Timing Gear Compatible With John Deere 1975-1990 Jd 300 Series (Jd 300) 3-Cyl Diesel Lower Timing

JOHN_DEERE:
• John Deere JD 300 Series (1975-1990)


IMPORTANT:
Lower timing gear for John Deere 300-Series 3-cylinder engines. OEM: T24252. Limited application data is available for this specific part number — research indicates it fits JD 300-Series engines with possible Yanmar involvement, but specific engine models and tooth count require verification against your existing gear.

When replacing any timing gear, mark the original gear position before removal. Align all timing marks per the service manual — incorrect timing on 3-cylinder engines is particularly noticeable as rough running and hard starting. Inspect all mating gears in the train.

⚠️ Verify this part matches your specific 300-Series engine before ordering.