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Bosch Tankless Water Heaters 520 PN Repair Parts

Bosch 520 PN Gas Tankless Water Heater Repair Parts.

Water Heater repair parts ship via Fedex 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.

Warning! All parts are non-returnable!

Viewing 50 Products

View All Bosch BBT Products

- v11752
- Bosch Therm 520 PN Water Valve - 8738710119 - Non-Returnable
  
  • Old part Number was 8707006344 • LOC 3735 • Part Works For
  
  87070063445P • View Detail • Free Ground Shipping
  
  $225.75
- $225.75
  
  Qty
- v11711
- Bosch Therm 520 PN Diaphragm - 8700503084 - Non-Returnable
  
  • LOC 3785 • Part Works For
  
  87005030845P • View Detail • Free Shipping Eligible
  
  $40.95
- $40.95
  
  Qty
- v11758
- Bosch Therm 520 PN Connecting Pipe Hot - 8700715178 - Non-returnable
  
  • Also Known as Part Number 87007151780 • LOC 3186 • Part Works For
  
  87007151785P • View Detail • Free Shipping Eligible
  
  $65.75
- $65.75
  
  Qty
- v11716
- Bosch Therm 520 PN Exhaust Pipe Union - 8705504046 - Non-Returnable
  
  • LOC 3936 • Part Works For
  
  87055040465P • View Detail • Free Shipping Eligible
  
  $24.75
- $24.75
  
  Qty
- v11717
- Bosch Therm 520 PN Gas Supply Pipe - 8700715351 - Non-Returnable
  
  • LOC 3702 • Part Works For
  
  87007153515P • View Detail • Free Shipping Eligible
  
  $42.75
- $42.75
  
  Qty
- v11719
- Bosch Therm 520 PN Gas Valve O-Ring - 8701004044 - Non-Returnable
  
  • LOC 3808 • Part Works For
  
  87010040445P • View Detail • Free Shipping Eligible
  
  $6.75
- $6.75
  
  Qty
- v11721
- Bosch Therm 520 PN Heat Exchanger - 8705406386 - Non-Returnable
  
  • LOC 3710 • Part Works For
  
  87054063865P • View Detail • Free Ground Shipping
  
  $382.75
- $382.75
  
  Qty
- v11722
- Bosch Therm 520 PN Ignition Lead - 8704401040 - Non-Returnable
  
  • Old Number was 8748107089 • LOC 3745 • Part Works For
  
  87044010405P • View Detail • Free Shipping Eligible
  
  $16.75
- $16.75
  
  Qty
- v11724
- Bosch Therm 520 PN Inlet Filter - 8700507059 - Non-returnable
  
  • LOC 3110 • Part Works For
  
  87005070595P • View Detail • Free Shipping Eligible
  
  $14.75
- $14.75
  
  Qty
- v11725
- Bosch Therm 520 PN Inlet Water Connection - 8700306110 - Non-Returnable
  
  • LOC 3850 • Part Works For
  
  87003061105P • View Detail • Free Shipping Eligible
  
  $20.75
- $20.75
  
  Qty
- v11726
- Bosch Therm 520 PN LP Gas Pressure Regulator - 8707406083 - Non-Returnable
  
  • Old Part Number was 8716487043 • LOC 3755 • Part Works For
  
  87074060835P • View Detail • Free Shipping Eligible
  
  $59.75
- $59.75
  
  Qty
- v11727
- Bosch Therm 520 PN LP Main Burner - 8708120619 - Non-Returnable
  
  • LOC 3855 • Part Works For
  
  87081206195P • View Detail • Free Shipping Eligible
  
  $105.75
- $105.75
  
  Qty
- v11729
- Bosch Therm 520 PN NG Gas Pressure Regulator - 8707406084 - Non-Returnable
  
  • Old Part Number was 8716487044 • Part Works For
  
  87074060845P • View Detail • Free Shipping Eligible
  
  $58.75
- $58.75
  
  Qty
- v11731
- Bosch Therm 520 PN NG Pilot Injector - 8708200327 - Non-Returnable
  
  • LOC 3773 • Part Works For
  
  87082003275P • View Detail • Free Shipping Eligible
  
  $7.75
- $7.75
  
  Qty
- v11739
- Bosch Therm 520 PN LP Pilot Injector - 87082003260 - Non-Returnable
  
  • LOC 3725 • Part Works For
  
  87082003265P • View Detail • Free Shipping Eligible
  
  $21.95
- $21.95
  
  Qty
- v11733
- Bosch Therm 520 PN Outlet Flex Hose - 8700703139 - Non-returnable
  
  • Old Part Number was 8700703130 • LOC 3125 • Part Works For
  
  87007031395P • View Detail • Free Shipping Eligible
  
  $62.95
- $62.95
  
  Qty
- v11734
- Bosch Therm 520 PN Outlet Flex Hose Washer - 8700103658 - Non-returnable
  
  • Old Part Number was 8700703130 • LOC 3020 • Part Works For
  
  87001036585P • View Detail • Free Shipping Eligible
  
  $5.75
- $5.75
  
  Qty
- v11735
- Bosch Therm 520 PN Outlet Water Connection Assembly - 8700306187 - Non-Returnable
  
  • LOC 3880 • Part Works For
  
  87003061875P • View Detail • Free Shipping Eligible
  
  $24.95
- $24.95
  
  Qty
- v11736
- Bosch Therm 520 PN Piezo Clip - 8701201019 - Non-Returnable
  
  • LOC 3870 • Part Works For
  
  87012010195P • View Detail • Free Shipping Eligible
  
  $6.75
- $6.75
  
  Qty
- v11737
- Bosch Therm 520 PN Piezo Ignitor - 8708108051 - Non-Returnable
  
  • LOC 3765 • Part Works For
  
  87081080515P • View Detail • Free Shipping Eligible
  
  $32.75
- $32.75
  
  Qty
- v11738
- Bosch Therm 520 PN Pilot Gas Pipe - 8700707369 - Non-Returnable
  
  • LOC 3902 • Part Works For
  
  87007073695P • View Detail • Free Shipping Eligible
  
  $18.95
- $18.95
  
  Qty
- v11740
- Bosch Therm 520 PN Secondary Fan Screw - 8703403012 - Non-Returnable
  
  • LOC 5135 • Part Works For
  
  87034030125P • View Detail • Free Shipping Eligible
  
  $11.25
- $11.25
  
  Qty
- v11741
- Bosch Therm 520 PN Flow Control - 8708500304 - Non-Returnable
  
  • LOC 3845 • Part Works For
  
  87085003045P • View Detail • Free Shipping Eligible
  
  $29.75
- $29.75
  
  Qty
- v11742
- Bosch Therm 520 PN Overheat Sensor - 8707206017 - Non-Returnable
  
  • LOC 3398 • Part Works For
  
  87072060175P • View Detail • Free Shipping Eligible
  
  $59.75
- $59.75
  
  Qty
- v11743
- Bosch Therm 520 PN Temperature Adjustment Knob - 8702000295 - Non-returnable
  
  • LOC 8160 • Part Works For
  
  87020002955P • View Detail • Free Shipping Eligible
  
  $23.95
- $23.95
  
  Qty
- v11744
- Bosch Therm 520 PN Temperature Limiter/ ECO Upper - 87172061620
  
  • LOC 3750 • Part Works For
  
  87072061325P • View Detail • Free Shipping Eligible
  
  $26.75
- $26.75
  
  Qty
- v11745
- Bosch Therm 520 PN Thermocouple/Flue Gas Sensor - 87072064450
  
  • LOC 3695 • Part Works For
  
  87072064455P • View Detail • Free Shipping Eligible
  
  $60.75
- $60.75
  
  Qty
- v11747
- Bosch Therm 520 PN Union Nut - 743301025 - Non-returnable
  
  • LOC 7082 • Part Works For
  
  87433010255P • View Detail • Free Shipping Eligible
  
  $8.95
- $8.95
  
  Qty
- v11749
- Bosch Therm 520 PN Volumetric Water Governor - 8705705034 - Non-Returnable
  
  • Also Known as Part Number 8705705034 • LOC 3718 • Part Works For
  
  87057050345P • View Detail • Free Shipping Eligible
  
  $73.75
- $73.75
  
  Qty
- v11750
- Bosch Therm 520 PN Water Connection Clip - 8701201020 - Non-Returnable
  
  • Also Known as Part Number 87012010200 • LOC 3815 • Part Works For
  
  87012010205P • View Detail • Free Shipping Eligible
  
  $6.75
- $6.75
  
  Qty
- v11751
- Bosch Therm 520 PN Water Filter Plug - 8700306148 - Non-Returnable
  
  • Also known as Part Number 87003061480 • LOC 3715 • Part Works For
  
  87003061485P • View Detail • Free Shipping Eligible
  
  $14.75
- $14.75
  
  Qty
- v11802
- Bosch Therm 520 PN Pilot Screen - 8700507067 - Non-Returnable
  
  • LOC 3975 • Part Works For
  
  87005070675P • View Detail • Free Shipping Eligible
  
  $22.95
- $22.95
  
  Qty
- v11753
- Bosch Therm 520 PN Water Valve Cover - 8705500105 - Non-Returnable
  
  • LOC 3825 • Part Works For
  
  87055001055P • View Detail • Free Shipping Eligible
  
  $72.75
- $72.75
  
  Qty
- v11754
- Bosch Therm 520 PN Water Valve Push Rod - 8703204051 - Non-Returnable
  
  • LOC 3790 • Part Works For
  
  87032040515P • View Detail • Free Shipping Eligible
  
  $6.75
- $6.75
  
  Qty
- v11755
- Bosch Therm 520 PN Water Valve Temperature Set Screw - 8703502039 - Non-Returnable
  
  • LOC 3865 • Part Works For
  
  87035020395P • View Detail • Free Shipping Eligible
  
  $19.75
- $19.75
  
  Qty
- v11756
- Bosch Therm 520 PN Water Valve Venturi - 8708205279 - Non-Returnable
  
  • LOC 3975 • Part Works For
  
  87082052795P • View Detail • Free Shipping Eligible
  
  $15.75
- $15.75
  
  Qty
- v11757
- Bosch Therm 520 PN Wire Form Spring - 8704705024 - Non-returnable
  
  • LOC 7090 • Part Works For
  
  87047050245P • View Detail • Free Shipping Eligible
  
  $3.75
- $3.75
  
  Qty
- v11720
- Bosch Therm 520 PN - Generator/Pipe O-Ring - 8700205023 - Non-Returnable
  
  • LOC 8145 • Part Works For
  
  87002050235P • View Detail • Free Shipping Eligible
  
  $4.95
- $4.95
  
  Qty
- v11746
- Bosch Therm 520 PN Tube - 8740609002 - Non-Returnable
  
  • LOC 3774 • Part Works For
  
  87406090025P • View Detail • Free Shipping Eligible
  
  $5.75
- $5.75
  
  Qty
- v11748
- Bosch Therm 520 PN Valve Operation Housing - 8708008069 - Non-Returnable
  
  • Part Works For
  
  87080080695P • View Detail • Free Shipping Eligible
  
  $56.75
- $56.75
  
  Qty
- v12939
- Bosch Therm 520 PN Water Elbow Fitting - 87007031140 - Non-Returnable
  
  • LOC 3120 • Part Works For
  
  87007031145P • View Detail • Free Shipping Eligible
  
  $90.75
- $90.75
  
  Qty
- v13679
- Bosch Therm 520 PN Compact Electromagnet - 8707201028 - Non-Returnable
  
  • LOC 3910 • Part Works For
  
  870720102852 • View Detail • Free Shipping Eligible
  
  $33.75
- $33.75
  
  Qty
- v11718
- Bosch Therm 520 PN Gas Valve Gasket - 8701004043 - Non-Returnable
  
  • LOC 3969 • Part Works For
  
  87010040435P • View Detail • Free Shipping Eligible
  
  $6.75
- $6.75
  
  Qty
- v11712
- Bosch Therm 520 PN Draft Diverter - 8705505442 - Non-Returnable
  
  • Part Works For
  
  87055054425P • View Detail • Free Shipping Eligible
  
  $98.75
- $98.75
  
  Qty
- v11713
- Bosch Therm 520 PN Electromagnet Cap - 8703305283 - Non-Returnable
  
  • Drop Ship From Mfg • Part Works For
  
  87033052835P • View Detail • Free Shipping Eligible
  
  $22.75
- $22.75
  
  Qty
- v11714
- Bosch Therm 520 PN Angle Bracket - 8708003192 - Non-Returnable
  
  • Drop Ship From Mfg • Part Works For
  
  87080031925P • View Detail • Free Shipping Eligible
  
  $22.75
- $22.75
  
  Qty
- v13217
- Bosch Therm 520 PN Ignitor Bracket - 8701302181 - Non-Returnable
  
  • Drop Ship From Mfg • Part Works For
  
  87013021815P • View Detail • Free Shipping Eligible
  
  $13.75
- $13.75
  
  Qty
- v11730
- Bosch Therm 520 PN NG Main Burner - 8708120618 - Non-Returnable
  
  • Drop Ship From Mfg • Part Works For
  
  87081206185P • View Detail • Free Shipping Eligible
  
  $119.75
- $119.75
  
  Qty
- v11732
- Bosch Therm 520 PN NG Throttle Disk Assembly - 8708500358 - Non-Returnable
  
  • Drop Ship From Mfg • Part Works For
  
  87085003585P • View Detail • Free Shipping Eligible
  
  $50.75
- $50.75
  
  Qty
- v15275
- Bosch Therm 520 PN LP Gas Valve - 87070213960 - Non-Returnable
  
  870702139600 • View Detail • Free Shipping Eligible
  
  $159.75
- $159.75
  
  Qty

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