05806 | Genuine Stanadyne® Injection Pump For John Deere 6068H

• John Deere 200C Excavator
• John Deere 640G Skidder
• John Deere 648G Skidder
• John Deere 750J Crawler Dozer
• John Deere 850J Crawler Dozer
• John Deere 2054 Logger
• John Deere 7420 Tractor
• John Deere 7520 Tractor
• John Deere 7715 Tractor
• John Deere 7815 Tractor
• John Deere 9470 STS Combine
• John Deere S540 Combine

John Deere also identifies the following compatible 6068 engine variants:

• 6068HBM01
• 6068HBM04
• 6068HCQ01
• 6068HCQ05
• 6068HCQ06
• 6068HCQ07
• 6068HF275
• 6068TBM01
• 6068TBM02
• 6068TFM76
• 6068TJ04
• 6068TJ12
• 6068TJ14
• 6068TJ15
• 6068TYC50

• Pressurize fuel — creates the high pressure needed for fuel injection and proper atomization.
• Meter fuel — supplies the correct amount of fuel according to engine speed and load.
• Control injection timing — ensures fuel is delivered at the proper point in the combustion cycle.
• Distribute fuel — sends fuel to the correct cylinder in the correct firing sequence.
• Support engine power and efficiency — accurate fuel delivery helps maintain proper combustion, power, fuel economy, and emissions.

• Hard starting or long cranking — the pump may not generate sufficient injection pressure.
• Engine will not start — a severely failed pump may stop delivering fuel altogether.
• Loss of engine power — especially noticeable during acceleration, towing, or climbing hills.
• Rough or unstable idle — inconsistent fuel delivery can cause uneven engine operation.
• Engine misfires — incorrect fuel quantity or timing can cause incomplete combustion.
• Engine stalling — the engine may stall at idle or under load.
• Hesitation or surging — fuel delivery may fluctuate as pump pressure or internal components deteriorate.
• Excessive exhaust smoke — white, gray, or black smoke can occur when fuel delivery or injection timing is incorrect.
• Fuel leaks around the pump — worn seals or damaged pump components can allow diesel to leak.
• Check Engine / warning light — modern electronically controlled systems may store fuel-pressure or injection-related fault codes.
• Poor fuel economy — incorrect fuel metering can increase fuel consumption.
• Unusual pump noise — whining, grinding, or other abnormal noises can indicate mechanical wear.