1991 Buick Century Fuel and Emissions Systems

Essential 1991 Buick Century Fuel and Emissions Systems

Carquest Premium – Exhaust Gas Recirculation (EGR) Valve (Part No.EGC1381)

Exhaust Gas Recirculation (EGR) Valve

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$73.99
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.
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Carquest Premium – Multi Purpose Relay (Part No.RAC1499)

Multi Purpose Relay

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$31.49
Carquest premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.
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Dorman – Steel Fuel Tank (Part No.576-305)

Steel Fuel Tank

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$216.99
This replacement fuel tank is precision-engineered to match the fit and function of the original fuel tank on specified vehicles.

Product Features:
  • Reliable replacement – this fuel tank directly replaces the original fuel tank on specified vehicle years, makes and models
  • Durable construction – this fuel tank is made from the same rugged materials as the original part for dependable service
  • Quality assured – this part has been validated to ensure a quality fit and long service life
  • Trustworthy design – backed by team of product specialists in the United States
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Carquest Premium – Manifold Absolute Pressure Sensor (MAP) (Part No.ECE1015)

Manifold Absolute Pressure Sensor (MAP)

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$65.99
CARQUEST MAP sensors are manufactured with critical OEM components to ensure that your engine runs efficiently to reach the best gas mileage on your vehicle.

Product Features:
  • CARQUEST MAP sensors connectors are exact OE fit to ensure the proper vacuum is maintained to prevent power loss and to minimize internal contamination.
  • CARQUEST MAP sensors utilize high temperature resistant seals. Damaged seals can directly impact the vehicles fuel-to-air ratio, making it less fuel efficient.
  • CARQUEST MAP sensors are 100% individually tested for all product functionalities including proper vacuum seal and electrical output.
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Delphi – Fuel Injector O-Ring Kit (Part No.FH10101)

Fuel Injector O-Ring Kit

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$6.29
Fuel Injector O-Ring Kit

ACDelco – 2-Way Female Black Multi-Purpose Pigtail (Part No.PT288)

2-Way Female Black Multi-Purpose Pigtail

from

$59.99
ACDelco GM Original Equipment Pigtail Connectors are connectors ready to be spliced into vehicle harnesses, and are GM-recommended replacements for your vehicle’s original components. These original equipment pigtail connectors have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

Product Features:
  • Protective outer coverings help provide long-lasting durability
  • Color-coded wires allow for easy installation
  • 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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Felpro – Fuel Injection Throttle Body Mounting Gasket (Part No.60764)

Fuel Injection Throttle Body Mounting Gasket

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$7.99
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
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Spectra Premium – Sender Assembly (Part No.SP02N1H)

Sender Assembly

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$119.99
CARQUEST fuel pump sender assemblies feature exact fit, with design improvements, such as upgraded polymers, brushes, and commutators to ensure lasting durability in multiple fuel blends. Also features advanced rust-inhibiting finish for longer life.

Product Features:
  • Every single pump is 100% tested throughout the entire manufacturing process for worry free, out-of-the-box performance
  • Advanced rust-inhibiting finish for long-lasting durability
  • High-performance pump section assembly provides superior performance
  • Leading-edge inlet design to reduce friction and increase performance
  • Gradient density strainer designed for better contamination resistance
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Carquest Premium – Locking Fuel Cap: 10506, Twist-Lock, Direct Fit, Provides Tight Seal, 1 Pack (Part No.10506)

Locking Fuel Cap: 10506, Twist-Lock, Direct Fit, Provides Tight Seal, 1 Pack

from

$24.99
Manufactured with OEM quality materials and safety standards by an OE Supplier. Manufactured to pass all state and federal emissions requirements. Specifically designed pressure and vacuum relief valves to prevent evaporation of fuel. A leaking fuel cap can allow up to 30 gallons of gasoline to evaporate over the period of a year.

Product Features:
  • Protects your fuel from theft and vandalism
  • Passes all state and federal emissions tests
  • Manufactured from durable, long-life materials
  • Reduces air pollution with proper sealing and venting
  • Independently tested for emission control
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Spectra Premium – Fuel Filler Neck (Part No.FN13)

Fuel Filler Neck

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$123.99
Innovative engineering, manufacturing technology and quality control ensure that Spectra Premium fuel tank filler necks meet or exceed the performance of the original equipment they replace.

Product Features:
  • Unit is designed to OE fit, form and function requirements accomplished by leveraging our OE fuel system design expertise
  • Unit is dual coated for enhanced corrosion protection
  • Fit tested on the very same vehicle application for which it was developed verifying first-hand that the design fits properly and can be easily installed
  • Unit is leak tested after production to ensure product in free from fuel and / or evaporative leaks
  • Tested with OE fuel cap to prevent evaporative emission and check engine light failure
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ACDelco – 2-Way Female Black Multi-Purpose Pigtail (Part No.PT113)

2-Way Female Black Multi-Purpose Pigtail

from

$26.49
ACDelco GM Original Equipment Pigtail Connectors are connectors ready to be spliced into vehicle harnesses, and are GM-recommended replacements for your vehicle’s original components. These original equipment pigtail connectors have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

Product Features:
  • Protective outer coverings help provide long-lasting durability
  • Color-coded wires allow for easy installation
  • 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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KAI – Fuel Sending Unit (Part No.FSU010053)

Fuel Sending Unit

from

$69.99
New Platinum Pro Fuel Sending Unit, 78-87 Monte, Regallon, Cutlass, Without Eec, 2-Outlets

Product Features:
  • Without EEC, 2 Outlets
  • Meets All Federal Motor Safety Standards
  • No Drilling Needed For Installation
  • No Modifications Needed For Installation
  • Direct Fit Replacement For Your Vehicle
  • Same Form Fit And Function As OE
  • Check Out The Large Selection Of Parts Available For Your Vehicle
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Bosch – Bosch Oxygen Sensor (Part No.C5010126269BOS)

Bosch Oxygen Sensor

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$53.73
The Bosch oxygen sensor utilizes a mix of zirconium and yttrium oxides and other elements to form a tough base that withstands the intense stress to which oxygen sensors are subjected. Each element is incredibly strong for best-in-class performance and maximum service life.

Product Features:
  • OE-Equivalent.
  • Direct fit for easy installation.
  • OE Style connectors and wire lengths.
  • Base ceramic probe of Zirconium and Yttrium.
  • Patented Platinum Power Grid.
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Carquest Premium – Fuel Pump and Sender Assembly (Part No.E3653S)

Fuel Pump and Sender Assembly

from

$323.99
CARQUEST fuel pump sender assemblies feature exact fit, with design improvements, such as upgraded polymers, brushes, and commutators to ensure lasting durability in multiple fuel blends. Also features advanced rust-inhibiting finish for longer life.

Product Features:
  • Every single pump is 100% tested throughout the entire manufacturing process for worry free, out-of-the-box performance
  • Advanced rust-inhibiting finish for long-lasting durability
  • High-performance pump section assembly provides superior performance
  • Leading-edge inlet design to reduce friction and increase performance
  • Gradient density strainer designed for better contamination resistance
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DENSO – Oxygen Sensor: Upstream, 2 Wire, 14.80" Long, Not Heated, Exact Fit (Part No.234-2001)

Oxygen Sensor: Upstream, 2 Wire, 14.80" Long, Not Heated, Exact Fit

from

$43.99
DENSO Oxygen Sensors are manufactured and tested to the strictest OE standards for unparalleled peformance; Each component is precision built for exact replacement, and a first time fit; This innovative line features DENSO’s exclusive aluminum oxide trap layer, designed to protect the ceramic element from silicone and lead posining for improved engine performance, greater fuel efficiency, and unparalleled longevity; DENSO gives you the right part and the right fit, the first time.

Product Features:
  • Specifically designed to meet the increasing demands of today’s engines
  • 100% checked for high temperature signal output, air tightness, continuity, and heat resistance for optimal efficiency and performance
  • Coated with aluminum oxide to prevent silicone and lead from contacting the ceramic element and damaging the platinum electrode
  • Double protection cover helps maintain proper unit temperature for quicker response times, which is critical to your vehicle’s fuel efficiency
  • Manufactured with a rugged stainless steel housing and porous PTFE filter to resist corrosion and contamination
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GM Genuine Parts – Multi-Purpose Fuel Line O-Ring (Part No.19258137)

Multi-Purpose Fuel Line O-Ring

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$3.99
GM Genuine Parts Multi Purpose Seals 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
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Carquest Premium – Exhaust Gas Recirculation (EGR) Valve Gasket (Part No.EVA1004)

Exhaust Gas Recirculation (EGR) Valve Gasket

from

$7.49
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.
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Dorman – Help – Fuel Sending Unit Retainer Assortment (Part No.55812)

Fuel Sending Unit Retainer Assortment

from

$17.29
Recommended for replacement whenever the sending unit is serviced, this fuel tank sending unit lock ring securely retains the fuel pump assembly to the lock. Made of durable materials for reliable service.

Product Features:
  • Direct replacement – this fuel tank sending unit lock ring is made to match the fit and performance of the original ring on specific vehicle applications
  • Recommended for replacement whenever the sending unit is serviced, this fuel tank sending unit lock ring securely retains the fuel pump assembly to the lock
  • 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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Carquest Premium – Idle Speed Control Motor Connector (Part No.PTA1437)

Idle Speed Control Motor Connector

from

$19.99
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.

Product Features:
  • Premium quality materials for longer service life
  • Sealed connections (where applicable) to prevent environmental corrosion and performance issues
  • Global coverage for import and/or domestic applications
  • OE specified wire gauge to ensure a reliable electrical connection
  • Designed to meet or exceed OE specifications in form, fit and function
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Bosch – Fuel Pump Strainer (Part No.68001)

Fuel Pump Strainer

from

$11.99
This Bosch fuel strainer is manufactured to greater-than-OE specification for enhanced durability.

Product Features:
  • Recommended repair accessories designed to OEM standards to improve the function of the vehicle and uphold product warranty
  • Multilayered filter media with 99% efficiency
  • Robust aluminum-, plastic-, or surface-treated steel filter housing designed to withstand high pressure thus offering a longer fuel filter service life
  • High micron rating comparable to OE
  • Always recommend replacing fuel strainer when replacing a fuel pump to ensure long and reliable service life
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Delphi – Fuel Pump Hanger Assembly: With Float Arm, Lock Ring, Seal (Part No.HP10023)

Fuel Pump Hanger Assembly: With Float Arm, Lock Ring, Seal

from

$316.99
100 years of OE experience, supplier to the world’s top automakers, OE Heritage and knowledge built into every aftermarket part, comprehensive portfolio for a wide range of vehicles and model years.

Product Features:
  • Delphi is a global OE manufacturer and all fuel pumps are built to Delphi’s OE standards
  • Delphi pumps are designed to operate under extreme temperatures with quick engine starts and to avoid low-fuel hesitation, including alcohol fuels and blends
  • Metal tubes in Delphi hangers are routed so as to not contact the tank or vehicle underbody at any point eliminating noise and vibration during vehicle operation
  • Empty float height and float retention matches OE specifications and guarantees correct gas gauge reading
  • Restores fast pressure performance and system integrity, translating to better pumping through less energy
  • Lower failure rates due to its innovative design and durability
  • Part is validated, tested and matched to the right vehicle application
  • Lower amperage draws less load on vehicle’s electrical system
  • Always be sure to check and clean fuel tank to avoid unnecessary returns
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Carquest Premium – Idle Air Control Valve (Part No.ABA1661)

Idle Air Control Valve

from

$84.99
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.
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Carquest Premium – Alternator Connector (Part No.PTA1159)

Alternator Connector

from

$13.49
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.

Product Features:
  • Premium quality materials for longer service life
  • Sealed connections (where applicable) to prevent environmental corrosion and performance issues
  • Global coverage for import and/or domestic applications
  • OE specified wire gauge to ensure a reliable electrical connection
  • Designed to meet or exceed OE specifications in form, fit and function
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Carquest Premium – Fuel Injector Connector (Part No.AC761)

Fuel Injector Connector

from

$36.49
Pigtail connector allows replacement of damaged fuel injector connector.
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Dorman – Body Bolt – M6-1.0 X 25mm (Part No.963-232D)

Body Bolt - M6-1.0 X 25mm

from

$4.49
These bolts are manufactured using durable materials and corrosion-tested to ensure required strength and longevity.

Product Features:
  • Durable materials – manufactured to specific thread tolerance standards
  • Corrosion tested – hardware undergoes salt spray testing to ensure corrosion resistance
  • Multipurpose usefulness – can be used in a variety of applications, from auto to home
  • Trustworthy quality – backed by team of professional engineers and quality control specialists in the United States
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Carquest – Fuel Tank Straps (Includes 2 Straps) (Part No.578-020)

Fuel Tank Straps (Includes 2 Straps)

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$34.99
Innovative engineering, manufacturing technology and quality control ensure that Spectra Premium fuel tank straps meet or exceed the performance of the original equipment they replace.

Product Features:
  • Unit is designed to OE fit, form and function requirements accomplished by leveraging our expertise
  • Direct fit ensures safe, secure fuel tank installation
  • Product individually packaged and labeled to help reduce product damage prior to installation
  • Industry leading coverage on straps for plastic tanks
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Delphi – Fuel Tank Cleaning Kit (Part No.FC01)

Fuel Tank Cleaning Kit

from

$12.49
To perform a complete fuel pump replacement, clean the tank every time. Order the Delphi Fuel Tank Cleaning Kit (Part FC01). Remember, the original pump went into a clean fuel tank, to ensure the same level of performance, the new pump should too. 100 ye

Product Features:
  • Helps avoid premature fuel pump failure
  • Lint free towel included
  • Low suds formulation
  • Removes harmful contaminants from the fuel tank
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Dorman – Clip Nut – Wide Panel-No. 8 X 3/8 In, Panel Range .025 In – .125 In (Part No.45406)

Clip Nut - Wide Panel-No. 8 X 3/8 In, Panel Range .025 In - .125 In

from

$1.99
Dorman offers a comprehensive line of Clip / Spring Nuts for a range of automotive applications. They are available for use with a large variety of screw sizes, throat depths, and panel ranges.

Product Features:
  • Constructed of high-quality materials for long-lasting durability
  • Many different styles are available, including threaded and wide panel
  • Packaged in a variety of piece counts for use with both small and large projects
  • Also suitable for a broad range of industrial and commercial uses
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1991 Buick Century Fuel and Emissions Systems

You count on your 1991 Buick Century 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 Fuel and Emissions Systems. With 108 Fuel and Emissions Systems ranging in price from $1.99 to $479.99, you’re sure to find everything you need for your 1991 Buick Century.

Brands matter. If you want to shop a specific Fuel and Emissions Systems brand, we stock 19 different brands like Carquest Premium, Delphi, and Bosch. 1991 Buick Century Fuel and Emissions Systems start as low as $1.99!

One of the best ways to find top quality OEM or aftermarket Fuel and Emissions Systems is by asking professionals. Short of that, you can shop with confidence thanks to our 3,318 extensive product reviews on 1991 Buick Century Fuel and Emissions Systems. Some of the top-rated Fuel and Emissions Systems products we carry are Oxygen Sensor: 1 Wire, 14.57" Long, Non-heated, Exact Fit with 4.4 stars and Locking Fuel Cap with 4.3 stars.

Did we mention you can order your Fuel and Emissions Systems 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 Fuel and Emissions Systems inventory for your 1991 Buick Century below to get started!

Top-Rated Fuel and Emissions Systems Brands For Your 1991 Buick Century

Trusted Fuel and Emissions Systems OEM and aftermarket product brands are what Advance Auto Parts specializes in. The brands we work with are sure to keep that 1991 Buick Century running right for years to come. In our inventory you’ll find brands like Carquest Premium, Delphi, Bosch, and even more.

Popular Driveworks Fuel and Emissions Systems

You’ll find popular Driveworks brand products across Air Flow Sensors. All are waiting to get your 1991 Buick Century back on the road. Some of the top-rated Driveworks products in these categories are:
MAP Sensor
from $65.05
(12)
MAP Sensor
Manifold Air Pressure Sensors

Top-Rated Carquest Premium Fuel and Emissions Systems


If Carquest Premium are what you’re looking for, our inventory holds plenty. We stock Carquest Premium brand Fuel and Emissions Systems for your 1991 Buick Century, and some of our most reviewed Carquest Premium parts include:

FAQs for 1991 Buick Century Fuel and Emissions Systems

What are the most purchased Fuel and Emissions Systems for the 1991 Buick Century?

Out of 108 Fuel and Emissions Systems for the 1991 Buick Century, the most popular in our inventory are:
Body Bolt - M6-1.0 X 25mm
from $4.49
This product is not rated
Body Bolt – M6-1.0 X 25mm
Secondary Air Injection Pump Bolts

What are the top-rated 1991 Buick Century Fuel and Emissions Systems?

Top-rated Fuel and Emissions Systems for your 1991 Buick Century based on customer reviews/ratings are:
Oxygen Sensor: 1 Wire, 14.57" Long, Non-heated, Exact Fit
from $31.99
(43)
Oxygen Sensor: 1 Wire, 14.57" Long, Non-heated, Exact Fit
“Fit correct. Performing properly”
Locking Fuel Cap
from $23.99
(35)
Locking Fuel Cap
“Had a check engine light and when I scanned it, calls for a new gas cap. Instead of buying oem from the dealer or just an ordinary gas cap from a part”
Locking Fuel Cap: 10501, Screw On, Direct Fit, Provides Tight Seal, 1 Pack
from $24.99
(32)
Locking Fuel Cap: 10501, Screw On, Direct Fit, Provides Tight Seal, 1 Pack
“Lost old gas cap and replaced with this one, which comes with a lock (which you don’t have to use,FYI)”