Mercury Marine 18643A7 Engine CouplerTriangular shaped flywheel mount engine coupler kit 18643A7 is for General Motors made MerCruiser V-6 & V-8 (305 & 350 cid) engines (1983-1993) & 454 Mag engines with Alpha stern drives. See your service or parts manual for specific applications.The Quicksilver brand is the leader in delivering uncompromising engine oils, parts and accessories to the marine industry for over 65 years. Quicksilver is the premier supplier of Mercury Marine original Equipment replacement engine parts, oils, and accessories, but also works to serve all original Equipment brands in the marine and powersports industries. It has earned a loyal following by providing the highest quality products that are tested through some of the most rigorous environments and testing procedures. No aftermarket company comes close to the level of research and design as Quicksilver; buying Quicksilver is buying performance, protection and peace of mind. For select MerCruiser Alpha engines and stern drives Produced by Mercury Marine to our stringent original equipment manufacturer specifications to maximize the performance of your Mercury and Mariner outboard or MerCruiser stern drive Normalized SKU: 18643A7UPC Code: 745061124073WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer. For more information go to P65Warnings.ca.gov.

Indmar 885203 Engine Coupler OEM Indmar damper plate fits GM 5.7L, 6.0L, 6.2L & 8.1L marine engines with 14 in. flywheels. Indmar flywheel damper plate Used on Indmar GM 5.7L, 6.0L, 6.2L and 8.1L applications 26 splines Hex head bolts must be used when installing this drive plate on 8.1L marine engines Bolt torque rating 35 foot pounds Replaces Indmar 885016 and 885201 Original Indmar Normalized SKU: 885203

Buck Algonquin 50401S1000 Engine Coupler 1 in. Shaft x 4 in. Flange Split Coupling 4 in. flange diameter 4 bolt-hole pattern 3/8 in. bolt size 3-1/4 in. bolt circle 2 in. overall length 1/4 in. key size Normalized SKU: 50401S1000

Sierra 18-21752-1 Engine CouplerReplacement Engine Coupler replaces: OMC 3853917 replaces: OMC 984290 replaces: OMC 3858437 replaces: OMC 986120 replaces: Volvo 3858437-1 OEM Interchange:OMC: 3853917OMC: 3858437OMC: 984290OMC: 986120VOLVO: 3858437-1Sierra Engine Coupler OMC/Volvo #18-21752-1Normalized SKU: 18217521UPC Code: 808282226855

EMP 93-01848 Engine CouplerThis product replaces:59826A, 3, 840080435961Normalized SKU: 9301848UPC Code: 840080435961

EMP 93-01847 Engine CouplerThis product replaces:840080465593, 14505A, 2Normalized SKU: 9301847UPC Code: 840080465593

EMP 93-01446 Engine CouplerThis product replaces:840080482484Normalized SKU: 9301446UPC Code: 840080482484

EMP 93-93210 Engine Coupler The engine coupler is the unsung hero of your sterndrive system. Sitting between the engine output shaft and the drive unit, it is the flexible connection that transfers power through the transom while absorbing the torsional shock that comes with hard acceleration, gear engagement, and the general demands of pushing a boat through the water. When it wears out, the symptoms are hard to miss: vibration at the helm, clunking when shifting into gear, and a roughness under load that no amount of prop tuning will fix. The EMP 93-93210 Engine Coupler is a direct replacement for MerCruiser Bravo I, Bravo II, and Bravo III sterndrive applications. Built to OEM specifications, it matches the original in dimensions, rubber compound, and load capacity, so it fits and performs exactly as the factory intended. This is a complete coupler assembly, not a rebuild kit, which means you are swapping the whole unit rather than trying to press out and replace individual components on a worn housing. Engine couplers have a finite service life, and the rubber insert in particular degrades over time from heat, oil exposure, and the constant flexing that comes with normal use. If yours has not been replaced in several years or you are chasing a vibration that has no other obvious cause, this is a very reasonable place to look. Replacing it proactively is far less painful than dealing with the damage a failed coupler can cause to the bellhousing and drive shaft. Compatibility and specs at a glance: Fits MerCruiser Bravo I, Bravo II, and Bravo III sterndrive applications Complete engine coupler assembly Absorbs torsional shock and transfers power between the engine and drive unit Built to OEM specifications by EMP Direct replacement, no modification required for listed applications Normalized SKU: 9393210UPC Code: 840080496573

ZF Industries 3311316007 Engine Coupler The ZF Industries 3311316007 is a precision-engineered engine coupling designed to provide reliable power transmission between your marine engine and transmission or drive system. This critical drivetrain component ensures smooth, efficient power transfer while accommodating minor misalignments and absorbing torsional vibrations that occur during engine operation. Manufactured to ZF's exacting specifications, this engine coupling is built from high-quality materials designed to withstand the demanding conditions of marine propulsion systems. The coupling provides the essential connection between engine and drive components while allowing for the slight angular and parallel misalignments that naturally occur in marine installations due to engine movement, thermal expansion, and hull flexing. The coupling's design incorporates flexible elements that dampen torsional vibrations and shock loads, protecting both the engine and transmission from damaging stress peaks that can occur during acceleration, deceleration, or sudden load changes. This vibration dampening also contributes to smoother, quieter operation and extended component life throughout your drivetrain. Proper coupling condition is essential for reliable drivetrain operation and preventing premature wear of expensive engine and transmission components. A worn or damaged coupling can lead to excessive vibration, noise, misalignment issues, and potential damage to connected components. Regular inspection during routine maintenance helps identify wear before it leads to more serious problems. Whether you're replacing a worn coupling during scheduled maintenance, rebuilding your drivetrain, or performing repairs, this genuine ZF Industries coupling provides the precision fit, durability, and reliable performance needed to keep your marine propulsion system operating smoothly. Key Features: Precision-engineered by ZF Industries High-quality construction for marine applications Accommodates minor misalignments Dampens torsional vibrations and shock loads Protects engine and transmission components Essential for smooth power transmission Normalized SKU: 3311316007

Mercury Marine 8M0098797 Engine Coupler The Mercury 8M0098797 Coupler Assembly is a genuine OEM component engineered to provide a critical connection between your engine and drive system. This precision-manufactured assembly ensures smooth power transfer from the engine to the propulsion system while accommodating the slight misalignments that naturally occur during operation. Built to Mercury Marine's exacting specifications, this coupler assembly features robust construction designed to withstand the high torque loads and vibrations inherent in marine propulsion systems. The assembly plays a vital role in protecting both your engine and drive components by absorbing shock loads and maintaining proper alignment during operation. Whether you're replacing a worn coupler or addressing drivetrain vibration issues, the 8M0098797 delivers the quality, precision fit, and reliability you expect from genuine Mercury Marine components. Using OEM parts ensures proper compatibility with your Mercury engine and drive system, maintains warranty coverage, and provides the durability needed for long-term, trouble-free operation. A properly functioning coupler assembly is essential for smooth power delivery, reduced vibration, and protection of critical drivetrain components. Normalized SKU: 8M0098797UPC Code: 745061946927

Velvet Drive 3007031001 Engine Coupler Velvet Drive 72L M01 Coupler #3007031001 OEM coupler assembly for Velvet Drive 72L M01 marine transmissions. Transfers engine torque to the transmission while accommodating minor shaft misalignment. Precision-engineered for reliable power transmission and smooth engagement. Direct replacement component restores proper drivetrain function and prevents vibration or slippage. Essential for transmission repair and rebuild applications on compatible marine powerplants. Normalized SKU: 3007031001

Mercury Marine 76850A2 Engine CouplerMercury Engine Coupler Crankshaft Stud Mount Mercruiser Sterndrive #76850A2Normalized SKU: 76850A2UPC Code: 745061178052

Globe 01-12-0910 Engine Coupler Globe 504HK Hardware Kit Normalized SKU: 01120910