Sierra Impeller Kit 223-3301 for Westerbeke Generators, Replaces 11907

The Sierra Impeller Kit, part number 223-3301, is a direct replacement impeller kit engineered for select Westerbeke marine generators. It is built to meet or exceed the specifications of the original equipment part it replaces, so raw water circulation and cooling performance stay consistent with factory operation. The kit is designed as a straightforward service-interval replacement for boat owners and technicians maintaining Westerbeke generator sets, helping restore proper water flow when an impeller has worn, cracked, or lost vane flexibility.

The impeller features a machined construction and is sized to fit directly into the Westerbeke generator's raw water pump housing without modification. Because impellers are a wear item exposed to constant water contact and heat cycling, periodic replacement with a correctly sized kit like this one helps prevent overheating and pump damage caused by a degraded impeller. This kit replaces Westerbeke part number 11907 and is intended for the Westerbeke generator models listed in the fitment section below.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 223-3301
• UPC: 808282288327
• Product Dimensions: 6 x 2.5 x 6 inches
• Weight: 0.1 pounds
• Exterior Finish: Machined
• Category: Westerbeke Generator Parts

Fitment

• Westerbeke: 20.0 BED (60HZ) / 16.0 BED (50HZ)
• Westerbeke: 20.0 BEDA (60HZ) / 16.0 BEDA (50HZ)
• Westerbeke: 20.0 BEG (60HZ) / 16.0 BEG (50HZ)
• Westerbeke: 20.0 SBEG (60HZ) / 16.0 SBEG (50HZ)
• Westerbeke: 20.0 SBEGA (60HZ) / 16.0 SBEG (50HZ)
• Westerbeke: 22.5 SBEG (60HZ) / 18.7 SBEG (50HZ)
• Westerbeke: 22.5 SBEGA (60HZ) / 18.7 SBEGA (50HZ)
• Westerbeke: 25.0 BED (60HZ) / 20.0 BED (50HZ)
• Westerbeke: 25.0 BEG (60HZ) / 20.0 BEG (50HZ)
• Westerbeke: 25.0 WTA (60HZ) / 20.0 WTA (50HZ)
• Westerbeke: 32.0 BED (60HZ) / 25.0 BED (50HZ)
• Westerbeke: 32.0 BEDA (60HZ) / 25.0 BEDA (50HZ)
• Westerbeke: 32.0 BEDB (60HZ) / 25.0 BEDB (50HZ)
• Westerbeke: 32.0 WTF (60HZ) / 25.0 WTF (50HZ)

Replaces (OEM)

• 11907

Frequently Asked Questions

What does the Sierra 223-3301 impeller kit replace? It replaces Westerbeke part number 11907, providing a direct-fit replacement impeller for compatible Westerbeke generators.

Which Westerbeke generator models does part 223-3301 fit? The kit fits Westerbeke generator models including 20.0 BED, 20.0 BEDA, 20.0 BEG, 20.0 SBEG, 20.0 SBEGA, 22.5 SBEG, 22.5 SBEGA, 25.0 BED, 25.0 BEG, 25.0 WTA, 32.0 BED, 32.0 BEDA, 32.0 BEDB, and 32.0 WTF, in both 60HZ and 50HZ configurations.

How much does the Sierra impeller kit 223-3301 weigh? The kit weighs 0.1 pounds.

What are the dimensions of this impeller kit? The Sierra 223-3301 impeller kit measures 6 x 2.5 x 6 inches.

Is the Sierra 223-3301 impeller a genuine OEM part or an aftermarket replacement? It is a Sierra-branded aftermarket replacement engineered to meet or exceed the specifications of the original Westerbeke 11907 impeller it replaces.

What finish does the 223-3301 impeller have? The impeller has a machined exterior finish.

When should I replace the impeller in my Westerbeke generator? Impellers are a wear item exposed to constant water flow and heat, so the 223-3301 kit is intended for replacing a worn, cracked, or degraded impeller as part of routine raw water pump maintenance.

Does the Sierra 223-3301 impeller kit come with a warranty? Yes, the 223-3301 kit qualifies for Sierra's customer satisfaction warranty, which covers defects in workmanship and materials for the useful life of the product.

What is the UPC for the Sierra 223-3301 impeller kit? The UPC for this impeller kit is 808282288327.

Will this impeller kit work on any Westerbeke generator? No, the 223-3301 impeller kit is designed for the specific Westerbeke generator models listed in its fitment, such as the 20.0 BED, 25.0 BEG, and 32.0 WTF series, rather than being a universal fit for all Westerbeke units.