Volvo Penta Seawater Pump Screw Kit 22125080

Part Number: 22125080
Brand: Volvo Penta
Official Product Type: Seawater Pump Screw Kit – 4-Piece
System: Raw Water / Seawater Cooling
Diagram Position: Position #4 in Volvo Penta seawater pump parts diagram
Supersedes: 3587445 (individual screw reference)

Overview

The Volvo Penta 22125080 is a genuine OEM 4-screw kit for Volvo Penta seawater pump assemblies on select gasoline sterndrive and inboard engines. The screws secure the pump cover to the housing, maintaining proper clamping around the impeller, O-ring, and sealing ring. This kit replaces the older individual screw reference 3587445 in applicable pump diagrams.

This is a small but important service item — corroded or stripped pump cover screws are a common cause of impeller service complications and pump leaks.

Compatible Applications

• Volvo Penta 5.0GXi-A
• Volvo Penta 5.7Gi-A
• Volvo Penta 5.7GXi-A, 5.7GXi-B
• Volvo Penta 5.7GiI-A, 5.7GSiI-A
• Volvo Penta 5.7GXiI-A, 5.7GXiI-B
• Other Volvo Penta gasoline sterndrive and inboard applications using compatible seawater pump assemblies (21214596, 21214599, 21214601, 21427730)

Seawater pump hardware fitment depends on the exact engine model, pump assembly, pump housing, and serial number range. Confirm compatibility using your engine serial number and parts diagram before ordering.

Kit Contents

• 4 x seawater pump cover screws

Serial Number & Fitment Notice

Confirm the correct screw kit by matching your engine serial number and seawater pump assembly number to the applicable Volvo Penta parts diagram. Where the older individual screw 3587445 is shown, 22125080 is the current kit replacement in supported diagrams.

Superseded Part Numbers

• 3587445 — previous individual screw reference, replaced by kit 22125080 in applicable diagrams
• 22125080 — current OEM screw kit

Dimensions & Weight

• Approximate weight: 0.018 kg (4-screw kit)
• Approximate package dimensions: 3 in. × 1 in. × 0.25 in.

Service Interval

Inspect the pump cover screws at every impeller service. Replace if any screw shows corrosion, rounding, stripping, or difficulty tightening. Replacing the screws during impeller service is low-cost insurance against a stripped pump cover on the next service.

Related Parts

• Volvo Penta Raw Water Pump Impeller Kit 21951348 – D4/D6 — impeller service kit commonly replaced alongside these screws
• Volvo Penta Raw Water Pump Impeller Kit 21951352 – D4/D6/IPS — alternate impeller kit for IPS applications

Related pump assembly components (not currently listed individually): pump housing 3858115, O-ring 3858938, sealing ring 827247.

Technical FAQ

Q: How many screws are in this kit?
A: 4 screws per kit, as shown at diagram position #4 in the applicable Volvo Penta seawater pump parts diagram.

Q: Does 22125080 replace 3587445?
A: Yes, in supported seawater pump diagrams. 22125080 is the current kit reference that supersedes the older individual screw 3587445.

Q: Should I replace the screws every time I do an impeller service?
A: Inspect them each time. If they show any corrosion, rounding, or difficulty removing, replace them. The cost of the screw kit is minimal compared to the labor of dealing with a stripped pump cover on the next service.

Q: What other parts should I replace at the same time?
A: At minimum, inspect the impeller, O-ring, pump housing sealing surfaces, and sealing ring. Replace any components that show wear, cracking, or corrosion while the pump is apart.

Parts Desk Insights

This kit is almost always tied to impeller or seawater pump service. The most common issue is customers skipping the screws and then dealing with stripped or seized fasteners on the next impeller change. Recommend adding the screw kit to any impeller service order for these engine families — it is a low-cost add-on that prevents a frustrating repeat job.