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JD Tractor Engine Blocks & Components

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JD Tractor Engine Blocks & Components parts list
Image Fits Model Description Part # Price Product Details
Heater, Engine Block for John Deere 415B, 300D, 655B & more – RE227949 See Details 415B, 610B, 710B, 710G, 324H, 344E, 344H, 655B, 755A, 755B, 750B, 750C, 750J, 850B, 850C, 850J, 450LC, 490E, 590D, 595D, 690B, 750, 890A, 892DLC, 992ELC, 570B, 670C, 670CH, 672A, 672CH, 770A, 770B, 770C, 770CH, 772A, 772B, 772CH, 300D, 340D, 444 Heater, Engine Block RE227949
$219.00
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John Deere Reman 4045T long block SE501061 for 450G dozer See Details 344G, 410C, 410D, 444E, 444G, 450G, 450G LT, 450G LGP, 455G, 490E, 495D, 510C, 510D, 540D, 540E, 548D, 548E, 550G, 555G, 590D, 595D, 650G, 6400, 6400L, 6500, 6500L Reman 4045T Long Block JD-4045T-LB-U
$12,650.00
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Isolator for John Deere Backhoes, Tractors, and Graders - AT139776 See Details 620G, 622G, 622GP, 670C, 670C II, 670CH, 670CH II, 670G, 672CH, 672CH II, 672G, 770B, 770BH, 770C, 770C II, 770CH, 770CH2, 770G, 772B, 772BH, 772CH, 772G, 870G, 872G, 310D, 310SE, 315D, 315SE, 410D, 410E, 510D, 710D, 605K, 655K, 755K, 1050K ETC Isolator AT139776
$54.00
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Bare Cylinder Block for John Deere Models (RE50657) See Details 415B, 710B, 710D, 9400 Maximizer, 9930, 7440, 7445, 7450, 6059 (-699999), 6068 (-699999), 515B, 710C, 740G, 748E, 748G, 7200, 7400 Bare Cylinder Block RE50657
From $1,634.07
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Bare cylinder blocks, reman long blocks, engine block heaters, and mounting isolators for John Deere tractors, covering popular engine platforms used across the 6059, 6068, and 4045T families and the tractors they power.

Fits Models At A Glance

  • 7000 Series: 7200, 7400, 7440, 7445, 7450
  • 6000 Series: 6400, 6400L, 6500, 6500L
  • Maximizer: 9400, 9930
  • Engine Platforms: 6059, 6068, 4045T

Key Notes

  • Application: Bare blocks, reman long blocks, block heaters, and engine isolators
  • Condition: New, used, and remanufactured assemblies
  • Fitment: Varies by engine family and serial number range
  • Coverage: Multiple John Deere tractor generations and displacements

Why Choose Broken Tractor

  • ✅ Wide John Deere engine block coverage in one place
  • ✅ New, used, and reman options to match budgets
  • ✅ Fast shipping from two US warehouses

Frequently Asked Questions

What engine does the reman long block fit?

The 4045T reman long block (SE501061) fits a range of John Deere machines powered by that engine family. Because fitment depends on the specific engine platform and serial number, match the part number or confirm your engine details before ordering.

Is the cylinder block bare or complete?

The RE50657 cylinder block is a bare block, meaning it ships without internal components. You will need to transfer or source pistons, crankshaft, and related parts separately depending on your rebuild.

What is the engine block heater for?

The RE227949 engine block heater warms coolant to ease cold weather starting and reduce engine wear during startup. Fitment varies across models, so confirm the part number matches your engine.

How do I know which block fits my tractor?

Fitment depends on your engine family, displacement, and serial number range rather than just the tractor model. Match the John Deere part number to your original, or call our parts team at (800) 909-7060 to confirm.

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