Oil Cooler Hose fits John Deere 1630 1640 2040 2140 2240 2350 2550 2750 2940 2950 2955 3040 3140 4030 2030 2130 2150 2255 2355 2555 3150 4040 R55127

Short oil cooler hose used across a wide range of John Deere equipment from the late 1960s through the mid-1990s, primarily the mid-frame two-wheel-drive tractors, the 310 and 410 backhoes, and the 440-through-544 loader and crawler line. Inside diameter is 0.630 inches at both ends; overall length 1.319 inches. Short hoses like this take more heat-cycling stress per inch than long runs, and the failure mode is typically internal deterioration that restricts flow before any cracking shows on the outside. Oil residue around the cooler fittings is the usual tell.