The F6B pump is used on raw water and fresh water cooled 4.3 ,5.0, 5.7, 7.4L Chevy V8 engines and Ford 5.0, 5.8L engines. 1 (ONE) Dual Lip Seal with Internal Stainless Steel Spring Design. This part will ONLY work on years and HP inboards that one of the part numbers listed above.
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