Water Pump Service Kit – Fits Volvo Penta AQ, MB, MD Series (Replaces 875698, 875698-3)
Water Pump Service Kit – Fits Volvo Penta AQ, MB, MD Series (Replaces 875698, 875698-3) is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
Delivery and Shipping
Orders are typically processed within 1–2 business days.
U.S. orders usually arrive within 6–15 days, depending on stock location and destination.
International delivery times may vary due to customs processing.
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Water Pump Service Kit – Fits Volvo Penta AQ, MB, MD Series (Replaces 875698, 875698-3) is backordered and will ship as soon as it is back in stock.
Product Details
This Water Pump Service Kit – Fits Volvo Penta AQ, MB, MD Series (Replaces 875698, 875698-3) is engineered for a range of Volvo Penta marine engines, including the AQ60-130 series, MB18/20, and MD3B/17C/17D models. It is suitable for both inboard and sterndrive applications, providing a reliable solution for engine cooling system maintenance.
The kit serves as a direct interchange for Volvo Penta part numbers 875698, 875698-3, and 21951348. It also cross-references with aftermarket equivalents AM AM22073 and Orbitrade ORB22073.
- Engineered for direct OEM replacement installation.
- Covered by a comprehensive 1-year aftermarket warranty.
- Kit includes essential components for a complete pump service.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Volvo Penta | 875698 |
| Volvo Penta | 875698-3 |
| Volvo Penta | 21951348 |
| AM | AM22073 |
| Orbitrade | ORB22073 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
This kit is compatible with the following Volvo Penta engine models.
| Brand | Model | OEM Part No. |
|---|---|---|
| Volvo Penta | AQ60 | 875698, 875698-3 |
| Volvo Penta | AQ90 | 875698, 875698-3 |
| Volvo Penta | AQ95 | 875698, 875698-3 |
| Volvo Penta | AQ100 | 875698, 875698-3 |
| Volvo Penta | AQ105 | 875698, 875698-3 |
| Volvo Penta | AQ110 | 875698, 875698-3 |
| Volvo Penta | AQ115 | 875698, 875698-3 |
| Volvo Penta | AQ120 | 875698, 875698-3 |
| Volvo Penta | AQ130 | 875698, 875698-3 |
| Volvo Penta | MB18 | 875698, 875698-3 |
| Volvo Penta | MB20 | 875698, 875698-3 |
| Volvo Penta | MD3B | 875698, 875698-3 |
| Volvo Penta | MD17C | 875698, 875698-3 |
| Volvo Penta | MD17D | 875698, 875698-3 |
Technical Specs
- Product Type
- Water Pump Service/Repair Kit
- Installation
- Direct OEM replacement
- Product Dimensions
- 16.0" L × 11.0" W × 7.0" H
- Warranty
- 1 year (aftermarket)
What’s in the Box
- 1 x Water Pump Impeller (21951348)
Installation Notes
- Disconnect the vessel's battery and close the engine's water inlet seacock.
- Place a suitable container under the water pump to catch any drained water or coolant.
- Loosen and remove the drive belt. Detach the water intake and outlet hoses from the pump.
- Unscrew the fasteners and carefully remove the existing water pump cover.
- Extract the old impeller, gaskets, and any seals. Thoroughly clean all mating surfaces to ensure a proper seal.
- Install the new gaskets/seals and insert the new impeller. A light coating of glycerin or impeller lubricant can ease installation.
- Reattach the pump cover and tighten the fasteners to the manufacturer's specified torque in a cross pattern.
- Reconnect the hoses and reinstall the drive belt, adjusting to the correct tension.
- Open the water inlet seacock, reconnect the battery, start the engine, and immediately check for any leaks and verify correct water flow from the exhaust.
Troubleshooting & FAQ
How do I know if this kit fits my Volvo Penta engine?
This kit is specifically designed for Volvo Penta AQ60-130 series, MB18/20, and MD3B/17C/17D models. To ensure compatibility, check that your engine model is listed in our "Engine & Model Compatibility" table and that your existing part number matches one of the equivalents in the "Part Number Matrix."
What are the signs of a failing water pump impeller?
Common symptoms of a worn or failed impeller include the engine overheating at idle or low speeds, a noticeable reduction or complete loss of water flowing from the exhaust, and, upon visual inspection, findings of cracked, brittle, or missing vanes on the old impeller.
ragHow often should the water pump impeller be replaced?
As a key part of preventative maintenance, we recommend inspecting the impeller annually. It should be replaced every 1 to 2 years or every 200 hours of engine operation, whichever comes first. Replacement frequency may need to increase based on operating conditions, such as heavy use in saltwater or sediment-rich water.
Can I just replace the impeller instead of using the whole kit?
While the impeller is the most common component to fail, this service kit includes the necessary gaskets and/or O-rings required for a complete repair. Replacing these seals at the same time is critical to prevent leaks and ensure a durable, reliable water pump service.
OEM vs. Aftermarket?
This listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.
Shipping speed & cost
We ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.
Warranty & returns
Covered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused & in original condition). See our policy page or reach out for instructions.
Safety & Important Info
- Verify images/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.
- This is an aftermarket replacement, not an OEM component.
- Professional installation is recommended for safety and performance.
About Sea Sierra
- Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.
- Fast Global Fulfillment — Free standard delivery to most regions in 5–15 days.
- Manufacturer-Direct Value — Fair pricing without compromising on materials or QC.
Payment & Security
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