Sierra Sea Water Pump Belt 223-4007 for Select Westerbeke Generators

The Sierra Sea Water Pump Belt, part number 223-4007, drives the raw water pump on select Westerbeke marine generators, keeping cooling water circulating through the generator's heat exchanger. This belt is engineered to meet or exceed the specifications of the original equipment part it replaces, built to withstand the heat, moisture, and vibration of the marine engine compartment. It is a direct-fit replacement designed specifically for the Westerbeke generator applications listed below, so buyers do not need to modify or adapt a generic automotive belt.

Sierra has supplied engine and drive parts to the marine industry for decades, and this belt carries that same standard of fit and durability. Replacing a worn or cracked sea water pump belt on schedule helps prevent slipping, reduced water flow, and the overheating that can follow from a failed cooling circuit. The belt ships ready to install with no additional hardware required.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 223-4007
• Product Type: Sea Water Pump Belt
• Category: Westerbeke Generator Parts
• UPC: 808282302641
• Weight: 0.09 pounds
• Item Dimensions (L x W x H): 3 x 0.43 x 15.8 inches
• Package Dimensions (L x W x H): 6.73 x 3.27 x 0.87 inches
• Country of Origin: Taiwan, Province of China

Fitment

• Westerbeke 4.0 BCD (60Hz)
• Westerbeke 4.4 BCD (60Hz)
• Westerbeke 4.4 WMD (60Hz) / 3.3 WMD (50Hz)
• Westerbeke 5.0 BCD/BCDA/BCDB (60Hz) / 4.0 BCD/BCDA/BCDB (50Hz)

Frequently Asked Questions

What does the Sierra 223-4007 belt fit? The Sierra 223-4007 sea water pump belt fits select Westerbeke generators, including the 4.0 BCD (60Hz), 4.4 BCD (60Hz), 4.4 WMD (60Hz) / 3.3 WMD (50Hz), and 5.0 BCD/BCDA/BCDB (60Hz) / 4.0 BCD/BCDA/BCDB (50Hz) models.

What is the weight of this belt? Part number 223-4007 weighs 0.09 pounds.

What are the dimensions of the belt itself? The 223-4007 sea water pump belt measures 3 x 0.43 x 15.8 inches (length x width x height).

Is this a genuine Sierra part or a generic belt? It is a genuine Sierra part, number 223-4007, engineered to meet or exceed the specifications of the original equipment belt it replaces.

Where is this belt manufactured? The 223-4007 sea water pump belt is manufactured in Taiwan, Province of China.

What function does this belt serve on a Westerbeke generator? It drives the sea water pump on select Westerbeke generators, keeping raw cooling water circulating through the generator's cooling system.

Will the 223-4007 belt fit any Westerbeke generator? No, it is designed for the specific Westerbeke models listed in the fitment section, including the 4.0 BCD, 4.4 BCD, 4.4 WMD/3.3 WMD, and 5.0/4.0 BCD/BCDA/BCDB variants; check your generator's model designation before ordering.

What is included when I order this part? You receive one Sierra 223-4007 sea water pump belt, ready to install with no additional hardware required.

How do I know if my sea water pump belt needs replacing? Signs of a worn sea water pump belt include cracking, glazing, slipping, or reduced cooling water flow; the 223-4007 is designed as a direct replacement to restore proper pump operation.

Does Sierra offer a warranty on the 223-4007 belt? Sierra warrants this belt, part number 223-4007, to be free of defects in workmanship and materials for the useful life of the product, subject to Sierra's stated conditions and limitations.