JOHN DEERE TRACTORS:
• John Deere 5415/5420/5520/6120 PowerTech 4.5L/6.8L Diesel (2002-2006)
• John Deere 6215/6220/6320/6403 PowerTech 4.5L/6.8L Diesel (2002-2006)
• John Deere 6415/6420 PowerTech 4.5L/6.8L Diesel (2002-2006)
JOHN DEERE CONSTRUCTION:
• John Deere 324H/344H/410G/644G PowerTech Diesel (2001-2008)
• John Deere 648GII PowerTech Diesel (2001-2008)
JOHN DEERE BACKHOE_LOADERS:
• John Deere L512/L514/L524/L534 PowerTech Diesel (2002-2008)
JOHN DEERE TELEHANDLERS:
• John Deere 3220/3415/3420 PowerTech Diesel (2003-2008)
JOHN DEERE WHEEL_LOADERS:
• John Deere 324H/344H/644G/3800 PowerTech Diesel (2001-2008)
IMPORTANT:
49-tooth UPPER idler gear in the PowerTech 4045/6068 timing gear train. Helical cut. Do NOT confuse with lower idler RE56369 (43T) — different tooth count, different position. Both must be installed correctly for proper valve and injection timing.
Used in JD 5415-6420 tractors and 7210-7520 series. The upper idler transmits rotation between the crankshaft gear and camshaft gear. A worn idler causes timing drift, rough running, and potential valve-to-piston contact. Inspect bushing bore and shaft for wear.
⚠️ UPPER idler (49T). Lower idler (43T) is RE56369 — NOT interchangeable.
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