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Flexible Rubber Water Pump Impeller 1210-0003 – 12 Blade Nitrile 57 mm 12-Spline – Fits Johnson 09-1027B-9
- $37.20
- $37.20
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How to Match This Part
This is a flexible nitrile rubber impeller for oil-resistant bilge, waste and diesel-transfer pumps. It sits inside the pump housing behind the cover plate and is driven by a 12-tooth splined shaft. It replaces the primary original part number Jabsco 1210-0003, and is also supplied against Johnson 09-1027B-9 and JMP 7100-02.
Match this part by checking your pump in this order:
1. Original impeller part number (stamped on the old impeller or listed in the pump section of your parts catalog)
2. Drive type (this listing is a 12-spline hub, not a key drive)
3. Compound (this listing is nitrile for oil, diesel and contaminated water, not the neoprene 1210-0001 cooling impeller)
4. Pump model (cast or labelled on the pump body)
Identify it physically before ordering. This impeller has twelve vanes moulded in black nitrile around a machined brass 12-spline insert. JMP 7100-02 is 57 mm diameter, 31.5 mm width and 16 mm (5/8 in.) bore. It is not interchangeable with neoprene 1210-0001 / 7100-01, or with the 12-blade key-drive JMP 7110-01 (57 × 20 × 12.7 mm).
- ✓ Primary OEM: Jabsco 1210-0003
- ✓ Product form: 12-blade nitrile impeller, brass 12-spline insert, 16 mm bore
- ✓ Fitment: part number, then drive type, then pump model
Part Number Cross-Reference
Use this table to confirm equivalent part numbers. Jabsco 1210-0003-P is the genuine retail kit. This listing is the impeller only.
| Type | Brand | Part Number | Notes |
|---|---|---|---|
| OEM | Jabsco Pump | 1210-0003 | Primary reference. Profile K, nitrile. 1210-0003-P is the kit number. 1210-0001 is the neoprene cooling impeller, not this listing |
| OEM | Johnson Pump (SPX Flow) | 09-1027B-9 | Nitrile 12-spline impeller. 09-1027B without the -9 suffix is the neoprene counterpart |
| OEM | JMP Pump | 7100-02 | JMP current 12-blade, 57 × 31.5 × 16 mm 12-spline bilge impeller. 7100-01 is neoprene, not this listing |
| Aftermarket | Ancor / CEF | J050407 / 500207 | JMP 7100-02 equivalent list |
Compatible Engine Models
This nitrile impeller is specified for bilge, waste and diesel-transfer pumps, not for Yanmar / Volvo Penta raw-water cooling pumps that call for neoprene 1210-0001 / 7100-01. Match the original impeller number and the 12-spline hub.
| Brand | Engine / Pump Model | Original Part No. | Notes |
|---|---|---|---|
| Jabsco Pump | Pumps specified for impeller 1210-0003 | 1210-0003 | Nitrile, Profile K, 12-spline, 16 mm bore |
| Johnson Pump | F5-size pumps specified for impeller 09-1027B-9 | 09-1027B-9 | Nitrile. Do not substitute 09-1027B (neoprene) |
| JMP Pump | Bilge / utility pumps specified for 7100-02 | 7100-02 | 57 × 31.5 × 16 mm, 12 blades, 12-spline |
Technical Specifications
| Specification | Value |
|---|---|
| Part type | Flexible rubber impeller, bilge / diesel-transfer pump |
| Number of blades | 12 |
| Impeller diameter (A) | 57 mm (2-1/4 in.) |
| Impeller width / depth (B) | 31.5 mm (1-1/4 in.) |
| Shaft bore diameter (C) | 16 mm (5/8 in.) |
| Insert / drive type | 12-tooth spline drive |
| Insert material | Machined brass |
| Vane material | Nitrile rubber (oil- and diesel-resistant) |
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 gaskets, O-rings and lubricant are not included. Jabsco 1210-0003-P is a kit number. If your service procedure calls for a new cover seal, order it separately against your pump model.
Installation Guide
- 1 Isolate the pump, let it drain, and close any seacock or supply valve so fluid cannot enter the boat while the housing is open.
- 2 Remove the cover plate screws and lift off the cover. Keep the screws and the old gasket or O-ring 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 impeller lubricant or glycerine to the bore and the new vanes before fitting.
- 5 Align the 12-tooth spline 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 twelve vanes lay over the same way.
- 6 Refit the cover plate with a serviceable gasket or O-ring, tighten the screws evenly in a crisscross pattern, restore the supply, then start 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 nitrile, 12-spline, 16 mm bore. It will not substitute for neoprene 1210-0001 or the 12-blade key-drive JMP 7110-01.
- Never run the pump dry. Even a few seconds without fluid 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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