2003 Chevrolet Trailblazer Ext Engine Parts

Essential 2003 Chevrolet Trailblazer Ext Engine Parts

GM Genuine Parts – Gen III/IV Lifter Guide (Part No.12595365)

Gen III/IV Lifter Guide

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$14.99
GM Genuine Parts Engine Valve Lifter Guide 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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Felpro – Fuel Injector O-Ring Kit (Part No.ES 71190)

Fuel Injector O-Ring Kit

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$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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Felpro – OIL COOLER GASKET MOUNTING SET (Part No.72462)

OIL COOLER GASKET MOUNTING SET

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$11.49
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
  • Application specific design to ensure a perfect fit
  • Engineered and manufactured specifically for the repair environment
  • Unsurpassed quality you can trust
  • Includes all parts needed to complete the repair
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National – Multi Purpose Seal (Part No.710605)

Multi Purpose Seal

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$17.49
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:
  • 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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Dorman – Crankshaft Seal Cove (Part No.A2160751058DOR)

Crankshaft Seal Cove

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$67.53
Crankshaft Seal Cove

Cloyes Performance – High Performance Timing Chain (Part No.9-132)

High Performance Timing Chain

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$75.99
High Performance 3/8″ Pitch Double Roller Replacement TRUE Roller Chain. 0.250″ Roller Diameter. Heat Treated and Processed Links to Maximize Ultimate Breaking Strength while Remaining Ductile for Toughness. Pre-stressed to Increase Fatigue Life.

Product Features:
  • A timing chain synchronizes the rotation of the crankshaft and camshaft(s), ensuring proper timing of the engines valve events for each cylinder
  • Our chains are engineered and manufactured with precision pitch control for proper chain-to-sprocket tooth fitment
  • From stock replacement to high performance, Cloyes has the most complete timing chain catalog
  • Cloyes parts are CAD designed and manufactured using premium materials. Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
  • Cloyes recommends 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
  • Refer to our online catalog for detailed application-specific information
  • Keep your engines valvetrain in perfect time with Cloyes, the world leader in timing drive systems
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Delphi – Engine Crankshaft Position Sensor (Part No.SS10206)

Engine Crankshaft Position Sensor

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$69.99
Designed digital output for maximum signal to noise ratio. Not impacted by temperature changes and provide robust, long-lasting sensor protection. Manufactured to meet or exceed OE requirements.

Product Features:
  • The sensors provide accurate readings from the gap between sensor contact and element due to its design
  • Manufactured to meet or exceed OE requirements
  • Enhanced sensing functionality helps reduce emissions, improve reliability and drivability
  • Not impacted by temperature changes and provide robust, long-lasting sensor protection
  • Designed digital output for maximum signal to noise ratio
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Cloyes Performance – Engine Camshaft Thrust Button (Part No.9-232)

Engine Camshaft Thrust Button

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$18.99
Replacement Captured Needle Thrust Bearing for LS Applications; Meets or exceeds OEM performance requirements; Cloyes utilizes the latest in design and material technology, ensuring quiet and maintenance-free experience.

Product Features:
  • Replacement Captured Needle Thrust Bearing for LS Applications
  • Meets or exceeds OEM performance requirements
  • Cloyes utilizes the latest in design and material technology, ensuring quiet and maintenance-free experience.
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Dorman – Engine Harmonic Balancer/Pulley Assembly (Part No.A2210682657DOR)

Engine Harmonic Balancer/Pulley Assembly

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$112.70
Durable and sleek, Dorman Harmonic Balancers feature a stress-resistant rubber bond that withstands the damaging effects of heat, salt, ozone and general wear and tear. The ductile steel construction allows for improved tensile and impact strength, safeguarding the engine and maintaining fuel efficiency year after year. Dorman Harmonic Balancers undergo detailed dimensional checks of the full assembly and critical components to ensure the strength and integrity of the part.

Product Features:
  • Includes woodruff key, bolts, and washers for a complete repair (where applicable)
  • Direct replacement to ensure proper fit
  • Ships with protective sleeve over cone and trigger to prevent damage (where applicable)
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Dorman – Harmonic Balancer Assembly (Part No.594-220)

Harmonic Balancer Assembly

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$118.99
This direct replacement harmonic balancer features a stress-resistant rubber bond to properly absorb engine vibration. Stringent standards help ensure excellent tensile and impact strength for greater durability.

Product Features:
  • Ideal replacement – this harmonic balancer assembly exactly matches the fit and function of the original harmonic balancer for a direct replacement
  • Durable construction – stringent specifications and careful construction help ensure longevity
  • Thoroughly tested – this harmonic balancer has undergone dimensional verification, material validation and functional testing
  • 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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Dorman – Oil Filler Tube (Part No.A6144703681DOR)

Oil Filler Tube

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$47.47
Oil Filler Tube

Sealed Power – Engine Connecting Rod Bearing (Part No.2555A)

Engine Connecting Rod Bearing

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$6.29
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:
  • A-Series bi-metal aluminum alloy
  • Greater seizure resistance than tri-metal material
  • Dramatically reduces or eliminates bearing wear
  • Made with silicon to provide greater surface hardness
  • Silicon particles help polish crankshaft journal to further reduce wear during operation
  • Utilizes ISO & QS certified manufacturing
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Dorman – Freeze Plug (Part No.A1030831249DOR)

Freeze Plug

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$12.32
Dorman’s Engine Expansion Plugs are available in multiple styles, including Cup Type, Pilot Seal, Reverse Taper, Concave, Quick-Seal® Rubber and Quick-Seal ® Copper. Dorman’s uniquely designed Pilot Seal Expansion Plug ensures a leak-proof fit. Dorman also offer Engine Expansion Plug Kits.

Product Features:
  • Many sizes available
  • Conveniently available in packs of different quantities
  • Constructed from high quality steel, copper, brass, or rubber
  • Dorman’s Engine Expansion Plugs are constructed to strict engineering quality standards
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Competition Cams – CAMSHAFT, GM LS 275 XFI RPM HI LIFT HYD ROLLER 1 EA (Part No.54-426-11)

CAMSHAFT, GM LS 275 XFI RPM HI LIFT HYD ROLLER 1 EA

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$533.99
Designed to take advantage of the GM LS engine’s larger camshaft journal diameter, the XFI RPM camshaft line takes Xtreme Energy technology to deliver excellent power. Without sacrificing low RPM torque, these camshafts extend the RPM potential of GM LS e

Product Features:
  • Designed with Xtreme Energy technology to provide excellent power with the LS engine’s enhanced cylinder head design and high RPM potential.
  • Takes advantage of the LS engine’s larger journal diameter, base circle and 1.7+ rocker arm ratio.
  • Provides outstanding low RPM torque with increased stability.
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National – Shaft Repair Sleeve (Part No.99189)

Shaft Repair Sleeve

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$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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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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Felpro – Gasket Kit (Part No.260-1973)

Gasket Kit

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$499.99
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 and manufactured specifically for the repair environment
  • Unsurpassed quality you can trust
  • Includes all parts needed to complete the repair
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MAHLE Original – HEAD SET (Part No.HS54442)

HEAD SET

from

$233.99
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
  • Head gasket set (HS) contains all the gaskets and seals required to remove and replace a cylinder head(s) on an engine.
  • 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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Felpro – Engine Coolant Crossover Pipe Mounting Set (Part No.ES 73027)

Engine Coolant Crossover Pipe Mounting Set

from

$19.99
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 for Unsurpassed quality you can trust
  • Validated for fit, form, and function
  • Quality that 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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Mahle – Valve Stem Seal Kit (Part No.A8069849331MAH)

Valve Stem Seal Kit

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$39.76
Valve Stem Seal Kit

BSE Original – Body Control Module (Part No.BCM13895M)

Body Control Module

from

$91.99
Blue Streak Electronics is the leader in remanufactured electronics since 1987 and a name synonymous with OE performance. Blue Streak Electronics provides the highest quality, most comprehensive line of Engine, Transmission, Body, Powertrain control modules, Mass Air Flow Sensors, Diagnostic tools and Flash Programming solutions.

Product Features:
  • BSE Remanufactured Body Control Modules are 100% tested to perform like new. OEM designs are analyzed, and design upgrades are implemented when necessary to provide improved durability over the OEM design.
  • OEM Modules are completely disassembled, cleaned, and inspected for wear & damage.
  • Worn and non-functioning components are replaced with upgraded new components to improve reliability and performance.
  • Common fail components are 100% replaced with new higher quality components.
  • All modules are 100% tested to meet or exceed OEM performance specifications.
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Sealed Power – Engine Gasket Set (Part No.260-1973)

Engine Gasket Set

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$496.99
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:
  • Each 260 gasket set includes Fel-Pro½ gaskets (# 1 brand of gaskets)
  • Provides the exact gaskets the application requires.
  • State-of-the-art manufacturing
  • Exacting tolerances
  • Meets or exceeds OEM specifications
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Carquest Premium – Camshaft Sensor (Part No.CSC1064)

Camshaft Sensor

from

$59.99
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 – Camshaft Phaser – Variable Timing Camshaft Gear (Part No.917-255)

Camshaft Phaser - Variable Timing Camshaft Gear

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$243.99
The variable valve timing sprocket is key to ensuring an engine’s performance and clean running. Replace a worn factory VVT sprocket with this quality engineered sprocket to restore lost performance. Designed to install and perform like the original.

Product Features:
  • Direct replacement – this VVT sprocket fits and performs like the original sprocket
  • Durable construction – made from durable steel and precision machined for reliable performance
  • 100% new – this variable valve timing sprocket is entirely new, not a remanufactured part
  • Quality assured – vehicle-specific application has been validation tested to ensure quality
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Mahle – Camshaft Retainer (Part No.A4355425751MAH)

Camshaft Retainer

from

$31.69
Camshaft Retainer

Victor Reinz – Engine Camshaft Retainer Plate (Part No.71-17533-00)

Engine Camshaft Retainer Plate

from

$29.99
With Victor Reinz gaskets, you can be sure you are getting sealing solutions that deliver OE quality gasket technology and engineering. That is because Victor Reinz is an original equipment supplier and the trusted choice of manufacturers the world over, offering broad coverage for foreign and domestic cars and trucks. In Victor Reinz gasket sets, you get the right combination of components needed for fast, long-lasting repairs.

Product Features:
  • Choosing Victor Reinz assures getting OE quality parts in gaskets sets that have the coverage, contents, packaging and electronic cataloging to best meet the needs of the aftermarket.
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Dorman – Help – Coolant Bypass Seals (Part No.56390)

Coolant Bypass Seals

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$9.99
This engine coolant water bypass gasket is designed to match the fit and function of the original gasket on specified vehicles, and is engineered for durability and reliable performance.

Product Features:
  • Direct replacement – this engine coolant water bypass gasket is designed to match the fit and function of the original gasket on specified vehicles
  • Restores functionality – this gasket is made to fit and fully restore functionality after the original part fails
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
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Popular 2003 Chevrolet Trailblazer Ext Engine Parts Categories

2003 Chevrolet Trailblazer Ext Engine Parts

You count on your 2003 Chevrolet Trailblazer Ext 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 248 Engine Parts ranging in price from $0.65 to $3,479.99, you’re sure to find everything you need for your 2003 Chevrolet Trailblazer Ext.

Brands matter. If you want to shop a specific Engine Parts brand, we stock 27 different brands like Felpro, Sealed Power, and Dorman. 2003 Chevrolet Trailblazer Ext Engine Parts start as low as $0.65!

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 1,836 extensive product reviews on 2003 Chevrolet Trailblazer Ext Engine Parts. Some of the top-rated Engine Parts products we carry are Multi-Purpose O-Ring with 4.9 stars and Stock Replacement OE Type Oil Pump with 4.5 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 Ext below to get started!

Top-Rated Engine Parts Brands For Your 2003 Chevrolet Trailblazer Ext

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 Ext running right for years to come. In our inventory you’ll find brands like Felpro, Sealed Power, Dorman, 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 Ext 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

FAQs for 2003 Chevrolet Trailblazer Ext Engine Parts

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

Out of 248 Engine Parts for the 2003 Chevrolet Trailblazer Ext, the most popular in our inventory are:
Engine Valve Lifter
from $12.99
(30)
Engine Valve Lifter
Engine Valve Lifters
Engine Crankshaft Seal Kit
from $41.99
(31)
Engine Crankshaft Seal Kit
Rear Main Seal Sets
Rear Main Seal Cover Kit
from $74.99
(19)
Rear Main Seal Cover Kit
Rear Main Seal Sets

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

Top-rated Engine Parts for your 2003 Chevrolet Trailblazer Ext based on customer reviews/ratings are:
Multi-Purpose O-Ring
from $5.49
(41)
Multi-Purpose O-Ring
“Fixed the low oil pressure at idle and ticking from the lifters”
Stock Replacement OE Type Oil Pump
from $121.99
(26)
Stock Replacement OE Type Oil Pump
“Great service.good job”
Variable Valve Timing Solenoid
from $63.99
(26)
Variable Valve Timing Solenoid
“easy to install”