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This JE Pistons oil rail support is a piston oil rail support ring sized for 3.999–4.029 in bores with a 0.162 in radial depth. It features JE's exclusive locking detent to prevent rotation of the oil rail and to keep the rail support gap at 90 degrees from the pin bore opening, stopping rail spiraling on pistons with short compression distances. Each unit is supplied for individual bore sizes and addresses oil rail retention concerns.
JE Pistons Oil Rail Support Ring 3.999in-4.029in Bore
