2003 Peterbilt 378 Auxiliary Drive Belts & Serpentine Belts
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Gates®FleetRunner™ Heavy Duty V-BeltPeterbilt 378 L6 10.3L / 12.0L with A/C 2003, FleetRunner™ Heavy Duty V-Belt by Gates®. Length: 46". Gates is the largest global manufacturer of OE timing belts. This means Gates is able to cover the Aftermarket with timing belts that...The finest quality at a great priceGates carries everything needed to complete the job$24.40 - Gates®Micro-V™ V-Ribbed BeltPeterbilt 378 L6 10.3L / 12.0L 2003, Micro-V™ V-Ribbed Belt by Gates®. Length: 74.66". Gates is the largest global manufacturer of OE timing belts. This means Gates is able to cover the Aftermarket with timing belts that are...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$39.19
- Gates®Automotive XL™ V-BeltPeterbilt 378 L6 10.3L / 12.0L with A/C 2003, Automotive XL™ V-Belt by Gates®. Length: 46". This product is made of high-quality components to meet and exceed strict quality requirements. Designed using state-of-the-art technology and...Made with precision and quality in mindDesigned to meet your specific needs$19.89
- Continental® ContiTech™Conti-V Multirib™ Serpentine BeltPeterbilt 378 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$17.04 - $52.89
- Continental® ContiTech™Extreme Duty Multi V-BeltPeterbilt 378 2003, Extreme Duty Multi V-Belt by Continental® ContiTech™. 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...Made with precision and quality in mindDesigned to meet your specific needs$38.06 - $57.83
- Continental® ContiTech™Serpentine BeltPeterbilt 378 10.3L 2003, Serpentine Belt by Continental® ContiTech™. 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$32.09 - $42.38
- Continental® ContiTech™V-Groove Serpentine BeltPeterbilt 378 10.3L / 12.0L 2003, V-Groove Serpentine Belt by Continental® ContiTech™. Length: 46". This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of...Made with precision and quality in mindDesigned to meet your specific needs$17.98
- Dayco®GOLD Label™ Poly Rib Heavy Duty BeltPeterbilt 378 10.3L 2003, GOLD Label™ Poly Rib Heavy Duty Belt by Dayco®. The Dayco Gold Label™ serpentine belt is a diesel grade belt that features higher performance construction over conventional light duty belts in order to meet...The belt’s heavy-duty construction provides additional integrity without sacrificing flexibilityEngineered with high-grade EPDM compounds$48.07 - $61.40
- Dayco®Top Cog™ GOLD Label™ V-BeltPeterbilt 378 10.3L with A/C 2003, Top Cog™ GOLD Label™ V-Belt by Dayco®. Length: 46". Built with cogs in its top, the belt provides additional flexibility around small pulleys while the increased surface area results in a cooler...Constructed to deliver extended life in demanding diesel applicationsCogs in the top of the belt for increased flexibility around small pulleys$17.02
- ACDelco®Professional™ Standard High Capacity V-BeltPeterbilt 378 L6 10.3L / 12.0L with A/C 2003, Professional™ Standard High Capacity V-Belt by ACDelco®. Length: 46". Designed utilizing the latest technology, this product by ACDelco features premium quality and will perform better...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$37.74Save: $6.39 (17%)$31.35
- ACDelco®Professional™ Standard V-Ribbed Serpentine BeltPeterbilt 378 L6 10.3L / 12.0L 2003, Professional™ Standard V-Ribbed Serpentine Belt by ACDelco®. Length: 74.1". Made of EPDM rubber for long life and quiet, dependable performance, ACDelco Professional Automotive Belts are designed...Made with precision and quality in mindDesigned to meet your specific needs$107.21Save: $13.04 (12%)$94.17
- Goodyear Belts®Serpentine Multi V-BeltPeterbilt 378 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 efficiency...Meets or Exceeds OEM SpecificationsLong-life EPDM Rubber Compound$19.58 - $47.35
- ACDelco®Specialty™ Heavy Duty V-Ribbed Serpentine BeltPeterbilt 378 L6 10.3L / 12.0L 2003, Specialty™ Heavy Duty V-Ribbed Serpentine Belt by ACDelco®. Length: 74.1". Designed utilizing the latest technology, this product by ACDelco features premium quality and will perform better than...Made with precision and quality in mindDesigned to meet your specific needs$84.44Save: $12.67 (15%)$71.77
- Dayco®Drive Rite™ V-BeltPeterbilt 378 10.3L with A/C 2003, Drive Rite™ V-Belt by Dayco®. Specially formulated high temperature Polymer along with the highest level of engineered reinforcement proves to perform better in belt operating temperature and...Faster and more consistent throttle response at high speedsQuicker throttle response at mid-speed acceleration$8.10
- Dayco®Drive Rite™ V-Ribbed Serpentine BeltPeterbilt 378 L6 10.3L / 12.0L 2003, Drive Rite™ V-Ribbed Serpentine Belt by Dayco®. Specially constructed for vehicles that utilize the multiple-belt system, this product features raw-edge construction along with a patented top...More flexibility and increased airflow around the belt for prolonged service lifeRaw-edge sidewall construction along with a patented top cogged design for top performance$28.74 - $28.76
- ACDelco®Specialty™ Fleetrunner Heavy Duty V-Ribbed Serpentine BeltSpecialty™ Fleetrunner Heavy Duty V-Ribbed Serpentine Belt by ACDelco®. Limited Lifetime as long as original purchaser owns vehicle. This top-grade product is expertly made in compliance with stringent industry standards to offer a...High quality at an affordable priceExpertly made from premium materials$78.47Save: $11.77 (15%)$66.70
- ACDelco®Specialty™ Heavy Duty High Capacity V-BeltPeterbilt 378 L6 10.3L / 12.0L with A/C 2003, Specialty™ Heavy Duty High Capacity V-Belt by ACDelco®. Length: 46". Designed utilizing the latest technology, this product by ACDelco features premium quality and will perform better than...Made with precision and quality in mindDesigned to meet your specific needs$22.44Save: $3.37 (15%)$19.07
- Goodyear Belts®A/C Accessory Drive V-BeltPeterbilt 378 10.3L 2003, A/C Accessory Drive V-Belt by Goodyear Belts®. Length: 46.3". Goodyear Belts has developed V-belts that meet or exceed OE requirements, ensuring long belt life and quiet operation. Restore your belt drive...Meets or Exceeds OEM SpecificationsLong-life EPDM Rubber Compound$15.04
- Goodyear Belts®Serpentine KitPeterbilt 378 2003, Serpentine Kit 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 efficiency by...Meets or Exceeds OEM SpecificationsLong-life EPDM Rubber Compound$220.05
