Volvo Penta Seawater Pump Screw Kit 21951302 (Set of 6)
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Volvo Penta Seawater Pump Screw Kit – Part No. 21951302
Part Number: 21951302
Brand: Volvo Penta
Kit Contents: 6 screws
Diagram Reference: Item 20 in the Volvo Penta raw-water pump schematic
Supersedes: 875756, 876060 (also cross-referenced with 875698, 876699, 876700)
Replaced By: Current – 21951302 is the active OEM number
Overview
This is a genuine Volvo Penta OEM screw kit containing 6 screws for use in seawater (raw-water) pump service. These fasteners secure the pump cover and internal components in the applicable Volvo Penta raw-water pump assembly. As OEM hardware, they are matched to the correct thread specification, material grade, and corrosion resistance required for the marine cooling environment.
System & Diagram Position
Raw-Water / Seawater Cooling System – Pump Assembly. This screw kit is listed at diagram reference 20 in the Volvo Penta seawater pump schematic. Confirm the exact pump assembly and diagram position against your engine's parts breakdown before ordering.
Kit Contents
- 6 x OEM seawater pump screws (Volvo Penta part 21951302)
Compatible Applications
- Volvo Penta D1-13, D1-20, D1-30
- Volvo Penta D2-40
- Volvo Penta MD2010, MD2020, MD2030, MD2040
- Volvo Penta 2001, 2002, 2003, 2003T
- Volvo Penta MD5, MD6, MD7, MD11, MD17
- Volvo Penta MD1B, MD2B, MD3B, AQD2B
- Volvo Penta AQ110, AQ115, AQ120, AQ130, BB115 gasoline engines
- Other Volvo Penta engines using the compatible seawater pump assembly – confirm by engine serial number and pump diagram
Serial Number & Fitment Notice
Always verify fitment by exact engine model, serial number, and the applicable Volvo Penta raw-water pump parts diagram before ordering. Seawater pump configurations vary across engine families and production runs — matching the correct pump assembly and diagram position is the safest approach.
Superseded Part Numbers
The following earlier references are associated with or superseded by 21951302:
- 875756
- 876060
- 875698 (related cross-reference – confirm against exact pump application)
- 876699 (related cross-reference – confirm against exact pump application)
- 876700 (related cross-reference – confirm against exact pump application)
Use 21951302 as the current OEM ordering number.
Service Interval
Volvo Penta recommends seawater pump service at regular intervals — typically annually or every 200–300 hours depending on engine model and operating conditions. Replace the pump screws any time the pump cover is removed, particularly if the original fasteners show corrosion, thread damage, or reduced clamping force. Reusing corroded marine fasteners is not recommended.
When to Replace
Replace this screw kit when the pump cover fasteners are corroded, seized, stripped, or no longer torquing correctly. It is also best practice to replace them during any full seawater pump rebuild or impeller service where the cover has been removed.
Installation Notes
Torque the screws to the Volvo Penta specification for the applicable pump assembly. Do not over-torque — pump covers on raw-water pumps are typically aluminum or composite and can crack if fasteners are over-tightened. Apply a light marine-grade anti-seize to the threads if recommended by the Volvo Penta service procedure for the engine being serviced.
Related Parts
- Volvo Penta Seawater Pump 3593655 – complete seawater pump assembly (special order)
- Volvo Penta Seawater Pump 3593654 – complete seawater pump assembly (special order)
Parts Desk Insights
This screw kit is most commonly needed during annual impeller or pump service on the D1, D2, and MD engine families. The most frequent issue is discovering a seized or corroded screw mid-job — having this kit on hand before starting pump service avoids a delay waiting for hardware. At the price point, it is worth including with any seawater pump or impeller order as a standard service item.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 1-3 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
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