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Oil Pump Gear Compatible With John Deere 4045T/4045Tf/4045Hf 1990-2010 Powertech 4.5L Diesel (Jd

TR120638A1
OEM PART NUMBERS:
• John Deere: R120638 (OEM replacement part number)
• John Deere: 120638 (Alternative designation)

SPECIFICATIONS:
• Teeth Count: 30
• Gear Type: Spur Gear
• Material: Alloy Steel, Heat Treated
• Position: Oil Pump Drive
• Mounting Style: Direct Drive
• Engine Family: John Deere PowerTech 4045/6068
• Condition: New

APPLICATION:
• Compatible with John Deere 4045T/4045TF/4045HF (1990-2010)
• Compatible with John Deere 6068T/6068TF/6068HF (1990-2010)

PRODUCT NOTICE:
As a parts distributor we mostly sell aftermarket parts (any OEM parts would be noted as such). Aftermarket parts are not sourced from the original vehicle or equipment manufacturer, but are designed to function the same as - if not better than - the original. All parts sold are new.

WARNING - This product may expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov

Was: $280.61
Sale: $160.35
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Save: $120.26
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Description

JOHN DEERE INDUSTRIAL_ENGINES:
• John Deere 4045T/4045TF/4045HF PowerTech 4.5L Diesel (1990-2010)
• John Deere 6068T/6068TF/6068HF PowerTech 6.8L Diesel (1990-2010)


IMPORTANT:
30-tooth spur oil pump drive gear for JD PowerTech 4045 (4.5L, 4-cyl) AND 6068 (6.8L, 6-cyl) engines. Same gear fits both engine sizes — the pump interface is identical. Alt: 120638 (without R prefix).

This gear drives the oil pump at engine speed — failure means immediate loss of oil pressure. Failure symptoms: sudden oil pressure drop, metallic noise from front cover area, oil pressure gauge fluctuation with RPM. Used in industrial and marine PowerTech applications. When replacing, also inspect the oil pump drive shaft and pump itself — a gear failure often damages the pump internals. Replace front cover gasket.

⚠️ Fits both 4045 and 6068 PowerTech. Inspect oil pump when replacing gear.

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Shipping Information

  • Item Requires Shipping
  • 1.3 lbs.
  • W6.0000” x H3.0000” x L6.0000”
  • Free Shipping!

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