Neoprene Impeller – Fits Marine Engine Cooling Applications (Replaces CAT 7E-3022, Detroit 23502086)
Neoprene Impeller – Fits Marine Engine Cooling Applications (Replaces CAT 7E-3022, Detroit 23502086) 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.
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Neoprene Impeller – Fits Marine Engine Cooling Applications (Replac...
Neoprene Impeller – Fits Marine Engine Cooling Applications (Replaces CAT 7E-3022, Detroit 23502086) is backordered and will ship as soon as it is back in stock.
Product Details
This high-quality Jabsco 18786-0001 Neoprene Impeller is designed for marine engine cooling and industrial processing applications. It is suitable for engine cooling systems, bilge pumps, and general purpose water transfer duties, serving as a reliable replacement for specific CAT and Detroit Diesel marine engine pumps.
This component is a direct replacement for Jabsco 18786-0001, CAT 7E-3022, CAT 9Y5427, and Detroit Diesel 23502086.
- Material: Durable neoprene rubber compound suitable for fresh water, salt water, and mild chemicals.
- Installation: Designed for internal installation in compatible water pumps.
- Shaft Hub: Features a 1" (25mm) double-flat drive hub made from epoxy plastic for a secure fit.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number | Notes |
|---|---|---|
| Jabsco | 18786-0001 | Original Equipment Reference |
| CAT | 7E-3022 | Direct Replacement |
| CAT | 9Y5427 | Direct Replacement |
| Detroit Diesel | 23502086 | Direct Replacement |
Engine & Model Compatibility
Confirm your engine model/year in the table below. Note: This impeller fits various models from the listed brands. Always verify specs against your existing part.
| Brand | Model | Application | OEM Part No. | Notes |
|---|---|---|---|---|
| Jabsco | Various | Engine Cooling Pumps | 18786-0001 | Original equipment |
| CAT | Various | Marine Engine Cooling | 7E-3022, 9Y5427 | Direct replacement |
| Detroit Diesel | Various | Marine Engine Cooling | 23502086 | Direct replacement |
Technical Specs
- Product Type
- Flexible Neoprene Impeller
- Installation
- Internal replacement for water pumps
- Material
- Neoprene rubber
- Number of Blades/Fins
- 9
- Impeller Diameter
- 4-5/8" (117mm)
- Impeller Depth/Thickness
- 3-1/2" (89mm)
- Shaft Diameter
- 1" (25mm)
- Shaft Hub Type
- Double Flat Epoxy Plastic
- Temperature Range
- 45°F to 180°F (7°C to 82°C)
- Compatible Fluids
- Fresh water, salt water, mild chemicals
- Limited Oil/Fuel Exposure
- Yes (will swell with prolonged exposure)
What’s in the Box
- 1 x Flexible Impeller (Jabsco 18786-0001)
Installation Notes
- Always apply grease to a new impeller before installation. This lubricates the impeller, makes it easier to install, and provides protection during initial dry prime.
- After installing the new impeller, the pump may need up to 30 seconds to prime. Do not run the pump dry for longer, as the lack of liquid will damage the neoprene blades.
- Ensure all suction hose connections are airtight. Air leaks will prevent the pump from self-priming effectively.
Troubleshooting & FAQ
How do I know when to replace my impeller?
An impeller is at the end of its normal service life when pieces of its blades are missing, the blades are permanently and excessively curved, or there are cracks appearing about halfway up the blade height.
What are the signs of premature impeller failure?
Hard, polished, or cracked end faces indicate the pump has been run dry. Missing impeller blades suggest severe dry running. If pieces are missing from only the blade tips, this often points to cavitation (air leaks in the suction line).
What should I do before installing the new impeller?
Always grease the new impeller before installation using a suitable lubricant. This simplifies insertion into the pump housing and provides crucial protection for the impeller during the initial prime cycle before water flow is established.
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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