Flexible Rubber Water Pump Impeller 18838-0001 – 12 Blade Neoprene 62.5 mm Key Drive – Fits Johnson 09-701B-1
Flexible Rubber Water Pump Impeller 18838-0001 – 12 Blade Neoprene 62.5 mm Key Drive – Fits Johnson 09-701B-1
Flexible Rubber Water Pump Impeller 18838-0001 – 12 Blade Neoprene 62.5 mm Key Drive – Fits Johnson 09-701B-1
Flexible Rubber Water Pump Impeller 18838-0001 – 12 Blade Neoprene 62.5 mm Key Drive – Fits Johnson 09-701B-1
Flexible Rubber Water Pump Impeller 18838-0001 – 12 Blade Neoprene 62.5 mm Key Drive – Fits Johnson 09-701B-1
Flexible Rubber Water Pump Impeller 18838-0001 – 12 Blade Neoprene 62.5 mm Key Drive – Fits Johnson 09-701B-1
Flexible Rubber Water Pump Impeller 18838-0001 – 12 Blade Neoprene 62.5 mm Key Drive – Fits Johnson 09-701B-1
Flexible Rubber Water Pump Impeller 18838-0001 – 12 Blade Neoprene 62.5 mm Key Drive – Fits Johnson 09-701B-1

Flexible Rubber Water Pump Impeller 18838-0001 – 12 Blade Neoprene 62.5 mm Key Drive – Fits Johnson 09-701B-1

Vendor: JLM Marine
Availability: In Stock
Product Type: Flexible Rubber Impeller
$37.20
$37.20
Subtotal: $37.20

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Flexible Rubber Water Pump Impeller 18838-0001 – 12 Blade Neoprene 62.5 mm Key Drive – Fits Johnson 09-701B-1

Flexible Rubber Water Pump Impeller 18838-0001 – 12 Blade Neoprene 62.5 mm Key Drive – Fits Johnson 09-701B-1

$37.20
Descripción

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 keyed shaft. It replaces the primary original part number Jabsco 18838-0001, and is also supplied against Johnson 09-701B-1, JMP 7192-01, DJ 08-38-1201 and Sherwood 09959.

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 32 mm thick, not the 22.4 mm JMP 7172-01)
3. Drive type (this listing is a key-drive hub, not a spline)
4. Pump model (cast or labelled on the pump body)

Identify it physically before ordering. This impeller has twelve vanes moulded in black neoprene around a machined brass key-drive insert. JMP 7192-01 is 62.5 mm diameter, 32 mm width and 16 mm (5/8 in.) bore. Jabsco 18838-0001 is Profile W. It is not interchangeable with JMP 7172-01 (same diameter, 22.4 mm width) or with 57 mm Jabsco 1210-0001 / 4568-0001.

  • ✓ Primary OEM: Jabsco 18838-0001
  • ✓ Product form: 12-blade neoprene impeller, brass key-drive insert, 32 mm width
  • ✓ Fitment: part number, then width, then drive type

Part Number Cross-Reference

Use this table to confirm equivalent part numbers. Jabsco 18838-0001-P, JMP 7192-01K and Sherwood 09959K are kit numbers. This listing is the impeller only.

Type Brand Part Number Notes
OEM Jabsco Pump 18838-0001 Primary reference. Profile W. 18838-0001-P is the kit number
OEM Johnson Pump (SPX Flow) 09-701B-1 Key-drive 12-blade impeller
OEM JMP Pump 7192-01 Bare impeller. JMP 7192-01K is a kit
OEM DJ Pump 08-38-1201 12-blade key-drive equivalent
OEM Sherwood Pump 09959 Bare impeller. Also written 9959
OEM Sherwood Pump 09959K Source-sheet kit number. This listing does not include gasket or O-ring
OEM Cummins Onan 132-0117 / 132-0317 JMP 7192-01 equivalent
OEM Perkins NA900010 Source-sheet number. Also listed on Jabsco 18838-0001-P cross-ref
Other brand Industry interchange J-203B Source-sheet other-brand number
Other brand Industry interchange 888-203B Source-sheet other-brand number for this SKU

Compatible Engine Models

Confirm the original impeller number and the 32 mm key-drive hub. Do not assume every Onan generator or Volvo Penta AQ uses this part. Match the original number first.

Brand Engine / Pump Model Original Part No. Notes
Jabsco / Johnson / Sherwood Pumps specified for 18838-0001, 09-701B-1 or 09959 18838-0001, 09-701B-1, 09959 12-blade, key drive, 62.5 × 32 × 16 mm
Cummins Onan Generators whose parts list calls for 132-0117 or 132-0317 132-0117, 132-0317 Match the original number
Perkins Engines whose parts list calls for NA900010 NA900010 Match the original number
Volvo Penta / Westerbeke Pumps specified for 835512 / 3854286 or 33104 / 11907 835512, 3854286, 33104, 11907 JMP 7192-01 equivalent list. Confirm the original number; do not dump AQ or BED families

Technical Specifications

Specification Value
Part type Flexible rubber impeller, raw water pump
Number of blades 12
Impeller diameter (A) 62.5 mm (2-7/16 in.)
Impeller width / depth (B) 32 mm (1-1/4 in.)
Shaft bore diameter (C) 16 mm (5/8 in.)
Insert / drive type Key drive
Insert material Machined brass
Vane material Neoprene 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 gaskets, O-rings and lubricant are not included. Jabsco 18838-0001-P, JMP 7192-01K and Sherwood 09959K add those service parts. If your service procedure calls for a new cover seal, order it separately against your pump model.

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 key 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 keyway in the brass insert with the pump shaft key, 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, 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 18838-0001, Johnson 09-701B-1, JMP 7192-01, DJ 08-38-1201, Sherwood 09959, Onan 132-0117 / 132-0317 or Perkins NA900010, and the brass hub is a key drive about 32 mm wide on a 62.5 mm impeller, this part is the correct size.

Is this the same as JMP 7172-01 / Sherwood 9000? +

No. Both are 12-blade, 62.5 mm key-drive, but 7172-01 is 22.4 mm wide. This listing is 32 mm wide and will not seat in a 7172-01 housing.

Will this fit every Volvo Penta AQ or Onan generator? +

No. Only engines whose parts list calls for 18838-0001, 09-701B-1, 132-0117, 132-0317 or the other verified numbers in the table. Match the original number and measure the old impeller width.

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. Jabsco 18838-0001-P, JMP 7192-01K and Sherwood 09959K are kit numbers that add gaskets, O-rings and lubricant.

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 32 mm wide, 62.5 mm key-drive impeller. It will not fit JMP 7172-01 (22.4 mm) or 57 mm Jabsco 1210-0001 / 4568-0001.
  • 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?

  • 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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Acerca de JLM Marine

Fundada en 2002, JLM Marine se ha consolidado como un fabricante dedicado de piezas marinas de alta calidad, con sede en China. Nuestro compromiso con la excelencia en la fabricación nos ha ganado la confianza de las principales marcas marinas a nivel mundial.

Como proveedor directo, evitamos intermediarios, lo que nos permite ofrecer precios competitivos sin comprometer la calidad. Este enfoque no solo promueve la rentabilidad, sino que también garantiza que nuestros clientes reciban el mejor valor directamente del proveedor.

Estamos entusiasmados de ampliar nuestro alcance a través de canales minoristas, llevando nuestra experiencia y compromiso con la calidad directamente a los propietarios de embarcaciones y entusiastas de todo el mundo.

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