2021 Peterbilt 337 Engine

Semi Truck Engine
Select Your Submodel
6.7L
8.9L
  • Baldwin Filters® - Upgrade Version Engine Oil Filter
    Baldwin Filters®Upgrade Version Engine Oil Filter
    0
    # mpn4743133606
    Peterbilt 337 8.9L Diesel 2021, Upgrade Version 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...
    Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
    $63.26
  • PAI® - Engine Gasket Kit
    PAI®Engine Gasket Kit
    0
    # 3097199333
    Peterbilt 337 CNG 2021, 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
    $5.97 - $190.30
  • PAI® - Crankshaft Seal Kit
    PAI®Crankshaft Seal Kit
    0
    # 5776857588
    Peterbilt 337 CNG 2021, 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
    $25.40 - $48.94
  • PAI® - Crankshaft Seal Kit
    PAI®Crankshaft Seal Kit
    0
    # 3404423456
    Peterbilt 337 CNG 2021, 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
    $25.40 - $48.94
  • Continental® ContiTech™ - Serpentine Belt
    Continental® ContiTech™Serpentine Belt
    0
    # mpn5067419240
    Peterbilt 337 6.7L 2021, 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
    $30.30
  • PAI® - Engine Oil Pan
    PAI®Engine Oil Pan
    0
    # mpn4696833547
    Peterbilt 337 CNG 2021, 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
    $55.46
  • PAI® - Engine Oil Pan Gasket
    PAI®Engine Oil Pan Gasket
    0
    # mpn4696833657
    Peterbilt 337 CNG 2021, 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
    $50.78
  • PAI® - Compressor Mounting Gasket
    PAI®Compressor Mounting Gasket
    0
    # mpn4696833617
    Peterbilt 337 CNG 2021, Compressor Mounting Gasket 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
    $12.68
  • PAI® - Oil Filter Adapter Gasket Set
    PAI®Oil Filter Adapter Gasket Set
    0
    # mpn4696834006
    Peterbilt 337 CNG 2021, Oil Filter Adapter Gasket Set Set 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
    $3.56
  • PAI® - Hydraulic Pump Cover Gaskets
    PAI®Hydraulic Pump Cover Gaskets
    0
    # mpn4696833518
    Peterbilt 337 CNG 2021, 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 craftsmanship....
    2 Years WarrantyPerfect blend of leading innovations and superior workmanship
    $2.96
  • PAI® - Push Rod Set
    PAI®Push Rod Set
    0
    # mpn4696833736
    Peterbilt 337 CNG 2021, Push Rod 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. Manufactured from...
    Intake and Exhaust Valve Pushrod2 Years Warranty
    $4.98
  • Gates® - Ring Retained Turbocharger Hose
    Gates®Ring Retained Turbocharger Hose
    0
    # mpn126083528
    Peterbilt 337 2021, Ring Retained Turbocharger Hose by Gates®. Specially compounded for use as a short, flexible connector between the air intake and the turbocharger. Can also be used for turbocharger air discharge.
    Resists high temperatures and pressuresResists coolants, weathering and ozone
    $62.94
  • Genuine® - Motor Oil
    Genuine®Motor Oil
    0
    # 4663517692
    Motor Oil, by Genuine®. Is your vehicle feeling down on power? Do you see dark puddles on the ground when you park? Is your CHECK ENGINE light on? Your engine may be in need of repair, but before you waste your time and gas running out...
    $9.52 - $18.85
  • Motorcraft® - SAE 5W-20 Full Synthetic High Mileage Motor Oil, 1 Quart
    Motorcraft®SAE 5W-20 Full Synthetic High Mileage Motor Oil, 1 Quart
    0
    # mpn4872354548
    SAE 5W-20 Full Synthetic High Mileage Motor Oil, 1 Quart by Motorcraft®. 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...
    $5.62
  • ACDelco® - Specialty™ Fleetrunner Heavy Duty V-Ribbed Serpentine Belt
    ACDelco®Specialty™ Fleetrunner Heavy Duty V-Ribbed Serpentine Belt
    0
    # mpn2653919731
    Specialty™ 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
    $66.79
  • Continental® ContiTech™ - Elite™ Drive Belt Tensioner Assembly
    Continental® ContiTech™Elite™ Drive Belt Tensioner Assembly
    0
    # mpn5048128728
    Peterbilt 337 6.7L 2021, Elite™ Drive Belt Tensioner Assembly by Continental® ContiTech™. This belt tensioner assembly is constructed to meet OE requirements for fit, form, and function. It provides smooth, noiseless, and...
    Constructed to match OE form, fit, and functionMaintains its correct alignment to the belt and correct accessory belt tension
    $100.68
  • ID Select® - Engine Oil Cooler
    ID Select®Engine Oil Cooler
    0
    # mpn4792680474
    Peterbilt 337 CNG 2021, Engine Oil Cooler by ID Select®. Swap out your worn-out or malfunctioning part with this top-notch product from iD Select. It’s built to OEM specifications to offer the same fit, form, and function as your...
    Direct OEM replacement for your malfunctioning partMade to deliver the ultimate in quality, reliability, and value
    $157.50
  • Maxima Racing Oils® - Performance Break-In™ SAE 5W-16 Break-In 2X Zinc Motor Oil, 5 Gallons
    Maxima Racing Oils®Performance Break-In™ SAE 5W-16 Break-In 2X Zinc Motor Oil, 5 Gallons
    0
    # mpn4786539536
    Performance Break-In™ SAE 5W-16 Break-In 2X Zinc Motor Oil, 5 Gallons x 1 Pail by Maxima Racing Oils®. Mineral based engine oil specifically formulated for breaking in engines with flat tappet camshafts, roller elements and where...
    $176.27
  • Goodyear Belts® - Drive Belt Tensioner
    Goodyear Belts®Drive Belt Tensioner
    0
    # mpn4888938725
    Peterbilt 337 8.9L 2021, Drive Belt Tensioner by Goodyear Belts®. 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
    $80.98
  • Driven Racing Oil® - Synthetic High Performance Supercharger Oil, 8 oz
    Driven Racing Oil®Synthetic High Performance Supercharger Oil, 8 oz
    0
    # mpn4872354510
    Synthetic High Performance Supercharger Oil, 8 oz by Driven Racing Oil®. 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...
    Made to provide the perfect lubricant solution for your needsDesigned with innovative manufacturing techniques
    $28.12
  • Kendall® - Motor Oil
    Kendall®Motor Oil
    0
    # 4300955017
    Motor Oil, 1 Quart by Kendall®. Kendall GT-1 Competition Motor Oil, Nitro 70, is a high-quality automotive engine oil specially formulated for use in nitromethane- and alcohol-fueled drag racing vehicles. It is not recommended for use...
    $5.47 - $6.32
  • Red Line® - 5WT SAE 0W-5 Full Synthetic Racing Motor Oil, 1 Gallon
    Red Line®5WT SAE 0W-5 Full Synthetic Racing Motor Oil, 1 Gallon
    0
    # mpn4900907999
    5WT SAE 0W-5 Full Synthetic Racing Motor Oil, 1 Gallon by Red Line®. Racing oils provide more wear protection than motor oils for passenger vehicles, however, these products contain fewer detergents and are not suitable for street use.
    Racing oils provide more wear protection than motor oils for passenger vehicles, however, these products contain fewer detergents and are not suitable for street useReformulated for improved frictional properties
    $79.85
  • Red Line® - 60WT SAE 20W-60 Full Synthetic Racing Motor Oil, 1 Quart
    Red Line®60WT SAE 20W-60 Full Synthetic Racing Motor Oil, 1 Quart
    0
    # mpn4900907957
    60WT SAE 20W-60 Full Synthetic Racing Motor Oil, 1 Quart by Red Line®. Racing oils provide more wear protection than motor oils for passenger vehicles, however, these products contain fewer detergents and are not suitable for street use.
    Racing oils provide more wear protection than motor oils for passenger vehicles, however, these products contain fewer detergents and are not suitable for street useReformulated for improved frictional properties
    $20.95
  • Red Line® - 70WT Full Synthetic Racing Motor Oil, 1 Gallon
    Red Line®70WT Full Synthetic Racing Motor Oil, 1 Gallon
    0
    # mpn4900907859
    70WT Full Synthetic Racing Motor Oil, 1 Gallon by Red Line®. Racing oils provide more wear protection than motor oils for passenger vehicles, however, these products contain fewer detergents and are not suitable for street use.
    Racing oils provide more wear protection than motor oils for passenger vehicles, however, these products contain fewer detergents and are not suitable for street useReformulated for improved frictional properties
    $79.85
  • Shell® - Rotella™ T1 SAE 50 Conventional Heavy Duty Diesel Motor Oil, 5 Gallons
    Shell®Rotella™ T1 SAE 50 Conventional Heavy Duty Diesel Motor Oil, 5 Gallons
    0
    # mpn4872354524
    Rotella™ T1 SAE 50 Conventional Heavy Duty Diesel Motor Oil, 5 Gallons x 1 Pail by Shell®. Rotella™ T1 is an easy-flow single grade oil provides quality lubrication, consistent performance and excellent wear protection in diesel...
    $121.52


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