2003 Chevy Trailblazer Engine Parts
Select Your Submodel
- Engine Assemblies
- Motor Mounts
- Engine Blocks
- Valves & Valvetrain Parts
- Pistons, Rings & Connecting Rods
- Oil Filters
- Serpentine Belts & Auxiliary Drive Belts
- Valve Covers
- Timing Gears, Chains & Covers
- Oil Pans, Drain Plugs & Dipsticks
- Cylinder Heads
- Timing Belts
- Engine Pulleys
- Engine Sensors, Relays, Switches & Connectors
- Oil Pumps
- Oil Coolers
- Camshafts
- Crankshafts
- Engine Management Systems
- Engine Bearings
- Harmonic Balancers
- Engine Rebuild Kits
- Oil Catch Cans
- Balance Shafts
- Engine Swap Kits
- Throttle Bodies
- Motor Oils
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TRQ®Drive Belt Idler PulleyChevy Trailblazer EXT 5.3L 2003, Drive Belt Idler Pulley by TRQ®. This product is made of high-quality components to meet and exceed strict quality requirements. Designed using state-of-the-art technology and with customers in mind. It...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$42.95Save: $1.72 (4%)$41.23 - ACDelco®Genuine GM Parts™ Crankshaft SprocketChevy Trailblazer 2003, Genuine GM Parts™ Crankshaft Sprocket by ACDelco®. This product is made of high-quality components to meet and exceed strict quality requirements. Designed using state-of-the-art technology and with customers...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$43.78 - $92.53Save: up to 16%$37.04 - $78.18
- ACDelco®Genuine GM Parts™ Engine Oil Pan GasketChevy Trailblazer EXT 5.3L 2003, Genuine GM Parts™ Engine Oil Pan Gasket by ACDelco®. This product is made of high-quality components to meet and exceed strict quality requirements. Designed using state-of-the-art technology and with...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$62.87Save: $9.86 (16%)$53.01
- Delphi®Crankshaft Position SensorChevy Trailblazer 2003, Crankshaft Position Sensor by Delphi®. Delphi sensors use the Hall Effect or magneto resistive (MR) principles for accurate and clean signal input to the electronic control module (ECM). The result is more design...Extensive coverageMade from high-quality materials for ultimate durability$26.96 - $63.88
- TRQ®Serpentine Belt Drive Component KitChevy Trailblazer 2003, Serpentine Belt Drive Component Kit by TRQ®. 3 Piece. TRQ auto parts are manufactured in state-of-the-art facilities, using the highest quality materials, and rigorously tested to ensure ultimate reliability and...Developed to comply with rigorous quality standardsExceptional quality at a budget-friendly price$70.95 - $79.95Save: 5%$67.40 - $75.95
- ACDelco®Genuine GM Parts™ Crankshaft SealChevy Trailblazer 2003, Genuine GM Parts™ Crankshaft Seal by ACDelco®. This product is made of high-quality components to meet and exceed strict quality requirements. Designed using state-of-the-art technology and with customers in...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$33.25 - $38.98Save: up to 16%$28.52 - $32.93
- ACDelco®GM Original Equipment™ Variable Valve Timing SolenoidChevy Trailblazer / Trailblazer EXT 2003, GM Original Equipment™ Variable Valve Timing Solenoid by ACDelco®. Designed utilizing the latest technology, this GM Original Equimpent™ Variable Timing Solenoid by ACDelco features premium...Dictates the operation of your vehicle's vital systems, which is critical to the performance of your vehicleGM-recommended replacement part for your GM vehicle's original factory component$77.33Save: $12.14 (16%)$65.19
- ACDelco®Genuine GM Parts™ Camshaft SprocketChevy Trailblazer 2003, Genuine GM Parts™ Camshaft Sprocket by ACDelco®. This product is made of high-quality components to meet and exceed strict quality requirements. Designed using state-of-the-art technology and with customers in...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$43.41 - $76.74Save: 16%$36.68 - $64.08
- Dorman®OE Solutions™ Variable Timing SprocketChevy Trailblazer / Trailblazer EXT 4.2L 2003, OE Solutions™ Variable Timing Sprocket by Dorman®. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality,...Upgraded replacement - this VVT sprocket directly replaces the original equipment on certain Ford, Lincoln and Mercury vehiclesEnhanced reliability - features stronger alloy plate and friction-reducing rotor design to prevent future failure$95.36
- Enginetech®Camshaft Bearing SetChevy Trailblazer EXT 5.3L With Small Block 3rd Generation LS Engine 2003, Camshaft Bearing Set by Enginetech®. Quality camshaft bearings get the job done. Enginetech camshaft bearings are manufactured as a "Full Round" design. Bearings...Rigorously tested to withstand years of abuseDesigned with innovative manufacturing techniques$23.29
- Enginetech®Connecting Rod Bearing SetChevy Trailblazer EXT 5.3L 2003, Connecting Rod Bearing Set by Enginetech®. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality, performance and...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$21.53
- Dorman®OE Solutions™ Rear Main Seal Cover KitChevy Trailblazer EXT 5.3L 2003, OE Solutions™ Rear Main Seal Cover Kit by Dorman®. Ensure the proper sealing of the engine with Dorman's Engine Rear Main Seal Cover. The Seal Cover is designed from high-quality materials to stop and...Comes with bolts and gaskets - everything necessary for a complete repairConstructed from aluminum for long-lasting performance$53.70
- NTK®Camshaft Position SensorChevy Trailblazer 2003, Camshaft Position Sensor by NTK®. Designed utilizing the latest technology, this product features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is...Sealed connections to prevent leaks, environmental corrosion and performance issuesDesigned to deliver trouble-free, consistent performance$26.31 - $46.68
- World Source One®Camshaft Position SensorChevy Trailblazer 2003, Camshaft Position Sensor by World Source One®. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality, performance and reliability....Made with precision and quality in mindDesigned to meet your specific needs$21.29 - $33.79
- Hayden®Engine Oil CoolerChevy Trailblazer / Trailblazer EXT 4.2L 2003, Engine Oil Cooler by Hayden®. If you need a quality engine oil cooler for your vehicle, Hayden is the right solution. Designed for heavy-duty applications, this product features a copper...Designed for heavy-duty applicationsCopper header and tube construction$159.42
- ACDelco®Professional™ Engine Control ModuleChevy Trailblazer 2003, Professional™ Engine Control Module by ACDelco®. An ACDelco Professional, premium aftermarket Remanufactured Engine Control Module is the ideal high quality replacement for your GM vehicle. It regulates various...Vital to vehicle performance because they dictate the operation of its vital systemsDesigned to deliver trouble-free, consistent performance$265.29 - $643.70Save: up to 16%$223.90 - $547.15
- Sealed Power®Connecting Rod Bearing SetChevy Trailblazer 2003, Connecting Rod Bearing Set by Sealed Power®. Sealed Power A-Series aluminum-silicon bi-metal alloy engine bearings deliver greater seizure resistance than tri-metal materials, dramatically reducing or eliminating...A-Series bi-metal aluminum alloyGreater seizure resistance than tri-metal material$3.23 - $137.28
- ACDelco®Genuine GM Parts™ Cylinder Head GasketChevy Trailblazer EXT 5.3L 2003, Genuine GM Parts™ Cylinder Head Gasket by ACDelco®. This product is made of high-quality components to meet and exceed strict quality requirements. Designed using state-of-the-art technology and with...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$59.05 - $305.46Save: 16%$49.78 - $258.09
- Genuine®Passenger Side Valve CoverChevy Trailblazer EXT 5.3L 2003, Passenger Side Valve Cover by Genuine®. With Gasket. Genuine is here to give you the ultimate in quality and reliability at a cost you can afford. Designed utilizing the latest technologies and...Made with precision and quality in mindDesigned to meet your specific needs$146.93
- Gates®DriveAlign™ Automatic Belt TensionerChevy Trailblazer 2003, DriveAlign™ Automatic Belt Tensioner by Gates®. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality, performance and...Comprehensive line includes parts to fit cars, vans, SUVs, and light trucksFull line coverage for import, domestic, and heavy-duty cars, trucks, and vehicle applications$32.79 - $42.71
- Fel-Pro®Cylinder Head Gasket SetChevy Trailblazer 2003, Cylinder Head Gasket Set by Fel-Pro®. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality, performance and reliability. Designed...Proprietary coating - nonstick anti-friction coating seals small surface scratches and imperfectionsSealing technologies - exclusive sealing innovations and technologies with proprietary materials and unique design features to ensure a superior seal for your repair$198.87 - $236.63
- Spectra Premium®New Design Engine Oil PanChevy Trailblazer 2003, New Design Engine Oil Pan by Spectra Premium®. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality, performance and reliability....Made with precision and quality in mindDesigned to meet your specific needs$64.24 - $890.57
- Gates®DriveAlign™ Drive Belt Idler PulleyChevy Trailblazer 2003, DriveAlign™ Drive Belt Idler Pulley by Gates®. Built to last by resisting dirt, salt, and other under-hood contaminants and are designed for use on passenger cars and light trucks as a locked center tensioning...High quality construction provides high durability for long lifeBearing meets or exceeds OE and is designed for application specific speed and load requirements$14.82 - $30.56
- Apex Auto®Cylinder Head Gasket SetChevy Trailblazer 2003, Cylinder Head Gasket Set by Apex Auto®. Designed utilizing the latest technology, this product by Apex Auto features premium quality and will perform better than advertised. Perfect for your vehicle and...Quick accurate delivery with excellent fill-rateExcellent inventory availability$132.72 - $160.91
- SKP®Engine MountChevy Trailblazer 2003, Engine Mount by SKP®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$18.00
- SKP®Front Driver Side Engine MountChevy Trailblazer 2003, Front Driver Side Engine Mount by SKP®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship....Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$16.66
- SKP®Front Passenger Side Engine MountChevy Trailblazer 2003, Front Passenger Side Engine Mount by SKP®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship....Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$16.66
- SKP®Timing Chain KitChevy Trailblazer EXT 5.3L 2003, Timing Chain Kit by SKP®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$23.85
- TRQ®Drive Belt TensionerChevy Trailblazer 2003, Drive Belt Tensioner by TRQ®. Want to get rid of the rattling noise coming from the timing cover area? This high-grade TRQ drive belt tensioner is exactly what you need. Built to meet or exceed the OEM...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$43.95 - $51.95Save: 4%$42.19 - $49.87
- Mitsuboshi®Accessory Drive BeltChevy Trailblazer EXT 5.3L with A/C 2003, Accessory Drive Belt by Mitsuboshi®. Do you hear chirping or squealing noise? Has the "power" disappeared from your steering? Does your engine crank slowly and are your lights dim? You may need...Made with precision and quality in mindDesigned to meet your specific needs$14.22
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2003 Chevy Trailblazer Engine Reviews
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Best Oil For Duramax
ACDelco® - dexosD™ Light Duty Diesel SAE 0W-20 Synthetic Motor Oil, 1 QuartPosted by Aleski / October 29, 20212020 Chevy Silverado 1500
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