Engine Coupler for MerCruiser GM V6 & V8 – One-Piece Rear Main Seal

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About this product

This replacement engine coupler connects the engine to the sterndrive input shaft, transferring engine power to the drive. It is designed for compatible MerCruiser GM-based V6 and V8 petrol engines fitted with a one-piece rear main seal and a 12¾-inch flywheel. Used in selected engine replacement conversions, this coupler allows a newer one-piece-rear-main-seal engine to replace an older two-piece-seal engine when the correct mounting and flywheel arrangement is retained. Product details Part type: Engine coupler assembly Fitting position: Rear of engine to sterndrive input shaft Mounting type: Intermediate stud mount Application: Selected MerCruiser GM V6 and V8 petrol engines Engine references: 4.3L V6, 5.0L V8 and 5.7L V8, subject to installation Rear main seal configuration: One-piece seal on the replacement engine Flywheel diameter: 12¾ inches (approximately 324 mm) Intended use: Compatible engine replacement and conversion installations Product status: Aftermarket replacement (non-OEM) Replaces manufacturer’s part number 14505A2 Check compatibility Confirm the replacement using the original coupler reference and the specifications of the engine being installed. Check the rear

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