> > > >
Flexible Rubber Water Pump Impeller 31500-0001 – 12 Blade Spline – Fits JMP 9100-01 SP-500
Flexible Rubber Water Pump Impeller 31500-0001 – 12 Blade Spline – Fits JMP 9100-01 SP-500
Flexible Rubber Water Pump Impeller 31500-0001 – 12 Blade Spline – Fits JMP 9100-01 SP-500
Flexible Rubber Water Pump Impeller 31500-0001 – 12 Blade Spline – Fits JMP 9100-01 SP-500
Flexible Rubber Water Pump Impeller 31500-0001 – 12 Blade Spline – Fits JMP 9100-01 SP-500
Flexible Rubber Water Pump Impeller 31500-0001 – 12 Blade Spline – Fits JMP 9100-01 SP-500
Flexible Rubber Water Pump Impeller 31500-0001 – 12 Blade Spline – Fits JMP 9100-01 SP-500
Flexible Rubber Water Pump Impeller 31500-0001 – 12 Blade Spline – Fits JMP 9100-01 SP-500
Flexible Rubber Water Pump Impeller 31500-0001 – 12 Blade Spline – Fits JMP 9100-01 SP-500
Flexible Rubber Water Pump Impeller 31500-0001 – 12 Blade Spline – Fits JMP 9100-01 SP-500
Flexible Rubber Water Pump Impeller 31500-0001 – 12 Blade Spline – Fits JMP 9100-01 SP-500
Flexible Rubber Water Pump Impeller 31500-0001 – 12 Blade Spline – Fits JMP 9100-01 SP-500

Flexible Rubber Water Pump Impeller 31500-0001 – 12 Blade Spline – Fits JMP 9100-01 SP-500

Vendor: JLM Marine
Availability: In Stock
Product Type: Flexible Rubber Impeller
$117.60
$117.60
Subtotal: $117.60

Free Shipping

Free standard shipping on all orders under 1 KG

Worry-Free Returns

Learn More.
Flexible Rubber Water Pump Impeller 31500-0001 – 12 Blade Spline – Fits JMP 9100-01 SP-500

Flexible Rubber Water Pump Impeller 31500-0001 – 12 Blade Spline – Fits JMP 9100-01 SP-500

$117.60
Description

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 12-spline shaft. It replaces the primary original part number Jabsco 31500-0001, and is also supplied against Jabsco 2999-0001, JMP 9100-01, DJ 08-17-1201, Kashiyama SP-500 and Yanmar 43600-400410 / 43600-400411.

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. Blade count (this listing is 12 blades)
3. Drive type (this listing is a 12-spline hub, about 36 mm bore, with two puller holes in the brass face)
4. Diameter and width (this listing is 128 mm diameter and 101.5 mm wide)

Identify it physically before ordering. JMP 9100-01, Jabsco 31500-0001 and DJ 08-17-1201 are 12-blade impellers on this envelope. JMP 9206 on the source sheet is the 6-blade impeller of the same 128 × 101.5 × 36 mm spline size. DJ 09-17-1301 uses a 13-blade suffix. The supplied photo is 12 blades, so this listing is the 12-blade impeller.

  • ✓ Primary OEM: Jabsco 31500-0001
  • ✓ Product form: 12-blade cooling-service rubber impeller, brass 12-spline insert, 128 × 101.5 mm
  • ✓ Fitment: part number, then 12 vs 6 vs 13 blades

Part Number Cross-Reference

Use this table to confirm equivalent part numbers. JMP 9100-01K kits include an O-ring and lubricant. This listing is the impeller only.

Type Brand Part Number Notes
OEM Jabsco 31500-0001 Primary reference. 12-blade, 12-spline, 128 × 101.5 × 36 mm
OEM Jabsco 2999-0001 Jabsco alternate on the same envelope
OEM JMP 9100-01 12-blade JMP equivalent
OEM JMP 9206 Excel JMP number. JMP 9206 is the 6-blade impeller of the same envelope
OEM DJ Pump 08-17-1201 12-blade equivalent (1201 suffix)
OEM DJ Pump 09-17-1301 Excel DJ number. 1301 suffix is 13 blades; sold form is 12
OEM Kashiyama SP-500 12-blade Kashiyama number
OEM Yanmar 43600-400410 Yanmar impeller number on this envelope
OEM Yanmar 43600-400411 Yanmar alternate on this envelope
Other brand Industry interchange K-500 Source-sheet other-brand number
Other brand Industry interchange 888-500 Source-sheet other-brand number

Compatible Engine Models

Confirm the original impeller number and count twelve blades on a 12-spline hub 101.5 mm wide. Do not assume a whole Yanmar or Mitsubishi engine family uses this impeller.

Brand Engine / Pump Model Original Part No. Notes
Jabsco / JMP / DJ / Kashiyama Pumps specified for 31500-0001, 9100-01, 08-17-1201 or SP-500 31500-0001, 9100-01, 08-17-1201, SP-500 12-blade, 12-spline, 128 × 101.5 × 36 mm
Yanmar Pumps specified for 43600-400410 or 43600-400411 43600-400410, 43600-400411 Match the impeller number, not an engine-family chart
JMP JPR-65LF, JPR-M65LF, JPR-MD65LF (pump models) 9100-01 JMP pump models that use 9100-01. Confirm 12 blades

Technical Specifications

Specification Value
Part type Flexible rubber impeller, raw water pump
Number of blades 12
Impeller diameter (A) 128 mm
Impeller width / depth (B) 101.5 mm
Shaft bore diameter (C) 36 mm
Insert / drive type 12-spline, two puller holes in the brass face
Insert material Machined brass
Vane material Flexible rubber (cooling service)

Package Contents

This listing is for the impeller only. JMP 9100-01K packs include an O-ring and lubricant; those extras are not included here. Please refer to the part number cross-reference table to confirm component details.

Cover gasket, O-ring and lubricant are not included.

Installation Guide

  1. 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. 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. 3 Note the spline orientation. Use the two puller holes in the brass face if the impeller is tight, then pull it straight off. Recover any broken vane pieces from the downstream cooling circuit before continuing.
  4. 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 cooling-service rubber.
  5. 5 Align the 12-spline 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. 6 Refit the cover plate with a serviceable gasket or O-ring, 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? +

Start from the original impeller number. If the old part is Jabsco 31500-0001 or 2999-0001, JMP 9100-01, DJ 08-17-1201, Kashiyama SP-500 or Yanmar 43600-400410 / 43600-400411, and it is a 12-blade 128 mm impeller 101.5 mm wide on a 12-spline hub, this listing is the correct size.

Is JMP 9206 the same impeller? +

No. JMP 9206 is the 6-blade impeller of the same 128 × 101.5 × 36 mm spline envelope. Excel lists it on this SKU. This listing is 12 blades.

Is DJ 09-17-1301 the same impeller? +

The 1301 suffix is 13 blades. DJ 08-17-1201 is the 12-blade number. The photo is 12 blades, so this listing is the 12-blade form.

Will this fit every Yanmar 6HA or Mitsubishi S6 engine? +

Do not assume a whole engine family. Match original impeller 43600-400410 / 43600-400411 or 31500-0001. Confirm 128 × 101.5 mm and a 12-spline hub with 12 blades.

Is this a kit? +

This listing is the impeller only. JMP 9100-01K includes an O-ring and lubricant. Excel kit contents are empty, so those extras are not included.

Is this an OEM or aftermarket part? +

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? +

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? +

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.
  • This listing is the 12-blade impeller. JMP 9206 on the same envelope is 6 blades. Count the vanes before ordering.
  • The impeller is supplied on its own. Cover seals and lubricant must be ordered separately if your service procedure requires them.
  • Never run the pump dry. Even a few seconds without water will damage the rubber 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.
Shipping

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.

About JLM Marine

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.

Search
Add to garage

Parts Finder

Use our Parts Finder to quickly locate the correct parts for your engine. Search by Make, HP, Stroke, Model, Year, and SN. Select only the fields available — you don’t need to fill all options (e.g., leave Year blank if not applicable).

Our database is currently being updated and expanded. More models, including Yamaha, Mercury, and Suzuki, are being verified and uploaded.
Search
Add to garage

Related Products

Example product title
$117.60
$117.60
Example product title
$117.60
$117.60
Example product title
$117.60
$117.60
Example product title
$117.60
$117.60
Example product title
$117.60
$117.60
Example product title
$117.60
$117.60

Recently Viewed Products