Volvo Penta Seawater Pump Wear Kit 21951382 – D13B / D13C MP Diesel
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Volvo Penta Seawater Pump Wear Kit – Part No. 21951382
Part Number: 21951382
Brand: Volvo Penta
Supersedes: 875574
Replaced By: Current – 21951382 is the active OEM number
Overview
This is a genuine Volvo Penta OEM seawater pump wear kit for D13B and D13C MP marine diesel engines. It contains the normal-wear components required to restore the seawater pump to factory specification during scheduled service or when pump performance has degraded. As an OEM kit, all components are matched to the original pump specifications for the D13 engine family.
System
Raw-Water / Seawater Cooling System – Seawater Pump Wear Components. This kit addresses the wear items within the seawater pump assembly, restoring proper raw-water circulation through the D13 engine cooling circuit.
Compatible Applications
- Volvo Penta D13B-A MP
- Volvo Penta D13B-B MP
- Volvo Penta D13B-C MP
- Volvo Penta D13B-D MP
- Volvo Penta D13B-G MP
- Volvo Penta D13B-H MP
- Volvo Penta D13B-J MP
- Volvo Penta D13B-K MP
- Volvo Penta D13B-L MP
- Volvo Penta D13B-M MP
- Volvo Penta D13C1-A MP
- Volvo Penta D13C2-A MP
- Volvo Penta D13C5-A MP
- Volvo Penta D13C6-A MP
- Other D13B/D13C variants where the seawater pump diagram calls for part number 21951382 – confirm by engine serial number
Serial Number & Fitment Notice
Seawater pump configurations can vary by engine variant, cooling arrangement, and production break within the D13 family. Always confirm part number 21951382 against your engine serial number and the correct Volvo Penta seawater pump parts diagram before ordering.
Superseded Part Numbers
Earlier part number 875574 has been updated to 21951382. Use 21951382 as the current OEM ordering number.
Service Interval
Volvo Penta recommends seawater pump service at regular intervals — typically annually or per the D13 engine service schedule. Replace the wear kit components whenever the pump is opened for inspection, or when cooling performance drops, pump noise increases, or inspection reveals worn or damaged internal components. Proactive replacement during scheduled service is more cost-effective than reactive replacement after a cooling failure.
When to Replace
Replace this wear kit when seawater pump service is due, when raw-water flow is reduced, when the pump shows signs of internal wear or leakage, or when the engine has experienced overheating that may have accelerated pump wear. Also replace when upgrading from the superseded 875574 kit.
Installation Notes
Confirm the exact application by engine serial number before installation. Inspect the seawater pump housing and adjacent cooling-system components during service — fitting new wear items into a worn or damaged housing will shorten service life. Follow the Volvo Penta D13 service procedure for the applicable pump assembly.
Technical FAQ
Q: What components are included in this wear kit?
A: Volvo Penta OEM wear kits for the D13 seawater pump typically include the impeller, shaft seal, O-rings, and gaskets required for a complete pump service. Confirm the exact kit contents against the Volvo Penta D13 seawater pump diagram for your specific engine variant.
Q: Is this the same as the impeller kit?
A: No. A wear kit is a more comprehensive service kit that includes the impeller plus additional wear components such as shaft seals and O-rings. If your pump only needs an impeller replacement, a standalone impeller kit may be sufficient — but if the pump has high hours or has been leaking, the full wear kit is the better choice.
Q: Can I use 875574 instead?
A: No. Part number 875574 has been superseded by 21951382. Order 21951382 as the current OEM reference.
Related Parts
- Volvo Penta Seawater Pump 24346050 – complete seawater pump assembly (special order)
- Volvo Penta Seawater Pump 24346053 – complete seawater pump assembly (special order)
- Volvo Penta Seawater Pump Screw Kit 22125080 – pump cover screws for seawater pump service
- Volvo Penta Seawater Pump Cover Screw Kit 21951334 – pump cover screws for D3/D4/D6/KAD/TAMD
Parts Desk Insights
This wear kit is the standard service item for D13B and D13C seawater pump overhauls. The most common issue is customers ordering only an impeller when the pump actually needs the full wear kit — on a high-hours D13, the shaft seal and O-rings are typically worn at the same time as the impeller, and skipping them means reopening the pump shortly after. If the pump has more than one season of service or has been leaking at the shaft, order the full wear kit rather than just the impeller. Always replace the pump cover screws at the same time if they show any corrosion.
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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