JOHN DEERE TRACTORS:
• John Deere 5215/5310/5410/5510/5603/5625 4045/6068 PowerTech 4.5-6.8L Diesel (1999-2012)
JOHN DEERE COMBINES:
• John Deere 1170/1450CWS/1550CWS 6068 PowerTech 6.8L Diesel (2000-2010)
IMPORTANT:
This timing gear cover gasket fits the John Deere 4045/6068 PowerTech engine family used in 5-series tractors (5215/5310/5410/5510/5603/5625) and combines (1170/1450CWS/1550CWS). Note that R520131 and R520132 are DIFFERENT timing cover gaskets — they are NOT interchangeable. Verify your part number by engine serial number, not just tractor model.
The 4045 (4.5L 4-cyl) and 6068 (6.8L 6-cyl) share the same basic block family but have different timing cover configurations. Failure symptoms: oil seeping from the front timing cover area. When replacing, inspect the front crankshaft seal and replace if hardened or leaking — the labor overlaps completely. Clean all old gasket material from both surfaces. Also inspect the timing gears for wear while the cover is removed, especially on high-hour machines.
⚠️ Verify R520131 vs R520132 — not interchangeable. Confirm engine serial number.
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