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Valve Cover Gasket Compatible With John Deere 9750Sts/9860Sts 2003-2010 6125 12.5L 6-Cyl Diesel

TR505677A3
OEM PART NUMBERS:
• John Deere: R505677 (Primary OEM)

SPECIFICATIONS:
• Gasket Location: Valve Cover
• Material: Composite
• Type: Individual Gasket
• Condition: New

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

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Description

JOHN DEERE TRACTORS:
• John Deere 9220/9320/9420/9520/9620 6125 PowerTech Plus 12.5L Diesel (2002-2012)

JOHN DEERE COMBINES:
• John Deere 9750STS/9860STS 6125 12.5L Diesel (2003-2010)


IMPORTANT:
This valve cover gasket fits the John Deere 6125 PowerTech Plus engine — the 12.5L inline 6-cylinder used in 9220/9320/9420/9520/9620 4WD tractors and 9750STS/9860STS combines. Do NOT confuse with gaskets for the 6135H (13.5L) or 6090 (9.0L) — each engine family uses a unique valve cover gasket that is not interchangeable with the others.

Failure symptoms: oil seeping from the valve cover, oil dripping onto the exhaust manifold or turbo. The composite gasket material degrades from heat cycling over time, especially on high-hour engines. When replacing, clean both the valve cover and cylinder head surfaces thoroughly. Inspect the valve cover for warping — the long, flat cover surface is susceptible to distortion on high-hour machines. Torque bolts in the correct sequence per the JD service manual.

⚠️ Fits 6125 (12.5L) engine ONLY — not 6090, 6135H, or 6068. Verify engine model.

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  • Item Requires Shipping
  • 0.1 lbs.
  • W10.0000” x H1.0000” x L12.0000”
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