Product Information

Bosch

UPM1 Replacement Kit

SKU: 6537
Item #: 8733903903
MFR #: 8733903903
UPM1 Replacement Kit (Part No. 8733903903) is a Bosch parts-category service kit intended to replace the UPM1 serviceable assembly in compatible Bosch heating and hydronic systems, helping technicians restore core pump/module functionality without sourcing individual parts. The kit simplifies field maintenance by grouping the routine replacement items into a single service package for professional installers. Specific Bosch North America documentation for part number 8733903903 was not located on official Bosch parts pages; this description is therefore based on the product name and parts-category usage. (bosch-homecomfort.com)
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Coquitlam, BC V3K 4X9
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Please note: Hydrowest Products Ltd. is a wholesale distributor and sells exclusively to licensed contractors and trade professionals.

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Category: Bosch Parts
Brand: Bosch

Fast Shipping

In-stock orders ship within 1 business day to anywhere in Canada.

Code-Compliant

All products meet Canadian HVAC and gas code standards.

Wholesale Pricing

Trade pricing for licensed contractors. 40+ years in the industry.

UPM1 Replacement Kit (Part No. 8733903903) is a Bosch parts-category service kit intended to replace the UPM1 serviceable assembly in compatible Bosch heating and hydronic systems, helping technicians restore core pump/module functionality without sourcing individual parts. The kit simplifies field maintenance by grouping the routine replacement items into a single service package for professional installers. Specific Bosch North America documentation for part number 8733903903 was not located on official Bosch parts pages; this description is therefore based on the product name and parts-category usage. (bosch-homecomfort.com)

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