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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Dorman®OE Solutions™ Variable Valve Timing SolenoidChevy Trailblazer / Trailblazer EXT 2003, OE Solutions™ Variable Valve Timing Solenoid by Dorman®. This replacement engine variable valve timing solenoid is precision-engineered to match or exceed the stock VVT on specific vehicle...Ideal replacement - this VVT is professionally engineered to match the function and performance of the stock solenoid on specific vehicle applicationsComplete assembly - includes all original hardware and seals required for a quick and thorough replacement$27.45 - ACDelco®Professional™ Drive Belt Idler PulleyChevy Trailblazer EXT 5.3L 2003, Professional™ Drive Belt Idler Pulley by ACDelco®. The ACDelco Professional, premium aftermarket Idler Pulley is designed for use on automobiles and light duty trucks as a locked center tensioning...Bearing is designed for application specific speed and load requirementsProvides reliable operation under severe conditions for year round performance$27.81Save: $4.50 (16%)$23.31
- ACDelco®Professional™ Idler PulleyChevy Trailblazer 2003, Professional™ Idler Pulley by ACDelco®. The ACDelco Professional, premium aftermarket Idler Pulley is designed for use on automobiles and light duty trucks as a locked center tensioning pulley, an automatic...Bearing is designed for application specific speed and load requirementsProvides reliable operation under severe conditions for year round performance$24.08 - $40.98Save: up to 17%$19.96 - $34.35
- Dorman®OE Solutions™ Driver Side Valve Cover KitChevy Trailblazer EXT 5.3L 2003, OE Solutions™ Driver Side Valve Cover Kit by Dorman®. With Gasket & Bolts. Save time and money with the Dorman Engine Valve Cover. The engine valve cover is designed to protect the cylinder head, and...Direct replacement - this valve cover matches the original equipment part for fit and functionDurable construction - this valve cover is made of quality materials to withstand extreme temperatures to resist leaking$98.32
- Dorman®OE Solutions™ Passenger Side Valve CoverChevy Trailblazer EXT 5.3L 2003, OE Solutions™ Passenger Side Valve Cover by Dorman®. Save time and money with the Dorman Engine Valve Cover. The engine valve cover is designed to protect the cylinder head, and its components, along...Direct replacement - this valve cover matches the original equipment part for fit and functionDurable construction - this valve cover is made of quality materials to withstand extreme temperatures to resist leaking$66.00
- ACDelco®Professional™ Drive Belt Tensioner AssemblyChevy Trailblazer 2003, Professional™ Drive Belt Tensioner Assembly by ACDelco®. Designed utilizing the latest technology, this product by ACDelco features premium quality and will perform better than advertised. Perfect for your...Right for your vehicle and lifestyleMade from high-quality materials for ultimate durability$46.25 - $58.99Save: up to 17%$38.61 - $50.08
- Mahle®Cylinder Head GasketChevy Trailblazer 2003, Cylinder Head Gasket by Mahle®. 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$50.39 - $223.53
- ACDelco®GM Original Equipment™ Crankshaft Position SensorChevy Trailblazer 2003, GM Original Equipment™ Crankshaft Position Sensor by ACDelco®. Designed utilizing the latest technology, this product by ACDelco features premium quality and will perform better than advertised. Perfect for...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$50.13 - $76.13Save: 15%$42.62 - $64.79
- 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®Genuine GM Parts™ Camshaft BearingChevy Trailblazer EXT 5.3L 2003, Genuine GM Parts™ Camshaft Bearing 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$37.68Save: 16%$31.83
- Gates®Micro-V™ V-Ribbed BeltChevy Trailblazer 2003, Micro-V™ V-Ribbed Belt by Gates®. Gates is the largest global manufacturer of OE timing belts. This means Gates is able to cover the Aftermarket with timing belts that are OE-equivalent, or better, in service...Special belt construction eliminates belt noise, reduces tension loss, and solves problem drive applicationsUtilizes advanced materials like Aramid Fiber found in bullet-proof vests and crack and heat-resistant EPDM materials$18.11 - $38.07
- Westar®Front Engine MountChevy Trailblazer / Trailblazer EXT 4.2L 2003, Front Engine Mount by Westar®. Westar's OE replacement motor mounts effectively control engine movement for vibration-free driving. Since 1986, Westar has specialized in distributing...Build with quality that matches or exceeds OEM SpecificationsPerfect fit$13.95 - $29.36
- TRQ®Engine Variable Timing SolenoidChevy Trailblazer / Trailblazer EXT 4.2L 2003, Engine Variable Timing Solenoid by TRQ®. This engine variable timing solenoid is the right choice for those who want to keep their vehicle in excellent condition. Built with the latest...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$35.95Save: $1.80 (5%)$34.15
- Dorman®Autograde™ Engine Oil Drain PlugChevy Trailblazer 2003, Autograde™ Engine Oil Drain Plug by Dorman®. Dorman's Oil Drain Plugs are coated for high corrosion resistance and a long service life. Designed to provide a perfect fit for a hassle free installation, this...Oil Drain Plugs are designed and constructed to strict engineering quality standardsThe finest quality at a great price$2.05 - $21.42
- Spectra Premium®Crankshaft Position SensorChevy Trailblazer 2003, Crankshaft 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 reliability....Compliant with the strictest standards for qualityExpertly crafted using the up-to-date technology$10.52
- Walker Products®Camshaft Position SensorChevy Trailblazer 2003, Camshaft Position Sensor 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 will meet...High quality at an affordable priceExpertly made from premium materials$23.85 - $39.00
- Goodyear Belts®Serpentine Multi V-BeltChevy Trailblazer 2003, Serpentine Multi V-Belt by Goodyear Belts®. Goodyear Belts has developed multi V-belts that meet or exceed OE requirements, ensuring long belt life and quiet operation. Restore your belt drive system’s...Meets or Exceeds OEM SpecificationsLong-life EPDM Rubber Compound$13.30 - $33.47
- Dorman®OE Solutions™ Aluminum Timing Chain CoverChevy Trailblazer 2003, OE Solutions™ Aluminum Timing Chain Cover by Dorman®. This direct replacement timing cover matches the fit and function of the original equipment cover for a reliable repair. This part has undergone extensive...Direct replacement - this engine timing cover matches the fit and function of the original equipment coverDurable construction - this part is specifically designed to withstand extreme underhood temperatures for a long service life$84.64 - $147.75
- Delphi®Camshaft Position SensorChevy Trailblazer 2003, Camshaft 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 coverageApplications for ignition (camshaft and crankshaft position and speed), transmission (vehicle or engine speed) and anti-lock braking systems (wheel speed)$28.55 - $36.42
- Gates®Accessory Belt Drive KitChevy Trailblazer 2003, Accessory Belt Drive Kit by Gates®. Gates is the largest global manufacturer of OE timing belts. This means Gates is able to cover the Aftermarket with timing belts that are OE-equivalent, or better, in service...Performing a complete system repair doesn't add much time, but adds a lot of value (and protects against returns)Without proper tension, even the best new belt can’t efficiently transfer power$85.87 - $103.71
- Mahle®Molded Rubber Engine Oil Pan GasketChevy Trailblazer EXT 5.3L with Chevy Small Block Generation III/IV LS-Based Engine 2003, Molded Rubber Engine Oil Pan Gasket by Mahle®. Designed utilizing the latest technology, this product by Mahle features premium quality and will...Made with precision and quality in mindDesigned to meet your specific needs$38.13
- TRQ®Oil Pressure SensorChevy Trailblazer EXT 5.3L 2003, Oil Pressure Sensor by TRQ®. If your vehicle has symptoms of a bad cylinder head, replace it with a cost-efficient solution by TRQ. Built to optimize your driving experience, this product is manufactured...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$40.95Save: $2.05 (5%)$38.90
- Continental® ContiTech™Conti-V Multirib™ Serpentine BeltChevy Trailblazer 2003, Conti-V Multirib™ Serpentine Belt by Continental® ContiTech™. Designed to transmit torque and drive engine accessories, this serpentine belt provides quieter and cooler performance, greater durability, and...OE quality product for safe, reliable, and efficient performanceProvides quiet performance, even in wet conditions$14.80 - $29.38
- Bando®Rib Ace™ V-Ribbed Serpentine BeltChevy Trailblazer 2003, Rib Ace™ V-Ribbed Serpentine Belt by Bando®. Trusted by the world's Top Automakers, Bando is OE on Domestic and Import nameplates. The V-ribbed belt is precision engineered for long life under severe operating...Combines our OE technology and experience to offer an accessory drive belt that outperforms the competitionExtensive coverage for Domestic and Import applications$6.87 - $19.20
- 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
- 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
- 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 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
- Mahle®Timing Cover Gasket SetChevy Trailblazer 2003, Timing Cover Gasket Set by Mahle®. 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$18.63 - $44.61
- 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
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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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