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The Peterson R4 oil pump drive spud ball (1/4-20) is a purpose-made retention fastener for dry sump oil pump pulley setups. Offered in a ball-style retention design, it serves to secure or prime the pump drive where a 1/4-20 thread is required. The part is intended for straightforward use in compatible Peterson pulley and pump assemblies.
Peterson Fluid Systems Drive Spud Ball 1/4-20
