Sierra (18-2171) Engine Coupler. This Engine Coupler fits all GM model engines with a "triangular" three-bolt coupler, excluding MR/Alpha/Bravo. An engine coupler links the engine to the outdrive, located outside the boat. The coupler is made of aluminum and rubber, and it isolates vibration between the engine and the outdrive.
Key Features:
- Meets or surpasses the quality of the original coupler
- Expertly crafted using excellent materials
- Designed to meet your exact specifications.
- An aftermarket engine coupler connects early Mercruiser GM engines to stern drives.
- Compatible with the following vehicle types: marine-personal-craft
Specifications:
- Brand: SeaStar Solutions
- SKU: 18-2171
- UPC: 030999311757
- Weight: 3.63 LBS
- Manufacturer Part Number (MPN): 118-2171
- Type: Couplings
- Overall diameter: 4-1/2"
- Bolt center diameter: 3-9/16"
- Overall length: 4-1/2"
- Mounting holes: 6
Sierra provides hundreds of quality parts to several OEM engine manufacturers and boat builders every day to suit today's high horsepower engine needs while also standing up to the severe marine environment.
For: All GM engines except MR/Alpha/Bravo with "Triangular", 3-bolt coupler
This product replaces:
- 38965A1, 38965A2, 47-2171, GLM11500, 32492A2, 32492A1, 32492A5, 32492A3, AP1446, 30999311757, 3099931175, 9-72502, 92-11500D
