Yoke→Coupling Yoke Shaft→Mercruiser→Alpha One Gen 2 1998-up

Part # & Price Description
BPI28315

$82.95
Yoke Shaft 9.5 in for Mercruiser 814813A3 OMC Cobra 3850815 Volvo SX 3850815-6
Drive Shaft Yoke for most Sterndrives. Fits models with the clips in the inside of the U-Joints.

It is the front portion of the drive shaft assembly that goes into the coupler.
It fits Mercruiser with 9-1/2" shaft, OMC Cobra and SX drives, and Volvo Penta SX drives.

Mercury Marine part #s 814813A3, 59830A7
OMC part # 3850815
Volvo Penta original equipment part # 3850815-6; Mallory #9-72401
Sierra # 18-2146
Barr # MC-51-59830

Does not fit models with clips in the Yoke itself.
 
EMP93-93203

$249.95
Engine Coupler for Mercruiser 4.3L 5.0L 5.7L V8 1987 up AND 3.0L 1990 Up 18643A5
Engine Coupling or Coupler for Mercruiser Inboard Outboard applications using a 14 inch flywheel. Used on all V6 and V8 engines 1987 and newer and 3.0L engine 1990 and newer.
If you do not know what diameter your flywheel is you can look at your starter.
If you starter is held on with 1 Long and 1 Short bolt then your flywheel is 12.75 Inches in Diameter.
If you Starter is held on with 2 lonf bolts then you have the 14 Inch Flywheel which this part fits.
Replaces Mercruiser: 18643A5
 
SIE18-2175

$399.95
Engine Coupler Triangluar for Mercruiser V6 V8 1987 up 14 Inch Flywheel 18643A7
Engine Coupler Kit for Mercruiser V6 V8 and late model 4 Cylinder with 14 Inch Flywheel.

Includes Yoke Shaft to take advantage of the newer style coupling with the grease fitting.

If your model doesn't have the grease-able snout you see pictured, this will still replace your existing coupler with no issues.

The yoke shaft has an extra o-ring groove to hold the gease in the coupling.

Tech Tip:
If you do not know what diameter flywheel you have, look at your starter bolts. If you have 2 long bolts holding the starter on, then you have a 14 inch flywheel. If 1 long and 1 Short bolt, then you have the 12.75 Inch Flywheel.
  • Fits GM enignes with 14 Inch Flywheel.
  • Includes Yoke Shaft

 

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