2003 Chevrolet Blazer Fuel and Emissions Systems

Essential 2003 Chevrolet Blazer Fuel and Emissions Systems

Dorman – Fuel Pump Gasket (Part No.911-572)

Fuel Pump Gasket

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$14.49
This fuel pump tank seal is designed to match the fit and function of the original seal on specified vehicles, and is engineered for durability and reliable performance.

Product Features:
  • Direct replacement – this fuel pump tank seal is designed to match the fit and function of the original seal on specified vehicles
  • Restores functionality – reliable replacement for an original part that has failed due to fatigue or due for replacement during fuel pump tank service
  • Durable construction – recommended for replacement when the fuel pump or sensor is replaced
  • 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 – Deck Lid / Liftgate Ajar Switch Connector (Part No.PTA1077)

Deck Lid / Liftgate Ajar Switch Connector

from

$29.49
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 – Exhaust Gas Recirculation (EGR) Valve Gasket (Part No.EVA1045)

Exhaust Gas Recirculation (EGR) Valve Gasket

from

$1.49
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 – Fuel Injector O-Ring Seal Kit (Part No.C1012207766DOR)

Fuel Injector O-Ring Seal Kit

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$22.91
Engineered from rubber for superior resistance to fuel, oil and heat, Dorman’s Fuel Injector O-rings maintain an air-tight seal. This complete kit, containing multiple rings in various sizes, makes installation fast and convenient. O-rings are recommended for replacement any time you service the fuel injectors.

Product Features:
  • Naturally combats brittleness, cracking, and heat aging
  • O-rings also sold separately
  • Easy installation
  • Quality tested to ensure durability
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Dorman – Help – Fuel Sending Unit Retainer Kit (Part No.55810)

Fuel Sending Unit Retainer Kit

from

$8.49
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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Dorman – Body Bolt – M6-1.0 X 25mm (Part No.963-232D)

Body Bolt - M6-1.0 X 25mm

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$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 Premium – Ambient Air Temperature Sensor Connector (Part No.PTA1268)

Ambient Air Temperature Sensor 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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Delphi – Mass Air Flow Sensor (Part No.AF10055)

Mass Air Flow Sensor

from

$177.99
100% new; Delphi OE Technology Validated to match the vehicle applications; Manufactured to meet or exceed OE requirements.

Product Features:
  • Delphi mass air flow sensors are the global benchmark for accuracy and signal noise
  • Delphi mass air flow sensors feature high quality sensing elements for outstanding performance over a wide range of ambient temperatures
  • Delphi is a manufacturer of OE mass air flow sensors since their first use over 30 years ago
  • All parts are calibrated and tested to match the OE part
  • Probe solution offered wherever possible to reduce repair time by eliminating the need to replace the flow tube.
  • Delphi OE technology validated to match the vehicle applications
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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

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$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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GM Genuine Parts – Central Multi-Port Fuel Injector Mounting Bracket (Part No.88894355)

Central Multi-Port Fuel Injector Mounting Bracket

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$42.99
GM Genuine Parts Fuel Injector Retaining Brackets 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 – Fuel Injection Fuel Feed Pipe (Part No.15199620)

Fuel Injection Fuel Feed Pipe

from

$74.99
GM Genuine Parts Fuel Feed Lines are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These are a hose that transfers fuel from one point in the fuel system to another, this line is fed by the fuel pump and delivers the fuel through a fuel filter to either a carburetor or fuel injector. 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:
  • Directs fuel flow to optimize performance
  • 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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Delphi – Air Temperature Sensor (Part No.C6000175619DEL)

Air Temperature Sensor

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$22.52
Delphi’s Air Temperature Sensors are continuous function devices that change resistance inversely to temperature. They measure engine intake air temperature in the manifold, intake air duct, and air cleaner. A signal is then sent to the powertrain control module.

Product Features:
  • High-temperature thermoplastic shell for durability
  • Patented, lightweight, and cost-effective pre-mold subassembly
  • Design flexibility to match calibration criteria, meet mounting and packaging requirements, and integrate with systems
  • Customized packaging of mounting features, sealing options, connection system, and resistance output
  • Crimpless conductive path to the negative temperature coefficient thermistor and calibration certification for enhanced reliability and accuracy; also eliminates an electrical interface
  • 100 percent resistance calibration verification helps ensure quality and reliability
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ACDelco – 4-Way Male Black Multi-Purpose Pigtail (Part No.PT127)

4-Way Male Black Multi-Purpose Pigtail

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$46.49
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 Pump Module Assembly (Part No.FMD010083)

Fuel Pump Module Assembly

from

$59.99
New Platinum Pro Fuel Pump Module

Product Features:
  • 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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Dorman – Cam, Crank, Mass Air Flow Sensor Connector (Part No.645-785)

Cam, Crank, Mass Air Flow Sensor Connector

from

$37.99
Our multi-purpose pigtail connectors are engineered with extra long leads and include all necessary butt connectors for a complete repair.

Product Features:
  • Direct replacement for a proper fit every time
  • No special tools required for installation
  • Easy to install
  • Manufactured to strict engineering quality standards
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Carquest Premium – Ambient Air Temperature Sensor (Part No.WTA1743)

Ambient Air Temperature Sensor

from

$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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DENSO – Oxygen Sensor: 4 Wire, 15.35" Long, Heated, Exact Fit (Part No.234-4012)

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

from

$56.99
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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ACDelco – Manifold Absolute Pressure (MAP) Sensor (Part No.213-796)

Manifold Absolute Pressure (MAP) Sensor

from

$89.99
ACDelco GM Original Equipment Manifold Absolute Pressure (MAP) Sensors measure intake manifold pressure, and are GM-recommended replacements for your vehicle’s original components. The MAP sensor is a part of the fuel and engine management system. Its signal is used by the engine control module along with the throttle position sensor to calculate the amount of air entering the engine so that the correct amount of fuel is injected for optimum combustion. These original equipment manifold absolute pressure 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 controls for optimal engine performance
  • Designed to adjust engine performance to various altitudes
  • 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 Premium – Fuel Tank Pressure Sensor (Part No.ECA1048)

Fuel Tank Pressure Sensor

from

$60.99
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 – ABS Wheel Speed Sensor Connector (Part No.PTA1749)

ABS Wheel Speed Sensor Connector

from

$25.99
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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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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Carquest Premium – Fuel Cap Tester Adapter (Part No.12427)

Fuel Cap Tester Adapter

from

$34.99
Fuel Cap Tester Adaper for use with Stant fuel cap testers. Color coded for easy identification. Made of durable plastic.

Product Features:
  • BAR Certified adapters
  • Adapter check’s a fuel cap’s ability to hold pressure.
  • Adapters meet EPA standards for recommended fleet coverage.
  • Check adapter application chart for specific makes and models
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Carquest Premium – Vapor Canister Vent Solenoid (Part No.CPC1007)

Vapor Canister Vent Solenoid

from

$33.99
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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Felpro – Fuel Injection Plenum Gasket Set (Part No.MS 90176-1)

Fuel Injection Plenum Gasket Set

from

$9.49
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:
  • DESIGNED FOR IMPERFECT SEALING SURFACES — Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces
  • SEALING TECHNOLOGIES — Exclusive sealing innovations and technologies with proprietary materials and unique design features to ensure a superior seal for your repair
  • ENGINEERING EXPERTISE — Parts are designed, reviewed, validated and approved by Fel-Pro engineers through rigorous research and development
  • REAL-WORLD TESTED — Parts are tested on-vehicle and validated to ensure optimal performance on the road
  • EVERY PART FOR THE REPAIR — Fel-Pro gasket sets include every part needed for the repair unless otherwise noted
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ACDelco – Multi-Purpose Relay (Part No.F1757)

Multi-Purpose Relay

from

$33.49
ACDelco Professional Multi Purpose Relay is a high quality aftermarket replacement component for one or more of the following vehicle systems: hvac. This premium aftermarket relay is manufactured to meet or exceed your expectations for fit, form, and function.

Product Features:
  • Professional, premium aftermarket replacement
  • Provides the performance and dependability you expect from ACDelco
  • Manufactured to meet expectations for fit, form, and function
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KAI – Fuel Filler Neck (Part No.TNKFN700)

Fuel Filler Neck

from

$201.99
New Standard Replacement Fuel Tank Filler Neck, With 18 Gallon Tank Plastic Tank, Assembly [Includes Lower Neck]

Product Features:
  • 18 Gallon Plastic Tank, Includes Lower Neck
  • 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
See More

Carquest Premium – Fuel Injector Connector (Part No.ABA3464)

Fuel Injector 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.

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

Dorman – 2-Wire Throttle Body Injector (Part No.85139)

2-Wire Throttle Body Injector

from

$16.99
This fuel injection harness connector is designed to match the appearance and function of the original hardware on specified applications. Made of quality materials, it is engineered for reliable performance and durability.

Product Features:
  • Direct replacement – this fuel injection harness connector matches the appearance and function of the factory hardware on specified applications
  • Ideal solution – this connector 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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2003 Chevrolet Blazer Fuel and Emissions Systems

You count on your 2003 Chevrolet Blazer 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 109 Fuel and Emissions Systems ranging in price from $1.99 to $318.99, you’re sure to find everything you need for your 2003 Chevrolet Blazer.

Brands matter. If you want to shop a specific Fuel and Emissions Systems brand, we stock 19 different brands like Carquest Premium, Dorman, and AC Delco. 2003 Chevrolet Blazer 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 704 extensive product reviews on 2003 Chevrolet Blazer Fuel and Emissions Systems. Some of the top-rated Fuel and Emissions Systems products we carry are Fuel Injector with 4.4 stars and Locking Fuel Cap: 10506, Twist-Lock, Direct Fit, Provides Tight Seal, 1 Pack with 4.4 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 Chevrolet Blazer below to get started!

Top-Rated Fuel and Emissions Systems Brands For Your 2003 Chevrolet Blazer

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 Chevrolet Blazer running right for years to come. In our inventory you’ll find brands like Carquest Premium, Dorman, AC Delco, and even more.

Popular ACDelco Fuel and Emissions Systems

You’ll find popular ACDelco brand products across Air Flow Sensors and Gas Caps. All are waiting to get your 2003 Chevrolet Blazer back on the road. Some of the top-rated ACDelco products in these categories are:
Manifold Absolute Pressure (MAP) Sensor
from $89.99
(2)
Manifold Absolute Pressure (MAP) Sensor
MAP-Barometric Pressures
GM Original Equipment Fuel Cap
from $37.93
(5)
GM Original Equipment Fuel Cap
Gas Caps
Vapor Canister Purge Valve
from $60.99
(2)
Vapor Canister Purge Valve
Vapor Canister Purge Valves

Top-Rated Fuel and Emissions Systems


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

FAQs for 2003 Chevrolet Blazer Fuel and Emissions Systems

What are the most purchased Fuel and Emissions Systems for the 2003 Chevrolet Blazer?

Out of 109 Fuel and Emissions Systems for the 2003 Chevrolet Blazer, 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
Vapor Canister Vent Solenoid
from $36.99
(29)
Vapor Canister Vent Solenoid
Vapor Canister Vent Solenoids

What are the top-rated 2003 Chevrolet Blazer Fuel and Emissions Systems?

Top-rated Fuel and Emissions Systems for your 2003 Chevrolet Blazer based on customer reviews/ratings are:
Fuel Injector
from $318.99
(37)
Fuel Injector
“Great product”
Locking Fuel Cap: 10506, Twist-Lock, Direct Fit, Provides Tight Seal, 1 Pack
from $24.99
(36)
Locking Fuel Cap: 10506, Twist-Lock, Direct Fit, Provides Tight Seal, 1 Pack
“It’s the best product. Great price!”
Fuel Tank Strap Hardware Kit
from $12.49
(34)
Fuel Tank Strap Hardware Kit
“Good thanks”