RE557897 Rotary Fuel Injection Pump for John-Deere 6068H — Product Overview This is a mechanical rotary distributor diesel fuel injection pump for the John-Deere 6068H and 6068T PowerTech 6.8L six-cylinder engine family. It is the machine figure RE557897 (also written RE-557897), built to pump builder figure DE2635-6237 (also written DE26356237). The pump uses a single pumping head with an internal transfer pump, mechanical governor, electric shutoff, and automatic hydraulic