2003 Cadillac CTS Fuel and Emissions Systems
Find Your Specific 2003 Cadillac CTS Fuel and Emissions Systems
Below you will find various in-demand Cadillac Fuel and Emissions Systems, components and accessories for your 2003 CTS. Advance Auto Parts has popular CTS parts like Fuel Pumps, Gas Caps, Air Flow Sensors and more. You’ll also find aftermarket and OEM Fuel and Emissions Systems for other CTS model years including
2011,
2012,
2013,
2014,
2015,
2016,
2017,
2018,
2019 and more. Select a category of 2003 Cadillac CTS Fuel and Emissions Systems below and start saving instantly.
Popular 2003 Cadillac CTS Fuel and Emissions Systems Categories
Essential Fuel and Emissions Systems for 2003 Cadillac CTSs
Carquest – Air Charge Temperature Sensor Connector (Part No.PT187)
from
$40.99
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.
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Product Features:
- Our control modules feature double wire bonds for better connections, greater dependability and longer life despite being subjected to intense vibration and the tough operating environment
- Copper slug heat sinks provide better heat dissipation to prevent heat from damaging the module
- Our ignition modules will respond to a weak signal from the crankshaft position sensor and begin energizing the coils immediately for better starts in cold weather
- High-temperature polymer housing reducing moisture intrusion and minimizes vibration damage for extended life and improved reliability
- Our ignition modules are durability tested for 500 thermal cycles ranging from -40C to +125C
GM Genuine Parts – Fuel Injector O-Ring Kit with Hardware for 3 Injectors (Part No.217-3096)
from
$74.99
GM Genuine Parts Fuel Injector Seal Kits are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These seals help provide liquid-tight connections between the fuel injector and related components. 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).
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Product Features:
- Helps provide a seal to prevent fuel leaks
- Helps seal combustion chamber from the elements
- 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
Felpro – Fuel Injector O-Ring Kit (Part No.ES 70599)
from
$7.49
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust
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Product Features:
- Meets or exceeds all original equipment specifications
- Application specific design to ensure a perfect fit
- Engineered for the sealing repair environment
- Unsurpassed quality you can trust
- Validated for fit, form, and function
ACDelco – GM Original Equipment Electric Fuel Pump Assembly (Part No.E3001422929ACD)
from
$577.85
The ACDelco Electric Fuel Pump Assembly and their related components are designed to meet the highest standards in the industry. This helps to ensure their ability to provide impressive fuel delivery performance, quick engine starts and continuous fuel supply, minimum noise and vibration, long-lasting durability and easy installation and fit. The ACDelco Fuel Pump is manufactured in ISO-9001 and QS-9000 registered facilities, quality is assured and backed by competitive warranty coverage.
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Product Features:
- Hybrid Modular Reservoir Assembly (MRA)
- Latest fuel level sensor design eliminates failures due to worn fingers on sensor wiper arm, sulfur contamination, wire wound sensors and lead sensor kits
- Improved electrical connections that eliminate below-cover burning due to vehicle vibration over previous designs
- Improved pump design to increase pump life and reduce pump noise over previous designs
- Pump changed from a roller vane design to a ge-rotor design
- The ACDelco fuel pump line includes: electric (in-line and in-tank), modular assemblies and mechanical pumps.
Felpro – Fuel Injection Throttle Body Mounting Gasket (Part No.61520)
from
$13.99
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust
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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
Carquest Premium – Remanufactured Fuel Injector (Part No.A511-1213)
from
$80.99
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.
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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.
Carquest Premium – Oxygen Sensor Connector (Part No.PTA3078)
from
$92.99
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.PTA1088)
from
$49.99
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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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
Motorad – Tethered Fuel Cap (Part No.MGC838T)
from
$27.49
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.
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Product Features:
- Come pre-assembled for quick and easy installation.
- Several fastener options to work with any fuel cap compartment configuration
- Fits vehicles orginally equipped with tether
- Reduces air pollution with proper sealing and venting
- Manufactured from durable, long-life materials
ACDelco – Vapor Canister Purge Valve (Part No.214-2314)
from
$42.99
ACDelco GM Original Equipment Vapor Canister Purge Valves are GM-recommended replacements for your vehicle’s original components. The purge valve controls the flow of fuel vapor from the vapor canister to the intake manifold. These original equipment vapor canister purge valves have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.
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Product Features:
- Controls vapor flow from canister to engine
- 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
Carquest Premium – Vapor Canister Purge Solenoid (Part No.CPC1018)
from
$46.99
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 – Fuel Tank Pressure Sensor (Part No.ECA1003)
from
$46.99
Pressure sensors are used within several operating systems on the vehicle. Subjects in this category measure the pressure of both liquid and air to include air in a positive pressure and negative pressure range. Pressure sensors report out as the result of an electrical device called a strain gauge which produces an analog or digital signal output dependent on the needs of the circuit. Pressures may be very low such as barometric pressure, or extremely high such as in a high-pressure fuel injection system.
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Product Features:
- Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
- Computer-Aided Design (CAD), laser scanning and 3D printing – utilizing Fused Deposition Modeling (FDM) and Stereolithography (SLA) – in the part design process ensures speed-to-market and a precise fit guaranteed.
- Robust circuit board design increases durability due to heat, shock, and random electro-magnetic pulses (EMP) and power spikes.
- Tin plated lead frame prevents corrosion and ensures a reliable terminal connection under adverse ambient conditions.
- 100% thermo-shock and vibration tested to ensure superior performance in extreme conditions.
- 100% end-of-line tested to ensure accurate signal output providing product reliability, every time.
Carquest Premium – Exhaust Gas Recirculation (EGR) Vacuum Regulator Solenoid Connector (Part No.PTA1107)
from
$24.49
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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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
Dorman – Help – Fuel Line Connector (Part No.55180)
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.
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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
ACDelco – Fuel Level Sensor Kit with Seal (Part No.SK1329)
from
$154.99
ACDelco GM Original Equipment Fuel Level Sensors are GM-recommended replacements for your vehicle’s original components. These sensors measure fuel level changes in your vehicle’s fuel tank, which are displayed on the vehicle’s fuel gauge. 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.
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Product Features:
- Measures fuel level changes displayed on fuel gauge
- 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
Delphi – Mass Air Flow Sensor (Part No.AF10142)
from
$127.99
100% new; Delphi OE Technology Validated to match the vehicle applications; Manufactured to meet or exceed OE requirements
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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
ACDelco – Vapor Canister Vent Valve (Part No.22865590)
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.
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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
Dorman – Chrysler, GM Push Rivet (Part No.961-359D)
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.
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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
ACDelco – Fuel Pressure Sensor (Part No.C3001742947ACD)
from
$139.36
Fuel Pressure Sensor
NTK – Switching Oxygen Sensor: 4 Wire, 12.75" Long, Heated, Direct Fit (Part No.21571)
from
$111.99
NTK is the world’s largest supplier and manufacturer of OEM oxygen sensors. Oxygen sensors play a critical role as part of the vehicle’s on-board diagnostic system in maintaining optimal engine performance, maximizing fuel efficiency and reducing harmful emissions. Providing constant closed loop feedback to the ECU, oxygen sensors help to control the air-fuel ratio while alerting OBDII systems of possible problems with fuel delivery or catalytic converter efficiency. A ceramics company at our core, NTK uses state-of-the art technology enabling control of the ceramic element used in our oxygen sensors from raw material to finished product. Trust The Sensor Specialist for full-line market support and OE application technology.
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Product Features:
- OEM QUALITY: NTK is the world’s largest supplier of original equipment oxygen sensors with renowned quality that meets or exceeds OEM specifications
- PRODUCT ENGINEERING: Based on OE expertise, but specifically engineered for the aftermarket, NTK Oxygen Sensors offer superior OE fit, form, function
- OE TECHNOLOGY: Upgraded to the latest OE technologies, NTK Oxygen Sensors are designed to reduce OE failures, enhance durability and performance
- EXTENSIVE TESTING: OE development includes vibration and thermal shock testing. Testing during manufacturing guarantees quality and reliability
- EASY INSTALLATION: NTK Oxygen Sensors are equipped with OE specified, water-resistant connectors and harness accessory hardware for easy installation
- ADVANCED CERAMIC SENSOR ELEMENT: 3-stage contaminant-resistant plasma jet and deposit trap overcoat protects against element poisoning
- NTK ADVANTAGE: Superior dual-coated platinum interface and thinner ceramic element produces fastest light off and response times with best durability
Dorman – Nylon Nut – 1/4 In. (No.14) (Part No.961-351D)
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.
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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
Carquest Premium – Fuel Cap Tester Adapter (Part No.12427)
from
$34.99
Fuel Cap Tester Adaper for use with Stant fuel cap testers. Color coded for easy identification. Made of durable plastic.
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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
NTK – Wideband Oxygen Sensor: Air-Fuel Ratio 5 Wire, 14.75" Long, Heated, Direct Fit (Part No.27016)
from
$59.99
NTK is the world’s largest supplier and manufacturer of OEM oxygen sensors. Oxygen sensors play a critical role as part of the vehicle’s on-board diagnostic system in maintaining optimal engine performance, maximizing fuel efficiency and reducing harmful emissions. While conventional switching oxygen sensors only switch rich or lean, wideband oxygen (or Air-Fuel Ratio) sensors produce a linear output signal that allows the ECU determine exactly how rich or lean an engine is running and make continuous and precise adjustments of the air-fuel mixture to stay closest to stoichiometric, providing the best possible combustion and fewest emissions. A ceramics company at our core, NTK uses state-of-the art technology enabling complete control of the ceramics used in our wideband oxygen sensors from raw material to finished product. Trust The Sensor Specialist for full-line market support and OE application technology.
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Product Features:
- OEM QUALITY: NTK is the world’s largest supplier of original equipment oxygen sensors with renowned quality that meets or exceeds OEM specifications
- PRODUCT ENGINEERING: Based on OE expertise, but specifically engineered for the aftermarket, NTK Oxygen Sensors offer superior OE fit, form, function
- OE TECHNOLOGY: Upgraded to the latest OE technologies, NTK Oxygen Sensors are designed to reduce OE failures, enhance durability and performance
- EXTENSIVE TESTING: OE development includes vibration and thermal shock testing. Testing during manufacturing guarantees quality and reliability
- EASY INSTALLATION: NTK Oxygen Sensors are equipped with OE specified, water-resistant connectors and harness accessory hardware for easy installation
- ADVANCED CERAMIC SENSOR ELEMENT: 3-stage contaminant-resistant plasma jet and deposit trap overcoat protects against element poisoning
- NTK ADVANTAGE: Superior dual-coated platinum interface and thinner ceramic element produces fastest light off and response times with best durability
GM Genuine Parts – Secondary Air Inlet Valve Actuating Vacuum Tank (Part No.90502721)
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).
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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
Elring – Fuel Injector Seal (Part No.C1010681908ELR)
from
$2.51
Fuel Injector Seal
Carquest – Fuel Injection Pressure Regulator (Part No.24086)
from
$49.05
High-quality products that meet OE appearance and performance to provide professional technicians and DIYers with a cost-effective solution.
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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
Carquest Premium – Multi Purpose Relay (Part No.RAA1746)
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.
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ACDelco – GM Original Equipment Fuel Tank Sending Unit (Part No.E2030351005ACD)
from
$204.62
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.
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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
Upgrade your 2003 Cadillac CTS with Top-Quality Fuel and Emissions Systems
When it comes to maintaining or upgrading your 2003 Cadillac CTS, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your Cadillac or enhancing its overall performance, Fuel and Emissions Systems are key to keeping your CTS functioning at its best. At Advance Auto Parts, we offer a wide selection of 60 Fuel and Emissions Systems for the 2003 Cadillac CTS, designed to meet your needs without breaking the bank.
From
Fuel Pump
replacements to
Gas Caps
upgrades, we’ve got you covered with parts that fit your vehicle perfectly and ensure long-lasting performance.
Affordable Prices and Wide Selection
Shopping for Fuel and Emissions Systems for any vehicle can be a hassle, especially if you’re on a budget. But with Advance Auto Parts, you can find high-quality Fuel and Emissions Systems for your 2003 Cadillac CTS at great prices.
Our Fuel and Emissions Systems inventory for this model
ranges from just $2.51 to $797.33, with
an average price of $116.37.
Our 60 Fuel and Emissions Systems in stock come from 14 trusted brands, so you’re sure to find the right part for your 2003 Cadillac CTS without overspending.
Top Brands and High Customer Satisfaction
Advance Auto Parts takes pride in offering only the best brands in the automotive industry. For your 2003 Cadillac CTS, we stock popular OEM and aftermarket Fuel and Emissions Systems from top names
like FELPRO, Bosch, Carquest Premium, and more.
FELPRO Fuel and Emissions Systems
start at just $4.79 and boast an impressive 5 stars average rating from customers.
Bosch and Carquest Premium also bring quality to the table, with Fuel and Emissions Systems available starting at $13.49, and at an average 5 stars rating.
With 870 customer reviews and counting, our 2003 Cadillac CTS Fuel and Emissions Systems have a strong track record of reliability, ensuring you can trust your purchase.
Explore Related Parts and More
While you’re here, don’t forget to check out other essential categories that go hand in hand with Fuel and Emissions System upgrades. Explore related part types like Batteries and Chargers, Oil and Lubricants
and more to make sure your 2003 Cadillac CTS is always ready to roll. We’re committed to providing you with everything you need to keep your CTS in top shape, all in one place.
Start shopping confidently below for your 2003 Cadillac CTS!
Best-Selling Fuel Pumps for 2003 Cadillac CTSs
Enhance the driving experience in your Cadillac with 6 quality Fuel Pump components, starting at $39.99.
Delphi – Series 7000 Fuel Module (Part No.E3001422929DEL)
from
$650.80
Fuel modules are designed to provide uninterrupted flow of fuel to the engine at system pressure. Depending on customer needs, the Delphi Series 7000 Fuel Module can integrate a pump, fuel level sensor, fuel filter, reservoir with active and passive filling mechanisms, and regulator in a compact, modular package that is easy to install. The Delphi Series 7000 Fuel Module also offers an in-tank fuel filter with 10-12 µm filtration. The Delphi Series 7000 Fuel Module provides superior low fuel handling and fuel level sensing performance with its enhanced bottom reference design. It also offers reduced noise levels and improved pump durability compared to conventional fuel modules. The simplicity of design also results in lower cost. This module is targeted to meet California ZEV requirements.
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Product Features:
- Acetal cover can accommodate 116mm tank opening to permit integrated filter in reservoir
- Single stage turbine pump provides quiet, energy efficient operation
- Active reservoir-fill mechanism (high pressure jet pump) to maintain fuel supply in reservoir
- Passive reservoir fill mechanism helps fill the reservoir at low-fuel volumes
- High capacity filter media helps supply clean fuel to the injection system
- Available serviceable in-tank fuel filter for markets with poor quality fuels
ACDelco – GM Original Equipment Electric Fuel Pump Assembly (Part No.E3001422929ACD)
from
$577.85
The ACDelco Electric Fuel Pump Assembly and their related components are designed to meet the highest standards in the industry. This helps to ensure their ability to provide impressive fuel delivery performance, quick engine starts and continuous fuel supply, minimum noise and vibration, long-lasting durability and easy installation and fit. The ACDelco Fuel Pump is manufactured in ISO-9001 and QS-9000 registered facilities, quality is assured and backed by competitive warranty coverage.
Product Features:
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Product Features:
- Hybrid Modular Reservoir Assembly (MRA)
- Latest fuel level sensor design eliminates failures due to worn fingers on sensor wiper arm, sulfur contamination, wire wound sensors and lead sensor kits
- Improved electrical connections that eliminate below-cover burning due to vehicle vibration over previous designs
- Improved pump design to increase pump life and reduce pump noise over previous designs
- Pump changed from a roller vane design to a ge-rotor design
- The ACDelco fuel pump line includes: electric (in-line and in-tank), modular assemblies and mechanical pumps.
Delphi – Fuel Transfer Unit (Part No.FT4001)
from
$562.99
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.
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Product Features:
- Meet or exceeds OE requirements
- Transfers fuel within the tank
- Does not include primary fuel pump
Delphi – Fuel Pump Module Assembly: With Float Arm, Seal, Splices, Wire Harness (Part No.FG1216)
from
$379.99
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.
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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
Carquest Premium – Fuel Pump Module Assembly: Fuel Pump, Sending Unit and Strainer (Part No.M2496176)
from
$339.99
Carquest Premium fuel pump modules and assemblies are engineered by Carter Fuel Systems or Agility Auto Parts to meet or exceed Original Equipment (OE) specifications for fit, form and function. We have invested in industry-leading quality improvements like upgraded turbine impellers and 100% carbon commutators to deliver greater reliability. Carquest Premium fuel pump modules are supplied with the pump strainer and gaskets or seals when required for the application. Carquest Premium fuel pump modules are engineered with superior quality components to provide the longest life and reliable performance.
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Product Features:
- Meets or exceeds OE specifications for fit, form and function
- 100% carbon commutators provide resistance to aggressive fuels and double the life expectancy of the pump
- OE upgraded turbine impellers greatly reduce fuel pulsation
- All fuel pumps are 100% performance tested
- Includes installation gaskets or seals where applicable
Carquest Premium – Fuel Cap Tester Adapter (Part No.12422)
from
$39.99
Fuel Cap Tester Adaper for use with Stant fuel cap testers. Color coded for easy identification. Made of durable plastic.
Product Features:
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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
Most Popular 2003 Cadillac CTS Gas Caps
Customize your Cadillac with 5 Gas Caps products
like Gas Caps, all
priced under $24.99.
Carquest Premium – Fuel Cap: 10836, Twist-Lock, Direct Fit, Provides Tight Seal, 1 Pack (Part No.10836)
from
$17.79
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.
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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
Carquest Premium – Locking Fuel Cap: 10506, Twist-Lock, Direct Fit, Provides Tight Seal, 1 Pack (Part No.10506)
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:
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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
Carquest Premium – Locking Fuel Cap: 10522, Twist-Lock, Direct Fit, Provides Tight Seal, 1 Pack (Part No.10522)
from
$22.99
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:
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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
Motorad – Tethered Fuel Cap (Part No.MGC834T)
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:
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Product Features:
- Come pre-assembled for quick and easy installation.
- Several fastener options to work with any fuel cap compartment configuration
- Fits vehicles orginally equipped with tether
- Reduces air pollution with proper sealing and venting
- Manufactured from durable, long-life materials
Carquest Premium – Locking Fuel Cap (Part No.10517)
from
$20.99
None
Product Features:
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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
Top Picks for 2003 Cadillac CTS Air Flow Sensors
Upgrade Cadillac CTSs with top-quality Air Flow Sensors parts, including 4 OEM and aftermarket selections for your 2003 model.
Carquest – Air Charge Temperature Sensor Connector (Part No.PT187)
from
$40.99
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.
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Product Features:
- Our control modules feature double wire bonds for better connections, greater dependability and longer life despite being subjected to intense vibration and the tough operating environment
- Copper slug heat sinks provide better heat dissipation to prevent heat from damaging the module
- Our ignition modules will respond to a weak signal from the crankshaft position sensor and begin energizing the coils immediately for better starts in cold weather
- High-temperature polymer housing reducing moisture intrusion and minimizes vibration damage for extended life and improved reliability
- Our ignition modules are durability tested for 500 thermal cycles ranging from -40C to +125C
ACDelco – Multi-Purpose Wire Connector with Leads (Part No.PT2164)
from
$16.79
ACDelco Professional Air Charge Temperature Sensor Connector is a high quality aftermarket replacement component for one or more of the following vehicle systems: ignition, starting and charging, body-electrical and lighting, and/or engine fuel management. This premium aftermarket connector is manufactured to meet or exceed your expectations for fit, form, and function.
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Product Features:
- Professional, premium aftermarket replacement
- Provides the performance and dependability you expect from ACDelco
- Manufactured to meet expectations for fit, form, and function
Bosch – Oxygen Sensor (Part No.C5010209924BOS)
from
$59.97
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:
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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.
DENSO – First Time Fit Oxygen Sensor (Part No.C5010418449ND)
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$129.75
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.
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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.
In-Demand Fuel Injectors for 2003 Cadillac CTSs
Select from 14 premium Fuel Injectors parts for your 2003 Cadillac CTS, with prices ranging from $3.29 to $148.99.
Felpro – Fuel Injector O-Ring Kit (Part No.ES 70599)
from
$7.49
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust
Product Features:
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Product Features:
- Meets or exceeds all original equipment specifications
- Application specific design to ensure a perfect fit
- Engineered for the sealing repair environment
- Unsurpassed quality you can trust
- Validated for fit, form, and function
Felpro – UPPER INTAKE MANIFOLD GASKET/ PLENUM GASKET (Part No.MS 96062)
from
$45.99
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:
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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
- Each Fel-Pro gasket, no matter how small, is engineered to exacting standards with proprietary design, engineering and manufacturing processes
Carquest Premium – Mass Air Flow Sensor (MAF) – 100% NEW (Part No.MQ6229)
from
$99.99
Advance Auto Parts is proud to carry all new mass air flow sensors that use high-quality components with the highest quality standards.
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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
Dorman – Nylon Nut – 1/4 In. (No.14) (Part No.961-351D)
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$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.
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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
Carquest – Fuel Injector Seal Kit (Part No.274838)
from
$8.99
High-quality products that meet OE appearance and performance to provide professional technicians and DIYers with a cost-effective solution.
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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
Delphi – Fuel Injection Pressure Regulator (Part No.FP10379)
from
$35.49
100 years of OE experience, supplier to the world’s top automakers, OE Heritage and knowledge built into every aftermarket part.
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Product Features:
- Precisely manufactured internal valves, diaphragms and springs means excellent performance under all engine operating conditions
- Quiet operation, no audible regulator noise
- Robust diaphragm materials means longer life, improved durability and compatibility with a wide range of fuels
- Consistent and predictable fuel pressure throughout system range of control provides great drivability
Carquest Premium – Mass Air Flow Sensor (MAF) – 100% NEW (Part No.MQ7408)
from
$135.99
CARQUEST MAF sensors are 100% new and are produced by a certified OEM supplier that designs and manufactures new mass air flow sensors
Product Features:
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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
Delphi – Mass Air Flow Sensor (Part No.AF10161)
from
$148.99
100% new; Delphi OE Technology Validated to match the vehicle applications; Manufactured to meet or exceed OE requirements
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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
Felpro – Fuel Injection Throttle Body Mounting Gasket (Part No.61184)
from
$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:
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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
Carquest – Fuel Injection Pressure Regulator (Part No.24086)
from
$49.05
High-quality products that meet OE appearance and performance to provide professional technicians and DIYers with a cost-effective solution.
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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
Bosch – Fuel Injector: New (Part No.62534)
from
$62.99
Bosch is a recognized OE leader in fuel systems technology, with more than 45 years of gasoline fuel injection experience. The fuel injection program provides vast coverage for Domestic, European, and Asian vehicles.
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Product Features:
- Guaranteed OE fit, form and function
- Manufactured of the highest quality materials
- Provides precision flow and original spray pattern for optimal performance
- Product includes top and bottom mounting o-ring
- Maintains new-car smoothness and drivability
Carquest Premium – Reman Multi Port Fuel Injector (Part No.A211-1903)
from
$35.99
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.
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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
Victor Reinz – Fuel Injector O-Ring Kit (Part No.18-10027-01)
from
$8.79
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.
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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.
ACDelco – Fuel Injector Fuel Feed and Return Pipe O-Ring Kit with 2 O-Rings (Part No.217-3366)
from
$3.29
The ACDelco Professional Fuel Injector Seal Kit contains high quality aftermarket replacement components for one or more of the following vehicle systems: ignition, and/or engine fuel management. This premium aftermarket kit contains components that are manufactured to meet or exceed your expectations for fit, form, and function.
Product Features:
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Product Features:
- Professional, premium aftermarket replacement
- Provides the performance and dependability you expect from ACDelco
- Manufactured to meet expectations for fit, form, and function
Most Sold 2003 Cadillac CTS Oxygen Sensors
Explore our best-selling Cadillac parts for the 2003 CTS among 10 OEM and aftermarket options starting from $65.99.
Bosch – Oxygen Sensor: 4 Wire, 24.92" Long, Heated, Universal (Part No.15733)
from
$80.99
Bosch is the world’s leading supplier and original equipment manufacturer of Oxygen Sensors. Bosch invented the automotive oxygen sensor and leads the way in sensor technology and innovation. From overall sensor design to the critical ceramic element, Bosch is known worldwide for quality and performance.
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Product Features:
- Premium Bosch oxygen sensors are designed to improve fuel economy while reducing harmful emissions
- Includes Smart Link Connector, no soldering required
- No special tools required for installation
- Seared protection tube due to 100% functional quality test
- Performance meets or exceeds OE specifications
Bosch – Oxygen Sensor: 4 Wire, 12.2" Long, Heated, Exact Fit (Part No.16379)
from
$65.99
Bosch is the world’s leading supplier and original equipment manufacturer of Oxygen Sensors. Bosch invented the automotive oxygen sensor and leads the way in sensor technology and innovation. From overall sensor design to the critical ceramic element, Bosch is known worldwide for quality and performance.
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Product Features:
- Premium Bosch oxygen sensors are designed to improve fuel economy while reducing harmful emissions
- Direct Fit includes OE Connector for easy installation
- Performance meets or exceeds OE specifications
- True Direct-fit OE connectors and harness
Bosch – Oxygen Sensor: 4 Wire, 15.75" Long, Heated, Exact Fit (Part No.16378)
from
$88.99
Bosch is the world’s leading supplier and original equipment manufacturer of Oxygen Sensors. Bosch invented the automotive oxygen sensor and leads the way in sensor technology and innovation. From overall sensor design to the critical ceramic element, Bosch is known worldwide for quality and performance.
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Product Features:
- Premium Bosch oxygen sensors are designed to improve fuel economy while reducing harmful emissions
- Direct Fit includes OE Connector for easy installation
- Performance meets or exceeds OE specifications
- True Direct-fit OE connectors and harness
GM Genuine Parts – Oxygen Sensor: 4 Wires, Heated, Exact Fit (Part No.213-1516)
from
$89.99
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).
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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
NTK – Switching Oxygen Sensor: 4 Wire, 15.75" Long, Heated, Direct Fit (Part No.25727)
from
$101.99
NTK is the world’s largest supplier and manufacturer of OEM oxygen sensors. Oxygen sensors play a critical role as part of the vehicle’s on-board diagnostic system in maintaining optimal engine performance, maximizing fuel efficiency and reducing harmful emissions. Providing constant closed loop feedback to the ECU, oxygen sensors help to control the air-fuel ratio while alerting OBDII systems of possible problems with fuel delivery or catalytic converter efficiency. A ceramics company at our core, NTK uses state-of-the art technology enabling control of the ceramic element used in our oxygen sensors from raw material to finished product. Trust The Sensor Specialist for full-line market support and OE application technology.
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Product Features:
- OEM QUALITY: NTK is the world’s largest supplier of original equipment oxygen sensors with renowned quality that meets or exceeds OEM specifications
- PRODUCT ENGINEERING: Based on OE expertise, but specifically engineered for the aftermarket, NTK Oxygen Sensors offer superior OE fit, form, function
- OE TECHNOLOGY: Upgraded to the latest OE technologies, NTK Oxygen Sensors are designed to reduce OE failures, enhance durability and performance
- EXTENSIVE TESTING: OE development includes vibration and thermal shock testing. Testing during manufacturing guarantees quality and reliability
- EASY INSTALLATION: NTK Oxygen Sensors are equipped with OE specified, water-resistant connectors and harness accessory hardware for easy installation
- ADVANCED CERAMIC SENSOR ELEMENT: 3-stage contaminant-resistant plasma jet and deposit trap overcoat protects against element poisoning
- NTK ADVANTAGE: Superior dual-coated platinum interface and thinner ceramic element produces fastest light off and response times with best durability
Bosch – Oxygen Sensor (Part No.C5010209925BOS)
from
$89.10
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:
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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.
DENSO – Oxygen Sensor: 4 Wire, 15.79" Long, Heated, Exact Fit (Part No.234-4821)
from
$140.99
DENSO Oxygen Sensors are manufactured and tested to the strictest OE standards for unparalleled performance. 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.
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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
Carquest Premium – Oxygen Sensor Connector (Part No.PTA3078)
from
$92.99
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 – GM Original Equipment Oxygen Sensor (Part No.C5010209925ACD)
from
$90.99
The ACDelco GM Original Equipment Oxygen (O2) Sensor is a GM-recommended replacement for your vehicle’s original component. The Oxygen (O2) Sensor is a special feedback sensor on your vehicle’s exhaust system. This sensor measures the proportion of oxygen in the exhaust gases. Using this measurement, the engine management computer can adjust the air/fuel ratio near the optimum value of 14.7:1. At this ratio, engine performance, emissions, and fuel economy are all optimized. This original equipment oxygen sensor has been manufactured to fit your specific GM vehicle, providing the same performance, durability, and service life you expect from General Motors. When you are looking for a match to GM Original Equipment specifications in a replacement part for your GM vehicle, trust ACDelco to get the job done.
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Product Features:
- Detect oxygen content in the exhaust gases to optimize emissions and fuel economy
- 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
Walker Products – Walker Oxygen Sensor (Part No.C5010458176WKR)
from
$68.85
Walker Oxygen Sensors are precision made for outstanding performance and manufactured to meet and exceed all original equipment specification and test requirements.
Product Features:
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Product Features:
- Improved Engine Response and Performance
- Lower Emissions
- Improved Fuel Economy
- Longer Sensor Life
- Meets OEM Specifications Installation Notes: Vehicles equipped with Air Fuel Ratio Sensors may look very similar to the Oxygen Sensor. Please confirm the correct part before ordering and if the connector does not match, do not install
Top-Rated Fuel and Emissions Systems Brands For Your 2003 Cadillac CTS
Shop for the best-rated brands offering Fuel and Emissions Systems and other products for your 2003 Cadillac CTSs. Below you’ll find some of our best rated Fuel and Emissions Systems from FELPRO, Bosch, and Carquest Premium, and more. Fuel and Emissions Systems from these brands that fit a 2003 CTS start at just $4.79 and are rated as high as 5 stars. OEM and aftermarket Fuel and Emissions Systems don’t get more top quality, durable, and affordable than from the brands below.
Popular FELPRO 2003 Cadillac CTS Fuel and Emissions Systems
When it comes to maintaining or upgrading your 2003 Cadillac CTS, using quality Fuel and Emissions Systems is essential to ensure durability and a perfect fit. FELPRO ticks all of those boxes. We offer a wide selection of FELPRO Fuel and Emissions Systems, specifically designed for the 2003 Cadillac CTS. With over 3 FELPRO brand Fuel and Emissions Systems in stock, you’re sure to find what you need. The prices for these top-notch parts start as low as $4.79, with an average price of just $19.42. Plus, with over 110 customer reviews and an average rating of 5 stars, you can trust that our FELPRO Fuel and Emissions Systems will get the job done right. Choose Advance Auto Parts for reliability, quality, and expert-approved parts that keep your vehicle running strong.
from
$45.99
$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”
from
$7.49
$7.49
(109)
“Replaced the boring in my TBSS fuel injectors and there is no more leaks.”
Popular Bosch 2003 Cadillac CTS Fuel and Emissions Systems
Bosch auto parts is one of the highest quality Fuel and Emissions System brands in the market. Any 2003 Cadillac CTS owner should feel confident when installing genuine Bosch parts in their vehicle. To ensure the best fit and performance for your 2003 CTS, Advance Auto Parts carries a full inventory of 6 Bosch Fuel and Emissions Systems. Plus you will be keeping your Cadillac in peak condition while saving money because prices on these Bosch Fuel and Emissions Systems range from $59.97 to $89.10, plus, with more than 144 customer reviews and an impressive 5 stars average rating, you can be confident the Fram Fuel and Emissions Systems below will deliver on both quality and value.
FAQs for 2003 Cadillac CTS Fuel and Emissions Systems
Which Fuel and Emissions Systems are best-sellers for 2003 Cadillac CTSs?
Out of 60 Fuel and Emissions Systems that fit 2003 Cadillac CTSs, the following parts are the top sellers:
- Fuel Injector O-Ring Kit (3504360) – $7.49
- Fuel Tank Cleaning Kit (11692237) – $12.49
- Chrysler, GM Push Rivet (11910661) – $4.49
What’s the price range for 2003 Cadillac CTS Fuel and Emissions Systems?
Fuel and Emissions System prices for the 2003 Cadillac CTS start at $2.51 and go up to $797.33 for the most premium parts.
What’s the average price of a Fuel and Emissions System for a 2003 Cadillac CTS?
The average price for Fuel and Emissions Systems for the 2003 Cadillac CTS is $116.37. Keep in mind the variety of part types within our Fuel and Emissions System category so you are likely to find a wide range of prices across a variety of parts and components.
Does Advance Auto Parts sell Fuel and Emissions Systems for other Cadillac CTS model years?
What are the cheapest Fuel and Emissions Systems for my 2003 Cadillac CTS?
The cheapest 2003 Cadillac CTS Fuel and Emissions Systems we carry in stock are:
- Fuel Injector Seal (11474383) – $2.51
- Fuel Injector Fuel Feed and Return Pipe O-Ring Kit with 2 O-Rings (11906761) – $3.29
- Chrysler, GM Push Rivet (11910661) – $4.49
- Nylon Nut – 1/4 In. (No.14) (11911189) – $4.49
- Fuel Injection Throttle Body Mounting Gasket (20688699) – $4.79
What types of Fuel and Emissions Systems do you sell for my 2003 Cadillac CTS?
As of 2/5/25, these are some of the most in-demand types of Fuel and Emissions Systems for a 2003 Cadillac CTS:
Can I get help with 2003 Cadillac CTS Fuel and Emissions System orders?
Contact our customer support team, by chat or phone, through the help desk page, where you can find instant answers about Cadillac Fuel and Emissions Systems and more.
What is your return policy for Cadillac CTS Fuel and Emissions Systems?
Advance Auto Parts keeps returns simple. For new Cadillac CTS Fuel and Emissions Systems and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.
