Flexible Rubber Water Pump Impeller 836-0001 – 9 Blade Neoprene 95 mm Spline – Fits Yanmar 127881-42050
Flexible Rubber Water Pump Impeller 836-0001 – 9 Blade Neoprene 95 mm Spline – Fits Yanmar 127881-42050
Flexible Rubber Water Pump Impeller 836-0001 – 9 Blade Neoprene 95 mm Spline – Fits Yanmar 127881-42050
Flexible Rubber Water Pump Impeller 836-0001 – 9 Blade Neoprene 95 mm Spline – Fits Yanmar 127881-42050
Flexible Rubber Water Pump Impeller 836-0001 – 9 Blade Neoprene 95 mm Spline – Fits Yanmar 127881-42050
Flexible Rubber Water Pump Impeller 836-0001 – 9 Blade Neoprene 95 mm Spline – Fits Yanmar 127881-42050
Flexible Rubber Water Pump Impeller 836-0001 – 9 Blade Neoprene 95 mm Spline – Fits Yanmar 127881-42050
Flexible Rubber Water Pump Impeller 836-0001 – 9 Blade Neoprene 95 mm Spline – Fits Yanmar 127881-42050
Flexible Rubber Water Pump Impeller 836-0001 – 9 Blade Neoprene 95 mm Spline – Fits Yanmar 127881-42050
Flexible Rubber Water Pump Impeller 836-0001 – 9 Blade Neoprene 95 mm Spline – Fits Yanmar 127881-42050
Flexible Rubber Water Pump Impeller 836-0001 – 9 Blade Neoprene 95 mm Spline – Fits Yanmar 127881-42050
Flexible Rubber Water Pump Impeller 836-0001 – 9 Blade Neoprene 95 mm Spline – Fits Yanmar 127881-42050

Flexible Rubber Water Pump Impeller 836-0001 – 9 Blade Neoprene 95 mm Spline – Fits Yanmar 127881-42050

Vendor: JLM Marine
Availability: In Stock
Product Type: Flexible Rubber Impeller
$58.80
$58.80
Subtotal: $58.80

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Flexible Rubber Water Pump Impeller 836-0001 – 9 Blade Neoprene 95 mm Spline – Fits Yanmar 127881-42050

Flexible Rubber Water Pump Impeller 836-0001 – 9 Blade Neoprene 95 mm Spline – Fits Yanmar 127881-42050

$58.80
Описание

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 836-0001, and is also supplied against JMP 8000-01, Johnson 09-1029B, DJ 003-0901, Kashiyama SP-200 / SP-220 and Yanmar 127881-42050.

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 9 blades)
3. Drive type (this listing is a 12-spline hub, 25 mm bore)
4. Pump model (cast or labelled on the pump body)

Identify it physically before ordering. This impeller has nine vanes moulded in black neoprene around a machined brass 12-spline insert. JMP 8000-01 is 95 mm diameter, 63 mm width and 25 mm bore. An isometric product photo can look like ten vanes; JMP, Johnson 09-1029B and DJ 003-0901 all specify nine. It is not interchangeable with 12-blade 25 mm 09-821B or 82 mm 12-blade 7608-01.

  • ✓ Primary OEM: Jabsco 836-0001
  • ✓ Product form: 9-blade neoprene impeller, brass 12-spline insert, 63 mm width, 25 mm bore
  • ✓ Fitment: part number, then blade count, then drive type

Part Number Cross-Reference

Use this table to confirm equivalent part numbers. Jabsco 836-0001-P is a kit-style number. This listing is the impeller only.

Type Brand Part Number Notes
OEM Jabsco Pump 836-0001 Primary reference. 9-blade neoprene, 12-spline
OEM Jabsco Pump 836-0001-P Jabsco kit-style number. Impeller only is sold here
OEM SPX Flow Johnson Pumps 09-1029B Johnson 9-blade equivalent
OEM JMP Pump 8000-01 JMP 9-blade 12-spline equivalent
OEM DJ Pump 003-0901 9-blade spline equivalent
OEM Kashiyama SP-200 Source-sheet Kashiyama number
OEM Kashiyama SP-220 Source-sheet Kashiyama number
OEM Yanmar 127881-42050 Yanmar raw-water pump impeller
OEM Cummins Onan 160596 Cummins Onan impeller number
OEM Cummins Onan 166758 Cummins Onan impeller number
OEM Cummins Onan 556540 Cummins Onan impeller number
OEM Cummins Onan 556850 Cummins Onan impeller number
OEM Cummins Onan 21601R Cummins Onan impeller number
OEM Caterpillar 1L4774 CAT raw-water pump impeller
OEM Nikkiso F40CBC Source-sheet Nikkiso number
OEM Perkins 460027 Perkins raw-water pump impeller
Other brand Industry interchange K-174 Source-sheet other-brand number
Other brand Industry interchange 888-174 Source-sheet other-brand number for this SKU

Compatible Engine Models

Confirm the original impeller number and count nine blades on a 25 mm 12-spline hub. Do not assume every Yanmar, Cummins, Volvo TAMD or CAT diesel uses this part.

Brand Engine / Pump Model Original Part No. Notes
Jabsco / Johnson / JMP / DJ / Kashiyama / Nikkiso Pumps specified for 836-0001, 09-1029B, 8000-01, 003-0901, SP-200 / SP-220 or F40CBC 836-0001, 09-1029B, 8000-01, 003-0901, SP-200, SP-220, F40CBC 9-blade, 12-spline, 95 × 63 × 25 mm
Yanmar Engines whose parts list calls for 127881-42050 127881-42050 Match the original number rather than a 6LY family dump
Cummins Onan Engines whose parts list calls for 160596, 166758, 556540, 556850 or 21601R 160596, 166758, 556540, 556850, 21601R Match the original number
Caterpillar / Perkins Engines whose parts list calls for 1L4774 or 460027 1L4774, 460027 Match the original number

Technical Specifications

Specification Value
Part type Flexible rubber impeller, raw water pump
Number of blades 9
Impeller diameter (A) 95 mm
Impeller width / depth (B) 63 mm
Shaft bore diameter (C) 25 mm
Insert / drive type 12-spline
Insert material Machined brass
Vane material Neoprene rubber

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 gasket, O-ring and lubricant are not included. JMP 8000-01K adds a cover gasket (GAK0007), an O-ring (ORG0015) and lubricant. Jabsco 836-0001-P is a kit-style number; the impeller only is sold here.

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, 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. 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. 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 nine vanes lay over the same way.
  6. 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? +

Start from the original impeller number. If the old part is Jabsco 836-0001, JMP 8000-01, Johnson 09-1029B, DJ 003-0901, Kashiyama SP-200 / SP-220, Yanmar 127881-42050, Cummins 160596 / 166758 / 556540 / 556850 / 21601R, CAT 1L4774, Nikkiso F40CBC or Perkins 460027, and the brass hub is a 25 mm 12-spline about 63 mm wide on a 95 mm 9-blade impeller, this part is the correct size.

The photo looks like 10 blades. Is this a 10-blade impeller? +

No. JMP 8000-01, Johnson 09-1029B and DJ 003-0901 all specify 9 blades. An isometric photo can hide one vane. Count nine blades before ordering.

Will this fit every Yanmar 6LY or Volvo TAMD diesel? +

No. Only engines whose parts list calls for 127881-42050 or JMP 8000-01. Match the original number. Some later Volvo high-speed engines use a 12-blade impeller of similar size; that is a different part.

What are the signs that my impeller needs replacing? +

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? +

This listing is the impeller only. JMP 8000-01K and Jabsco 836-0001-P are kit-style numbers that add seals. Photos of this SKU show the impeller on its own.

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.
  • The impeller is supplied on its own. Cover seals and lubricant must be ordered separately if your service procedure requires them.
  • This is a 9-blade, 95 mm 12-spline impeller, 63 mm wide with a 25 mm bore. It will not fit 12-blade 25 mm 09-821B or 82 mm 12-blade 7608-01.
  • 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?

  • 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.
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О компании JLM Marine

Основанная в 2002 году, компания JLM Marine зарекомендовала себя как специализированный производитель высококачественных морских деталей, базирующийся в Китае. Наша приверженность совершенству в производстве заслужила нам доверие ведущих мировых морских брендов.

Как прямой поставщик, мы обходим посредников, что позволяет нам предлагать конкурентоспособные цены без ущерба качеству. Такой подход не только поддерживает экономическую эффективность, но и гарантирует, что наши клиенты получают наилучшую ценность напрямую от источника.

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