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JD Dozer Belt Tensioner, Timing Cover & Gears

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JD Dozer Belt Tensioner, Timing Cover & Gears parts list
Image Fits Model Description Part # Price Product Details
John Deere Engine Belt Tensioner by Broken Tractor RE548027 See Details 310E, 310SE, 310G, 310SG, 310J, 310SJ, 310K, 310SK, 310L, 310SL, 315SG, 315SJ, 315SK, 315SL, 410J, 410K, 410L, 710J, 710K, 710L, 450J, 550J, 550K, 605K, 650J, 650K, 655K, 700J, 700K, 750J, 750K, 850J, 850K, 344J, 344K, 444J, 444K, 524K, 544J, 544K... Engine Belt Tensioner RE548027
$64.00
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John Deere Engine Idler Pulley -- RE505264 See Details 310K, 310L, 310SL, 315SL, 325S, 410L, 710L Fits JD Wheel Loaders: 444, 444K, 524, 524K, 524L, 544, 544K, 544L, 550K, 624, 624K, 624L, 644G, 644X, 644K, 724, 724K, 744K, 750K, 755K, 824K, 844K,944K Fits JD Dozers: 950K, 650K, 655K, 700K, 850K, 850L Engine Idler Pulley RE505264
$60.00
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Upper Timing Gear for John Deere Dozers, Loaders & Backhoes – Fits 310, 450, 444, 750 See Details Backhoes - 310, 310A, 310B, 310C, 410, 410B, 410C, 410D, 510B, 510C, 510D, 610B, 610C, 710B, 710C, 710D, 210C, 300B, 302A, 401C Dozers - 450B, 450E, 550, 550A, 550B, 450G, 450H, 550G, 550H, 650G, 650H, 750, 750B, 750C Wheel Loaders - 444, 444C, 444D Upper Timing Gear AR91660
$155.00
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John Deere Camshaft Gear (48 Teeth) Wheel Loaders - 444, 544, 544A, 544B, 544C, Excavators - 590D, 595, 595D, 490, 110, 120, 160LC, 490D, 490E, 495D, 190E, 290D, 690D, Dozers - 450B, 450E, 550, 550A, 550B, 400G, 450G, 450H, 550G, 550H, 650G, 650H, 750, Backhoes - 310, 310A, 310B, 310C, -- T20070 See Details Wheel Loaders - 444, 544, 544A, 544B, 544C, Excavators - 590D, 595, 595D, 490, 110, 120, 160LC, 490D, 490E, 495D, 190E, 290D, 690D, Dozers - 450B, 450E, 550, 550A, 550B, 400G, 450G, 450H, 550G, 550H, 650G, 650H, 750, Backhoes - 310, 310A, 310B, 310C, Camshaft Gear T20070
$125.00
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John Deere Crankshaft Gear -- T20094 | Broken Tractor See Details Backhoes - 310, 310A, 310B, 310C, 410, 410B, 410C, 410D, 510B, 510C, 510D, 610B, 610C, 710B, 710C, 710D, 210C, 300B, 302A, 401C Dozers - 350C, 350D, 450B, 450C, 450D, 450E, 550, 550A, 550B, 450G, 450H, 550G, 550H, 650G, 650H, 400G Wheel Loaders - 544 Crankshaft Gear T20094
$91.00
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John Deere 350, 350B, 450, 450B, 450C, 550 Engine Timing Cover (Replaces Casting# R52880 & T20153) -- AR58196 | Broken Tractor See Details 350, 350B, 450, 450B, 450C, 550 Timing Cover (Replaces Casting# R52880 & T20153) AR58196
$260.00
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John Deere lower engine timing gear AT24252 backhoe dozer loader See Details 210C, 300B, 302A, 310, 310A, 310B, 310C, 401C, 410, 410B, 410C, 410D, 510B, 510C, 510D, 610B, 610C, 710B, 710C, 710D, 450B, 450E, 450G, 450H, 550, 550A, 550B, 550G, 550H, 650G, 650H, 750, 750B, 750C, 444, 444C, 444D Lower Engine Timing Gear AT24252
$135.00
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Idler, Roller for John Deere 710D, 1710D, 750J & more – RE505265 See Details 410E, 460E, 710D, 750J, 850J, 850J-II, 850JR, E330, E360, E400, 330CLC, 370, 370C, 3554, 1710D, 770C, 770C II, 770CH, 770CH-II, 770D, 772CH, 772D, 870D, 872D, 1711D, 1910E, 753JH, 803MH, 853JH, 853MH, 859MH, 903JH, 903MH, 909JH, 909KH, 909MH, 953MH Idler, Roller RE505265
$100.00
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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 120 120C excavator fan drive hub — RE500539 See Details 120, 120C, 160C LC, 200LC, 230LCR, 260, 270, 280, 210L, 210LJ, 310E, 310G, 310SG, 315SG, 310J, 310SJ, 310L, 315SJ, 325J, 325SL, 410G, 410J, 410L, 450H, 550H, 650H, 450J, 550J, 650J Fan Drive Hub with Bracket RE500539
$187.00
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Engine belt tensioner for John Deere construction equipment See Details 250D, 260E, 300D, 850L, 950K, 350GLC, 380GLC, 3154G, 3754G, 670G, 670GP, 672G, 672GP, 770G, 770GP, 772G, 772G0P, 870G, 872G, 848L, 948L, 3156G, 3756G, 803M, 859M, 903M, 953M, 959M, 644K, 724K, 724L, 744K II, 744L, 824L, 1270E, 1270G, 1470E, 1470G Belt Tensioner RE506352
$82.00
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Belt tensioners, timing covers, timing gears, idler pulleys, and fan drive hubs for John Deere crawler dozers, covering new and used engine drive components across 350, 450, 550, 650, and 750 series machines.

Fits Models At A Glance

  • 350 Series: 350, 350B, 350C, 350D
  • 450 Series: 450B, 450C, 450D, 450E, 450G, 450H, 450J
  • 550 Series: 550, 550A, 550B, 550G, 550H, 550J, 550K
  • 650 Series: 650G, 650H, 650J, 650K, 655K
  • 750 Series: 750, 750B, 750C, 750J, 750K
  • 850 Series: 850J, 850K, 850L, 950K

Key Notes

  • Application: Front engine timing and belt drive assemblies
  • Components: Upper and lower timing gears, camshaft and crankshaft gears
  • Drive Parts: Belt tensioners, idler pulleys, fan drive hubs with bracket
  • Condition: New and used options depending on availability

Why Choose Broken Tractor

  • ✅ Correct fitment verified by JD model series
  • ✅ New and used engine parts available now
  • ✅ Fast shipping from two US locations

Frequently Asked Questions

What John Deere dozer models does the upper timing gear AR91660 fit?

The upper timing gear AR91660 fits John Deere dozers including 450B, 450E, 550, 550A, 550B, 450G, 450H, 550G, 550H, 650G, 650H, 750, 750B, and 750C. It also crosses over to several John Deere backhoe and wheel loader models. Match the part number to your machine or confirm with our parts team before ordering.

Does the engine timing cover AR58196 fit a John Deere 450C dozer?

Yes, the engine timing cover AR58196 fits the John Deere 450C dozer, along with the 350, 350B, 450, 450B, and 550. If your machine falls outside these models, match the part number to your engine to confirm proper fitment.

What is the correct belt tensioner for a John Deere 750J or 850J dozer?

Broken Tractor carries the engine belt tensioner RE548027, which fits John Deere dozers including 450J, 550J, 550K, 650J, 650K, 655K, 750J, 750K, 850J, and 850K. Because tensioner fitment can vary by serial number, match the part number to your machine or confirm with our parts team.

Which idler pulley fits a John Deere 650K or 850K dozer?

The engine idler pulley RE505264 fits John Deere dozers including 650K, 655K, 700K, 850K, 850L, and 950K. Confirm the part number matches your engine setup before ordering.

Are new and used timing gears and covers available for John Deere dozers?

Broken Tractor offers both new and used options for timing gears, timing covers, belt tensioners, idler pulleys, and fan drive hubs depending on availability. We stock upper and lower timing gears, camshaft gears, and crankshaft gears for the 350 through 850 series. Call (800) 909-7060 to confirm which condition and part number fits your dozer.

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Product: Category: JD Dozer Belt Tensioner, Timing Cover & Gears Brand: Head Title: JD Dozer Belt Tensioner & Timing Gears | Broken Tractor