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
- 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
- PAI®Timing Cover GasketWestern Star 4900 1991, Timing Cover 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$4.64
- Dura-Bond®Camshaft Bearing SetWestern Star 4900 1991, Camshaft Bearing Set by Dura-Bond®. 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...Made with precision and quality in mindDesigned to meet your specific needs$43.11 - $90.64
- MotoRad®Oil Filler CapWestern Star 4900 12.7L 1991, Oil Filler Cap by MotoRad®. 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 will...Made with precision and quality in mindDesigned to meet your specific needs$13.52
- PAI®Electrical Connector GasketsWestern Star 4900 14.6L 1991, Electrical Connector Gaskets by PAI®. 5 Pieces. 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...2 Years WarrantyPerfect blend of leading innovations and superior workmanship$3.54
- PAI®Engine Oil Pan BoltWestern Star 4900 11.1L / 12.7L 1991, Engine Oil Pan Bolt 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$13.82
- PAI®Engine Oil Pan IsolatorWestern Star 4900 1991, Engine Oil Pan Isolator 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$3.85 - $19.26
- PAI®Oil Drain GasketsWestern Star 4900 10.5L 1991, Oil Drain Gaskets by PAI®. 5 Pieces. 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$2.02
- PAI®Oil Drain Tube GasketWestern Star 4900 10.5L 1991, Oil Drain Tube 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....Perfect blend of leading innovations and superior workmanshipManufactured to offer high value and everlasting reliability$2.08
- PAI®Oil Feed GasketsWestern Star 4900 10.3L / 14.6L 1991, Oil Feed Gaskets by PAI®. 6 Pieces. 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...2 Years WarrantyPerfect blend of leading innovations and superior workmanship$8.73
- Dorman HD Solutions®Oil Drain Plug GasketWestern Star 4900 1991, Oil Drain Plug Gasket by Dorman HD Solutions®. These oil drain plug gaskets are designed to specific sizes and standards for reliable replacement at every oil change. Perfect for your vehicle and lifestyle, it is...Direct replacement - these engine oil drain plug gaskets are made to match the fit and performance of the original equipment componentsRestores functionality - built to restore a proper seal$12.68 - $16.39
- PAI®Oil Filter Base GasketWestern Star 4900 10.3L 1991, Oil Filter Base 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....Perfect blend of leading innovations and superior workmanshipManufactured to offer high value and everlasting reliability$22.51
- PAI®Camshaft Follower Beaded GasketsWestern Star 4900 14.0L 1991, Camshaft Follower Beaded Gaskets 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$7.79
- PAI®Push RodWestern Star 4900 1991, Push Rod 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...2 Years WarrantyPerfect blend of leading innovations and superior workmanship$27.62 - $32.36
- PAI®Rocker Cover IsolatorWestern Star 4900 11.1L / 12.7L 1991, Rocker Cover Isolator 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$7.84
- PAI®Rocker Housing GasketsWestern Star 4900 14.0L 1991, Rocker Housing Gaskets by PAI®. Designed utilizing the latest technology, this product by PAI features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is...Perfect blend of leading innovations and superior workmanshipManufactured to offer high value and everlasting reliability$27.26
- PAI®Valve Cover GasketWestern Star 4900 1991, Valve Cover Gasket by PAI®. Designed utilizing the latest technology, this product by PAI features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is...Perfect blend of leading innovations and superior workmanshipManufactured to offer high value and everlasting reliability$28.48 - $89.39
- PAI®Valve Cover GrommetWestern Star 4900 14.0L 1991, Valve Cover Grommet 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$2.84
- PAI®Valve Cover GrommetsWestern Star 4900 14.6L 1991, Valve Cover Grommets 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$6.86
- PAI®Valve Stem Seal SetWestern Star 4900 11.1L / 12.7L 1991, Valve Stem Seal 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....Intake / Exhaust2 Years Warranty$2.45
- PAI®Camshaft Plate GasketWestern Star 4900 11.1L / 12.7L 1991, Camshaft Plate Gasket by PAI®. Designed utilizing the latest technology, this product by PAI features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle,...Perfect blend of leading innovations and superior workmanshipManufactured to offer high value and everlasting reliability$8.73
- PAI®Camshaft Thrust Plate SealWestern Star 4900 11.1L / 12.7L 1991, Camshaft Thrust Plate Seal 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$9.18
- PAI®Camshaft Thrust WashersWestern Star 4900 14.0L 1991, Camshaft Thrust Washers by PAI®. 5 Pieces. 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...Thrust WasherNon-Flanged Camshaft$8.54
- PAI®Compressor SealWestern Star 4900 14.6L 1991, Compressor Seal 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...2 Years WarrantyPerfect blend of leading innovations and superior workmanship$7.30
- PAI®Connecting Rod BushingWestern Star 4900 11.1L / 12.7L 1991, Connecting Rod Bushing 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$25.13
- PAI®Cylinder Head BoltWestern Star 4900 11.1L / 12.7L 1991, Cylinder Head Bolt 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$9.33 - $166.34
- PAI®Cylinder Head Spacer ShimWestern Star 4900 14.6L 1991, Cylinder Head Spacer Shim 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$599.75
- PAI®Engine Oil Pump Relief Valve SpringWestern Star 4900 14.0L 1991, Engine Oil Pump Relief Valve Spring 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$5.00