Raw Water Pump Impeller Kit – Fits Crusader/PCM 5.0L-8.1L (Replaces RP061022, 18-8926)
Raw Water Pump Impeller Kit – Fits Crusader/PCM 5.0L-8.1L (Replaces RP061022, 18-8926) is backordered and will ship as soon as it is back in stock.
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Worry-free returns
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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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Raw Water Pump Impeller Kit – Fits Crusader/PCM 5.0L-8.1L (Replaces...
Raw Water Pump Impeller Kit – Fits Crusader/PCM 5.0L-8.1L (Replaces RP061022, 18-8926) is backordered and will ship as soon as it is back in stock.
Product Details
This Raw Water Pump Impeller Kit is a direct-fit replacement for select Crusader and Pleasurecraft Marine (PCM) V8 engines from approximately 2004 and newer. It is specifically designed for 5.0L, 5.7L, 6.0L, and 8.1L models equipped with a serpentine belt-driven raw water pump.
It serves as a direct cross-reference for PCM RP061022, Crusader R061022, Sierra 18-8926, and Mallory 9-45718.
- Engineered for direct replacement installation.
- Made from high-performance neoprene rubber for durability and reliable performance.
- The kit includes one impeller, one housing O-ring, and four bolt O-rings for a complete service.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket brands.
| Brand | Part Number |
|---|---|
| PCM | RP061022 |
| Crusader | R061022 |
| Sierra | 18-8926 |
| Mallory | 9-45718 |
Engine & Model Compatibility
Confirm your engine model and year in the table below.
For Pleasurecraft Marine (PCM): Fits V8 models from 2004 and up with serpentine belt-driven pumps.
For Crusader: Fits V8 models from 2005 and up with serpentine belt-driven pumps.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| PCM | Excalibur 330 | 330 | 4-Stroke | 2004–and up | RP061022 | Serpentine belt only |
| PCM | EX343 | 343 | 4-Stroke | 2004–and up | RP061022 | Serpentine belt only |
| PCM | ZR6 | 4-Stroke | 2004–and up | RP061022 | Serpentine belt only | |
| PCM | ZR409 | 409 | 4-Stroke | 2004–and up | RP061022 | Serpentine belt only |
| PCM | 5.0L Pro Sport | 4-Stroke | 2004–and up | RP061022 | Serpentine belt only | |
| Crusader | 5.7L | 4-Stroke | 2005–and up | R061022 | Serpentine belt only | |
| Crusader | 6.0L | 4-Stroke | 2005–and up | R061022 | Serpentine belt only | |
| Crusader | 8.1L | 4-Stroke | 2005–and up | R061022 | Serpentine belt only |
Technical Specs
- Product Type
- Raw Water Pump Impeller Kit
- Installation
- Direct Replacement
- Material
- High-performance neoprene rubber
- Dimensions
- Impeller Diameter: 2-1/4" (57.15 mm), Width: 2" (50.8 mm), Shaft: 5/8" (15.875 mm)
- Weight
- 0.16 kg (0.35 lb)
- Warranty
- Varies by manufacturer (typically 1 year)
What’s in the Box
- 1 x Impeller (R061022)
- 1 x Housing O-Ring (R047242)
- 4 x Bolt O-Ring (R047243)
Installation Notes
- Disconnect the negative battery cable for safety.
- Close the raw water intake seacock to prevent water from entering the vessel.
- Loosen the tension on the engine's serpentine belt to allow for pump access.
- Remove the bolts securing the raw water pump's cover plate. Keep track of them.
- Note the rotational direction of the existing impeller's vanes before removing it with pliers or an impeller puller.
- Remove the old gasket or O-ring from the pump body and cover plate.
- Thoroughly clean the inside of the pump housing, ensuring no old impeller pieces remain.
- Lightly lubricate the new impeller and O-rings with a water-based lubricant or dish soap. Do not use petroleum grease.
- Install the new impeller, bending the vanes in the same direction as the old one was installed.
- Place the new O-rings, reinstall the cover plate, and tighten the bolts in a crossing pattern to ensure an even seal.
- Re-tension the serpentine belt to the manufacturer's specification.
- Open the seacock, reconnect the battery, start the engine, and immediately check for any water leaks around the pump housing.
Troubleshooting & FAQ
How do I know if this impeller will fit my engine?
This impeller is designed for Crusader (2005+) and PCM (2004+) V8 engines that use a serpentine belt-driven raw water pump. The key identifier is the serpentine belt system, as older models used V-belts. Always cross-reference your existing part number with those listed in our Part Number Matrix.
What are the common signs of a failing impeller?
The most common symptoms include engine overheating at idle or higher RPMs, a noticeable reduction in water flow from the exhaust outlet, or a high-temperature alarm on your dashboard. Fragments of a failed impeller can also clog downstream cooling passages.
How often should I replace my raw water pump impeller?
As a preventative maintenance item, it is recommended to replace the impeller annually or every 100-200 hours of engine operation, whichever comes first. Impellers can dry out and become brittle over time, even with low usage.
Is it difficult to replace the impeller myself?
For those with moderate mechanical experience, it is a manageable task that typically takes under an hour. However, access to the pump can be tight on some boat models. If you are not comfortable performing the work, professional installation is recommended to prevent damage.
What is the difference between OEM and this aftermarket part?
This listing is an aftermarket replacement (not OEM). It is built to OEM-level specifications with comparable high-performance neoprene materials. Our parts are manufactured in an ISO 9002 facility and are batch-inspected to ensure quality and consistency.
What are your shipping speed and cost?
We ship worldwide quickly—typical transit is 5–15 days. Standard shipping is free to most locations; expedited options will appear at checkout if they are available for your region.
What is the warranty and return policy?
This part is covered by a 1-year warranty against manufacturing defects under normal marine use. If you encounter an issue, please contact our support team with your order details. Returns are accepted within our standard window for unused items in their 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.
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