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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.

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  1. 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
  2. Bosch AquaStar 250SX / 250SXO Water Valve with Engine #8708505018

    Bosch AquaStar 250SX / 250SXO Water Valve with Engine #8708505018

    Bosch AquaStar 250SX / 250SXO Water Valve with Engine #8708505018 Learn More

    Regular Price: $209.15

    Special Price: $162.95

    Details
  3. Bosch AquaStar 125FX / 425EF Water Valve #8707006361

    Bosch AquaStar 125FX / 425EF Water Valve #8707006361

    Bosch AquaStar 125FX / 425EF Water Valve #8707006361 Learn More

    Regular Price: $209.47

    Special Price: $162.95

    Details
  4. Bosch AquaStar Universal Hydro Generator #8707406104

    Bosch AquaStar Universal Hydro Generator #8707406104

    Bosch AquaStar Universal Hydro Generator #8707406104 Learn More

    Regular Price: $172.35

    Special Price: $149.95

    Details
  5. 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
  6. Bosch AquaStar 1600P-NG Gas Valve #8707021279

    Bosch AquaStar 1600P-NG Gas Valve #8707021279

    Bosch AquaStar 1600P-NG Gas Valve #8707021279 Learn More

    Regular Price: $197.16

    Special Price: $136.95

    Details
  7. Bosch AquaStar 1600P-LP Gas Valve #8707021401

    Bosch AquaStar 1600P-LP Gas Valve #8707021401

    Bosch AquaStar 1600P-LP Gas Valve #8707021401 Learn More

    Regular Price: $186.12

    Special Price: $134.95

    Details
  8. 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: $149.95

    Special Price: $119.95

    Details
  9. AO Smith Hsi #100109355

    AO Smith Hsi #100109355

    AO Smith Hsi #100109355 (100109355) Learn More

    Regular Price: $143.00

    Special Price: $100.93

    Details
  10. 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: $129.95

    Special Price: $99.95

    Details

Items 21 to 30 of 45 total

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  1. $0.00 - $99.99 (16)
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  4. $300.00 and above (6)
Brand
  1. AO Smith (10)
  2. Bosch AquaStar (20)
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  4. Bosch PowerStar (5)
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  1. Natural Gas (3)
  2. Liquid Propane (3)
Voltage (Volts)
  1. 120 (8)
Application
  1. Commercial,Residential (45)
Indoor/Outdoor Installation
  1. Indoor (3)
Product Type
  1. Electric Heater Accessory (10)
  2. Electric Heater Replacement Part (5)
  3. Gas Heater Replacement Part (30)
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 (5)
  7. Water Valves (7)
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