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Bosch Therm gas and propane tankless water heaters and Bosch Powerstream electric tankless water heaters.

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Bosch Spare Parts

GlobalTowne sells replacement parts for all Bosch gas, propane and electric tankless water heaters and electric mini-tanks. We list the most common Bosch heat exchangers, water valves, gas valves, control boards, control boxes and hydrogenerator on this page. Call us at 888.726.9752 for pricing and availability on all other Bosch parts.

Items 11 to 20 of 44 total

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  1. Bosch Ariston GL6+ Kit

    Ariston GL6+ Kit

    Bosch Ariston GL6+ Kit Learn More

    Regular Price: $102.95

    Special Price: $69.95

    Details
  2. AO Smith Pilot Assembly #100109295

    AO Smith Pilot Assembly #100109295

    AO Smith Pilot Assembly #100109295 (100109295) Learn More

    Regular Price: $114.00

    Special Price: $72.39

    Details
  3. Bosch Ariston GL6PLUS-S Thermostat (#87387044420)

    Ariston GL6PLUS-S Thermostat (#87387044420)

    Bosch Ariston GL6+S Thermostat (#87387044420) Learn More

    Regular Price: $129.95

    Special Price: $79.95

    Details
  4. Bosch Ariston GLS Kit for GL2.5S/GL4S/ES2.5/ES4

    Ariston GLSKit for GL2.5S/GL4S/ES2.5/ES4

    Bosch Ariston GLS Kit for GL2.5S/GL4S/ES2.5/ES4 Learn More

    Regular Price: $129.95

    Special Price: $99.95

    Details
  5. AO Smith Hsi #100109355

    AO Smith Hsi #100109355

    AO Smith Hsi #100109355 (100109355) Learn More

    Regular Price: $143.00

    Special Price: $100.93

    Details
  6. Bosch Ariston GL6+S Kit for GL6+S / GL8TiS / ES8

    Ariston GL6+SKit for GL6+S / GL8TiS / ES8

    Bosch Ariston GL6+S Kit for GL6+S / GL8TiS / ES8 Learn More

    Regular Price: $169.95

    Special Price: $114.95

    Details
  7. Bosch Ariston GL2.5/GL4 Thermostat Retrofit Kit (#7738006446)

    Ariston GL2.5/GL4 Thermostat Retrofit Kit (#7738006446)

    Bosch Ariston GL2.5/GL4 Thermostat Retrofit Kit (#7738006446) Learn More

    Regular Price: $149.95

    Special Price: $119.95

    Details
  8. AO Smith Honeywell Valve #100112336

    AO Smith Honeywell Valve #100112336

    AO Smith Honeywell Valve #100112336 (100112336) Learn More

    Regular Price: $226.00

    Special Price: $147.15

    Details
  9. Bosch Ariston GL6+ Thermostat Retrofit Kit (#7738006447)

    Ariston GL6 Plus Thermostat Retrofit Kit (#7738006447)

    Bosch Ariston GL6Plus Thermostat Retrofit Kit (#7738006447) Learn More

    Regular Price: $169.95

    Special Price: $149.95

    Details
  10. AO Smith K, Service, Hw, N3, Gas Valve, Ng, 2", Cav #100262939

    AO Smith K, Service, Hw, N3, Gas Valve, Ng, 2", Cav #100262939

    AO Smith K, Service, Hw, N3, Gas Valve, Ng, 2", Cav #100262939 (100262939) Learn More

    Regular Price: $226.00

    Special Price: $168.18

    Details

Items 11 to 20 of 44 total

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  5. $400.00 and above (3)
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  1. AO Smith (10)
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  1. 120 (8)
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  1. Commercial,Residential (44)
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  1. Indoor (3)
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  1. Electric Heater Accessory (10)
  2. Electric Heater Replacement Part (4)
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Spare Part Type
  1. AO Smith Parts (10)
  2. Ariston Parts (10)
  3. Gas Valves (7)
  4. Heat Exchangers (5)
  5. Hydro Generators (1)
  6. PowerStar PCBs (4)
  7. Water Valves (7)
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