Aftermarket Marine Exhaust Bellows for MerCruiser Alpha 1, Gen 2, Bravo 1-3 | Replaces 18654A1 32734A3 | Includes 2 Stainless Clamps($9.99Value)

Description

EXTREMELY TIGHT FACTORY FIT: Crucial Installation Note! Both ends of this exhaust bellows have the exact same 2.5-inch inner diameter. If the part appears "too small" out of the box, it is because this thick marine-grade rubber is engineered for an ultra-tight, watertight seal and requires significant mechanical stretching to install over the exhaust horn. REQUIRES PROPER TOOLS & ADHESIVE: Installing stern drive bellows is a complex mechanical job. We highly recommend using a marine exhaust bellows expander tool (part # 91-45497A1) and marine-grade bellows adhesive (not included) to properly stretch, slide, and seal the stiff rubber over the metal housing. MARINE-GRADE AFTERMARKET REPLACEMENT: Built to exact OEM specifications, this heavy-duty rubber bellows directly replaces MerCruiser part numbers 18654A1, 32734A3, 32734, and Sierra 18-2750. Ensure your manual calls for a true bellows, not a smooth exhaust tube. STAINLESS STEEL CLAMPS INCLUDED: Comes complete with two (2) premium marine-grade stainless steel hose clamps designed to resist saltwater corrosion and securely lock the ribbed rubber ends tightly onto the exhaust housings. BROAD STERN DRIVE COMPATIBILITY: Fits a wide range of MerCruiser setups from 1983 and newer, including R, MR, Alpha One (Gen 1 & Gen 2), and Bravo I, II, III drives. Please consult your service manual to confirm part numbers before ordering. Keep your marine engine running smoothly and safely with this premium aftermarket exhaust bellows replacement for MerCruiser stern drives. Engineered to meet or exceed OEM specifications, this heavy-duty ribbed rubber boot serves as a direct replacement for MerCruiser part numbers 18654A1, 32734A3, 32734, and Sierra 18-2750. The kit includes the exhaust bellows and two marine-grade stainless steel hose clamps to ensure a tight, corrosion-resistant seal. Designed for broad compatibility, it fits most MerCruiser R, MR, Alpha One (Gen I and II), and Bravo I, II, and III drives from 1983 and newer. Please note that stern drive bellows installation is a complex mechanical job. Both openings on this bellows feature an exact 2.5-inch inner diameter. Because the marine-grade rubber is engineered to be thick and stiff to withstand heat and underwater pressure, it is intentionally designed for an ultra-tight, leak-proof fit. It will not slide on easily by hand. For a proper installation and seal, the use of a marine bellows expander tool (OEM # 91-45497A1) and marine-grade bellows adhesive (sold separately) is highly recommended to properly stretch and secure the rubber over the metal exhaust horn. Always consult your engine's service manual to confirm exact part compatibility before ordering.