Volvo Penta Stop Lug 3857954

Volvo Penta 3857954 is a genuine OEM stop lug used in Volvo Penta seawater pump and cooling-system applications. Volvo Penta’s official parts shop identifies part 3857954 simply as “stop lug,” and current catalog references place it in seawater pump and hoses / DPX375-A cooling system assemblies rather than as general hardware.

Key Features

• Genuine Volvo Penta OEM part number 3857954.
• Official Volvo Penta description: stop lug.
• Current schematic references place it in DPX375-A / Cooling System with object key 5.
• Current application references identify it as part of a raw water / seawater pump retention setup.
• Available current parts listings show an approximate weight of 0.0400 lb.

Engine Compatibility
Current fitment references connect Volvo Penta 3857954 to a wide range of Volvo Penta gasoline and sterndrive packages, including many 3.0, 4.3, 5.0, 5.7, 7.4, 8.1, 8.2, and DPX375/385/415/420 applications. Because seawater pump hardware can vary by engine family, pump arrangement, and production break, fitment should still be confirmed against the exact serial-numbered engine or drive.

Serial Number Fitment Notice
Always confirm 3857954 against the exact engine or drive serial number and the correct Volvo Penta parts diagram before ordering. Volvo Penta’s parts shop specifically directs customers to identify the exact engine, shield, or drive when locating the correct spare parts.

When This Part Needs Replacement
Replace this stop lug when the original part is worn, cracked, deformed, corroded, missing, or no longer supports the seawater pump correctly. Current application references describe it as part of the pump-retention setup that helps keep the pump secured in place, especially if pump or bearing failure occurs.

Installation Notes
Install only in the correct matched Volvo Penta application. Inspect the seawater pump, bracket, nearby fasteners, and surrounding hose and housing area before reassembly, and follow the correct Volvo Penta service information for the serial-numbered engine or drive. Because this part works as part of the pump-retention arrangement, correct fit and positioning are important. This last point is a practical inference from the cited application references.

Alternate/Superseded Part Numbers
Current sources reviewed list this part under active Volvo Penta number 3857954. One current cross-reference listing also associates it with REC3857954 as an aftermarket equivalent.

Parts Desk Insight
Small pump-retention parts like this are easy to overlook, but they help protect against bigger cooling-system problems if the pump assembly loosens or fails. On older Volvo Penta seawater pump setups, replacing worn support hardware during service can help avoid repeat labor and secondary damage around the pump area. The service-value point here is an inference based on the documented pump-retention role of 3857954.

Shipping: Ships same or next day for fast Canada wide shipping.