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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 1 to 10 of 46 total

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  1. Bosch AquaStar 2700ES / 2400ES Heat Exchanger #8738701985 (8705406422)

    Bosch AquaStar 2700ES / 2400ES Heat Exchanger #8738701985 (8705406422)

    Bosch AquaStar 2700ES / 2400ES Heat Exchanger #8738701985 (8705406422) Learn More

    Regular Price: $439.95

    Special Price: $399.95

    Details
  2. PowerStar AE125 PCB Control Board #93-793844 for Poly Units

    PowerStar AE125 PCB Control Board #93-793844 for Poly Units

    PowerStar AE125 PCB Control Board (93-793844) Learn More

    Regular Price: $399.95

    Special Price: $389.95

    Details
  3. Bosch AquaStar 125 Heat Exchanger #8705406380 (8705406235)

    Bosch AquaStar 125 Heat Exchanger #8705406380 (8705406235)

    Bosch AquaStar 125 Heat Exchanger #8705406380 (8705406235) Learn More

    Regular Price: $445.95

    Special Price: $349.95

    Details
  4. Bosch AquaStar 125BS / 1600PS Heat Exchanger #8705406189

    Bosch AquaStar 125BS / 1600PS Heat Exchanger #8705406189

    Bosch AquaStar 125BS / 1600PS Heat Exchanger #8705406189 Learn More

    Regular Price: $399.95

    Special Price: $348.95

    Details
  5. Bosch AquaStar 2400E / 2400EO / 250SX / 250SXO Heat Exchanger #8705406285

    Bosch AquaStar 2400E / 2400EO / 250SX / 250SXO Heat Exchanger #8705406285

    Bosch AquaStar 2400E / 2400EO / 250SX / 250SXO Heat Exchanger #8705406285 Learn More

    Regular Price: $429.95

    Special Price: $345.95

    Details
  6. Bosch AquaStar 1600 Heat Exchanger #8705406386

    Bosch AquaStar 1600 Heat Exchanger #8705406386

    Bosch AquaStar 1600 Heat Exchanger #8705406386 Learn More

    Regular Price: $379.95

    Special Price: $329.95

    Details
  7. Bosch AquaStar 2700ES / 2400ES / 2400E / 250SX / 250SXO Gas Valve #8707021019

    Bosch AquaStar 2700ES / 2400ES / 2400E / 250SX / 250SXO Gas Valve #8707021019

    Bosch AquaStar 2700ES / 2400ES / 2400E / 250SX / 250SXO Gas Valve #8707021019 Learn More

    Regular Price: $307.95

    Special Price: $289.95

    Details
  8. Bosch AquaStar 125B-LP Gas Valve #8707021091

    Bosch AquaStar 125B-LP Gas Valve #8707021091

    Bosch AquaStar 125B-LP Gas Valve #8707021091 Learn More

    Regular Price: $298.79

    Special Price: $249.95

    Details
  9. New PowerStar AE125 PCB Control Board #8738701738 for Poly Units for S/N 108 or Higher

    New PowerStar AE125 PCB Control Board #8738701738 for Poly Units for S/N 108 to 555

    PowerStar AE125 PCB Control Board (8738701738) Learn More

    Regular Price: $299.95

    Special Price: $249.95

    Details
  10. Bosch AquaStar 125X Water Valve Assembly #8707002810

    Bosch AquaStar 125X Water Valve Assembly #8707002810

    Bosch AquaStar 125X Water Valve Assembly #8707002810 Learn More

    Regular Price: $272.00

    Special Price: $229.95

    Details

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