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Flexible Rubber Water Pump Impeller 920-0003 – 8 Blade Nitrile 65 mm Spline Drive – Fits JMP 7400-02
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How to Match This Part
This is a flexible rubber impeller for bilge and oil-contaminated transfer duty. It sits inside the pump housing behind the cover plate and is driven by a splined shaft. It replaces the primary original part number Jabsco 920-0003, and is also supplied against Johnson 09-1028B-9, JMP 7400-02 and DJ 001-0801N.
Match this part by checking your engine in this order:
1. Original impeller part number (stamped on the old impeller or listed in the pump section of your parts catalog)
2. Compound (this listing is nitrile, not neoprene 920-0001)
3. Drive type (this listing is a 12-spline hub)
4. Pump model (cast or labelled on the pump body)
Identify it physically before ordering. This impeller has eight vanes moulded in black nitrile around a machined brass spline insert. JMP 7400-02 is 65 mm diameter, 50 mm width and 16 mm (5/8 in.) bore. It is the same size as neoprene Jabsco 920-0001 / JMP 7400-01, but it is not interchangeable for engine cooling. Nitrile is for bilge and oily water; neoprene is for raw-water cooling.
- ✓ Primary OEM: Jabsco 920-0003
- ✓ Product form: 8-blade nitrile impeller, brass 12-spline insert, 50 mm width
- ✓ Fitment: part number, then compound, then drive type
Part Number Cross-Reference
Use this table to confirm equivalent part numbers. Jabsco 920-0003-P is a kit number. This listing is the impeller only.
| Type | Brand | Part Number | Notes |
|---|---|---|---|
| OEM | Jabsco Pump | 920-0003 | Primary reference. Nitrile. 920-0003-P is the kit number |
| OEM | Johnson Pump (SPX Flow) | 09-1028B-9 | Nitrile F7 / F7B pump impeller. Not neoprene 09-1028B |
| OEM | JMP Pump | 7400-02 | Bilge / nitrile compound. Not cooling 7400-01 |
| OEM | DJ Pump | 001-0801N | Nitrile equivalent of 001-0801 |
| Other brand | Industry interchange | K-112N | Source-sheet other-brand number |
| Other brand | Industry interchange | 888-112N | Source-sheet other-brand number for this SKU |
Compatible Engine Models
This is a pump impeller, not an engine-family part. Confirm the original nitrile number. Do not use the cooling fitment from neoprene 920-0001 / JMP 7400-01 (Yanmar, CAT, Onan, Volvo Penta D4).
| Brand | Engine / Pump Model | Original Part No. | Notes |
|---|---|---|---|
| Jabsco | 11860-0003 / 11860-0005, 2300-9003 / 2300-9005, 777-0003 / 777-9003 (nitrile service) | 920-0003 | 8-blade nitrile, 12-spline, 65 × 50 × 16 mm |
| Johnson Pump | F7 / F7B pumps specified for 09-1028B-9 | 09-1028B-9 | Nitrile compound |
| JMP | Bilge pumps specified for 7400-02 | 7400-02 | Not raw-water cooling 7400-01 |
Technical Specifications
| Specification | Value |
|---|---|
| Part type | Flexible rubber impeller, bilge / oil-contaminated transfer |
| Number of blades | 8 |
| Impeller diameter (A) | 65 mm (2-9/16 in.) |
| Impeller width / depth (B) | 50 mm JMP / 51 mm (2 in.) Jabsco |
| Shaft bore diameter (C) | 16 mm (5/8 in.) |
| Insert / drive type | Spline drive (12 per JMP 7400-02) |
| Insert material | Machined brass |
| Vane material | Nitrile rubber |
Package Contents
This listing is for the impeller only, as shown in the product images. Please refer to the part number cross-reference table to confirm component details.
Cover plate gasket, spline seal and lubricant are not included. Jabsco 920-0003-P adds those service parts. JMP 7400-02 is sold as the impeller with lubricant only.
Installation Guide
- 1 Stop the engine or pump, and isolate the suction so water or oily fluid cannot enter the boat while the pump is open.
- 2 Remove the cover plate screws and lift off the cover. Keep the screws and the old gasket together so you can compare the seal size when reassembling.
- 3 Note the spline orientation, then grip the brass insert and pull the old impeller straight off. Recover any broken vane pieces from the discharge line before continuing.
- 4 Clean the housing bore and the wear plate, and inspect them for scoring. Apply a marine-grade impeller lubricant, glycerine or soapy water to the bore and the new vanes.
- 5 Align the splines in the brass insert with the pump shaft, then press the impeller in while turning the shaft in the normal direction of rotation so all eight vanes lay over the same way.
- 6 Refit the cover plate with a serviceable gasket, tighten the screws evenly in a crisscross pattern, restore suction, then run the pump and confirm flow and no leaks at the cover.
Note: Professional installation is recommended to ensure safety and optimal performance.
Troubleshooting & FAQ
Important Notes
- Verify that the product images and specifications 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.
- The impeller is supplied on its own. Cover seals and lubricant must be ordered separately if your service procedure requires them.
- This is the nitrile 8-blade 65 mm 12-spline impeller. It will not replace neoprene cooling 920-0001 / JMP 7400-01.
- Never run the pump dry. Even a few seconds without liquid will damage the vanes.
- Professional installation is recommended to ensure safety and optimal performance.
Why Choose JLM MARINE?
- Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
- Fast Global Shipping: Free delivery worldwide in 5–15 days.
- Direct from Manufacturer: Competitive pricing without compromising quality.
We can ship to virtually any address in the world with free shipping available for most regions.
For our typical US and Canadian customers , our shipping timeframes are as follows:
- Amazon FBA: orders will be delivered within 1-5 business days after placing the order (during certain special periods such as major promotions, Christmas, etc., the delivery time of Amazon FBA may be affected).
- US warehouse shipment: orders will be delivered within 5 days after placing the order.
- China warehouse shipment: orders will be delivered about 12 days after placing the order.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
Founded in 2002, JLM Marine has established itself as a dedicated manufacturer of high-quality marine parts, based in China. Our commitment to excellence in manufacturing has earned us the trust of top marine brands globally.
As a direct supplier, we bypass intermediaries, which allows us to offer competitive prices without compromising on quality. This approach not only supports cost-efficiency but also ensures that our customers receive the best value directly from the source.
We are excited to expand our reach through retail channels, bringing our expertise and commitment to quality directly to boat owners and enthusiasts worldwide.
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