My Cart
Help
1/2" & 5/8" PEX Tubing SALE!
Weekly Specials
Bosch Parts Select Page
Water Heaters
Vent Pipe
Radiant Heat
PEX Tubing
Gas Fireplace
Wood Stoves
Gas Space Heaters
Electric Heaters
HVAC
House Fans
Fan Convectors
Heating Supplies
Plumbing Supplies
Boilers
Radiators
Bath & Kitchen
Solar
Misc
Save Energy
Clearance Items
Wrap yourself in warmth!
Bosch Aquastar 125X Water Heater Repair Parts
Buy Page
Repair Parts - Water Heater and Space Heater Repair Parts.
Disclaimer
Searching for a Part number?
click here
Looking for a Part that is not listed?
click here
*The prices on this page are for Web Orders Only!
Contractors & Plumbers -
click here for savings
Water Heater repair parts ship via UPS or USPS.
Most small, light weight parts on this page ship via USPS. Please be sure to provide us with a valid postal address if it's different than the UPS address.
Most shipments are received within 2 to 10 business days.
Faster shipping is available
.
Warning!
All parts are non-returnable.
Technical Support
Parts Diagram
Service Bulletins
Faster Shipping
Description
Web Order Cost
Change quantity in your Shopping Cart. You can always remove items later.
Bosch Aquastar 125X Heat Exchanger LOC 3305 - (Formerly - 8705406235) Part 8705406380
Non-Returnable
Download Service Bulletin
Disclaimer
$245.50 *
Part # 8705406380
Bosch Aquastar 125X Water Valve Assembly (conversion kit) LOC 3375 - Part 8707002810
Non-Returnable
Download Service Bulletin
Disclaimer
$176.05 *
Part # 8707002810
Bosch Aquastar 125X Water Valve Pushrod LOC 3230 - Part 8703406178
Non-Returnable
Download Service Bulletin
Disclaimer
$9.75 *
Part # 8703406178
Bosch Aquastar 125X Volumetric Water Governor LOC 3460 - Part 8707402015
Non-Returnable
Download Service Bulletin
Disclaimer
$28.05 *
Part # 8707402015
Bosch Aquastar 125X Water valve set screw LOC 3220 - Part 8703401165
(formerly 8703401051)
Non-Returnable
Download Service Bulletin
Disclaimer
$3.63 *
Part # 8703401165
Bosch Aquastar 125X Water Connections Gasket LOC 3565 - Part 8710103043
Non-Returnable
Download Service Bulletin
Disclaimer
$3.23 *
Part # 8710103043
Bosch Aquastar 125X Water Valve Diaphragm LOC 3080 - Part 8700503053
Non-Returnable
Download Service Bulletin
Disclaimer
$27.50 *
Part # 8700503053
Bosch Aquastar 125X Inlet Filter LOC 3110 - Part 8700507059
Non-Returnable
Download Service Bulletin
Disclaimer
$7.95 *
Part # 8700507059
Bosch Aquastar 125X Water Valve Venturi LOC 3530 - Part 8708205249
Non-Returnable
Download Service Bulletin
Disclaimer
$7.85 *
Part # 8708205249
Bosch Aquastar 125X Water Elbow Fitting LOC 3120 - Part 8700703114
Non-Returnable
Download Service Bulletin
Disclaimer
$64.05 *
Part # 8700703114
Bosch Aquastar 125X Cold Water Pipe LOC 3130 - Part 8700705294
Non-Returnable
Download Service Bulletin
Disclaimer
$19.95 *
Part # 8700705294
Bosch Aquastar 125X Hot Water Pipe LOC 3140 - Part 8700705556
Non-Returnable
Download Service Bulletin
Disclaimer
$37.50 *
Part # 8700705556
Bosch Aquastar 125X Temp Adjustment knob LOC 3205 - Part 8702000111
Non-Returnable
Download Service Bulletin
Disclaimer
$3.70 *
Part # 8702000111
Bosch Aquastar 125X Temp Adjustment Collar and Knob LOC 3075 - Part 8702000219
(formerly 8700403008)
Non-Returnable
Download Service Bulletin
Disclaimer
$13.99 *
Part # 8702000219
Bosch Aquastar 125X Pilot Assembly NG LOC 3585 - Part 8718105051
Non-Returnable
Download Service Bulletin
Disclaimer
$18.95 *
Part # 8718105051
Bosch Aquastar 125X Pilot Assembly LP LOC 3475 - Part 8708105491
Non-Returnable
Download Service Bulletin
Disclaimer
$27.50 *
Part # 8708105491
Bosch Aquastar 125X Pilot Injector Natural Gas (NG) LOC 3510 - Part 8708200069
Non-Returnable
Download Service Bulletin
Disclaimer
$3.89 *
Part # 8708200069
Bosch Aquastar 125X Pilot Injector Propane Gas (LP) LOC 3515 - Part 8708200312
Non-Returnable
Download Service Bulletin
Disclaimer
$3.89 *
Part # 8708200312
Bosch Aquastar 125X Pilot Tube LOC 3165 - Part 8700707349
Non-Returnable
Download Service Bulletin
Disclaimer
$5.25 *
Part # 8700707349
Bosch Aquastar 125X Pilot Tube Gasket LOC 3015 - Part 8700103173
Non-Returnable
Download Service Bulletin
Disclaimer
$3.63 *
Part # 8700103173
Bosch Aquastar 125X Electrovalve O-Ring LOC 3040 - Part 8700205120
Non-Returnable
Download Service Bulletin
Disclaimer
$3.47 *
Part # 8700205120
Bosch Aquastar 125X Pilot Electrovalve LOC 3540 - Part 8708501249
Non-Returnable
Download Service Bulletin
Disclaimer
$43.50 *
Part # 8708501249
Bosch Aquastar 125X Burner Electrovalve LOC 3545 - Part 8708501250
Non-Returnable
Download Service Bulletin
Disclaimer
$51.50 *
Part # 8708501250
Bosch Aquastar 125X Piezo Electrode LOC 3485 - Part 8708107006
Non-Returnable
Download Service Bulletin
Disclaimer
$8.05 *
Part # 8708107006
Bosch Aquastar 125X Flame Sensor Rod LOC 3490 - Part 8708107007
Non-Returnable
Download Service Bulletin
Disclaimer
$8.15 *
Part # 8708107007
Bosch Aquastar 125X Electronic Ignition Box LOC 3435 - Part 8707207011
Non-Returnable
Download Service Bulletin
Disclaimer
$84.35 *
Part # 8707207011
Bosch Aquastar 125X Overheat Sensor (ECO) LOC 3405 - Part 8707206040
Non-Returnable
Download Service Bulletin
Disclaimer
$38.75 *
Part # 8707206040
Bosch Aquastar 125X On/Off Switch LOC 3390 - Part 8707200014
Non-Returnable
Download Service Bulletin
Disclaimer
$9.85 *
Part # 8707200014
Bosch Aquastar 125X LED Control LOC 3450 - Part 8707305001
Non-Returnable
Download Service Bulletin
Disclaimer
$42.25 *
Part # 8707305001
Bosch Aquastar 125X Battery Box LOC 3090 - Part 8700505062
Non-Returnable
Download Service Bulletin
Disclaimer
$11.75 *
Part # 8700505062
Bosch Aquastar 125X Microswitch LOC 3385 - Part 8707200007
Non-Returnable
Download Service Bulletin
Disclaimer
$32.50 *
Part # 8707200007
Bosch Aquastar 125X Regulator Natural Gas (NG) LOC 3000 - Part 8342400000
Non-Returnable
Refer to Manual
Disclaimer
$31.05 *
Part # 8342400000
Bosch Aquastar 125X Regulator Propane Gas (LP) LOC 3005 - Part 8345520000
Non-Returnable
Refer to Manual
Disclaimer
$37.25 *
Part # 8345520000
Bosch Aquastar 125X Set of Cables complete LOC 3236 - Part 8704401035
Non-Returnable
Download Service Bulletin
Disclaimer
$48.55 *
Part # 8704401035
no image available
Bosch Aquastar 125X Front Cover LOC 3321 - Drop ship from mfg - Part 8705421255
Non-Returnable
Download Service Bulletin
Disclaimer
This item ships Directly from Bosch and may take up to 2 extra days to process
$152.95 *
Part # 8705421255
Bosch Aquastar 125X Gas valve NG LOC 3660 - Drop ship frm mfg - Part 8707011729
Non-Returnable
Download Service Bulletin
Disclaimer
This item ships Directly from Bosch and may take up to 2 extra days to process
$219.55 *
Part # 8707011729
Bosch Aquastar 125X Gas valve LP LOC 3665 - Drop ship from mfg - Part 8707011730
Non-Returnable
Download Service Bulletin
Disclaimer
This item ships Directly from Bosch and may take up to 2 extra days to process
$207.25 *
Part # 8707011730
Bosch Aquastar 125X Main Burner LP w/ Washer LOC 3497 - Drop ship from mfg - Part 8708120296
Non-Returnable
Download Service Bulletin
Disclaimer
This item ships Directly from Bosch and may take up to 2 extra days to process
$128.10 *
Part # 8708120296
Bosch Aquastar 125X Main Burner NG w/ Washer LOC 3498 - Drop ship from mfg - Part 8708120298
Non-Returnable
Download Service Bulletin
Disclaimer
This item ships Directly from Bosch and may take up to 2 extra days to process
$102.95 *
Part # 8708120298
Bosch Aquastar 125X Water Valve selector screw LOC 3536 - Part 8708500251
Non-Returnable
Download Service Bulletin
Disclaimer
$25.05 *
Part # 8708500251
Bosch Aquastar 125X Water valve slow ignition valve LOC 3555 - Part 8708503063
Non-Returnable
Download Service Bulletin
Disclaimer
$9.25 *
Part # 8708503063
Bosch Aquastar 125X Diaphragm Switch NG LOC 3556 - Part 8708504021
Non-Returnable
Download Service Bulletin
Disclaimer
This item ships Directly from Bosch and may take up to 2 extra days to process
$118.25 *
Part # 8708504021
Bosch Aquastar 125X Diaphragm Switch LP LOC 3557 - Drop ship from mfg - Part 8708504049
Non-Returnable
Download Service Bulletin
Disclaimer
This item ships Directly from Bosch and may take up to 2 extra days to process
$118.25 *
Part # 8708504049
Bosch Aquastar 125X Heat Exchanger Washer LOC 3570 - Part 8710103045
Non-Returnable
Download Service Bulletin
Disclaimer
$3.63 *
Part # 8710103045
Bosch Aquastar 125X Burner Assembly Washer LOC 3571 - Part 8710103060
Non-Returnable
Download Service Bulletin
Disclaimer
$3.63 *
Part # 8710103060
Bosch Aquastar Water Valve rebuild kit for 125X with Brass Water Valve LOC 3220/3230/3555/3460/3565/3570/3615 - Part #WVKIT 125X (8703406178 and 8708503063 and 8707402015 and DOWLUBE and 2 X 8710103043 and 2 X 8710103045 and 2 X 8703401051)
Non-Returnable
Download Service Bulletin
Disclaimer
$46.95 *
Part # WVKIT125X
Technical Support
Parts Diagram
Service Bulletins
Faster Shipping
Repair Parts - Water Heater and Space Heater Repair Parts.
Disclaimer
Searching for a Part number?
click here
Looking for a Part that is not listed?
click here
*The prices on this page are for Web Orders Only!
Contractors & Plumbers -
click here for savings
Water Heater repair parts ship via UPS or USPS.
Most small, light weight parts on this page ship via USPS. Please be sure to provide us with a valid postal address if it's different than the UPS address.
Most shipments are received within 2 to 10 business days.
Faster shipping is available
.
Warning!
All parts are non-returnable.
HouseNeeds Return Policy
HouseNeeds Shipping Policy
Bosch Parts Select Page
home
products
sale items
contact us
search
Help
Shop by Brand:
Activent
Ariston
Biasi
Bosch
Calcana
Cash Acme
Electro Boilers
Embassy Boilers
Empire Space Heaters
Eskabe Gas Space Heaters
Fantech Filters
Fantech House Fans
Grundfos Plumbing Supplies
Hayn Lines
Honeywell Heating Supplies
HouseNeeds Site Map
HousePEX
Marley Space Heaters
Monitor Boilers
Monitor Space Heaters
Myson
Orbis
Peter Mangone
POM Energy Concepts
PowerStar
PowerStream
Precision Hydronics
Precision Temp
Qmark
Radiant Heat
Regency Fireplaces
Rinnai
Schluter Radiant Heat System
Simpson Duravent
SolaTube Solar Products
Stiebel Eltron Water Heaters
Stiebel Eltron Solar Products
Taco Heating Supplies
Takagi
Tamarack
Toyotomi
Triangle Tube
Trinity Boilers
Ultra-Fin Radiant Floor Heat
Vanguard
Warmly Yours
Z Flex Vent Pipe
Copyright © 2000-2008 HouseNeeds Inc. 167 Mad River Canoe Rd Waitsfield, VT 1.802.583.5521