Mercruiser engine coupler *GM *Chevy *Ford

6 bolt couplers for GM engines older than 1986 with 2 piece rear main seals and all V8 models
Couplings for replacing V6/V8 motors with 3-1/2 inch crankshaft bolt pattern to a newer 1 piece rear main seal engine with 3 inch bolt pattern
3 bolt engine coupler kits with triangular mounts including drive shaft yoke for MCM / Mag Alpha Mercruiser inboard motors
When installing a new or used coupler, you may need to use the engine alignment tool to line it up with the gimbal bearing
Help when to replacing your Mercruiser engine coupler
Click here for exploded view Mercruiser parts drawings

11500 Mercruiser engine chevy 2 piece rear main seal	P/N GLM 11500 Chevy / GM coupler OEM 76850A2 $187.95 Used with 1985 and older Chevy engines with 2 piece rear main seals 110 hp. 1537370 to 2044030 120 hp. 1537370 to 6229717 120 hp.(2.5 Liter) 6229718 and up 140 hp. 2508261 to 6229717 140 (3.0L) 6229718 and up 150 hp. 1666495 to 2048046 160 hp. 2048022 to 2770031 165 6 cylinder 2770032 and up 175 (4.3 Liter) B5257955 and up 185 hp. 229CID 6330183 and up 185 hp. 262CID A331455 and up 190 hp. 1564539 and up 898 198 hp. 4762210 and up 200 hp. 6218462 and up
Sierra 18-2171	P/N Sierra 18-2171 Chevy coupler for 1985 and older motors with 2 piece rear main seals OEM 76850A2 $242.00
11510 coupling	P/N GLM 11510 Ford engine coupler OEM 59826A3 $357.95 888 Ford 188 hp. 3108723 up 225 Ford and 225 S Ford 3385721 up 233 Ford 4173000 up
18-2173	P/N Sierra 18-2173 Coupler - All Ford Engines OEM 59826A3 $363.00
11520 Chevy coupler V6-V8 2 piece rear main seal	P/N GLM 11520 Chevy coupler OEM 14505A2 $314.95 Used with 1986 and newer V6 / V8 engines with 1 piece rear main seals 120 hp.(2.5L) 6229718 and up 140 (3.0L) 6229718 and up 185 hp. 262CID A331455 and up 200 hp. 6218462 and up 205 hp. 262CID A331455 - B527954 228 hp. 6218462 and up 230 (5.0L) 6218462 - B525981 260 (5.7L) 6218462 - B525981
18-2172	P/N Sierra 18-2172 Chevy coupler OEM 14525A2 $319.00
18-2413	P/N Sierra 18-2413 470 Coupler OEM 69354A2 $422.00 Works with Mercruiser 470 / 485 (1976 - 1982) 4208730 - 6218036
11530 GM V6-V8 triangular mount	P/N GLM 11530 Coupling with triangular mount OEM 118643A7 $305.95 Includes yoke drive shaft 305 MCM 1983 - 1993 350 MCM 1983 - 1993
11532 MCM 3 LITER GM 305-350-454	P/N GLM 11532 Coupling with triangular mount OEM 18643A5 $246.95 305 MCM 1999 and up 350 MCM 1999 and up
18-2195	P/N GLM 18-2195 470 Coupler with triangular mount including yoke OEM 12632A7 $356.00 Includes yoke 2.5L (1987 - 1989) OB531854 - OC853256, 140 3.0L (1983 - 1986) 6229718 - OB450800 3.0L (1987 - 1989) OB450801 - OC85658, 3.0LX (1990 - 1993) OC856559 - OF000000
18-2321 4 cylinder OEM 12632A6	P/N GLM 18-2321 470 Coupler with triangular mount / 12632A7 $272.00 *Does not include yoke