1991 Western Star 4900 Engine
Select Your Submodel
- 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
- Engine Sensors, Relays, Switches
- Oil Pumps
- Oil Coolers
- Camshafts
- Crankshafts
- Engine Bearings
- Engine Rebuild Kits
- Intercoolers
- Throttle Bodies
- Motor Oils
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Baldwin Filters®Engine Oil FilterWestern Star 4900 1991, Engine Oil Filter by Baldwin Filters®. Dirty oil can cause catastrophic damage to your engine. By using the proper lube filter for your engine, you can minimize the possibility of costly downtime and repairs....Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$8.04 - $46.45 - WIX®Engine Oil FilterWestern Star 4900 1991, Engine Oil Filter by WIX®. Designed utilizing the latest technology, this product by Wix features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is...You use conventional, synthetic or synthetic-blended motor oilsYour drives are stop-and-go, either in the city or in heavy traffic$27.47 - $68.72
- PAI®Engine Gasket KitWestern Star 4900 1991, Engine Gasket Kit by PAI®. 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...Perfect blend of leading innovations and superior workmanshipManufactured to offer high value and everlasting reliability$1.52 - $529.73
- PAI®High Performance Piston Ring SetWestern Star 4900 14.6L 1991, High Performance Piston Ring Set by PAI®. 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....Perfect blend of leading innovations and superior workmanshipManufactured to offer high value and everlasting reliability$70.44
- PAI®Piston Ring KitWestern Star 4900 11.1L / 12.7L 1991, Piston Ring Kit by PAI®. 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....Perfect blend of leading innovations and superior workmanshipManufactured to offer high value and everlasting reliability$88.10
- Gates®FleetRunner™ Heavy Duty V-BeltWestern Star 4900 12.7L 1991, FleetRunner™ Heavy Duty V-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...The finest quality at a great priceGates carries everything needed to complete the job$28.62 - $30.57
- PAI®Engine Oil DipstickWestern Star 4900 1991, Engine Oil Dipstick by PAI®. 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...Perfect blend of leading innovations and superior workmanshipManufactured to offer high value and everlasting reliability$29.59 - $31.77
- Gates®FleetRunner PowerBand™ V-BeltWestern Star 4900 12.7L 1991, FleetRunner PowerBand™ V-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,...The finest quality at a great priceGates carries everything needed to complete the job$39.33 - $54.48
- PAI®Crankshaft Seal KitWestern Star 4900 1991, Crankshaft Seal Kit by PAI®. 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...Perfect blend of leading innovations and superior workmanshipManufactured to offer high value and everlasting reliability$13.50 - $90.81
- PAI®Crankshaft Seal KitWestern Star 4900 1991, Crankshaft Seal Kit by PAI®. 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...Perfect blend of leading innovations and superior workmanshipManufactured to offer high value and everlasting reliability$13.50 - $90.81
- Gates®Automotive XL™ V-BeltWestern Star 4900 12.7L 1991, Automotive XL™ V-Belt by Gates®. 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...Made with precision and quality in mindDesigned to meet your specific needs$23.27 - $24.66
- Dayco®Drive Rite™ V-BeltWestern Star 4900 11.1L / 12.7L 1991, 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$4.81 - $6.07
- Dayco®Top Cog™ GOLD Label™ V-BeltWestern Star 4900 1991, Top Cog™ GOLD Label™ V-Belt by Dayco®. Built with cogs in its top, the belt provides additional flexibility around small pulleys while the increased surface area results in a cooler running belt for prolonged...Constructed to deliver extended life in demanding diesel applicationsCogs in the top of the belt for increased flexibility around small pulleys$18.18 - $27.81
- ACDelco®Professional™ V-BeltWestern Star 4900 12.7L 1991, Professional™ V-Belt by ACDelco®. Designed utilizing the latest technology, this product by ACDelco features premium quality and will perform better than advertised. Perfect for your vehicle and...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$25.33 - $35.92
- ACDelco®Specialty™ Heavy Duty High Capacity V-BeltWestern Star 4900 12.7L 1991, Specialty™ Heavy Duty High Capacity V-Belt by ACDelco®. Designed utilizing the latest technology, this product by ACDelco features premium quality and will perform better than advertised. Perfect for your...Made with precision and quality in mindDesigned to meet your specific needs$24.83 - $42.38
- Goodyear Belts®Accessory Drive V-BeltWestern Star 4900 1991, Accessory Drive V-Belt by Goodyear Belts®. Goodyear Belts has developed 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$18.56 - $19.25
- PAI®Engine Oil PanWestern Star 4900 1991, Engine Oil Pan by PAI®. 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...Perfect blend of leading innovations and superior workmanshipManufactured to offer high value and everlasting reliability$542.72 - $632.42
- PAI®Engine Oil Pan GasketWestern Star 4900 1991, Engine Oil Pan Gasket by PAI®. 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...Perfect blend of leading innovations and superior workmanshipManufactured to offer high value and everlasting reliability$23.91 - $91.38
- Dorman HD Solutions®Engine Oil Drain PlugWestern Star 4900 1991, Engine Oil Drain Plug by Dorman HD Solutions®. This replacement engine oil drain plug is a direct replacement for a damaged or worn original equipment drain plug, precisely matching the thread pitch to ensure a...Ideal replacement - this engine oil drain plug matches the fit and function of the original drain plugDurable construction - this replacement drain plug is made of corrosion-resistant materials for reliable service$8.25 - $18.34
- PAI®Engine Oil PumpWestern Star 4900 1991, Engine Oil Pump by PAI®. 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...Perfect blend of leading innovations and superior workmanshipManufactured to offer high value and everlasting reliability$408.16 - $817.73
- PAI®Accessory DriveWestern Star 4900 1991, Accessory Drive by PAI®. Sold Individually. 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....2 Years WarrantyPerfect blend of leading innovations and superior workmanship$504.27 - $1,227.86
- PAI®Camshaft BearingWestern Star 4900 10.0L 1991, Camshaft Bearing by PAI®. 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 to...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$12.68
- PAI®Camshaft Bearing KitWestern Star 4900 1991, Camshaft Bearing Kit by PAI®. 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 to...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$14.04 - $269.59
- PAI®Connecting Rod Bearing SetWestern Star 4900 14.0L 1991, Connecting Rod Bearing Set by PAI®. 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....Perfect blend of leading innovations and superior workmanshipManufactured to offer high value and everlasting reliability$14.05
- PAI®Cylinder Head GasketWestern Star 4900 1991, Cylinder Head Gasket by PAI®. 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...Perfect blend of leading innovations and superior workmanshipManufactured to offer high value and everlasting reliability$61.89 - $537.47
- PAI®High Performance™ Connecting Rod Bearing SetWestern Star 4900 14.6L 1991, High Performance™ Connecting Rod Bearing Set by PAI®. 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...Perfect blend of leading innovations and superior workmanshipManufactured to offer high value and everlasting reliability$26.34
- PAI®High Performance™ Crankshaft Main Bearing KitWestern Star 4900 1991, High Performance™ Crankshaft Main Bearing Kit by PAI®. This product is made of high-quality components to meet and exceed strict quality requirements. Designed using state-of-the-art technology and with...Perfect blend of leading innovations and superior workmanshipManufactured to offer high value and everlasting reliability$233.98 - $374.26
- PAI®Liner KitWestern Star 4900 14.0L 1991, Liner Kit by PAI®. Sold Individually. 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....Standard1 Year Warranty$73.60
- PAI®Lower Bearing KitWestern Star 4900 11.1L / 12.7L 1991, Lower Bearing Kit by PAI®. 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....Perfect blend of leading innovations and superior workmanshipManufactured to offer high value and everlasting reliability$524.73 - $548.17
- PAI®Thrust BearingWestern Star 4900 14.6L 1991, Thrust Bearing by PAI®. 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...Perfect blend of leading innovations and superior workmanshipManufactured to offer high value and everlasting reliability$35.21
