Volvo Penta Nut Retainer 22746891
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Volvo Penta Nut Retainer — OEM Part 22746891
The Volvo Penta Nut Retainer 22746891 is a genuine OEM hardware component used in selected Volvo Penta gasoline engine flywheel housing and flexible coupling assemblies. The retainer is positioned at the flywheel-to-coupler connection, working with the flywheel-to-coupler mounting studs to secure the assembly. It replaces the earlier Volvo Penta lock nut 3853273 in this application.
Part Details
- Part Number: 22746891
- Brand: Volvo Penta
- Official Product Type: Nut Retainer
- Supersedes: 3853273 (previous Volvo Penta lock nut)
- System: Flywheel Housing / Flexible Coupling Assembly
- Diagram Position: Flywheel-to-coupler stud mounting location (same position as earlier 3853273)
- Sold: Individually
- Approximate Weight: 0.05 kg
Compatible Applications
Documented fitment includes selected Volvo Penta gasoline engines. Always confirm by complete engine model, year, and flywheel-housing diagram before ordering:
- 4.3L gasoline engines (flywheel housing diagram — same position as 3853273)
- 7.4L gasoline engines (flywheel and coupler mounting hardware)
- 8.2L gasoline engines
Fitment Notice: Volvo Penta used different coupler and flywheel hardware arrangements across its gasoline engine range. Confirm the exact engine model, year, and flywheel-housing diagram before ordering.
When This Part Needs Replacement
Replace the nut retainer if any of the following are found during inspection or service:
- Visible damage or distortion to the retainer
- Corrosion that compromises the retaining function
- Stripped or damaged threads
- Retainer removed during flywheel or coupler service and no longer serviceable
- Inability to provide secure retention at the flywheel-to-coupler connection
Installation Notes
Inspect the related flywheel and coupling mounting hardware during service. Components typically found in this assembly include:
- Flywheel-to-coupler studs 3853274
- Flexible coupling
- Flange and hub components
- Associated washers and retaining hardware
Tighten all flywheel and coupler hardware to the applicable Volvo Penta service specification for your engine model.
Superseded Part Numbers
- 22746891 — Current Volvo Penta nut retainer (this part)
- 3853273 — Previous Volvo Penta lock nut, superseded by 22746891
Parts Desk Insights
The 22746891 is a flywheel and flexible-coupling mounting hardware component — it is not a propeller nut retainer or gearcase hardware. The key identification point is its location at the flywheel-to-coupler stud connection in the flywheel housing assembly. This is a small, low-cost part that is easy to overlook during service, but it plays an important role in securing the flywheel-to-coupler connection. If you’re servicing the flywheel or flexible coupling on a 4.3L, 7.4L, or 8.2L Volvo Penta gasoline engine, it’s worth replacing this retainer as a matter of course rather than reusing the old one.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
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If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
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