SKU: 88662608247

Impeller Kit – Fits Westerbeke Marine Gas Generators 3.0-9.6 (Replaces 32620)

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Description

Impeller Kit – Fits Westerbeke Marine Gas Generators 3.0-9.6 (Replaces 32620)Impeller Kit Fits Westerbeke Marine Gas Generators 3. 0 9. 6 (Replaces 32620) This impeller kit is designed for a wide range of Westerbeke Marine Gas Generators, from the 3. 0 BCG to the 9. 6 BCGTC models. It serves as a crucial component for the sea water cooling system, ensuring your generator operates at a safe temperature. This kit is a direct replacement for several OEM and aftermarket part numbers, including Sierra 23 3305, Westerbeke 32620,

Impeller Kit – Fits Westerbeke Marine Gas Generators 3.0-9.6 (Replaces 32620)

This impeller kit is designed for a wide range of Westerbeke Marine Gas Generators, from the 3.0 BCG to the 9.6 BCGTC models. It serves as a crucial component for the sea water cooling system, ensuring your generator operates at a safe temperature.

This kit is a direct replacement for several OEM and aftermarket part numbers, including Sierra 23-3305, Westerbeke 32620, Johnson 09-45589, and Onan 132-0311, among others listed in the cross-reference table below.

  • Installation: Installs in the sea water cooling system pump.
  • Complete Kit: Includes the impeller, gasket, o-ring, seals, and screws for a full replacement.
  • Blade Material: Features a durable High Speed Steel blade.

Part Number Cross-Reference

Use this table to confirm equivalent part numbers across OEM and aftermarket brands.

Brand Part Number
Sierra 23-3305
QuickMarine 32620
StayCoolPumps SCP-32620
Westerbeke 32620
Johnson 09-45589
Onan 132-0311

Compatible Engine Models

Confirm your engine model/year in the table below.

Brand Model Rated HP OEM Part No. Notes
Westerbeke 3.0 WMD (60Hz) 3.0 32620
Westerbeke 2.4 WMD (50Hz) 2.4 32620
Westerbeke 3.8/4.2 BCDT (60Hz) 3.8/4.2 32620
Westerbeke 3.5 BCDT (50Hz) 3.5 32620
Westerbeke 4.0 BCG (60Hz) 4.0 32620
Westerbeke 3.0 BCG (50Hz) 3.0 32620
Westerbeke 4.5 BCG (60Hz) 4.5 32620
Westerbeke 3.75 BCG (50Hz) 3.75 32620
Westerbeke 4.5 BCGB (60Hz) 4.5 32620
Westerbeke 3.75 BCGB (50Hz) 3.75 32620
Westerbeke 4.5 BCGTC (60Hz) 4.5 32620
Westerbeke 3.75 BCGB (50Hz) 3.75 32620 Also listed as BCGTC in some sources
Westerbeke 6.5 BCG (60Hz) 6.5 32620
Westerbeke 4.8 BCG (50Hz) 4.8 32620
Westerbeke 7.0 BCG (60Hz) 7.0 32620
Westerbeke 5.0 BCG (50Hz) 5.0 32620
Westerbeke 7.0 BCGA (60Hz) 7.0 32620
Westerbeke 5.0 BCGA (50Hz) 5.0 32620
Westerbeke 7.0 BCGB (60Hz) 7.0 32620
Westerbeke 6.0 BCGB (50Hz) 6.0 32620
Westerbeke 7.2 BCGTC (60Hz) 7.2 32620
Westerbeke 6.0 BCGTC (50Hz) 6.0 32620
Westerbeke 9.0 BTG (60Hz) 9.0 32620
Westerbeke 7.0 BTG (50Hz) 7.0 32620
Westerbeke 9.6 BCGTC (60Hz) 9.6 32620
Westerbeke 8.0 BCGTC (50Hz) 8.0 32620

Technical Specifications

Specification Value
Product Type Water Pump Impeller Kit
Installation Replacement for sea water cooling system
Housing Color White
Dimensions 6 × 2.5 × 6 inches (152.4 × 63.5 × 152.4 mm)
Weight 1.28 ounces (36.3 g)
Fitting Type Universal Fit
Warranty Lifetime Warranty (Sierra)
Other Technical Attributes High Speed Steel blade material

Package Contents

  • 1 x Impeller
  • 1 x Gasket
  • 4 x Screws
  • 1 x O-Ring
  • 2 x Seals

Installation Guide

Follow these general steps to replace the impeller. Always consult your generator’s service manual for model-specific instructions.

  1. Safety First: Turn off the generator and disconnect its power source. Close the water intake seacock to prevent water from entering the vessel.
  2. Access the Pump: Locate the sea water pump on your generator and remove the cover plate, which is typically held on by several screws.
  3. Remove Old Impeller: Carefully pull out the old impeller. You may need impeller pullers or two screwdrivers to gently pry it out. Note the direction of the blades.
  4. Clean Housing: Clean the inside of the pump housing, removing any debris or old gasket material. Inspect the housing for any scoring or damage.
  5. Install New Seals/Gasket: Install the new O-ring or gasket included in the kit. Ensure it is seated correctly.
  6. Install New Impeller: Lightly lubricate the new impeller and the inside of the housing with a suitable marine lubricant. Insert the new impeller with a twisting motion, ensuring the blades are bent in the correct direction of the pump's rotation.
  7. Reassemble: Replace the cover plate and tighten the screws evenly in a crisscross pattern to ensure a good seal.
  8. Final Check: Re-open the seacock. Start the generator and immediately check the pump for any water leaks and verify that water is flowing through the cooling system.

Troubleshooting & FAQ

Q: How do I confirm this impeller kit fits my generator?
A: This kit is designed for a wide range of Westerbeke gas generators from 3.0 to 9.6 kW. The best way to confirm fitment is to match your existing part number to one of the numbers listed in our Part Number Cross-Reference table, such as Westerbeke 32620 or Sierra 23-3305. You can also check your model against the Compatible Engine Models list.

Q: What are the common signs of a failing water pump impeller?
A: Key signs include the generator overheating, a reduced or no flow of water from the exhaust outlet, visible cracks or missing blades on the old impeller, or a hardened and inflexible impeller material. Regular inspection is recommended.

Q: How often should I replace the impeller?
A: As a general guideline, it is recommended to inspect the impeller annually and replace it every 1-2 years, depending on usage hours and operating conditions (e.g., water quality). Always replace it if you notice any signs of wear or damage.

Q: OEM vs. Aftermarket?
A: This listing is an aftermarket replacement part (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.

Q: How fast do you ship and how much does it cost?
A: 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.

Q: What is your warranty and return policy?
A: 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 (unused & 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.
  • 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 Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 88662608247

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Laurie A Canning
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Reviewed in the United States on May 27, 2026
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Debra
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★★★★★ 4
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I bought these for my ferret and even though it’s hard for her to pick up, they’re so cute and soft.
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Reviewed in the United States on February 19, 2026
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Shae Ra
Whiting, US
★★★★★ 5
Squeaker Shenanigans!
I have four large dogs - 65-70 lbs, pittie babies. Three out of four love, love, LOVE squeaker toys. You can't keep a squeaker toy in my house to save your life. If it squeaks, it dies a quick squeaker death. We generally buy squeak toys at the Dollar Store. My going theory on toys is it has to last one minute per dollar I spend on it. Then I call it "worth the money." Right now, it is winter and where I live, so very cold. My kids can't get all their energy out by being outside, so we have to come up with creative indoor fun. I like these types of packs of toys, one for the value and two the quantity. I put all the toys in a box, and then my kids get to come up and pick one out of the box - they then run off for the squeaker toy of destruction fun! Squeak! Squeak! Squeak! Death. One kids goes right to hunting for where the squeaker is inside the toy, and the hunkers down to figure out how to get it out and kill it. She is usually the 60 seconds or less, 1st Place Squeaker Death Winner. The other two, will take their time and enjoy the squeaks and work the squeaker out until death finally takes it. My 70 lb boy, is kind of a baby, and after he neatly gets his squeaker out, he makes the toy his baby, and then carries it around proudly. Considering how large my kids are, these are well made and take the full minute for Squeaker of Death girl to get the squeaker out. The size is great, even for my larger dogs. I got nine toys for about $12 at the time of this purchase, and it was perfect. It did come with the storage bag...but not something that is necessary in this house. Although, it was actually quite nice, and I am sure I can use for something else. The Sun was a big hit, and despite not having its squeaker anymore, is still hanging around, days later. I will be buying this pack again.
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Reviewed in the United States on December 21, 2025
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NT
New York, US
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Pom approved!
My pomeranian ONLY plays with small stuffies that squeak. She loves these and they are just small enough for her to hold and squeak. They are durable enough - but we will see when her big dog cousins come play with her, just how sturdy they are! They are very cute, soft, and squeak well. Good value for the pack of them.
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