2003 Chevrolet Trailblazer Engine Parts

Essential 2003 Chevrolet Trailblazer Engine Parts

GM Genuine Parts – Powertrain Control Module (Part No.19210065)

Powertrain Control Module

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$563.99
GM Genuine Parts Refurbished Engine Control Modules are designed, engineered, and tested to rigorous standards, and are backed by General Motors. Refurbishing GM Genuine Parts Engine Control Modules involve returning the failed part to a factory certified repair facility for cleaning, inspection, and diagnosis. Any faulty components are identified and replaced when necessary, and the repaired unit is tested again to ensure it functions to GM specifications. In addition, refurbishing also benefits the environment by returning components back into service rather than processing as scrap or simply disposing of them. 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:
  • This part requires programming and/or special setup procedures. GM Service Information describes the procedures and special tools needed to ensure proper operation in the vehicle
  • Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
  • Refurbishing is an industry standard practice that returns parts into service rather than scrapping them
  • Tested to ensure they perform to GM specifications
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Felpro – Fuel Injector O-Ring Kit (Part No.ES 71190)

Fuel Injector O-Ring Kit

from

$8.99
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:
  • Meets or exceeds all original equipment specifications
  • Application specific design to ensure a perfect fit
  • Engineered for the sealing repair environment
  • Unsurpassed quality you can trust
  • Validated for fit, form, and function
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Dorman – Help – Engine Oil Dipstick: Direct Replacement, Stainless Steel (Part No.917-381)

Engine Oil Dipstick: Direct Replacement, Stainless Steel

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$21.99
This engine oil dipstick is designed to match the fit and function of an original equipment dipstick in specified applications. Level marks are clearly distinguished and properly gauged for accuracy.

Product Features:
  • Ideal replacement – this engine oil dipstick is designed to match the fit and function of an original equipment dipstick in specified applications
  • Ideal solution – level marks are clearly distinguished and properly gauged for accuracy
  • Durable construction – designed and manufactured to strict specifications for reliable performance
  • Trustworthy quality – backed by a team of product experts in the United States and more than a century of automotive experience
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Carquest Premium – Camshaft Sensor (Part No.CSC1054)

Camshaft Sensor

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$45.99
A leader in vehicle electronic solutions, each premium product meets or exceeds OE specifications in appearance, fit, and function, ensuring easy installation and excellent performance. The product has been tested under extreme environments, including the

Product Features:
  • Reliable circuit board and product structure design, 3D proofing, and field test verification to ensure correct signal output at all speeds.
  • Manufactured in an anti-static environment to ensure reliability and stability.
  • Extreme temperature and salt spray tests simulate real-world vehicle conditions to ensure durability and reliability.
  • Providing this premium product line, we meet the service professionals needs with the highest quality product every time the part comes out of the box.
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Dorman – Timing Cover Kit – Includes Gasket (Part No.635-515)

Timing Cover Kit - Includes Gasket

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$102.99
This direct replacement timing cover matches the fit and function of the original equipment cover for a reliable repair. This part has undergone extensive testing to ensure adherence to precise design standards.

Product Features:
  • Direct replacement – this engine timing cover matches the fit and function of the original equipment cover
  • Durable construction – this part is specifically designed to withstand extreme underhood temperatures for a long service life
  • Cost-effective solution – offers original equipment quality at a competitive price
  • Quality tested – this part has undergone extensive testing to ensure a quality fit and long service life
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Sealed Power – Engine Crankshaft Main Bearing Set (Part No.7409M)

Engine Crankshaft Main Bearing Set

from

$259.99
Sealed Power« parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.

Product Features:
  • Steel-backed bronze alloy lining with overplate
  • Popular for fatigue resistance & strength – provides conformability required for older applications
  • State-of-the-art manufacturing
  • Exacting tolerances
  • Meets or exceeds OEM specifications
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Carquest Premium – 4WD Indicator Light Switch Connector (Part No.PTA1019)

4WD Indicator Light Switch Connector

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.

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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Felpro – Engine Timing Cover Gasket Set (Part No.TCS 45051)

Engine Timing Cover Gasket Set

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$26.49
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:
  • Timing cover set includes gaskets and seals necessary for timing chain/belt replacement job
  • 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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National – Shaft Repair Sleeve (Part No.99189)

Shaft Repair Sleeve

from

$38.49
National® has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:
  • Designed to repair damaged, grooved or worn shafts
  • Durable stainless steel construction for corrosion-free sealing surface that surpasses most original shaft specifications
  • Ideal for a shaft where indications of seal wear, such as tracks or grooves have developed
  • Ultra-thin construction (0.01/0.25mm wall thickness) allows original seal size to be used with minimal additional lip loading
  • Easy to install with removable flange and installation tool
  • Installation tool reduces sleeve distortion and allows for installation without removal from the shaft
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ACDelco – GM Original Equipment Motor Mount (Part No.A7000279839ACD)

GM Original Equipment Motor Mount

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$151.29
The ACDelco GM Original Equipment Motor Mount is a GM-recommended replacement component that provides the same performance, durability, and service life as your factory original equipment.

Product Features:
  • GM-recommended replacement part for your GM vehicle’s original factory component
  • Offering the quality, reliability, and durability of GM OE
  • Manufactured to GM OE specification for fit, form, and function
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Sealed Power – Engine Oil Pump Repair Kit (Part No.224-53582)

Engine Oil Pump Repair Kit

from

$139.99
Sealed Power« parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.

Product Features:
  • Unsurpassed quality that you can trust
  • Uses leading edge materials
  • State-of-the-art manufacturing
  • Exacting tolerances
  • Meets or exceeds OEM specifications
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Carquest Premium – Engine Variable Valve Timing (VVT) Solenoid (Part No.VVC1003)

Engine Variable Valve Timing (VVT) Solenoid

from

$66.99
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 – Engine Oil Level Sensor (Part No.FFA1035)

Engine Oil Level Sensor

from

$29.99
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 – Oil Filler Cap Gaske (Part No.A6150209855ACD)

Oil Filler Cap Gaske

from

$5.22
Oil Filler Cap Gaske

Cloyes Gear – Engine Timing Crankshaft Sprocket (Part No.S913)

Engine Timing Crankshaft Sprocket

from

$65.99
Along with the timing chain, tensioners, and guides, sprockets are an integral component within the timing system. Timing gears and sprockets are available as part of complete timing kits as well as for individual purchase and installation

Product Features:
  • Featuring precision-tooled or machined tooth form and precision-machined bore for true fit, timing chain sprockets offer reliability and dependability for engine rebuilds and typical replacement jobs
  • Recommended that the chain tensioner(s), sprocket(s), and guide(s) also be replaced when the chain is replaced, as these components play a vital role in system stability and accurate timing
  • CAD designed and manufactured using premium materials
  • Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
  • Refer to our online catalog for detailed application-specific information
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Felpro – CYLINDER HEAD BOLT SET (Part No.ES 72220)

CYLINDER HEAD BOLT SET

from

$46.99
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:
  • Meets or exceeds all original equipment specifications
  • Application specific design to ensure a perfect fit
  • Avoid risk associated with re-use of T-T-Y (torque to yield) head bolts
  • Validated for fit, form and function
  • Unsurpassed quality you can trust
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Melling – Stock Replacement Oil Pump Screen (Part No.358S)

Stock Replacement Oil Pump Screen

from

$57.99
A new Melling pick-up tube/oil screen assembly provides the lubrication oil as well as protection for your oil pump from materials that find their way into the engine oil supply system. Contaminates enter your oil system via engine ware, extended time between oil changes and other internal engine sources. These contaminates can interfere with the proper oil flow and pressure spring functions resulting in engine damage and/or failure. Melling suggests that a new properly installed oil pump pick-up tube/screen be a part of every oil pump installation. Several Melling oil pump applications are offered with an oil screen included.

Product Features:
  • Manufactured from high quality durable materials for long wear
  • Precision engineering protects the engine from dirt and contaminants
  • Designed for long-life and worry-free performance
  • Meets or exceeds original equipment specifications
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Sealed Power – Engine Piston Ring Set (Part No.E-979K 20)

Engine Piston Ring Set

from

$201.99
Sealed Power« parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.

Product Features:
  • Face of top rings coated with latest generation Plasma-Moly
  • Decreases friction
  • Very resistant to scuffing
  • Exacting tolerances
  • Meets or exceeds OEM specifications
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ACDelco – Timing Chain Tension (Part No.A5110355346ACD)

Timing Chain Tension

from

$66.10
The ACDelco GM Original Equipment Engine Timing Chain Tensioner is a GM-recommended replacement for your vehicle’s original component. It keeps the engine timing chain at the proper tension for a long and trouble-free life. This original equipment engine timing chain tensioner has been manufactured to fit your specific GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

Product Features:
  • Maintains the proper tension in the engine timing chain in your vehicle for proper performance
  • Designed to GM OE specifications to optimize component life and prevent noise
  • Validated to perform with critical engine management sensors, such as cam position sensors, to ensure that new parts will not turn on the Check Engine light in your vehicle
  • Designs are enhanced and amended to incorporate updates, upgrades, and Technical Service Bulletins
  • 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 – Crankshaft Sensor (Part No.CSC1075)

Crankshaft Sensor

from

$33.99
A leader in vehicle electronic solutions, each premium product meets or exceeds OE specifications in appearance, fit, and function, ensuring easy installation and excellent performance. The product has been tested under extreme environments, including the

Product Features:
  • Reliable circuit board and product structure design, 3D proofing, and field test verification to ensure correct signal output at all speeds.
  • Manufactured in an anti-static environment to ensure reliability and stability.
  • Extreme temperature and salt spray tests simulate real-world vehicle conditions to ensure durability and reliability.
  • Providing this premium product line, we meet the service professionals needs with the highest quality product every time the part comes out of the box.
See More

MAHLE Original – Cylinder Head Gasket (Part No.54442)

Cylinder Head Gasket

from

$69.99
MAHLE gaskets provide world class sealing products trusted by OEMs & Technicians around the globe.

Product Features:
  • All MAHLE gaskets meet or exceed the original equipment specifications providing the finest sealing products available
  • MAHLE gaskets utilizes OE equivalent or better materials in all our gaskets
  • Cylinder head gaskets are sold individually and may require new head bolts based on application.
  • The contents of MAHLE gaskets are packaged in shrink wrapped tray, giving you the added security of knowing that you have the right parts, prior to opening the package
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Dorman – Engine Oil Pan: Direct Fit, Aluminum, Center Sump, 5 Quart (Part No.264-136)

Engine Oil Pan: Direct Fit, Aluminum, Center Sump, 5 Quart

from

$344.99
Oil pan leaking? This engine oil pan is precision-engineered to match the original equipment pan on specific vehicle years, makes and models for a reliable replacement.

Product Features:
  • Direct replacement – this engine oil pan is made to match the original pan on specific vehicles
  • Complete assembly – includes replacement pan and drain plugs to match original components
  • Durable design – high-strength coating prevents future corrosion
  • Trustworthy value – backed by team of engineers and quality control experts in the United States
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PowerBond – Harmonic Balancer (Part No.PBU1190SS25)

Harmonic Balancer

from

$284.99
PowerBond by DAYCO Race Performance Balancers are designed with a unique combination of material and castings providing the maximum strength and durability of bonded dampening rubber. Each balancer is dynamically balanced for a smooth operation. Modifying the balancer diameter can alter the performance of the accessories and engine rev speeds that can increase the vehicle’s horsepower output. These modifications can also help reduce power loss caused by front drive accessories and prevent over-revving alternators. Note: This modified balancer changes the geometry of the original belt drive. Dayco recommends this balancer to be serviced by a professional installer.

Product Features:
  • Designed especially for high revving and high horsepower street and race applications
  • Easy to read computer etched timing marks
  • CNC machined AISI 1045 forged steel hub bonded to an equally strong steel inertia ring
  • Steel inertia ring protects against forward and backward movement
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National – Multi Purpose Seal (Part No.710551)

Multi Purpose Seal

from

$22.99
National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:
  • Low swell in hydrocarbon fluids
  • Design type: spring loaded; multi-lip
  • Provides good low temperature capability
  • Temperature range: -40°F to 225°F; -40°C to 107°C
  • Delivers quality and reliable performance for every type of repair
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Felpro – O-RING (Part No.73193)

O-RING

from

$4.49
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:
  • Meets or exceeds all original equipment specifications
  • 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
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Driveworks – Crankshaft Seal (Part No.S-100085)

Crankshaft Seal

from

$29.99
Product Features:
  • Brand may vary by location
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Cloyes Gear – Engine Timing Chain Kit (Part No.9-0195SX)

Engine Timing Chain Kit

from

$155.99
Timing Chain Kits includes all components for a quick and efficient replacement

Product Features:
  • Meet or exceed OEM performance requirements, ensuring a quiet and maintenance-free experience
  • Utilizes the latest in design and technology to offer a complete chain kit solution
  • Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
  • CAD designed and manufactured using premium materials
  • Refer to our online catalog for detailed application-specific information
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Cloyes Gear – Primary Timing Chain Kit: Exact Fit, 60 Links, Timing Components, With Sprockets (Part No.9-4205S)

Primary Timing Chain Kit: Exact Fit, 60 Links, Timing Components, With Sprockets

from

$74.99
Designed for the replacement of worn or damaged timing chains, tensioners, and guides, Timing Chain Kits includes all components for a quick and efficient replacement. Each part is CAD designed and manufactured using premium materials. Recommended that the chain tensioner(s), sprocket(s), and guide(s) also be replaced when the chain is replaced, as these components play a vital role in system stability and accurate timing.

Product Features:
  • Meet or exceed OEM performance requirements, ensuring a quiet and maintenance free experience
  • Utilizes the latest in design and technology to offer a complete chain kit solution
  • Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
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2003 Chevrolet Trailblazer Engine Parts

You count on your 2003 Chevrolet Trailblazer 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 Engine Parts. With 82 Engine Parts ranging in price from $2.99 to $3,479.99, you’re sure to find everything you need for your 2003 Chevrolet Trailblazer.

Brands matter. If you want to shop a specific Engine Parts brand, we stock 19 different brands like Carquest Premium, Felpro, and Carquest. 2003 Chevrolet Trailblazer Engine Parts start as low as $2.99!

One of the best ways to find top quality OEM or aftermarket Engine Parts is by asking professionals. Short of that, you can shop with confidence thanks to our 192 extensive product reviews on 2003 Chevrolet Trailblazer Engine Parts. Some of the top-rated Engine Parts products we carry are Multi Purpose Seal with 4.5 stars and Engine Variable Valve Timing (VVT) Solenoid with 3.7 stars.

Did we mention you can order your Engine Parts 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 Engine Parts inventory for your 2003 Chevrolet Trailblazer below to get started!

Top-Rated Engine Parts Brands For Your 2003 Chevrolet Trailblazer

Trusted Engine Parts OEM and aftermarket product brands are what Advance Auto Parts specializes in. The brands we work with are sure to keep that 2003 Chevrolet Trailblazer running right for years to come. In our inventory you’ll find brands like Carquest Premium, Felpro, Carquest, and even more.

Popular Anchor Engine Parts

You’ll find popular Anchor brand products across Engine Mounts. All are waiting to get your 2003 Chevrolet Trailblazer back on the road. Some of the top-rated Anchor products in these categories are:
Engine Mount: Front Left, Front Right, 1 Piece
from $62.99
(1)
Engine Mount: Front Left, Front Right, 1 Piece
Engine Mounts

Top-Rated Dorman Engine Parts


If Dorman are what you’re looking for, our inventory holds plenty. We stock Dorman brand Engine Parts for your 2003 Chevrolet Trailblazer, and some of our most reviewed Dorman parts include:
Variable Valve Timing Solenoid
from $63.99
(26)
Variable Valve Timing Solenoid
Engine Variable Timing Solenoids
Harmonic Balancer Assembly
from $118.99
(1)
Harmonic Balancer Assembly
Harmonic Balancers
Engine Bearing Bolt Set
from $43.99
(1)
Engine Bearing Bolt Set
Crankshaft Bolts

FAQs for 2003 Chevrolet Trailblazer Engine Parts

What are the most purchased Engine Parts for the 2003 Chevrolet Trailblazer?

Out of 82 Engine Parts for the 2003 Chevrolet Trailblazer, the most popular in our inventory are:
Fuel Injector O-Ring Kit
from $8.99
(14)
Fuel Injector O-Ring Kit
O-Rings
Camshaft Sensor
from $47.99
This product is not rated
Camshaft Sensor
Camshaft Position Sensors

What are the top-rated 2003 Chevrolet Trailblazer Engine Parts?

Top-rated Engine Parts for your 2003 Chevrolet Trailblazer based on customer reviews/ratings are:
Multi Purpose Seal
from $17.49
(8)
Multi Purpose Seal
“Exact part. No problems.”
Engine Variable Valve Timing (VVT) Solenoid
from $64.05
(6)
Engine Variable Valve Timing (VVT) Solenoid
“worked perfectly for the repair. Easy installation and replaces the clamp if need be”
Engine Valve Cover Gasket Set
from $31.49
(5)
Engine Valve Cover Gasket Set
“As expected/described. Online ordering is a real time saver.”