Description
The Sierra Marine 18-21752-1 Marine Series Engine Coupler is a 17-spline replacement coupler designed for select Volvo Penta and OMC sterndrive engine applications. It fits specified 4.3L, 5.0L and 5.7L engine applications across select model years from 1986 through 1998.
Designed for demanding marine environments, this Sierra Marine replacement coupler is built for durability and designed to meet or exceed the original equipment part it replaces.
Features
- Marine Series engine coupler
- Designed for select Volvo Penta and OMC sterndrive applications
- 17-spline configuration
- Compatible with specified 4.3L, 5.0L and 5.7L engines
- Silver finish
- Single coupler
- Designed for durability and long service life
- Designed to meet or exceed the original equipment part it replaces
Specifications
- Brand: Sierra Marine
- Manufacturer Part Number: 18-21752-1
- Series: Marine Series
- Product Type: Marine Engine Coupler
- Spline Count: 17
- Compatibility: Volvo Penta / OMC Sterndrive Engines
- Engine Sizes: 4.3L / 5.0L / 5.7L
- Color: Silver
- Quantity: 1
- Condition: Brand New
- Product: Genuine Sierra Marine Product
Compatibility
Designed for compatible Volvo Penta and OMC sterndrive engines in the following applications:
- 4.3L Engines: 1986–1998
- 5.0L Engines: 1986–1988 and 1998
- 5.7L Engines: 1986–1992, 1994 and 1996–1998
Important Fitment Information
Engine displacement alone is not sufficient to confirm compatibility. Verify the engine year, sterndrive configuration, 17-spline requirement and existing coupler before ordering.
Confirm Sierra Marine manufacturer part number 18-21752-1 is correct for the specific Volvo Penta or OMC sterndrive application.
Important
- 17-spline marine engine coupler.
- Supplied as a single coupler.
- Fits only the specified engine sizes and model years.
- Do not assume compatibility with years omitted from the application ranges.
- Additional installation hardware is not specified as included.
- Verify exact engine and sterndrive compatibility before installation.
Warranty
Backed by a limited 90-day manufacturer warranty.
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