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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.

46 Item(s)

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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: $378.95

    Details
  2. 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
  3. 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
  4. 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: $345.95

    Special Price: $299.95

    Details
  5. Bosch AquaStar 1600 Heat Exchanger #8705406386

    Bosch AquaStar 1600 Heat Exchanger #8705406386

    Bosch AquaStar 1600 Heat Exchanger #8705406386 Learn More

    Regular Price: $345.95

    Special Price: $299.95

    Details
  6. 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
  7. Bosch AquaStar 1600H-NG Gas Valve #8707011976

    Bosch AquaStar 1600H-NG Gas Valve #8707011976

    Bosch AquaStar 1600H-NG Gas Valve #8707011976 Learn More

    Regular Price: $258.69

    Special Price: $219.95

    Details
  8. 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: $258.69

    Special Price: $219.95

    Details
  9. 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: $226.73

    Special Price: $189.95

    Details
  10. Bosch AquaStar 125B / 125HX Water Valve #8707002649

    Bosch AquaStar 125B / 125HX Water Valve #8707002649

    Bosch AquaStar 125B / 125HX Water Valve #8707002649 Learn More

    Regular Price: $212.55

    Special Price: $182.95

    Details
  11. 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: $208.79

    Special Price: $179.95

    Details
  12. Bosch AquaStar 125B Water Valve Assembly #8707002499

    Bosch AquaStar 125B Water Valve Assembly #8707002499

    Bosch AquaStar 125B Water Valve Assembly #8707002499 Learn More

    Regular Price: $208.44

    Special Price: $178.95

    Details
  13. 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: $199.95

    Special Price: $178.95

    Details
  14. Bosch AquaStar 1600P / 1600H Water Valve #8738710119

    Bosch AquaStar 1600P / 1600H Water Valve #8738710119

    Bosch AquaStar 1600P / 1600H Water Valve #8738710119 Learn More

    Regular Price: $215.47

    Special Price: $172.95

    Details
  15. Bosch AquaStar 125B-NG Gas Valve #8707021090

    Bosch AquaStar 125B-NG Gas Valve #8707021090

    Bosch AquaStar 125B-NG Gas Valve #8707021090 Learn More

    Regular Price: $193.59

    Special Price: $169.95

    Details
  16. 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
  17. 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
  18. 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
  19. Bosch AquaStar 2700ES / 2400ES Water Valve with Engine #8708505024

    Bosch AquaStar 2700ES / 2400ES Water Valve with Engine #8708505024

    Bosch AquaStar 2700ES / 2400ES Water Valve with Engine #8708505024 Learn More

    Regular Price: $189.47

    Special Price: $159.95

    Details
  20. 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
  21. 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
  22. PowerStar AE125 PCB Control Board #93-793778 for Copper Can Unit

    Regular Price: $185.95

    Special Price: $145.95

    Details
  23. PowerStar AE115 PCB Control Board #93-793843 for Poly Units

    PowerStar AE115 PCB Control Board #93-793843 for Poly Units

    PowerStar AE115 PCB Control Board (93-793843) Learn More

    Regular Price: $185.95

    Special Price: $144.95

    Details
  24. 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
  25. 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
  26. New PowerStar AE125 PCB Control Board #8738701738 for Poly Units for S/N 108 or Higher

    Regular Price: $179.95

    Special Price: $127.95

    Details
  27. PowerStar AE115 PCB Control Board #93-793777 for Copper Can Unit

    Regular Price: $165.95

    Special Price: $124.95

    Details
  28. New PowerStar AE115 PCB Control Board #8738701732 for Poly Units for S/N 108 or Higher

    Regular Price: $169.95

    Special Price: $121.95

    Details
  29. 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
  30. AO Smith Hsi #100109355

    AO Smith Hsi #100109355

    AO Smith Hsi #100109355 (100109355) Learn More

    Regular Price: $143.00

    Special Price: $100.93

    Details
  31. 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
  32. 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: $109.95

    Special Price: $89.95

    Details
  33. 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
  34. 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: $89.95

    Special Price: $69.95

    Details
  35. Bosch Ariston GL6+ Kit

    Ariston GL6+ Kit

    Bosch Ariston GL6+ Kit Learn More

    Regular Price: $82.95

    Special Price: $63.95

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

    Ariston GL6PLUS-S Thermostat (#87387044420)

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

    Regular Price: $79.95

    Special Price: $59.95

    Details
  37. Bosch Ariston GL2.5S/GL4S/ES2.5/ES4 Thermostat (#87387044410)

    Ariston GL2.5S/GL4S/ES2.5/ES4 Thermostat (#87387044410)

    Bosch Ariston GL2.5S/GL4S/ES2.5/ES4 Thermostat (#87387044410) Learn More

    Regular Price: $76.95

    Special Price: $56.95

    Details
  38. Bosch Ariston GL Kit for GL2.5/GL4/GL2.5Ti/GL4Ti

    Ariston GLKit for GL2.5/GL4/GL2.5Ti/GL4Ti

    Bosch Ariston GL Kit for GL2.5/GL4/GL2.5Ti/GL4Ti Learn More

    Regular Price: $69.95

    Special Price: $49.95

    Details
  39. AO Smith Pilot With Tubing #100112330

    AO Smith Pilot With Tubing #100112330

    AO Smith Pilot With Tubing #100112330 (100112330) Learn More

    Regular Price: $66.00

    Special Price: $45.04

    Details
  40. AO Smith Anode Rod #100109594

    AO Smith Anode Rod #100109594

    AO Smith Anode Rod #100109594 (100109594) Learn More

    Regular Price: $37.00

    Special Price: $26.42

    Details
  41. AO Smith Thermostat #100108683

    AO Smith Thermostat #100108683

    AO Smith Thermostat #100108683 (100108683) Learn More

    Regular Price: $26.00

    Special Price: $20.79

    Details
  42. Bosch Ariston GL6+/GL6+S/GL8Ti/GL8TiS/ES8 Anode Rod (#570241)

    Ariston GL6+/GL6+S/GL8Ti/GL8TiS/ES8 Anode Rod (#570241)

    Bosch Ariston GL6+/GL6+S/GL8Ti/GL8TiS/ES8 Anode Rod (#570241) Learn More

    Regular Price: $23.95

    Special Price: $18.95

    Details
  43. AO Smith Element #100108290

    AO Smith Element #100108290

    AO Smith Element #100108290 (100108290) Learn More

    Regular Price: $25.00

    Special Price: $18.32

    Details
  44. AO Smith Element #100108283

    AO Smith Element #100108283

    AO Smith Element #100108283 (100108283) Learn More

    Regular Price: $17.00

    Special Price: $13.80

    Details
  45. AO Smith Thermostat With Cover #100108421

    AO Smith Thermostat With Cover #100108421

    AO Smith Thermostat With Cover #100108421 (100108421) Learn More

    Regular Price: $17.00

    Special Price: $12.74

    Details
  46. Bosch Ariston GL2.5/GL4/GL2.5S/GL4S Anode Rod (#574305)

    Ariston GL2.5/GL4/GL2.5S/GL4S Anode Rod (#574305)

    Bosch Ariston GL2.5/GL4/GL2.5S/GL4S Anode Rod (#574305) Learn More

    Regular Price: $17.95

    Special Price: $10.95

    Details

46 Item(s)

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