Rareelectrical Engine Coupler Assembly Compatible With Mercruiser Alpha Gm V6 V8 3.0L 4.3L 5.0L 5.7L 6.2L 14" Flywheel Triangular Replaces 18643A5 18643A2

MERCRUISER 3.0L / 4.5L MPI APPLICATIONS: MerCruiser 3.0L 140HP GM 4-Cyl with 14" Flywheel (1999-2016) MerCruiser 4.5L MPI with Alpha Drive MERCRUISER GM V6 / V8 ALPHA APPLICATIONS: MerCruiser 4.3L V6 / 5.0L / 5.7L / 6.2L V8 Alpha Drive (1993-2015) OEM PART NUMBERS: Mercury: 18643A2 / 18643A5 / 18643A7 14" Flywheel Coupler — Alpha Sterndrive: Triangular 3-bolt engine coupler for MerCruiser Alpha sterndrives with GM engines using a 14" flywheel and 1-piece rear main seal. Not for 12-3/4" flywheel applications. ⚠️ IMPORTANT: Verify OEM part number and flywheel size before ordering.

• Compatible with Mercruiser. Please verify your OEM part number from your original unit to help ensure fitment.
• Replaces: Oem Part Numbers: / Mercury Mercruiser: 18643A5 / 18643A2 / 18643A7 / / Specifications: / Type: Triangular Engine Coupler Assembly / Style: Flywheel Mount — 14" Flywheel / Engines: Gm V6 4.3L, V8 5.0L / 5.7L / 6.2L, 3.0L (1999+), 4.5L Mpi / Rear Main Seal: 1-Piece (1993 & Newer Gm Engines) / Drive: Alpha One / Alpha One Gen Ii / Mr / Includes: Mounting Bolts & Washers / Condition: New / / Engine Applications: / Mercruiser 4.3L V6, 5.0L / 5.7L / 6.2L V8
• Applications: Mercruiser Gm V6 With Alpha Drive — 4.3L: / Mercruiser 4.3L / 4.3Lx V6 262Ci 175-205Hp With Alpha Drive (1993-2015) / / Mercruiser Gm V8 With Alpha Drive — 5.0L / 5.7L / 6.2L: / Mercruiser 5.0L / 5.0Lx V8 305Ci 200-230Hp With Alpha Drive (1993-2015) / Mercruiser 5.7L / 350 Mag V8 350Ci 260-320Hp With Alpha Drive (1993-2015) / Mercruiser 6.2L Mpi V8 With Alpha Drive (2002 & Up) / / Mercruiser 3.0L / 4.5L With 14" Flywheel: / Mercruiser 3.0L 140Hp Gm 4-Cyl With
• Applications: Gm 4-Cyl With 14" Flywheel (1999-2016) / Mercruiser 4.5L Mpi With Alpha Drive / / Note: Triangular Style For 14" Flywheel With 1-Piece Rear Main Seal Gm Engines....
• Engine Coupler Source: Aftermarket