2003 Cadillac CTS Fuel and Emissions Systems

Essential 2003 Cadillac CTS Fuel and Emissions Systems

DENSO – First Time Fit Oxygen Sensor (Part No.C5010422568ND)

First Time Fit Oxygen Sensor

from

$61.18
Denso First Time Fit oxygen sensors are constructed of the highest quality materials available. High-quality stainless steel, porous polytetrafluoroethylene (PTFE), fluorine rubber, aluminum oxide, high-grade platinum and ceramics are used in each DENSO sensor.

Product Features:
  • SUPERIOR DESIGN – Maximizes engine performance and fuel efficiency while reducing harmful emissions.
  • DOUBLE-PROTECTION COVER – Maintains proper unit temperature for quicker response times and protects the ceramic element against silicone and lead poisoning.
  • ALUMINUM-OXIDE TRAP LAYER – Keeps silicone and lead outside the ceramic element through DENSO’s exclusive design, preventing damage to the platinum electrode.
  • STAINLESS STEEL HOUSING – Resists corrosion and contamination with a rugged, watertight body.
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Carquest Premium – Fuel Injector Seal Kit (Part No.AS052)

Fuel Injector Seal Kit

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$6.49
CARQUEST fuel injector seal kits include the necessary O-rings and seals to properly reseal the injector, which is a recommended practice any time the injector is removed. Each kit services one injector and includes hard to find or previously dealer-only components.

Product Features:
  • Premium OE quality materials
  • Services one injector
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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
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Carquest Premium – Oxygen Sensor Connector (Part No.PTA1517)

Oxygen Sensor Connector

from

$53.99
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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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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Delphi – Fuel Pump Module Assembly: With Float Arm, Seal, Splices, Wire Harness (Part No.FG1940)

Fuel Pump Module Assembly: With Float Arm, Seal, Splices, Wire Harness

from

$324.99
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
  • Empty float height and float retention matches OE specifications and guarantees correct gas gauge reading
  • Lower amperage draws less load on vehicle’s electrical system
  • Part is validated, tested and matched to the right vehicle application
  • Always be sure to check and clean fuel tank to avoid unnecessary returns
  • Lower failure rates due to its innovative design and durability
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ACDelco – GM Original Equipment Fuel Tank Sending Unit (Part No.E2030351006ACD)

GM Original Equipment Fuel Tank Sending Unit

from

$804.53
The ACDelco GM Original Equipment Fuel Tank Sending Unit is a GM-recommended replacement for your vehicle’s original component. The Fuel Tank Sending Unit consists of a float connected to a thin, metal rod that is mounted to a resistor. Together, these components sense fluid level changes, which are reflected on the vehicle’s fuel gauge. This original equipment sending unit has been manufactured to fit your specific GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

Product Features:
  • Designed with thick wiper contacts and wear pads that provide durability, especially with today’s ethanol fuels
  • Design helps eliminate complications due to worn fingers on the sensor wiper arm, sulfur contamination, and failures of wire wound sensors and/or lead sensor kits
  • GM-recommended replacement part for your GM vehicle’s original factory fuel tank sending unit
  • 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.61184)

Fuel Injection Throttle Body Mounting Gasket

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$4.79
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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Dorman – Chrysler, GM Push Rivet (Part No.961-359D)

Chrysler, GM Push Rivet

from

$4.49
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 – Fuel Injector Seal Kit (Part No.274838)

Fuel Injector Seal Kit

from

$8.99
High-quality products that meet OE appearance and performance to provide professional technicians and DIYers with a cost-effective solution.

Product Features:
  • Designed to OE standards for ease of installation
  • High-quality materials withstand extreme conditions
  • Undergoes extensive testing to ensure reliability
  • As a global manufacturer of automotive aftermarket products, we maintain complete quality control throughout the manufacturing process
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Carquest – Fuel Injection Pressure Regulator (Part No.24086)

Fuel Injection Pressure Regulator

from

$49.05
High-quality products that meet OE appearance and performance to provide professional technicians and DIYers with a cost-effective solution.

Product Features:
  • Designed to OE standards for ease of installation
  • Our fuel pressure regulators are application specific for the perfect fit and form
  • A robust engineering design for greater resistance to leakage
  • 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 and aftermarket fuel injection products, complete quality control is maintained through the manufacturing process from componentry to finished product
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Carquest Premium – Fuel Cap: 10841, Twist-Lock, Direct Fit, Provides Tight Seal, 1 Pack (Part No.10841)

Fuel Cap: 10841, Twist-Lock, Direct Fit, Provides Tight Seal, 1 Pack

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$21.79
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:
  • 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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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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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 – Remanufactured GDI Fuel Injector (Part No.A511-1083)

Remanufactured GDI Fuel Injector

from

$74.99
CARQUEST’s line of remanufactured OEM fuel injectors are remanufactured using a proven 15 step process at a state-of-the-art remanufacturing facility in the U.S.A. Each injector is 100% tested under multiple operating conditions to ensure each injector meets or exceeds OE specifications for flow rate, spray pattern, coil resistance, form, fit and function. Each injector includes new external seals and o-rings.

Product Features:
  • Each unit is 100% tested to OE specifications.
  • Includes new o-rings and seals made of premium OE quality materials.
  • Includes application specific technical bulletin, where applicable.
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Dorman – Purge Valve (Part No.B7080352020DOR)

Purge Valve

from

$173.39
Purge Valve

Carquest Premium – Ambient Air Temperature Sensor (Part No.WTA1069)

Ambient Air Temperature Sensor

from

$12.99
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 – Mass Air Flow Sensor (MAF) – 100% NEW (Part No.MQ6214)

Mass Air Flow Sensor (MAF) - 100% NEW

from

$68.99
Advance Auto Parts is proud to carry all new mass air flow sensors that use high-quality components with the highest quality standards.

Product Features:
  • CARQUEST MAF use all new high-quality components at the highest quality standards.
  • Manufactured with new and advanced technology to perform, fit and function at OE specifications.
  • All new product that is tested with OEM equipment to OEM standards
  • Outperforms competition when tested in extreme environmental conditions
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Dorman – Help – Fuel Line Connector (Part No.55180)

Fuel Line Connector

from

$18.99
Replace only the damaged connectors instead of the entire fuel line with these direct-replacement fuel line connectors. Designed for easy installation and a precise fit, they are engineered to withstand extreme underhood conditions.

Product Features:
  • Direct replacement – these fuel line connectors fit and function like the vehicle’s original equipment connectors for reliable, leak-free performance
  • Quality construction – manufactured from premium materials for a long service life
  • Saves money – replace only the part, not the entire assembly
  • Excellent value – original equipment quality at a lower price
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ACDelco – Fuel Tank Pressure Sensor (Part No.16238399)

Fuel Tank Pressure Sensor

from

$69.99
ACDelco GM Original Equipment Fuel Tank Pressure Sensors are GM-recommended replacements for your vehicle’s original components. These sensors help measure pressure changes within your vehicle’s fuel tank. They also help alert your vehicle’s engine management computer if a leak occurs in your vehicle’s fuel system. These original equipment sensors have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

Product Features:
  • Help measure pressure changes within fuel tank
  • Help alert engine management computer if a leak occurs in fuel system
  • 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 Level Sensor (Part No.KBC1085)

Fuel Level Sensor

from

$441.99
Fuel Level Sensor

GM Genuine Parts – Oxygen Sensor: 4 Wires, Heated, Exact Fit (Part No.213-1516)

Oxygen Sensor: 4 Wires, Heated, Exact Fit

from

$116.99
GM Genuine Parts Oxygen (O2) Sensors are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These sensors are special feedback sensors on your vehicle’s exhaust system and measure the proportion of oxygen in exhaust gases. Using this measurement, the engine control module (ECM) can adjust the air/fuel ratio to near the optimal value of 14.7:1. At this ratio, engine performance, emissions, and fuel economy are all optimized. 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:
  • Detects oxygen content in the exhaust gases to help optimize emissions
  • 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 – Vapor Canister Purge Solenoid (Part No.CPC1001)

Vapor Canister Purge 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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ACDelco – Vapor Canister Vent Valve (Part No.22865590)

Vapor Canister Vent Valve

from

$39.99
ACDelco GM Original Equipment Vapor Canister Vent Solenoids are GM-recommended replacements for your vehicle’s original components. These solenoids communicate with the valve to open and close, allowing air to pass in and out of the vapor canister vent. These original equipment vapor canister vent solenoids have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

Product Features:
  • Controls fresh air flow to the canister
  • Sends fuel vapors to the engine for re-burn
  • Helps control fuel tank pressure
  • 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 – Vapor Canister Vent Solenoid (Part No.CPA1013)

Vapor Canister Vent Solenoid

from

$42.99
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 – Vapor Canister Vent Solenoid (Part No.CPA1649)

Vapor Canister Vent Solenoid

from

$35.99
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 – Secondary Air Inlet Valve Actuating Vacuum Tank (Part No.90502721)

Secondary Air Inlet Valve Actuating Vacuum Tank

from

$76.99
GM Genuine Parts Vacuum Tanks 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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2003 Cadillac CTS Fuel and Emissions Systems

You count on your 2003 Cadillac CTS 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 52 Fuel and Emissions Systems ranging in price from $2.39 to $804.53, you’re sure to find everything you need for your 2003 Cadillac CTS.

Brands matter. If you want to shop a specific Fuel and Emissions Systems brand, we stock 14 different brands like Felpro, Bosch, and Carquest Premium. 2003 Cadillac CTS Fuel and Emissions Systems start as low as $2.39!

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 870 extensive product reviews on 2003 Cadillac CTS Fuel and Emissions Systems. Some of the top-rated Fuel and Emissions Systems products we carry are UPPER INTAKE MANIFOLD GASKET/ PLENUM GASKET with 2.0 stars and Mass Air Flow Sensor (MAF) – 100% NEW with 1.0 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 Cadillac CTS below to get started!

Top-Rated Fuel and Emissions Systems Brands For Your 2003 Cadillac CTS

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 Cadillac CTS running right for years to come. In our inventory you’ll find brands like Felpro, Bosch, Carquest Premium, and even more.

Popular Bosch Fuel and Emissions Systems

You’ll find popular Bosch brand products across Oxygen Sensors. All are waiting to get your 2003 Cadillac CTS back on the road. Some of the top-rated Bosch products in these categories are:

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 2003 Cadillac CTS, and some of our most reviewed Carquest Premium parts include:

FAQs for 2003 Cadillac CTS Fuel and Emissions Systems

What are the most purchased Fuel and Emissions Systems for the 2003 Cadillac CTS?

Out of 52 Fuel and Emissions Systems for the 2003 Cadillac CTS, 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
Fuel Tank Cleaning Kit
from $12.49
This product is not rated
Fuel Tank Cleaning Kit
Fuel Tank Cleaning Kits
Chrysler, GM Push Rivet
from $4.49
This product is not rated
Chrysler, GM Push Rivet
Secondary Air Injection Pipe Retainer

What are the top-rated 2003 Cadillac CTS Fuel and Emissions Systems?

Top-rated Fuel and Emissions Systems for your 2003 Cadillac CTS based on customer reviews/ratings are:
UPPER INTAKE MANIFOLD GASKET/ PLENUM GASKET
from $45.99
(1)
UPPER INTAKE MANIFOLD GASKET/ PLENUM GASKET
“The over all quality of the product seems ok but sadly I was short 1 of the o-rings and since it cant be returned after I opened it I was forced to pu”
Mass Air Flow Sensor (MAF) - 100% NEW
from $99.99
(1)
Mass Air Flow Sensor (MAF) – 100% NEW
“Does not fit non electronic gas pedal”