How to Match This Part
This is a flexible rubber raw water pump impeller. 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 31130-0061, and is also supplied against JMP 7420-01, DJ 09-42-1001, Kashiyama SP-130 and Yanmar 119593-42200.
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. Width (this listing is about 68 mm wide, not the 50 mm 17937-0001)
3. Drive type (this listing is a 12-spline hub, not a key drive)
4. Pump model (cast or labelled on the pump body)
Identify it physically before ordering. This impeller has ten vanes moulded in black neoprene around a machined brass 12-spline insert (Jabsco Profile CC). JMP 7420-01 is 65 mm diameter, 68 mm width and 15.8 mm (5/8 in.) bore. The hub face on the product photo is stamped 66 × 68.1. It is not interchangeable with 10-blade 50 mm spline 17937-0001 or 8-blade 50 mm spline 920-0001.
- ✓ Primary OEM: Jabsco 31130-0061
- ✓ Product form: 10-blade neoprene impeller, brass 12-spline insert, 68 mm width
- ✓ Fitment: part number, then width, then drive type
Part Number Cross-Reference
Use this table to confirm equivalent part numbers. Jabsco 31130-0061-P is a kit number. This listing is the impeller only.
| Type |
Brand |
Part Number |
Notes |
| OEM |
Jabsco Pump |
31130-0061 |
Primary reference. 10-blade neoprene, Profile CC, 12-spline |
| OEM |
JMP Pump |
7420-01 |
Bare impeller. JMP lists lubricant with the part; this listing is the impeller only |
| OEM |
DJ Pump |
09-42-1001 |
10-blade spline equivalent |
| OEM |
Kashiyama |
SP-130 |
Source-sheet Kashiyama number |
| OEM |
Yanmar |
119593-42200 |
Yanmar raw-water pump impeller |
| OEM |
Yanmar |
119593-42201 |
Source-sheet Yanmar number |
| OEM |
Yanmar |
119593-42202 |
Source-sheet Yanmar number |
| Other brand |
Industry interchange |
888-170 |
Source-sheet other-brand number |
| Other brand |
Industry interchange |
K-170 |
Source-sheet other-brand number for this SKU |
Compatible Engine Models
Confirm the original impeller number and measure about 68 mm width on a 12-spline hub. Do not assume every Yanmar 6LY or 8LV uses this part.
| Brand |
Engine / Pump Model |
Original Part No. |
Notes |
| Jabsco / JMP / DJ / Kashiyama |
Pumps specified for 31130-0061, 7420-01, 09-42-1001 or SP-130 |
31130-0061, 7420-01, 09-42-1001, SP-130 |
10-blade, 12-spline, 65 × 68 × 15.8 mm |
| Yanmar |
Engines whose parts list calls for 119593-42200, 119593-42201 or 119593-42202 |
119593-42200, 119593-42201, 119593-42202 |
Reported on 8LV320 / 8LV350 / 8LV370. Match the original number rather than a 6LY family dump |
Technical Specifications
| Specification |
Value |
| Part type |
Flexible rubber impeller, raw water pump |
| Number of blades |
10 |
| Impeller diameter (A) |
65 mm (JMP 7420-01). Hub stamp on the product photo reads 66 mm |
| Impeller width / depth (B) |
68 mm (JMP 7420-01). Hub stamp 68.1 mm |
| Shaft bore diameter (C) |
15.8 mm (5/8 in.) |
| Insert / drive type |
12-spline |
| Insert material |
Machined brass |
| Vane material |
Neoprene rubber (Jabsco Profile CC) |
Package Contents
This listing is for the impeller only, as shown in the impeller in the product images. Please refer to the part number cross-reference table to confirm component details.
Cover plate gasket, O-ring and lubricant are not included. Jabsco 31130-0061-P is a kit number that adds service extras.
Installation Guide
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1
Stop the engine, let it cool, and close the raw water seacock so water 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 downstream cooling circuit 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. Do not use petroleum-based grease, which attacks neoprene.
-
5
Align the 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 ten vanes lay over the same way.
-
6
Refit the cover plate with a serviceable gasket, tighten the screws evenly in a crisscross pattern, open the seacock, then start the engine and confirm a solid stream of cooling water and no leaks at the cover.
Note: Professional installation is recommended to ensure safety and optimal performance.
Troubleshooting & FAQ
How do I confirm this fits my engine?
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Start from the original impeller number. If the old part is Jabsco 31130-0061, JMP 7420-01, DJ 09-42-1001, Kashiyama SP-130 or Yanmar 119593-42200, and the brass hub is a 12-spline about 68 mm wide on a 65 mm 10-blade impeller, this part is the correct size.
Is this the same as Jabsco 17937-0001 / JMP 7426-01?
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No. 17937-0001 is also 10-blade 65 mm 12-spline, but it is 50 mm wide. This listing is 68 mm wide.
Will this fit every Yanmar 6LY or 8LV?
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No. Only engines whose parts list calls for 119593-42200, 119593-42201 or 119593-42202. Match the original number.
What are the signs that my impeller needs replacing?
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The usual symptoms are a weak or intermittent stream of cooling water, rising engine temperature, and vanes that are cracked, flattened, hardened or missing on inspection. Flexible impellers are a wear item; inspect on a fixed service interval rather than waiting for failure.
Is this a kit or just the impeller?
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This listing is the impeller only. Jabsco 31130-0061-P is a kit number that adds lubricant and a cover gasket. Photos of this SKU show the impeller on its own.
Is this an OEM or aftermarket part?
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This listing is an aftermarket replacement part and is 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.
How fast do you ship and how much does it cost?
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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.
What is your warranty and return policy?
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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 for unused items in original condition; please see our policy page or reach out for instructions.
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 a 10-blade, 65 mm 12-spline impeller, 68 mm wide. It will not fit 50 mm 17937-0001 or 8-blade 920-0001.
- Never run the pump dry. Even a few seconds without water will damage the neoprene vanes.
- Professional installation is recommended to ensure safety and optimal performance.
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.