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JD Tractor Crankshaft Pulleys & Dampers

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JD Tractor Crankshaft Pulleys & Dampers parts list
Image Fits Model Description Part # Price Product Details
Torsional Damper, Dual; Heavy Duty for John Deere 330LC, 850JR, 370 & more – RE57604 See Details 850J, 850JR, 370, 670G, 672G, 770G, 772G, 870G, 872G, 330LC, 330LCR, 560D, 762B, 740G, 748G, 748GII, 748GIII, 903K, 909K, 953K, 959K, 2704, 2854, 2904, 3204, 7200R, 7210R, 7215R, 7230R, 7270R, 7310R, 8120, 8120T, 8130, 8220, 8220T, 8225R, 8230, 8230T Torsional Damper, Dual; Heavy Duty RE57604
$340.00
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Pulley, Crankshaft for John Deere 301, 1020 & more – R59915 See Details 301, 1020, 1530, 820, 830 Pulley, Crankshaft R59915
$125.00
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Crankshaft Pulley, Front for John Deere Equipment, R50414 See Details 5200 (S/N 335846>), 5400 (S/N 335846>), 5440, 4630, 7020 (S/N 335846>) Crankshaft Pulley, Front R50414
$434.28
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Torsional Damper for John Deere Forage Harvesters and Tractors See Details 9100, 9120, 9200, 9220, 9300, 9320, 9320T, 9330, 9400, 9410R (after serial #000101 to #001999), 9420, 9420R (after serial #015000), 9420T, 9430, 9430T, 9460R (after serial #000101 to #001999), 9470R (after serial #015000) ETC Torsional Damper RE220150
$1,040.04
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Dampener Pulley for John Deere 9950, 770A, 4050, and More - RE15018 See Details 9950, 9960, 9965, 9970, 770A, 770AH, 770B (Engine SN <499999), 770BH (Engine SN <499999), 772A, 772AH, 772B (Engine SN <499999), 772BH (Engine SN <499999), 664D, 4050, 4055, 4250, 4255, 4450, 4455 (North America Edition), 4555, 4560 ETC Dampener Pulley RE15018
$207.53
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John Deere Torsional Damper for Combines, Dozers, Tractors 9560STS, 9976, 750C, 750C-II, 330C, 6610 -- RE500917 See Details 750C/II, 750J*, 850C/II, 850J*, 330C/CLC/LCR, 370/C, 644G/H/J, 724J, 3554, 530B, 535, 560D (>604614), 740G, 748G/GII/GIII (>604614), 762B, 608S, 653E, 753G/GL/J, 759G/J, 853G/J, 900, 903G/J, 909J, 950, 953G/J, 959J Torsional Damper RE500917
$398.00
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John Deere Torsional Damper for Combines, Dozers, Tractors S560, S650, 850J, 850JR, 7250, 903K -- RE520465 See Details S560, S650, S660, S670, S670 Hillmaster, S760, S770, 9560i STS, 9660STS, 9670STS, 9760STS, 9770STS, 850J, 850JR, 7250, 903K, 903KH, 909K, 909KH, 953K, 959K, 4930, 724K, 744K, 2704, 2854, 2904, 3204, 8130, 8225R, 8230, 8230T, 8235R, 8245R, 8260R Torsional Damper RE520465
$372.31
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Crankshaft pulleys and torsional dampers for John Deere tractors, including dampener pulleys, front crankshaft pulleys, and heavy duty dual dampers across the 301, 1020, 4050, 8130, and 8230R series machines.

Fits Models At A Glance

  • Utility & Row Crop: 301, 820, 830, 1020, 1530, 5200, 5400, 5440
  • 40 Series: 4050, 4055, 4250, 4255, 4450, 4455, 4555, 4560, 4630, 7020
  • 7R & 8R Series: 7200R, 7210R, 7215R, 7230R, 7270R, 7310R, 8120, 8130, 8220, 8225R, 8230, 8230T, 8235R, 8245R, 8260R

Key Notes

  • Application: Absorb crankshaft vibration and drive front accessories such as belts and pulleys
  • Types: Front crankshaft pulleys, torsional dampers, and heavy duty dual dampers
  • Fitment: Several parts vary by engine serial number, so confirm before ordering
  • Condition: New and quality replacement units offered

Why Choose Broken Tractor

  • ✅ Wide John Deere tractor damper and pulley coverage
  • ✅ Fast shipping from two US locations
  • ✅ Knowledgeable team to confirm correct fitment

Frequently Asked Questions

What does a torsional damper do on a John Deere tractor?

A torsional damper absorbs vibration from the crankshaft to protect the engine and driven accessories. When it wears, you may notice increased vibration or belt and pulley problems. Replacing a failing damper helps prevent damage to the crankshaft and front components.

How do I know which crankshaft pulley fits my John Deere 4050?

Match the part number to your existing pulley and confirm the engine serial number, since some pulleys such as R50414 cover specific serial ranges. If you are unsure, compare bolt pattern and diameter with the original. Our parts team can help verify the correct unit by calling (800) 909-7060.

What is the difference between a crankshaft pulley and a dampener pulley?

A crankshaft pulley drives front accessory belts, while a dampener or torsional damper also reduces crankshaft vibration. Some John Deere units combine both functions, and heavy duty dual dampers like RE57604 offer added vibration control. Broken Tractor carries both standard pulleys and damper style units.

Do these pulleys and dampers fit by engine serial number?

Yes, several fit specific engine serial ranges, so a part correct for one build may not fit another year. Always check your engine serial number against the listing before ordering. Matching the original part number is the most reliable way to confirm fitment.

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