Mercury & Mariner 4-Cylinder Powerhead Rebuild Kits

At OBParts, we carry a complete selection of Mercury and Mariner 4-cylinder outboard powerhead rebuild kits designed to restore your engine’s reliability and performance. Each kit includes high-quality components engineered for durability, whether you’re repairing a 2-stroke Carb, EFI, or Optimax model our rebuild kits provide all the essential parts all in one kit to bring your outboard back to life, ensuring smooth operation on the water.

OBParts delivers trusted service and reliable products to boaters worldwide. We offer both OEM and premium aftermarket rebuild kits, giving you affordable options without sacrificing quality. With expert customer support, fast shipping, and a wide inventory of Mercury marine engine parts, OBParts makes it easy to find precisely what you need to keep your outboard running strong season after season.