Wiseco Piston Oil Rail Supports
Oil Rail Support, Dimpled, 4.670 in. up to 4.720 in. Bore, Each
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Estimated Ship Date: Mar 31, 2026 Would you rather pick it up?
Overview
Wiseco Piston Oil Rail Supports
Wiseco piston oil rail supports are effective in applications where the piston oil ring groove intersects the pinhole. They can be used only in pistons that have the groove machined 0.030 in. wider than the oil ring. They're manufactured from spring steel and install against the bottom sill of the oil ring groove. Available in different bore diameters to suit your specific engine's needs, Wiseco piston oil rail supports will keep your pistons working smoothly throughout the entire operating range.
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Some parts are not legal for use in California or other states with similar laws / regulations
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