2003 Buick Century Fuel and Emissions Systems

Essential 2003 Buick Century Fuel and Emissions Systems

Carquest Premium – Daytime Running Light Resistor Connector (Part No.PTA1501)

Daytime Running Light Resistor Connector

from

$28.49
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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GM Genuine Parts – Fuel Feed Pipe O-Ring (Part No.217-452)

Fuel Feed Pipe O-Ring

from

$3.49
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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ACDelco – GM Original Equipment Fuel Injector O-Ring Kit (Part No.C1013414748ACD)

GM Original Equipment Fuel Injector O-Ring Kit

from

$32.69
The ACDelco GM Original Equipment Fuel Injector O-Ring Kit is a GM-recommended replacement component that provides the same performance, durability, and service life as your factory original equipment.

Product Features:
  • 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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Carquest – Fuel Injector Connector (Part No.28426)

Fuel Injector Connector

from

$27.99
BWD is an aftermarket leader, providing a premium line of engine management products. BWD manufactures and distributes high technology critical components for late model domestic and import vehicles. BWD is constantly evolving to give customers the competitive edge they need to compete in today’s ever-changing marketplace.

Product Features:
  • 100% pure copper windings in primary and secondary bobbins improve durability and provide higher resistance to internal shorts and dielectric breakdown
  • Electronic ignition module profile and feedback signal ensures proper OE fit, form, and function
  • Thermoplastic housing withstands heat stress for enhanced durability
  • Internal core made from grain-oriented electrical steel limits loss factor within magnetic circuit to reduce heat that may reduce coil endurance
  • External core made from oriented silicon steel ensures durability and longevity
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GM Genuine Parts – Fuel Injector and Insulator Retainer (Part No.17113670)

Fuel Injector and Insulator Retainer

from

$21.79
GM Genuine Parts Fuel Injector and Insulator Retainer Kits 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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GM Genuine Parts – GASKET-EGR VLV (Part No.219-304)

GASKET-EGR VLV

from

$15.99
GM Genuine Parts Gas Recirculation (EGR) Valve Cover Gaskets are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These gaskets help provide a gas-tight seal for the EGR valve, and they should be replaced whenever you service the EGR valve. 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:
  • Helps provide a leak-free seal
  • Allows exhaust pollutants to enter the engine for re-burn
  • Helps the engine emission system operate properly
  • 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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DENSO – Oxygen Sensor: 4 Wire, 15.35" Long, Heated, Exact Fit (Part No.234-4018)

Oxygen Sensor: 4 Wire, 15.35" Long, Heated, Exact Fit

from

$66.99
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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Dorman – Nylon Shield Retainer- Ford and GM (sold by each) (Part No.700-614)

Nylon Shield Retainer- Ford and GM (sold by each)

from

$0.99
Constructed of quality materials, this multi-purpose retainer provides the same function and versatility as the original equipment retainer ensuring long 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 long-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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Carquest Premium – Vapor Canister Vent Solenoid (Part No.CPA1071)

Vapor Canister Vent Solenoid

from

$36.99
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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Spectra Premium – Fuel Filler Neck (Part No.FN688)

Fuel Filler Neck

from

$120.99
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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Carquest Premium – Oxygen Sensor Connector (Part No.PTA3163)

Oxygen Sensor Connector

from

$40.99
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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Dorman – Fuel Level Sensor And Gasket (Part No.911-008)

Fuel Level Sensor And Gasket

from

$48.99
This fuel level sensor is designed to match the fit and function of the original sensor on specified vehicles, and is engineered for durability and reliable performance.

Product Features:
  • Direct replacement – this fuel level sensor is designed to match the fit and function of the original sensor on specified vehicles
  • Ideal solution – this sensor is a reliable replacement for an original part that has failed due to fatigue or electrical malfunction
  • Durable construction – this sensor is made from quality components to ensure reliable performance and a 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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Dorman – Pigtail -Evap. Canister Vent Valve Solenoid , Red, 2-way with Leads (Part No.645-631)

Pigtail -Evap. Canister Vent Valve Solenoid , Red, 2-way with Leads

from

$37.99
Make better electrical repairs and accessory installations with this pigtail connector. Designed for a clean appearance when installed, it features weatherproof terminals and a locking tab for a reliable quick disconnect electrical connection.

Product Features:
  • Professional appearance – this electrical pigtail is designed for a clean, professional look when installed
  • Convenient solution – this pigtail connector allows the circuit to be quickly disconnected for service or occasional use
  • Durable construction – this pigtail connector features weatherproof seals and a locking tab for a reliable connection
  • Versatile component – this connector can be used in a variety of repairs and custom installations
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Carquest Premium – Mechanical Fuel Pump 260575: Includes Gasket (Part No.260575)

Mechanical Fuel Pump 260575: Includes Gasket

from

$32.49
Carquest Premium mechanical fuel pumps are engineered by Carter Fuel Systems or Agility Auto Parts to meet or exceed Original Equipment (OE) specifications for fit, form and function. Every mechanical fuel pump is 100% tested throughout the entire manufacturing process for worry-free performance. Carquest Premium mechanical fuel pumps include the installation gaskets needed for each application. Carquest Premium mechanical fuel pumps are engineered with superior quality components to provide the longest life and reliable performance

Product Features:
  • Meets or exceeds OE specifications for fit, form and function
  • Special heat-treated rocker arms and case-hardened pins to ensure lasting performance
  • All fuel pumps are 100% performance tested
  • Includes installation gaskets or seals where applicable
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Carquest – Multi Purpose Relay (Part No.83A1003)

Multi Purpose Relay

from

$20.49
High-quality products that meet OE appearance and performance to provide professional technicians and DIYers with a cost-effective solution.

Product Features:
  • High-quality products that meet OE appearance and performance to
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Carquest Premium – Idle Air Control Valve (Part No.ABA1633)

Idle Air Control Valve

from

$59.99
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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GM Genuine Parts – Fuel Tank Sending Unit Lock Ring (Part No.TR11)

Fuel Tank Sending Unit Lock Ring

from

$9.99
GM Genuine Parts Fuel Tank Lock Rings 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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Dorman – Oxygen Sensor Pigtail (Part No.645-668)

Oxygen Sensor Pigtail

from

$62.99
Make better electrical repairs and accessory installations with this pigtail connector. Designed for a clean appearance when installed, it features weatherproof terminals and a locking tab for a reliable quick disconnect electrical connection.

Product Features:
  • Professional appearance – this electrical pigtail is designed for a clean, professional look when installed
  • Convenient solution – this pigtail connector allows the circuit to be quickly disconnected for service or occasional use
  • Durable construction – this pigtail connector features weatherproof seals and a locking tab for a reliable connection
  • Versatile component – this connector can be used in a variety of repairs and custom installations
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Carquest Premium – Manifold Absolute Pressure Sensor (MAP) (Part No.ECC1178)

Manifold Absolute Pressure Sensor (MAP)

from

$52.99
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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Motorad – Tethered Gas Cap: Non-Locking, Original Equipment Manufacturer, Reduces Air Pollution, 1 Pack (Part No.MGC817T)

Tethered Gas Cap: Non-Locking, Original Equipment Manufacturer, Reduces Air Pollution, 1 Pack

from

$23.99
Experience uncompromising quality and emissions compliance with these tethered fuel caps. Manufactured with top-tier materials and rigorous production and safety standards adhering to Original Equipment Manufacturer guidelines. Designed meticulously to meet both state and federal emissions requirements, it ensures environmental responsibility. With its specifically engineered pressure and vacuum relief valves, fuel evaporation becomes a thing of the past. Bid farewell to the risk of losing up to 30 gallons of precious gasoline over a year due to a leaking fuel cap. Trust in our superior construction to safeguard your fuel and contribute to a greener future.
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ACDelco – Ambient Temp Sensor (Part No.P4025360706ACD)

Ambient Temp Sensor

from

$15.94
Ambient Temp Sensor

Victor Reinz – EGR Valve Gasket (Part No.71-13764-00)

EGR Valve Gasket

from

$6.99
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.
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Carquest – Exhaust Gas Recirculation (EGR) Valve Motor Connector (Part No.PT5511)

Exhaust Gas Recirculation (EGR) Valve Motor Connector

from

$38.99
BWD is an aftermarket leader, providing a premium line of engine management products. BWD manufactures and distributes high technology critical components for late model domestic and import vehicles. BWD is constantly evolving to give customers the competitive edge they need to compete in today’s ever-changing marketplace.

Product Features:
  • Our distributor caps are made of high dielectric strength, glass/mineral reinforced polyester resin for less carbon tracking, greater resistance to electrical breakdown, and superior performance
  • Solid brass terminals (where available) make better connections and greater resistance to electrical pitting and corrosion
  • RFI resistors where specified to eliminate radio static and potential ECU-damaging spikes
  • With industry leading expertise, when original equipment fails our products are designed to fix the inherent failure issues
  • BWD is a global manufacturer of original equipment ignition products, complete quality control is maintained through the manufacturing process from componentry to finished product
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ACDelco – Fuel Injection Pressure Regulator (Part No.17113622)

Fuel Injection Pressure Regulator

from

$139.99
ACDelco GM Original Equipment Fuel Injection Pressure Regulators are mechanical valves that control fuel pressure in the fuel injector rail, and are GM-recommended replacements for your vehicle’s original components. Their spring-loaded valves return excess fuel back to the fuel tank. These original equipment fuel injection pressure regulators have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

Product Features:
  • Helps provide constant fuel pressure to the injectors
  • Assists in cold engine starts
  • Helps maintain stable engine idle
  • 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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Delphi – Delphi Idle Control Valve (Part No.C4030210530DEL)

Delphi Idle Control Valve

from

$102.13
For more than a century, Delphi has been making the parts cars are born with. Delphi is proud of its OE heritage, and over the years they have used that experience to expand into a global aftermarket supplier.

Product Features:
  • Corrosion resistant housing material
  • Premium materials for longer service life
  • Meets or exceeds OEM specifications
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ACDelco – Original Equipment Exhaust Gas Recirculation (EGR) Valve (Part No.B7010435625ACD)

Original Equipment Exhaust Gas Recirculation (EGR) Valve

from

$216.07
The ACDelco Original Equipment EGR valve is a direct fit OEM replacement that guarantees the same performance and quality provided by the vehicle manufacturer.

Product Features:
  • Genuine OES Quality
  • Meets federal emissions regulations
  • Increases fuel efficiency while eliminating the potential for malfunctions
  • Includes gaskets and required sealing components.
  • Robust valve design provides carbon resistance, durability and long life, high quality and engine control module controllability.
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Dorman – Fuel Tank Straps (Part No.578-006)

Fuel Tank Straps

from

$36.49
Recommended for replacement whenever the fuel tank is replaced or serviced, this strap is a direct replacement for the original. Manufactured from durable materials to withstand harsh road and weather conditions.

Product Features:
  • Direct replacement – this fuel tank strap matches the fit, function and performance of the original part
  • Ideal solution – recommended for replacement when the fuel tank is serviced or replaced
  • Durable construction – manufactured from quality materials for superior service and reliability
  • Trustworthy design – backed by 100 years of automotive aftermarket experience
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Carquest Premium – Vapor Canister Vent Solenoid Connector (Part No.PTA1066)

Vapor Canister Vent Solenoid Connector

from

$52.99
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
See More

2003 Buick Century Fuel and Emissions Systems

You count on your 2003 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 107 Fuel and Emissions Systems ranging in price from $0.99 to $348.99, you’re sure to find everything you need for your 2003 Buick Century.

Brands matter. If you want to shop a specific Fuel and Emissions Systems brand, we stock 19 different brands like Felpro, Carquest Premium, and Bosch. 2003 Buick Century Fuel and Emissions Systems start as low as $0.99!

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 892 extensive product reviews on 2003 Buick Century Fuel and Emissions Systems. Some of the top-rated Fuel and Emissions Systems products we carry are Fuel Injection Pressure Regulator with 3.9 stars and Oxygen Sensor: 4 Wire, 16.54" Long, Heated, Exact Fit with 4.8 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 2003 Buick Century below to get started!

Top-Rated Fuel and Emissions Systems Brands For Your 2003 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 2003 Buick Century running right for years to come. In our inventory you’ll find brands like Felpro, Carquest Premium, Bosch, and even more.

Popular Delphi Fuel and Emissions Systems

You’ll find popular Delphi brand products across Fuel Pumps and Air Flow Sensors. All are waiting to get your 2003 Buick Century back on the road. Some of the top-rated Delphi products in these categories are:
Air Charge Temperature Sensor
from $20.49
(1)
Air Charge Temperature Sensor
Air Charge Temperature Sensors

Top-Rated DENSO Fuel and Emissions Systems


If DENSO are what you’re looking for, our inventory holds plenty. We stock DENSO brand Fuel and Emissions Systems for your 2003 Buick Century, and some of our most reviewed DENSO parts include:

FAQs for 2003 Buick Century Fuel and Emissions Systems

What are the most purchased Fuel and Emissions Systems for the 2003 Buick Century?

Out of 107 Fuel and Emissions Systems for the 2003 Buick Century, the most popular in our inventory are:
Fuel Injector O-Ring Kit
from $7.49
(109)
Fuel Injector O-Ring Kit
Fuel Injector O-Ring Kits
Mass Air Flow Sensor (MAF) - 100% NEW
from $89.99
(1)
Mass Air Flow Sensor (MAF) – 100% NEW
Air Flow Meters and Mass Air

What are the top-rated 2003 Buick Century Fuel and Emissions Systems?

Top-rated Fuel and Emissions Systems for your 2003 Buick Century based on customer reviews/ratings are:
Fuel Injection Pressure Regulator
from $66.99
(62)
Fuel Injection Pressure Regulator
“Perfect fit for my 2005 Montana. Comes with the oring too.”
Oxygen Sensor: 4 Wire, 16.54" Long, Heated, Exact Fit
from $39.99
(59)
Oxygen Sensor: 4 Wire, 16.54" Long, Heated, Exact Fit
“great product”