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Add to CartSierra replacement engine coupler for OMC and Volvo Penta engines. Sierra aftermarket parts are manufactured to meet or exceed OEM requirements.
Fits:
Interchangeable With:
What is the Sierra 18-21752-1 Engine Coupler for OMC, Volvo used for?
The Sierra 18-21752-1 Engine Coupler is a replacement engine coupler for specified OMC and Volvo Penta applications. It features 17 splines and is manufactured to meet or exceed OEM requirements.
Which engines does the Sierra 18-21752-1 Engine Coupler fit?
The Sierra 18-21752-1 fits 4.3L engines from 1986–1998, 5.0L engines from 1986–1988 and 1998, and 5.7L engines from 1986–1992, 1994, and 1996–1998. Verify your engine displacement and model year before ordering.
How many splines does the Sierra 18-21752-1 Engine Coupler have?
The Sierra 18-21752-1 Engine Coupler has 17 splines. Confirm that your application requires a 17-spline engine coupler before purchasing.
Is the Sierra 18-21752-1 Engine Coupler compatible with OMC and Volvo Penta?
Yes. The product description identifies the Sierra 18-21752-1 as a replacement engine coupler for OMC and Volvo Penta engines. The listed applications include specific 4.3L, 5.0L, and 5.7L engine model years.
What part numbers are interchangeable with the Sierra 18-21752-1 Engine Coupler?
The Sierra 18-21752-1 is interchangeable with OMC Stern Drive part numbers 984290, 986120, 3853917, and 3858437. It is also interchangeable with Volvo Penta part numbers 3858437 and 3858437-1.
Does the Sierra 18-21752-1 Engine Coupler meet OEM requirements?
Sierra states that its aftermarket parts are manufactured to meet or exceed OEM requirements. The 18-21752-1 is identified as a replacement engine coupler with 17 splines for the specified OMC and Volvo Penta applications.
California Residents: 
WARNING
Cancer and Reproductive Harm -
P65Warnings.ca.gov
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