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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Cloyes®Driver Side Nylon and Aluminum Timing Chain GuideChevy Trailblazer / Trailblazer EXT 4.2L 2003, Driver Side Nylon and Aluminum Timing Chain Guide with Shoe by Cloyes®. A timing chain guide serves as a track or guide, for the timing chain, connecting the crankshaft and camshaft....Cloyes parts are CAD designed and manufactured using premium materialsEach part is extensively tested and measured for function, fitment, and durability to ensure optimal performance$22.06 - Dayco®Poly Rib™ Serpentine BeltChevy Trailblazer 2003, Poly Rib™ Serpentine Belt by Dayco®. 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...Made with precision and quality in mindDesigned to meet your specific needs$14.70 - $37.05
- National®Crankshaft SealChevy Trailblazer 2003, Crankshaft Seal by National®. Designed utilizing the latest technology, this product by National features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is...Temperature range: -40 to 400 °F / -40 to 204 °CCompatible with wide range of fluids$11.46 - $18.49
- WVE®Oil Pressure SwitchChevy Trailblazer 2003, Oil Pressure Switch by WVE®. Replace your worn-out or faulty component with this quality replacement from WVE. This product is designed and tested to ensure the ultimate in durability and functionality. Made to...Excellent replacement for your worn-out factory partDesigned to keep your vehicle running reliably mile after mile$29.12 - $40.34
- NTK®Crankshaft Position SensorChevy Trailblazer 2003, Crankshaft 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...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$15.53 - $48.95
- Dorman®TECHoice™ Automatic Belt TensionerChevy Trailblazer 2003, TECHoice™ Automatic Belt Tensioner by Dorman®. This replacement belt tensioner assembly is designed to match the fit and function of the original equipment belt tensioner on specified vehicles. Engineered with...Ideal replacement - this drive belt tensioner is a direct replacement for the original tensioner on specified vehicle years, makes and modelsDurable construction - this tensioner assembly is made using quality components to ensure durability and performance$27.44 - $33.63
- Dorman®TECHoice™ Idler PulleyChevy Trailblazer 2003, TECHoice™ Idler Pulley by Dorman®. This replacement accessory drive belt idler pulley has been engineered to match the function and performance of the original pulley on select vehicle years, makes and models,...Direct replacement - this accessory drive belt idler pulley matches the fit and function of the original equipment pulley on specified vehiclesRestores performance - fixes a failed, squealing or groaning noise from a worn idler pulley$9.89 - $20.56
- Dorman®TECHoice™ Regular Drive Belt Idler PulleyChevy Trailblazer 2003, TECHoice™ Regular Drive Belt Idler Pulley by Dorman®. This replacement accessory drive belt idler pulley has been engineered to match the function and performance of the original pulley on select vehicle years,...Direct replacement - this accessory drive belt idler pulley matches the fit and function of the original equipment pulley on specified vehiclesRestores performance - fixes a failed, squealing or groaning noise from a worn idler pulley$20.33
- Continental® ContiTech™Accessory Drive Belt KitChevy Trailblazer 2003, Accessory Drive Belt Kit by Continental® ContiTech™. When replacing a worn out serpentine belt, it's a good practice to also replace the idlers and tensioners along with it to prevent uneven wear and the risk...OE-quality products for safe, reliable, and efficient performanceManufactured with precise tolerances and ultimate quality$89.52 - $95.89
- DNJ Engine Components®Connecting Rod Bearing SetChevy Trailblazer 2003, Connecting Rod Bearing Set by DNJ Engine Components®. If you crave for the finest replacement for your worn out parts, look no further than this superior bearing set that is built with the same quality and...Designed to provide reliable performance within your vehicle's engineMade from top-grade materials with utmost care to ensure long-lasting service$16.31 - $39.44
- Elring®Crankshaft SealChevy Trailblazer 2003, Crankshaft Seal by Elring®. 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...Expertly Crafted from the highest grade materialsMade to provide maximum accuracy and dependability$13.96 - $28.82
- Elring®Crankshaft SealChevy Trailblazer 2003, Crankshaft Seal by Elring®. 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$18.01 - $35.08
- SKP®Driver Side Valve CoverChevy Trailblazer EXT 5.3L 2003, Driver Side Valve Cover by SKP®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your...Precise engineering ensures second to none quality and lasting valueStringently tested with the highest quality standards$61.98
- Walker Products®Engine Oil Pressure SwitchChevy Trailblazer EXT 5.3L 2003, Engine Oil Pressure Switch by Walker Products®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It...High quality at an affordable priceExpertly made from premium materials$36.38
- SMP®Crankshaft Position SensorChevy Trailblazer 2003, Crankshaft Position Sensor by SMP®. 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 specifically for motorcycle applicationsPerfect to help you work more efficiently$21.03 - $62.25
- Spectra Premium®Camshaft Position SensorChevy Trailblazer EXT 5.3L 2003, Camshaft Position Sensor 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...Compliant with the strictest standards for qualityExpertly crafted using the up-to-date technology$14.89
- ACDelco®Genuine GM Parts™ Timing Cover GasketChevy Trailblazer EXT 5.3L 2003, Genuine GM Parts™ Timing Cover 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$37.73
- Gates®RPM Micro-V™ V-Ribbed BeltChevy Trailblazer EXT 4.2L 2003, RPM Micro-V™ V-Ribbed Belt by Gates®. Length: 90.873". Racing, Performance, Muscle. The only belt in the industry specifically designed for high-output and forced induction engines....Advanced, exact-fit and precision-ground belt profileTwo layers of adhesion gum for maximum strength and durability$71.23
- SKP®Drive Belt TensionerChevy Trailblazer 2003, Drive Belt Tensioner 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$21.52 - $47.44
- DNJ Engine Components®Crankshaft Main Bearing SetChevy Trailblazer EXT 5.3L 2003, Crankshaft Main Bearing Set by DNJ Engine Components®. If you crave for the finest replacement for your worn out parts, look no further than this superior bearing set that is built with the same quality...Designed to provide reliable performance within your vehicle's engineMade from top-grade materials with utmost care to ensure long-lasting service$39.97 - $43.13
- ACDelco®Genuine GM Parts™ Valve Cover Bolt SealChevy Trailblazer / Trailblazer EXT 4.2L 2003, Genuine GM Parts™ Valve Cover Bolt Seal by ACDelco®. This product is made of high-quality components to meet and exceed strict quality requirements. Designed using state-of-the-art...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$17.61
- Dorman®HELP™ Engine Oil Drain PlugChevy Trailblazer / Trailblazer EXT 2003, HELP™ Engine Oil Drain Plug by Dorman®. Dorman's Oil Drain Plugs are coated for high corrosion resistance and a long service life. Designed using state-of-the-art technology and with customers...Direct replacement for a proper fit every timeDorman's oversized, piggyback, and rubber expanding plugs eliminate the need to replace the entire pan, saving you time, labor and money$2.04
- SKP®Engine Oil PanChevy Trailblazer 2003, Engine Oil Pan 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$122.87
- SKP®Camshaft Position SensorChevy Trailblazer 2003, Camshaft Position Sensor 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$15.03 - $16.37
- Walker Products®Variable Timing SolenoidChevy Trailblazer / Trailblazer EXT 4.2L 2003, Variable Timing Solenoid by Walker Products®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in...High quality at an affordable priceExpertly made from premium materials$29.19
- NTK®Variable Valve Timing SolenoidChevy Trailblazer / Trailblazer EXT 4.2L 2003, Variable Valve Timing Solenoid by NTK®. The Engine Variable Valve Timing (VVT) Eccentric Shaft Sensor reports camshaft timing for greater torque, horsepower and engine efficiency across all...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$33.48
- Continental® ContiTech™Elite™ Drive Belt Idler AssemblyChevy Trailblazer 2003, Elite™ Drive Belt Idler Assembly by Continental® ContiTech™. Every part in this assembly is engineered to look, install, and operate the same way or better than the factory parts. Every component meets...Original equipment equivalentFactory-like fit and dependability$15.08 - $27.97
- Dayco®No Slack™ Idler/Tensioner PulleyChevy Trailblazer 2003, No Slack™ Idler/Tensioner Pulley by Dayco®. Dayco's reputation for top performance idler and tensioner pulleys is a result of advanced automotive technologies employed in materials research, design engineering,...Made with precision and quality in mindDesigned to meet your specific needs$17.24 - $44.54
- Hayden®Idler/Tensioner PulleyChevy Trailblazer 2003, Idler/Tensioner Pulley by Hayden®. This part is designed to route the drive belt and keep it tight. If the pulley goes bad, it can cause problems with cooling, charging, steering, and climate control. Replace a...Constructed to ensure OE quality and reliabilityMade of steel and thermoplastic for long service life and superior dampening$13.96 - $27.80
- DNJ Engine Components®Oil PumpChevy Trailblazer EXT 5.3L 2003, Oil Pump by DNJ Engine Components®. This supreme DNJ oil pump will come in handy if you need to replace your malfunctioning component and restore your vehicle to it's proper performance. Made from...Designed to replace your worn out factory oil pumpHelps keep your vehicle operating at it's maximum$72.36
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2003 Chevy Trailblazer Engine Reviews
1 review
Throttle Body Spacer
AIRAID® - PowerAid™ Throttle Body SpacerPosted by David (Indianapolis, IN) / July 15, 20152002 Chevy Trailblazer
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