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

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Tankless Water Heater Replacement Parts

GlobalTowne sells replacement parts for all Bosch, Takagi and AO Smith gas, propane and electric tankless water heaters and electric mini-tanks. We list the most common Bosch, Takagi and AO Smith 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, Takagi and AO Smith parts.

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  1. Bosch AquaStar 1600H-LP Gas Valve #8707011962

    Bosch AquaStar 1600H-LP Gas Valve #8707011962

    Bosch AquaStar 1600H-LP Gas Valve #8707011962 Learn More

    Regular Price: $398.69

    Special Price: $339.95

    Details
  2. 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: $379.79

    Special Price: $319.95

    Details
  3. Takagi / AO Smith Manifold Assembly w/ Gas Valve Assembly (NG) 100074671

    Takagi / AO Smith Manifold Assembly w/ Gas Valve Assembly (NG) 100074671

    Takagi / AO Smith Manifold Assembly w/ Gas Valve Assembly (LP) 100074671 Learn More

    Regular Price: $319.95

    Special Price: $252.95

    Details
  4. 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: $235.12

    Special Price: $189.95

    Details

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  1. $100.00 - $199.99 (1)
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  3. $300.00 and above (2)
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  1. AO Smith (1)
  2. Bosch AquaStar (3)
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  1. Commercial,Residential (4)
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  1. Gas Heater Replacement Part (4)
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  1. Gas Valves (4)
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