Wholesale Mecruiser 4.3 V6 Engine Dry Joint Exhaust Manifold Replacement 864612t01 864612t02 Sierra 18-1842 Barr Mc-1-864612

Wholesale Mecruiser 4.3 V6 Engine Dry Joint Exhaust Manifold Replacement 864612t01 864612t02 Sierra 18-1842 Barr Mc-1-864612. 100% Precise OEM Compatibility: Direct replacement for MerCruiser 4.3L V6 engines (2002-present, serial numbers 0M615000 and up), seamlessly replacing OEM 864612T01 and aftermarket Sierra 18-1842. Advanced Dry Joint Design: Features isolated water and exhaust passages to eliminate the risk of water leaking internally into cylinders, providing ultimate hydro-lock protection. Premium HT250 Cast Iron Construction: Engineered with high-strength gray iron (ASTM A48 Class 35 equivalent) for exceptional thermal shock resistance and heavy-duty marine durability. Anti-Corrosion Interior & Exterior Coating: Fully protected with a premium marine-grade coating inside the water jackets and on the exterior to prevent rust and salt crusting. Flawless CNC Ground Sealing Surface: Machined to strict flatness tolerances on advanced CNC centers to ensure a perfect, zero-leak seal with gaskets and sealing rings. 100% Factory Pressure and Leak Tested: Every single manifold undergoes mandatory hydrostatic pressure testing before packaging to guarantee casting integrity and crack-free delivery.