1991 GMC Sonoma Engine Parts

Essential 1991 GMC Sonoma Engine Parts

Melling – Stock Replacement Type Oil Pump Repair Kit (Part No.K-95B)

Stock Replacement Type Oil Pump Repair Kit

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$61.99
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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National – Shaft Repair Sleeve (Part No.99193)

Shaft Repair Sleeve

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$43.99
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:
  • 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
  • Installation tool reduces sleeve distortion and allows for installation without removal from the shaft
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Melling – Stock Replacement Oil Pump Screen (Part No.221S)

Stock Replacement Oil Pump Screen

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$20.49
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 ware, 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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Melling – Stock Replacement Type Oil Pump Intermediate Shaft (Part No.IS-95)

Stock Replacement Type Oil Pump Intermediate Shaft

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$16.29
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

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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Melling – Stock Replacement Oil Pump Bearing (Part No.M-62055)

Stock Replacement Oil Pump Bearing

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$4.49
Melling provides a replacement oil pump intermediate drive shaft bearing for AMC & GM 2.5L oil pump applications. This replacement upper bearing is used with the Melling M-62C oil pump. Melling replacement oil pump intermediate drive shaft bearings provide OE quality replacement bearings in the event the original oil pump bearing has been damaged or lost.

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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Felpro – Engine Timing Cover Repair Sleeve (Part No.16202)

Engine Timing Cover Repair Sleeve

from

$11.29
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:
  • Engine$aver Hardware cost-saving application
  • Repairs worn sealing surfaces to assure a leak free repair
  • 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
  • Validated for fit, form, and function
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Sealed Power – Engine Gasket Set (Part No.260-1730)

Engine Gasket Set

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$119.99
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:
  • Each 260 gasket set includes Fel-Pro gaskets (# 1 brand of gaskets)
  • Provides the exact gaskets the application requires.
  • State-of-the-art manufacturing
  • Exacting tolerances
  • Meets or exceeds OEM specifications
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Crankshaft Rebuilders – Remanufactured Crankshaft Kit (Part No.10650)

Remanufactured Crankshaft Kit

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$264.99
Remanufactured precision machined OE crankshafts.

Product Features:
  • Includes matching rod and main bearings.
  • Journals Micropolished.
  • All units subject to complete quality inspection.
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Sealed Power – Engine Rocker Arm Ball (Part No.MR-1783)

Engine Rocker Arm Ball

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$0.65
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.
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Dorman – Help – Oil Cooler Line Gasket Assortment (Part No.66201)

Oil Cooler Line Gasket Assortment

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$14.49
This oil cooler gasket is designed to match the fit and function of the original gasket on specified vehicles, and is engineered for durability and reliable performance.

Product Features:
  • Direct replacement – this oil cooler gasket is designed to match the fit and function of the original gasket on specified vehicles
  • Restores functionality – this gasket is made to fit and fully restore part functionality after the original gasket fails
  • 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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Felpro – Engine Oil Cooler Gasket Set (Part No.ES 70016)

Engine Oil Cooler Gasket Set

from

$7.49
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:
  • 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
  • Includes all parts needed to complete the repair
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Dorman – Rubber Expansion Plug 1-7/8 In. – Size Range 1-7/8 In. – 2 In. (Part No.02606)

Rubber Expansion Plug 1-7/8 In. - Size Range 1-7/8 In. - 2 In.

from

$6.79
Our uniquely designed pilot seal expansion plugs ensure a leak-proof fit.

Product Features:
  • Many sizes available
  • Conveniently available in packs of different quantities
  • Constructed from high quality steel, copper, brass, or rubber
  • Dorman’s Engine Expansion Plugs are constructed to strict engineering quality standards
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Melling – Stock Replacement Oil Pump Shaft Guide (Part No.M-55024)

Stock Replacement Oil Pump Shaft Guide

from

$1.99
Several Melling oil pump applications require the use of an oil pump shaft guide. Melling provides high quality shaft guides for specific pump applications. An oil pump shaft guide is necessary to connect the oil pump drive shaft to the intermediate drive shaft. Melling recommends installing a new oil pump shaft guide when it is needed.

Product Features:
  • Manufactured from high quality nylon 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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Dorman – Steel Cup Expansion Plug 2-7/64 In., Height 0.310 (sold by each) (Part No.555-080)

Steel Cup Expansion Plug 2-7/64 In., Height 0.310 (sold by each)

from

$2.49
This engine camshaft 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 camshaft 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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Sealed Power – Engine Valve Spring (Part No.VS-677)

Engine Valve Spring

from

$2.49
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:
  • Unsurpassed quality that you can trust
  • Uses leading edge materials
  • State-of-the-art manufacturing
  • Exacting tolerances
  • Meets or exceeds OEM specifications
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Sealed Power – Engine Piston Ring Set (Part No.E-628K)

Engine Piston Ring Set

from

$96.99
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:
  • Face of top rings coated with latest generation Plasma-Moly
  • Decreases friction
  • Very resistant to scuffing
  • Exacting tolerances
  • Meets or exceeds OEM specifications
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Felpro – Engine Valve Stem Oil Seal Set (Part No.SS 72861-1)

Engine Valve Stem Oil Seal Set

from

$23.49
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:
  • RIGHT TYPE — Valve stem seals designs are application-specific for the repair occasion using either deflector (umbrella) seals, O-ring style or positive seals
  • QUALITY MATERIALS — Each valve stem seal features materials based on the specific application for your vehicle repair
  • ENGINEERING EXPERTISE — Parts are reviewed, validated and approved by Fel-Pro engineers through rigorous research, development and testing
  • INSTALLATION AID — Installation tool included to protect inner lip of seal from damage during seal installation
  • COVERAGE — Available for domestic and foreign nameplate vehicles
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Sealed Power – Engine Camshaft Bearing Set (Part No.1492M)

Engine Camshaft Bearing Set

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
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Edelbrock – Rollin’ Thunder Camshaft for Chevy 4.3L 90 Deg V6 (Part No.3714)

Rollin' Thunder Camshaft for Chevy 4.3L 90 Deg V6

from

$528.99


Product Features:
  • Designed for Optimum Torque and Acceleration
  • Maximum Performance From Idle through Mid-Range
  • Matched to Edelbrock Performer Intakes
  • Includes Hydraulic Lifters and Assembly Lube
  • Major Improvement in Throttle Response and Torque
  • Use For Daily Drivers/Trucks/Vans/RVs/4x4s
  • Take The Guesswork Out Of Camshaft Selection
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Dorman – Harmonic Balancer Assembly (Part No.594-047)

Harmonic Balancer Assembly

from

$58.99
This direct replacement harmonic balancer features a stress-resistant rubber bond to properly absorb engine vibration. Stringent standards help ensure excellent tensile and impact strength for greater durability.

Product Features:
  • Ideal replacement – this harmonic balancer assembly exactly matches the fit and function of the original harmonic balancer for a direct replacement
  • Durable construction – stringent specifications and careful construction help ensure longevity
  • Thoroughly tested – this harmonic balancer has undergone dimensional verification, material validation and functional testing
  • 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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Dorman – Steel Cup Expansion Plug 42.3mm, Height 0.500 (sold by each) (Part No.555-110)

Steel Cup Expansion Plug 42.3mm, Height 0.500 (sold by each)

from

$1.29
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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Premium Drive Train – Engine Assembly (Part No.L4300)

Engine Assembly

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$2346.99
(PDT) Premium Drivetrain Engines are remanufactured to original equipment (OEM) demanding specifications by an OEM builder. Each engine assembly is manufactured with the highest technology equipment, the most intelligent engineering support, and the best practices available in remanufacturing today.

Product Features:
  • REMANUFACTURING and QUALITY CHECKS – ENGINE BLOCKS: Each block is magnafluxed for cracks and checked for any visible damage to the block or threaded holes before being repainted to the original color. Five CNC machining centers are programmed to precise specifications that meet or exceed those established by the OEM for each engine block. After the engine block is bored, decked, and chamfered, each cylinder is honed with the specified OEM cross-hatch pattern. 100% gauging of all cylinder bores for diameter and roundness after final honing operation. 100% new pistons, rings and bearings are installed in every engine.
  • CYLINDER HEADS: Every head is resurfaced and completely inspected for any visible damage or cracks to the casting or threaded holes. Any heads that have cracks in the combustion chamber are immediately scrapped, no weld repairs. Valve seats are machined, inspected and replaced if necessary. Valve guides are inspected with an air gauge and replaced if necessary. The cam bore is air gauge checked on overhead cam engines and machined if required. 100% new valves, seals and lifters are used in every head. All head and valve assemblies are quantified for leakage using a vacuum decay process.
  • CONNECTING RODS: Each connecting rod is measured against OEM specifications for bend, twist, and center-to-center length before use. The piston pin bore and bearing bore are measured with air gauges for proper dimensions. New torque to yield rod bolts and nuts are installed.
  • CRANKSHAFTS: Crankshafts are machined on a fully automated CNC crank grinder. This enables consistency and critical tolerances for each journal. All oil galley holes are chamfered and brushed after machining and the crankshaft is given a final wash to ensure cleanliness. Each crank is inspected for cracks, bow and all applicable run-out specs for rod and main journals.
  • DYNAMIC ENGINE TESTING: Sims Testing – All engines are cold motored and checked and measured for proper torque to turn, cylinder compression, oil flow, oil pressure as well as monitored for any unusual noises inside the assembly. All engine assemblies quantified for oil gallery, gasket, and casting leakage in the oil passageways.
  • Product might not be available in all states due to local laws.
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ACDelco – Ignition Knock (Detonation) Sensor (Part No.213-324)

Ignition Knock (Detonation) Sensor

from

$48.99
ACDelco GM Original Equipment Ignition Knock (Detonation) Sensors monitor the engine for pinging or spark knock, and are GM-recommended replacements for your vehicle’s original components. These sensors create a voltage signal based on the vibrations caused by erratic air/fuel mixture combustion; the engine control module uses these signals to adjust the ignition timing and air/fuel mixture. These original equipment ignition knock sensors have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

Product Features:
  • Sends signals to the engine control module (ECM) to adjust timing
  • Helps prevent damage to the engine caused by pre-ignition
  • 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
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Sealed Power – Engine Exhaust Valve (Part No.V-4345)

Engine Exhaust Valve

from

$14.99
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:
  • Chrome plated stem
  • Hard coating added to surface for strength & aiding in lubrication
  • Note – coating added in varying thicknesses depending on application
  • Innovative design, using leading edge materials
  • Utilizes ISO & QS certified manufacturing
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Felpro – Engine Crankshaft Repair Sleeve (Part No.16259)

Engine Crankshaft Repair Sleeve

from

$14.99
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:
  • Engine$aver Hardware cost-saving application
  • Repairs worn sealing surfaces to assure a leak free repair
  • 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
  • Validated for fit, form, and function
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Felpro – Cylinder Head Gasket Set (Part No.HS 9170 PT-2)

Cylinder Head Gasket Set

from

$81.99
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:
  • PROPRIETARY COATING — Nonstick anti-friction coating seals small surface scratches and imperfections
  • SEALING TECHNOLOGIES — Exclusive sealing innovations and technologies with proprietary materials and unique design features to ensure a superior seal for your repair
  • NO RETORQUE DESIGN — Steel core helps eliminate the need for retorquing head bolts
  • STRONG AND DURABLE — Features graphite or reinforced fiber facing material and steel armor for strength and durability
  • DESIGNED FOR IMPERFECT SEALING SURFACES — Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces
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Cloyes Performance – High Performance Timing Chain (Part No.9-130)

High Performance Timing Chain

from

$71.99
High Performance 3/8″ Pitch Double Roller Replacement True Roller Chain. 0.250 in. Roller Diameter. Heat Treated and Processed Links to Maximize Ultimate Breaking Strength while Remaining Ductile for Toughness. Prestressed to Increase Fatigue Life.

Product Features:
  • A timing chain synchronizes the rotation of the crankshaft and camshaft(s), ensuring proper timing of the engines valve events for each cylinder.
  • Our chains are engineered and manufactured with precision pitch control for proper chain-to-sprocket tooth fitment
  • From stock replacement to high performance, Cloyes has the most complete timing chain catalog
  • Cloyes parts are CAD designed and manufactured using premium materials. Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
  • Cloyes recommends 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
  • Refer to our online catalog for detailed application-specific information
  • Keep your engines valvetrain in perfect time with Cloyes, the world leader in timing drive systems
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MAHLE Original – Camshaft Cover (Part No.H36978)

Camshaft Cover

from

$4.49
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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Popular 1991 GMC Sonoma Engine Parts Categories

1991 GMC Sonoma Engine Parts

You count on your 1991 GMC Sonoma to run right. That means taking care of it with regular maintenance, necessary repairs, and the right parts. Advance Auto Parts can help with all of that thanks to our extensive inventory of trusted Engine Parts. With 287 Engine Parts ranging in price from $0.43 to $2,332.99, you’re sure to find everything you need for your 1991 GMC Sonoma.

Brands matter. If you want to shop a specific Engine Parts brand, we stock 22 different brands like Felpro, Dorman, and Sealed Power. 1991 GMC Sonoma Engine Parts start as low as $0.43!

One of the best ways to find top quality OEM or aftermarket Engine Parts is by asking professionals. Short of that, you can shop with confidence thanks to our 421 extensive product reviews on 1991 GMC Sonoma Engine Parts. Some of the top-rated Engine Parts products we carry are Stock Replacement OE Type Oil Pump with 4.9 stars and Stock Replacement OE Type High Volume Oil Pump with 4.2 stars.

Did we mention you can order your Engine Parts from our online catalog and have them shipped right to your garage? Or, if you feel like seeing the parts first-hand, search for your nearest Advance Auto Parts location above and pick up in-store when you’re ready. Browse our full Engine Parts inventory for your 1991 GMC Sonoma below to get started!

Top-Rated Engine Parts Brands For Your 1991 GMC Sonoma

Trusted Engine Parts OEM and aftermarket product brands are what Advance Auto Parts specializes in. The brands we work with are sure to keep that 1991 GMC Sonoma running right for years to come. In our inventory you’ll find brands like Felpro, Dorman, Sealed Power, and even more.

Popular National Engine Parts

You’ll find popular National brand products across Engine Internals. All are waiting to get your 1991 GMC Sonoma back on the road. Some of the top-rated National products in these categories are:
Multi Purpose Seal
from $17.79
(1)
Multi Purpose Seal
Crankshaft Seals
Multi Purpose Seal
from $33.99
(5)
Multi Purpose Seal
Crankshaft Seals
Engine Harmonic Balancer Repair Sleeve
from $15.29
(5)
Engine Harmonic Balancer Repair Sleeve
Timing Cover Seals

Top-Rated Felpro Engine Parts


If Felpro are what you’re looking for, our inventory holds plenty. We stock Felpro brand Engine Parts for your 1991 GMC Sonoma, and some of our most reviewed Felpro parts include:
TIMING COVER GASKET SET
from $11.49
(34)
TIMING COVER GASKET SET
Timing Cover Gasket Sets
TIMING COVER GASKET SET
from $19.99
(24)
TIMING COVER GASKET SET
Timing Cover Gasket Sets
CYLINDER HEAD BOLT SET
from $21.49
(17)
CYLINDER HEAD BOLT SET
Cylinder Head Bolt Sets

FAQs for 1991 GMC Sonoma Engine Parts

What are the most purchased Engine Parts for the 1991 GMC Sonoma?

Out of 287 Engine Parts for the 1991 GMC Sonoma, the most popular in our inventory are:
Engine Valve Lifter
from $24.79
This product is not rated
Engine Valve Lifter
Engine Valve Lifters
Multi Purpose Seal
from $12.99
(15)
Multi Purpose Seal
Crankshaft Seals

What are the top-rated 1991 GMC Sonoma Engine Parts?

Top-rated Engine Parts for your 1991 GMC Sonoma based on customer reviews/ratings are:
Stock Replacement OE Type Oil Pump
from $43.99
(13)
Stock Replacement OE Type Oil Pump
“Easy to install”
Stock Replacement OE Type High Volume Oil Pump
from $58.99
(10)
Stock Replacement OE Type High Volume Oil Pump
“Correct part ,works great”
Engine Mount: Front Left, Front Right, 1 Piece
from $12.99
(9)
Engine Mount: Front Left, Front Right, 1 Piece
“Fit as described”