Raw Water Pump Impeller Kit – Fits Crusader/PCM 5.0L-8.1L (Replaces RP061022, 18-8926)
This raw water pump impeller kit fits a range of Crusader and Pleasurecraft Marine (PCM) V8 engines from 2004 and newer that are equipped with a serpentine belt-driven water pump. It is engineered to meet or exceed OEM specifications for reliable cooling performance.
This is a direct replacement for several OEM and aftermarket part numbers, including PCM RP061022, Crusader R061022, Sierra 18-8926, and Mallory 9-45718.
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Installation Method: Direct replacement for serpentine belt-driven pumps.
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Core Component: Impeller made from high-performance, durable neoprene rubber.
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Complete Kit: Includes the impeller and all necessary O-rings for a full service.
Part Number Cross-Reference
Use this table to confirm equivalent part numbers across OEM and aftermarket brands.
| Brand |
Part Number |
| PCM |
RP061022 |
| Crusader |
R061022 |
| Sierra |
18-8926 |
| Mallory |
9-45718 |
Compatible Engine Models
Confirm your engine model/year in the table below.
Pleasurecraft Marine (PCM)
| 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 |
ZR409 |
409 |
4-Stroke |
2004 and up |
RP061022 |
Serpentine belt only |
Crusader
| Brand |
Model |
Rated HP |
Stroke |
Years |
OEM Part No. |
Notes |
Technical Specifications
| Specification |
Value |
| Product Type |
Raw Water Pump Impeller Kit |
| Installation |
Direct Replacement |
| 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) |
| Other Technical Attributes |
Material: High-performance neoprene rubber |
Package Contents
- 1 x Impeller (R061022)
- 1 x Housing O-Ring (R047242)
- 4 x Bolt O-Ring (R047243)
Installation Guide
- Close the raw water seacock to stop water flow to the engine.
- Loosen the serpentine belt to relieve tension on the raw water pump pulley.
- Remove the bolts securing the raw water pump cover plate.
- Carefully pry off the cover. Be prepared for some residual water to spill out.
- Note the rotational direction of the existing impeller's vanes before using pliers or an impeller puller to remove it.
- Thoroughly clean the inside of the pump housing, removing any debris or old impeller fragments.
- Lightly lubricate the new impeller and the inside of the housing with a water-based lubricant or dish soap.
- Install the new impeller with a twisting motion, ensuring the vanes are bent in the correct direction for engine rotation.
- Install the new housing O-ring and bolt O-rings into their respective grooves.
- Reinstall the pump cover and tighten the bolts evenly in a star pattern to ensure a proper seal.
- Re-tension the serpentine belt to the manufacturer's specification.
- Open the raw water seacock, start the engine, and immediately check for leaks and confirm water is flowing from the exhaust.
Troubleshooting & FAQ
Q: How do I confirm this fits my engine?
A: This impeller kit is specifically for Crusader and PCM engines from approximately 2004 and newer that use a serpentine belt-driven raw water pump. The most reliable way to confirm fitment is to match your existing part number to one listed in our cross-reference table (RP061022, R061022, 18-8926, 9-45718). Visually comparing your old impeller's dimensions to ours—especially the 2-inch width—is also a good verification step.
Q: What are the signs of a failing impeller?
A: The most common signs are an engine temperature that is higher than normal, an overheating alarm, or a noticeable reduction in water flow from the exhaust outlet. Damaged or worn vanes cannot move water effectively, leading to poor cooling.
Q: How often should I replace this impeller?
A: For preventative maintenance, it is recommended to inspect your impeller annually and replace it every 1-2 years or every 100-200 hours of operation, whichever comes first. If you frequently operate in sandy or silty water, more frequent replacement may be necessary.
Q: OEM vs. Aftermarket?
A: This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.
Q: How fast do you ship and how much does it cost?
A: We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.
Q: What is your warranty and return policy?
A: This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.
Important Notes
- Verify that the product images and specifications, particularly the impeller width of 2 inches, match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
- This product is an aftermarket replacement part and is not an OEM component. Brand names and part numbers are used for reference purposes only.
- Professional installation is recommended to ensure safety and optimal performance. Improper installation can lead to engine damage.
Why Choose JLM MARINE?
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Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
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Fast Global Shipping: Free delivery worldwide in 5–15 days.
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Direct from Manufacturer: Competitive pricing without compromising quality.