a quality fit and reliable service

from

$337.99

Remanufactured Cylinder Heads are complete rebuild & include new valve stem seals, soft plugs & verified camshafts. All threads are checked and repaired if necessary. Cylinder Heads are packaged in heavy plastic to protect the unit.

Product Features:

All cylinder heads are both vacuum and pressure tested to verify valve seating, & integrity of water passages.
All cylinder heads are packaged in environmentally safe and recyclable containers that are the perfect size for returning your original core
All threads and machined surfaces are and repaired with technology that exceeds the original metal
Non-sealing iron surfaces painted to prevent oxidization

from

$325.99

All cylinder heads are both vacuum and pressure tested to verify valve seating, & integrity of water passages.
All cylinder heads are packaged in environmentally safe and recyclable containers that are the perfect size for returning your original core
All threads and machined surfaces are and repaired with technology that exceeds the original metal
Non-sealing iron surfaces painted to prevent oxidization

Magnum 1.6 Rocker and HE Pushrod Kit for Chevrolet 173 V6

from

$285.99

Magnum 1.6 Rocker and HE Pushrod Kit for Chevrolet 173 V6

from

$132.99

ENGINE ROCKER ARM

High Energy Hydraulic Flat Lifter Set for Buick 181-252 V6

from

$102.99

High Energy Hydraulic Flat Lifter Set for Buick 181-252 V6

from

$59.99

Head installation set
Meets or exceeds all original equipment specifications
Engineered and manufactured specifically for the aftermarket repair environment
Premium quality parts
Unsurpassed quality you can trust
Unsurpassed quality you can trust

from

$18.99

Product Features:

DESIGNED FOR THE TOUGHEST CONDITIONS – Engineered for hardworking vehicles that operate in severe conditions
STRONG AND DURABLE – Severe duty steel core gaskets designed slightly thicker to accommodate for machined surfaces
PREMIUM MATERIALS – High-grade stainless armor enhances strength and corrosion resistance while proprietary coatings enhance sealing and anti-stick properties
SUPERIOR SEAL – Precise embossed Printo seal sealing beads at all vital areas to eliminate leak paths
DESIGNED FOR IMPERFECT SEALING SURFACES – Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces

from

$4.99

Direct replacement – this engine cylinder head plug matches the fit and function of the factory part on specified years, makes and models
Ideal solution – this plug is a reliable replacement for an original part that is missing or has failed due to fatigue
Durable construction – this part is made from quality materials to ensure reliable performance and long service life
Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience

Top-Rated Engine Parts Brands For Your 1991 Buick Regal

Shop for the best-rated brands offering Engine Parts and other products for your 1991 Buick Regals. Below you’ll find some of our best rated Engine Parts from Felpro, Sealed Power, and Dorman, and more. Engine Parts from these brands that fit a 1991 Regal start at just $0.43 and are rated as high as 4.6 stars. OEM and aftermarket Engine Parts don’t get more top quality, durable, and affordable than from the brands below.

Popular Felpro 1991 Buick Regal Engine Parts

When it comes to maintaining or upgrading your 1991 Buick Regal, using quality Engine Parts is essential to ensure durability and a perfect fit. Felpro ticks all of those boxes. We offer a wide selection of Felpro Engine Parts, specifically designed for the 1991 Buick Regal. With over 3 Felpro brand Engine Parts in stock, you’re sure to find what you need. The prices for these top-notch parts start as low as $22.49, with an average price of just $27.82. Plus, with over 69 customer reviews and an average rating of 4.6 stars, you can trust that our Felpro Engine Parts will get the job done right. Choose Advance Auto Parts for reliability, quality, and expert-approved parts that keep your vehicle running strong.

from $22.49

(20)

Engine Valve Cover Grommet Set

“These parts fit well and it worked good”

from $27.99

(45)

Engine Valve Cover Gasket Set

“Fits and work great”

from $32.99

(4)

Engine Crankshaft Seal Kit

“It was easy to install since i was puting in a clutch already!”

Popular Sealed Power 1991 Buick Regal Engine Parts

Sealed Power auto parts is one of the highest quality Engine Part brands in the market. Any 1991 Buick Regal owner should feel confident when installing genuine Sealed Power parts in their vehicle. To ensure the best fit and performance for your 1991 Regal, Advance Auto Parts carries a full inventory of 3 Sealed Power Engine Parts. Plus you will be keeping your Buick in peak condition while saving money because prices on these Sealed Power Engine Parts range from $0.43 to $48.99, plus, with more than 4 customer reviews and an impressive 4.3 stars average rating, you can be confident the Fram Engine Parts below will deliver on both quality and value.

from $1.49

(1)

Engine Valve Spring Retainer Keeper

“24 in a box”

from $48.99

(1)

Engine Connecting Rod Bearing Set

“Easy to install and perfect fit”

from $0.43

(2)

Engine Valve Spring Retainer Keeper

“You guys are always great”

FAQs for 1991 Buick Regal Engine Parts

Which Engine Parts are best-sellers for 1991 Buick Regals?

Out of 126 Engine Parts that fit 1991 Buick Regals, the following parts are the top sellers:

Engine Valve Lifter (5681081) – $14.49
Engine Valve Lifter (12486346) – $24.99
Engine Oil Filler Cap: Twist-Lock, Direct Fit, Provides Tight Seal, 1 Pack (18481430) – $11.99

What’s the price range for 1991 Buick Regal Engine Parts?

Engine Part prices for the 1991 Buick Regal start at $0.43 and go up to $1,912.99 for the most premium parts.

What’s the average price of a Engine Part for a 1991 Buick Regal?

The average price for Engine Parts for the 1991 Buick Regal is $60.80. Keep in mind the variety of part types within our Engine Part category so you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Engine Parts for other Buick Regal model years?

Yes, we currently carry Engine Parts for 37 model years of Buick Regals between 1973 and 2017. Engine Parts are bought most frequently for the following model years: 2017, 2016, 2015, 2014, 2013, 2012, 2011, 2004, and 2003.

What are the cheapest Engine Parts for my 1991 Buick Regal?

The cheapest 1991 Buick Regal Engine Parts we carry in stock are:

Engine Valve Spring Retainer Keeper (19694179) – $0.43
Steel Cup Expansion Plug 34.3mm, Height 0.497 (3492699) – $1.29
Steel Cup Expansion Plug 1-1/2 In., Height 0.220 (3492249) – $1.29
Engine Valve Spring Retainer Keeper (19694163) – $1.49
Steel Cup Expansion Plug 34.3mm, Height 0.497 (Sold by each) (16140166) – $1.79

What are the top-rated Engine Parts that fit the 1991 Buick Regal?

Out of 968 reviews by customers, our 1991 Buick Regal Engine Parts have an average customer rating of . These are some of the highest-rated Engine Part types for the 1991 Buick Regal and their top-rated products:

Engine Gaskets and Seals
- Engine Crankshaft Seal Kit (19783574) – $32.99
- Multi-Purpose Seal (20441501) – $20.99
- Engine Valve Cover Gasket Set (5787629) – $27.99
Valve Cover and Cylinder Heads
- Engine Crankshaft Seal Kit (19783574) – $32.99
- Multi-Purpose Seal (20441501) – $20.99
- Engine Valve Cover Gasket Set (5787629) – $27.99

What types of Engine Parts do you sell for my 1991 Buick Regal?

As of 3/1/26, these are some of the most in-demand types of Engine Parts for a 1991 Buick Regal:

Can I get help with 1991 Buick Regal Engine Part orders?

Contact our customer support team, by chat or phone, through the help desk page, where you can find instant answers about Buick Engine Parts and more.

What is your return policy for Buick Regal Engine Parts?

Advance Auto Parts keeps returns simple. For new Buick Regal Engine Parts and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.

1991 Buick Regal Engine Parts

Dorman – Pipe Plug C.S. Square 3/8-18 NPT, Head Size 5/16 In. (Sold by each) (Part No.090-019)

Dayco – TIMING CHAIN KIT (Part No.KTC1105)

Imperial – Engine Oil Cooler (Part No.241046)

Cloyes Gear – Engine Timing Set (Part No.C-3003K)

NTK – Engine Camshaft Position Sensor (Part No.EC0323)

Victor Reinz – Engine Crankshaft Seal Kit (Part No.18-10119-01)

National – Multi-Purpose Seal (Part No.710162)

Melling – Stock Replacement Type Oil Pump Repair Kit (Part No.K135)

Victor Reinz – Engine Valve Cover Gasket (Part No.15-11037-01)

Melling – Stock Replacement OE Type High Volume Oil Pump (Part No.M-95HV)

Cloyes Gear – Engine Timing Crankshaft Sprocket (Part No.S849)

Mr. Gasket – Rear Main Seal Gasket (Part No.29)

National – Engine Harmonic Balancer Repair Sleeve (Part No.88176)

National – Shaft Repair Sleeve (Part No.99187)

Anchor – Engine Mount: Front Left, Front Right, 1 Piece (Part No.2292)

Sealed Power – Engine Camshaft Bearing Set (Part No.1234M)

Dorman – Brass Cup Expansion Plug 15/16 In., Height 0.380 (Sold by each) (Part No.565-016)

National – Shaft Repair Sleeve (Part No.99166)

Felpro – Engine Oil Filler Cap Seal (Part No.73193)

Dorman – Help – Fuel Injector O-Ring Assortment (Part No.90101)

Dorman – Rivet-Push In-Hole Diameter .500 In-Head Diameter 1 In-Length .900 In (Part No.799-105)

Carquest Premium – Oil Filler Cap (Part No.10077)

Melling – Stock Replacement Oil Pump Screen (Part No.55-S1)

Dorman – Rubber Expansion Plug 2 In. – Size Range 2 In. – 2-1/8 In. (sold by each) (Part No.570-014)

Sealed Power – Engine Crankshaft Main Bearing Set (Part No.7144MA)

Melling Select Performance – Engine Oil Pump Intermediate Shaft (Part No.12550)

Sealed Power – Engine Rocker Arm Kit (Part No.R-826)

Holley – Valve Covers – Muscle Series – Finned – SBC – Factory Orange (Part No.241-136)

National – Engine Harmonic Balancer Repair Sleeve (Part No.88176)

National – Multi-Purpose Seal (Part No.710162)

National – Engine Harmonic Balancer Kit (Part No.5000)

Cloyes Gear – Engine Timing Chain (Part No.C385)

Cloyes Gear – Engine Timing Chain Kit (Part No.9-0385SC)

MAHLE Original – Engine Timing Cover Seal (Part No.65022)

Cloyes Gear – Engine Timing Set (Part No.C-3071)

Cloyes Gear – Engine Timing Set (Part No.C-3048K)

Cloyes Gear – Engine Timing Chain (Part No.C375)

Cloyes Gear – Engine Balance Shaft Sprocket (Part No.2551)

Cloyes Gear – Engine Timing Camshaft Sprocket (Part No.S716T)

Cloyes Gear – Engine Timing Crankshaft Sprocket (Part No.S729)

Cloyes Gear – Engine Timing Camshaft Sprocket (Part No.S620T)

Cloyes Gear – Engine Timing Crankshaft Sprocket (Part No.S619)

Anchor – Engine Mount: Front Right, 1 Piece (Part No.2697)

Anchor – Engine Mount: Right, 1 Piece (Part No.2796)

GM Genuine Parts – White Engine Mount (Part No.10448575)

Felpro – Engine Valve Cover Gasket Set (Part No.VS 50080 R)

Felpro – Engine Crankshaft Seal Kit (Part No.BS 40625)

National – Multi-Purpose Seal (Part No.320691)

Felpro – Engine Timing Cover Gasket Set (Part No.TCS 45828)

Felpro – TIMING COVER GASKET SET WITH REPAIR SLEEVE (Part No.TCS 45976)

Felpro – Engine Valve Cover Gasket Set (Part No.VS 50320 R)

National – Shaft Repair Sleeve (Part No.99298)

Felpro – Engine Conversion Gasket Set (Part No.CS 9471)

Victor Reinz – Engine Valve Cover Gasket Set (Part No.15-10614-01)

Victor Reinz – Engine Timing Cover Gasket (Part No.71-14069-00)

MAHLE Original – Engine Timing Cover Gasket (Part No.T31259)

Sealed Power – Engine Camshaft Bearing Set (Part No.1492M)

Carquest Premium – Camshaft Sensor (Part No.CSC1326)

Carquest Premium – Multi-Use Connector (Part No.PTA1125)

MAHLE Original – Engine Camshaft Housing Gasket (Part No.H36978)

Carquest Premium – Engine Variable Valve Timing (VVT) Adjuster Magnet (Part No.CSA1531)

Felpro – Engine Camshaft Housing Gasket (Part No.72696)

Felpro – Engine Valve Cover Grommet Set (Part No.ES 72833)

Sealed Power – Engine Valve Spring Retainer Keeper (Part No.VK-115)

Dorman – Valve Covers: with Gasket, Direct Replacement, Plastic (Part No.264-967)

Sealed Power – Engine Valve Spring Retainer Keeper (Part No.VK-216)

Edelbrock – Signature Series Valve Covers: Buick 3.8L & 4.1L V6 1977 & Later, Chrome Steel (Part No.4486)

Sealed Power – Engine Valve Lifter (Part No.HT-2148)

Sealed Power – Engine Valve Lifter (Part No.HT-2148A)

Sealed Power – Engine Valve Lifter (Part No.HT-2095)

Felpro – Engine Oil Filler Cap Seal (Part No.73193)

ACDelco – Engine Hydraulic Valve Adjuster/Valve Lifter (Part No.HL124)

Dorman – Pipe Plug C.S. Square 3/8-18 NPT, Head Size 5/16 In. (Sold by each) (Part No.090-019)

Dorman – Valve Covers: with Gasket, Direct Replacement, Plastic (Part No.264-966)

Spartan – Engine Cylinder Head; Buick 3800 90-92 Cyl Head (Part No.2B45)

Spartan – Engine Cylinder Head; Chevrolet 2.8/3.1 87-94 Head (Part No.2CA4)

Competition Cams – Magnum 1.6 Rocker and HE Pushrod Kit for Chevrolet 173 V6 (Part No.RP1414-12)

Competition Cams – ENGINE ROCKER ARM (Part No.1216-12)

Competition Cams – High Energy Hydraulic Flat Lifter Set for Buick 181-252 V6 (Part No.869-12)