Case Loader Timing Cover parts list
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480E, 480F, 580SE, 580K, 580SK, 580L, 580SL, 590 Turbo, 590SL, 580M, 580SM, 590SM (Series I), 480LL, 480F LL, 570LXT, 570MXT, 584E-586E, 585G-588G, 450C, 455C, 550, 550E-H, 650, 650E-K, 750H, 750K, 1840, 1845C, 40XT-95XT, W11B, W14B, 660, 760, 686G |
Oil Filter Head Plate |
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J918954 |
$94.00
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480F, 570LXT, 570MXT, 580SE, 580K, 580SK, 580L, 580SL, 580M, 580SM, 590, 590 Turbo, 590SL, 590SM, 450C, 550, 550E, 550G, 550H, 650, 650G, 650H, 750H, 750K, 850D, 850E, 850G, 850H, 850K, 1150E, 1150G, 1840, 1845C, 40XT, 60XT, 75XT, 85XT, etc |
Used Timing Cover |
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J920758U |
$120.00
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570MXT, 580M, 580SL, 580SM, 590 , 590SL, 590SM, 680L, 780C, 780D, 550E, 550G, 550H, 650H, 650K, 750H, 750K, 850E, 850G, 850H, 850K, 1150G, 1150H, 521D, 621B, 621C, 621D, 1840, 1845C, 60XT, 70XT, 90XT, 95XT, 586G, 588G, 686G, 686GXR, 688G |
Timing Cover |
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J936257 |
$543.00
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Timing covers for Case Cummins 4B and 6B engines, including new and used options with 4-bolt pump configurations. These covers seal the front of the engine, protecting the timing gear train on a wide range of Case loaders, dozers, and skid steers powered by Cummins diesel engines.
Fits Models At A Glance
- Loader Backhoes: 480F, 570LXT, 570MXT, 580K, 580L, 580M, 580SE, 580SK, 580SL, 580SM, 590, 590 Turbo, 590SL, 590SM
- Skid Steers: 40XT, 60XT, 70XT, 75XT, 85XT, 90XT, 95XT, 1840, 1845C
- Wheel Loaders: 521D, 621B, 621C, 621D
- Dozers/Crawlers: 450C, 550, 550E, 550G, 550H, 650, 650G, 650H, 750H, 750K, 850D, 850E, 850G, 850H, 850K, 1150E, 1150G, 1150H
Key Notes
- Engine Fitment: Designed for Cummins 4B and 6B series diesel engines
- Pump Configuration: New unit (J936257) is specific to 4-bolt injection pump mounting
- Condition Options: New replacement and used/tested covers available
- Function: Seals and protects front timing gear train from contamination and oil loss
Why Choose Broken Tractor
- ✅ New and used options available for more budget flexibility
- ✅ Broad Cummins engine fitment across Case machine lines
- ✅ Fast shipping from Baton Rouge, LA and Kimbolton, OH
Frequently Asked Questions
Which Case wheel loaders use the Cummins 4B/6B timing cover?
The new timing cover J936257 is listed for Case 521D, 621B, 621C and 621D wheel loaders with Cummins 4B or 6B diesel engines. Broken Tractor also offers a used Case Cummins timing cover, J920758U, for Cummins 4B and 6B engines. Fitment can vary by serial number and engine setup, so match the part number on your old cover or confirm with our parts team before ordering.
What does 4-bolt pump mean on Case timing cover J936257?
It means the new J936257 timing cover is built for engines with a 4-bolt injection pump mounting. If your Case loader's Cummins engine uses a different pump mounting, this cover may not fit. Check your current cover and pump mounting, or call (800) 909-7060 to confirm the right cover for your machine.
Should I buy a new or used timing cover for my Case loader?
Both work, and the choice mostly comes down to budget and fitment. Broken Tractor carries the new J936257 cover for 4-bolt pump engines and a used, tested Case Cummins timing cover, J920758U, for budget flexibility. Because the two part numbers have different fitment lists, match the part number or model before you choose.
What does the timing cover do on a Case wheel loader engine?
The timing cover seals the front of the Cummins 4B or 6B engine and protects the timing gear train. It keeps dirt and debris out of the gears and keeps engine oil from leaking out the front. A cracked or damaged cover can let in contamination and cause oil loss, so it should be replaced.
Does Broken Tractor carry the oil filter head plate for Case wheel loaders with Cummins engines?
Yes, we carry oil filter head plate J918954 for Cummins 4B and 6B engines. It is listed for Case W11B and W14B wheel loaders, along with other Case machines that use these engines. Match the J918954 part number on your current plate to confirm fitment.
