Flexible Impeller Kit – Fits Jabsco, Johnson, Sherwood & Yanmar (Replaces 920-0001-P, 09-1028BT, 18200K)
Flexible Impeller Kit – Fits Jabsco, Johnson, Sherwood & Yanmar (Replaces 920-0001-P, 09-1028BT, 18200K) is backordered and will ship as soon as it is back in stock.
Couldn't load pickup availability
Worry-free returns
Worry-free returns
You may return most new, unopened items within 7 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Delivery and Shipping
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Flexible Impeller Kit – Fits Jabsco, Johnson, Sherwood & Yanmar...
Product Details
This Flexible Impeller Kit is an essential service part for marine engine raw water cooling pumps. It is designed for a wide range of Jabsco, Johnson/Evinrude, Sherwood, Volvo Penta, and Yanmar applications that utilize a 16mm (5/8") spline drive shaft. Built from durable neoprene with a brass insert, it provides a reliable and direct-fit solution for maintaining your engine's cooling system.
This kit serves as a direct replacement for numerous OEM and aftermarket part numbers, including Jabsco 920-0001-P, Johnson 09-1028BT-1, Sherwood 18200K, Yanmar 127610-42200, and Volvo Penta 877061-2.
- Installation Method: Direct aftermarket replacement
- Intended Environment: Marine raw/sea water cooling systems
- Key Material: High-quality neoprene with an internal brass spline insert
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number | Notes |
|---|---|---|
| Jabsco | 920-0001-P | Also replaces 17937-0001-P |
| Johnson | 09-1028B | Also replaces 09-1028BT-1 |
| Sherwood | 18200K | |
| Yanmar | 127610-42200 | Also replaces 127610-42270, 123325-42020, 120650-42310 |
| Volvo Penta | 801277 | Also replaces 877061-2, 825941, 875593, 3841697, 21951356 |
| Caterpillar | 7C3286 | Also listed as 7C-3286 |
| Perkins | 0460024 | Also replaces 24880031 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
This impeller is used in various engines from the brands below. Always cross-reference your OEM part number for the most accurate fitment.
| Brand | Model | Stroke | OEM Part No. | Notes |
|---|---|---|---|---|
| Yanmar | Various | 127610-42200 | Also 127610-42270, 123325-42020, 120650-42310 | |
| Volvo Penta | D4 Series | 4-Stroke | 877061-2 | Also 801277, 825941, 875593, 3841697, 21951356 |
| Volvo Penta | Sea Water Pump 3584062 | 4-Stroke | Used on various D4 engines | |
| Caterpillar | 7C3286 | Also 7C-3286 | ||
| Perkins | 0460024 | Also 24880031 |
The following Jabsco pumps use this impeller. Verify your pump model to confirm fit.
| Brand | Pump Model | OEM Part No. |
|---|---|---|
| Jabsco | 21140-2401, 21140-2601 | 920-0001-P |
| Jabsco | 23010-0131, 23430-1641 | 920-0001-P |
| Jabsco | 29600-1641, 29600-1741 | 920-0001-P |
| Jabsco | 29630-1001, 29630-1101 | 920-0001-P |
Technical Specs
- Product Type
- Flexible Water Pump Impeller Kit
- Installation
- Direct Replacement
- Drive Type
- Spline Drive (12-point)
- Material
- Neoprene with Brass Insert
- Impeller Diameter
- 65 mm (2.56")
- Impeller Width/Depth
- 50-50.2 mm (1.97-1.98")
- Shaft Diameter
- 16 mm (5/8")
- Application
- Sea/Raw Water Cooling Pumps
- Other Technical Attributes
- Internal spline drive with brass insert
What’s in the Box
Standard Kit:
- 1 x Flexible Impeller (Replaces Jabsco 920-0001-P/17937-0001-P)
- 1 x Gasket (if specified by pump model)
JMP Marine Kit (7400-01K):
- 1 x JMP Marine Flexible Impeller #7400-01
- 1 x Gasket (GAK0016)
- 1 x Gasket (GAK0062)
- 1 x O-Ring (ORG0013)
- 1 x O-Ring (ORG0022)
- 1 x O-Ring (ORG0067)
Installation Notes
Follow these general steps for impeller replacement. Refer to your engine's service manual for detailed instructions.
- Close the raw water intake seacock.
- Remove the screws from the water pump's end cover plate.
- Carefully grip the old impeller's hub with needle-nose pliers or an impeller puller tool and slide it out.
- Clean any debris or old gasket material from the inside of the pump housing and cover plate.
- Apply a light coat of water-resistant grease or dish soap to the inside of the pump housing and the new impeller.
- Insert the new impeller, rotating it in the direction of engine operation to correctly bend the blades.
- Install the new gasket or o-ring onto the pump body.
- Reinstall the cover plate and tighten the screws evenly.
- Open the seacock, start the engine, and immediately check for any leaks around the pump cover.
Troubleshooting & FAQ
How do I confirm this impeller fits my engine?
The best way to ensure fitment is to match the part number from your existing impeller or your engine's service manual to the numbers listed in our Part Number Matrix. If you cannot find a part number, compare the dimensions (Diameter, Width, Shaft Diameter, Drive Type) in our Technical Specs with your old part.
Some sources say this impeller has 8 blades, others say 10. Which is it?
The number of blades can vary between manufacturers for the same part number. Both 8-blade and 10-blade versions are designed to meet the required flow and pressure specifications for the listed applications. The key fitment dimensions are the diameter, depth, and shaft type, not the blade count.
What are the signs of a worn or failing impeller?
Common signs include engine overheating at idle or low speeds, reduced water flow from the exhaust outlet, visible cracks on the impeller blades, or blades that have become stiff and brittle. Finding pieces of black rubber in filters or heat exchangers is a definite sign of failure.
How often should I replace my raw water pump impeller?
As a general rule, impellers should be inspected annually and replaced every 1-2 years or every 100-200 engine hours, whichever comes first. Usage in sandy or silty water may require more frequent replacement.
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
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
