1981 Mack WS 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
- Engine Sensors, Relays, Switches
- Oil Pumps
- Oil Coolers
- Crankshafts
- Engine Bearings
- Engine Rebuild Kits
- Motor Oils
- Baldwin Filters®Engine Oil FilterMack WS700LST 14.0L 1981, 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$25.93 - $46.45
- PAI®Engine Gasket KitMack WS700LST 1981, 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 - $346.57
- PAI®Engine Piston KitMack WS700LST E6 Engine 1981, Engine Piston 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...Perfect blend of leading innovations and superior workmanshipManufactured to offer high value and everlasting reliability$127.97
- PAI®Engine Oil DipstickMack WS700LST 14.0L 1981, 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...Perfect blend of leading innovations and superior workmanshipManufactured to offer high value and everlasting reliability$29.59
- Gates®FleetRunner™ Heavy Duty V-BeltMack WS 1981, 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 better, in service...The finest quality at a great priceGates carries everything needed to complete the job$20.29 - $30.03
- PAI®Crankshaft SealMack WS 1981, Crankshaft 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 craftsmanship. Manufactured from...Perfect blend of leading innovations and superior workmanshipManufactured to offer high value and everlasting reliability$13.50 - $95.21
- PAI®Crankshaft SealMack WS 1981, Crankshaft 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 craftsmanship. Manufactured from...Perfect blend of leading innovations and superior workmanshipManufactured to offer high value and everlasting reliability$13.50 - $95.21
- Gates®Automotive XL™ V-BeltMack WS 1981, 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 will meet your...Made with precision and quality in mindDesigned to meet your specific needs$15.67 - $24.20
- Continental® ContiTech™Accessory Drive BeltMack WS 1981, Accessory Drive Belt by Continental® ContiTech™. This belt is designed with teeth molded directly into its surface to avoid slipping for reliable and efficient performance. Manufactured using the latest material...OE quality product for safe, reliable, and efficient performanceManufactured using the latest material technology$18.90 - $21.94
- Continental® ContiTech™Conti-V Multirib™ Serpentine BeltMack WS700LST 14.0L 1981, Conti-V Multirib™ Serpentine Belt by Continental® ContiTech™. Length: 43.5". Designed to transmit torque and drive engine accessories, this serpentine belt provides quieter and cooler performance, greater...OE quality product for safe, reliable, and efficient performanceProvides quiet performance, even in wet conditions$20.18
- Continental® ContiTech™V-Groove Serpentine BeltMack WS 1981, V-Groove 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$17.09 - $20.48
- Dayco®Drive Rite™ V-BeltMack WS 1981, 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 efficiency than leading...Faster and more consistent throttle response at high speedsQuicker throttle response at mid-speed acceleration$1.61 - $8.97
- Dayco®Drive Rite™ V-Ribbed Serpentine BeltMack WS700LST 14.0L 1981, 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 cogged design,...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$14.42
- Dayco®Poly Rib™ Serpentine BeltMack WS700LST 14.0L 1981, Poly Rib™ Serpentine Belt by Dayco®. Length: 43.6". 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$23.16
- Dayco®Top Cog™ GOLD Label™ V-BeltMack WS 1981, 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 service...Constructed to deliver extended life in demanding diesel applicationsCogs in the top of the belt for increased flexibility around small pulleys$16.68 - $29.16
- ACDelco®Professional™ Standard High Capacity V-BeltMack WS 1981, Professional™ Standard 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 vehicle and...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$25.77 - $41.97Save: up to 16%$21.90 - $35.51
- Goodyear Belts®Accessory Drive V-BeltMack WS 1981, 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 installing...Meets or Exceeds OEM SpecificationsLong-life EPDM Rubber Compound$13.15 - $24.47
- PAI®Engine Oil PanMack WS700LST 14.0L 1981, 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 - $572.66
- PAI®Engine Oil PumpMack WS700LST 14.0L 1981, 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$716.66 - $780.86
- PAI®Accessory DriveMack WS700LST Cummins Engine 1981, 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...Large ShaftCast Iron Housing$504.27
- PAI®Connecting Rod BearingMack WS700LST E6 Engine 1981, Connecting Rod 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....Perfect blend of leading innovations and superior workmanshipManufactured to offer high value and everlasting reliability$18.17
- PAI®Connecting Rod Bearing SetMack WS700LST 14.0L 1981, 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®High Performance™ Crankshaft Main Bearing KitMack WS700LST 14.0L 1981, 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
- PAI®Liner KitMack WS700LST Cummins Engine 1981, 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...Standard1 Year Warranty$73.60
- Dura-Bond®Camshaft Bearing SetMack WS700LST 1981, 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 - $82.74
- PAI®Oil Drain Tube GasketMack WS700LST E6 Engine 1981, 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®Engine Oil Pump Relief Valve SpringMack WS700LST 14.0L 1981, 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 craftsmanship....Perfect blend of leading innovations and superior workmanshipManufactured to offer high value and everlasting reliability$5.00
- PAI®Hydraulic Pump Cover GasketsMack WS700LST Cummins Engine 1981, Hydraulic Pump Cover 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$2.96
- PAI®Push RodMack WS700LST 14.0L 1981, 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$32.36
- PAI®Accessory Drive Mounting GasketsMack WS700LST Cummins Engine 1981, Accessory Drive Mounting 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...Edge Molded2 Years Warranty$12.54