Atag Q-series spare parts
Original parts for the Atag Q-series series: 21 models, 226 different parts, 111 of them in stock. Below you will find the most frequently replaced parts by type first; choose your exact model for the complete list with exploded view.
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Instalpunt supplies 226 original parts for the Atag Q-series (Q25CR | from 2020 OSS2, Q25C | from 2005 OSS2, Q25SC 200N OSS1, Q25SC 380N OSS1 and 17 andere models), with Atag manufacturer part number and price van €16.15 to €1,623.19. In-stock items usually arrive within 3–5 working days, made-to-order items within 5–7 working days (a longer lead time is shown on the product page).
- 4 November 2026Price level
Other Atag series: Atag A-seriesAtag i-series (iCon)Atag E-seriesAtag P-series (iCon)Atag Blauwe EngelAtag XL-series
Choose your Atag Q-series model
- Atag Q25CR | from 2020 OSS2114 parts · exploded view
- Atag Q25C | from 2005 OSS2104 parts · exploded view
- Atag Q25SC 200N OSS1119 parts · exploded view
- Atag Q25SC 380N OSS1111 parts · exploded view
- Atag Q25SR | from 2020 OSS198 parts · exploded view
- Atag Q25S | from 2005 OSS187 parts · exploded view
- Atag Q30CC | from 2006 OSS2101 parts · exploded view
- Atag Q38CR | from 2020 OSS2114 parts · exploded view
- Atag Q38C | from 2005 OSS2103 parts · exploded view
- Atag Q38SC 200N OSS1116 parts · exploded view
- Atag Q38SC 380N OSS2107 parts · exploded view
- Atag Q38SR | from 2020 OSS2116 parts · exploded view
- Atag Q38S | from 2005 OSS289 parts · exploded view
- Atag Q42CR | from 2020 OSS3115 parts · exploded view
- Atag Q42C | from 4-2009 OSS3102 parts · exploded view
- Atag Q51CR | from 2020 OSS3115 parts · exploded view
- Atag Q51C | from 2005 OSS3103 parts · exploded view
- Atag Q51SR | from 2020 OSS3101 parts · exploded view
- Atag Q51S | from 2005 OSS389 parts · exploded view
- Atag Q60SR | from 2020 OSS4101 parts · exploded view
- Atag Q60S | from 2005 OSS489 parts · exploded view
Quick left to the right part
| Part | From | Delivery |
|---|---|---|
| Fan Atag fan assembled 24V DC SHR15/24/35 | €217.03 | In-stock items usually arrive within 3–5 working days, made-to-order items within 5–7 working days (a longer lead time is shown on the product page). |
| Ignition part Atag ignition electrode incl. seal Q and SHR after new heat exchanger 2013 from 2009 | €112.81 | In-stock items usually arrive within 3–5 working days, made-to-order items within 5–7 working days (a longer lead time is shown on the product page). |
| Pressure sensor Atag water pressure sensor Huba | €123.61 | In-stock items usually arrive within 3–5 working days, made-to-order items within 5–7 working days (a longer lead time is shown on the product page). |
| Temperature sensor Atag NTC return 10K | €42.07 | In-stock items usually arrive within 3–5 working days, made-to-order items within 5–7 working days (a longer lead time is shown on the product page). |
| Pump Atag pump UPMO 20-60 130 9u 230V MOD | €362.83 | In-stock items usually arrive within 3–5 working days, made-to-order items within 5–7 working days (a longer lead time is shown on the product page). |
| Burner control unit Atag burner control unit 1418 for ZGCHR | €574.51 | In-stock items usually arrive within 3–5 working days, made-to-order items within 5–7 working days (a longer lead time is shown on the product page). |
| Display Atag display PCB MCBA 1415 Q series | €151.15 | In-stock items usually arrive within 3–5 working days, made-to-order items within 5–7 working days (a longer lead time is shown on the product page). |
Prices incl. VAT, straight from the checkout. Choose your exact model below for the complete list.
Most frequently replaced parts
- Fans 6
- Sensors 3
- Temperature sensors and NTC sensors 3
- Pressure sensors 1
- Pumps 5
- Heat exchangers 1
- Gas valves and gas control 7
- PCBs and controls 1
- Burner control units 3
- Ignition and ionisation 3
- Expansion vessels 2
- Siphons and condensate drains 1
- Burners 3
- Displays and controls 2
- Filters 1
- Maintenance and service kits 6
- Valves 16
- Motors 1
- Electrical parts 3
- Tap parts 1
- Cables and wiring harnesses 15
- Gaskets and seals 37
- Pipes, tubes and hoses 30
- Casing and panels 14
- Insulation 1
- Fixing material 17
- Other parts 43
Fans for the Atag Q-series (6)
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Atag fan assembled 230V AC fits 9 models | 8135470 Mfr. no. S4310520 | €448.69 | In stock | View |
| Rewind refurbished fan for Atag 230V AC (S4310520) fits 9 models | 8930069 | €303.43 | In stock | View |
| Rewind refurbished fan for Atag 24V DC (S44427200) fits 8 models | 8930070 | €238.63 | In stock | View |
| Atag fan assembled 24V DC SHR15/24/35 fits 8 models | 8135480 Mfr. no. S4442720 | €217.03 | In stock | View |
| Atag fan 230V fits 4 models | 8139182 Mfr. no. S4742800 | €330.43 | In stock | View |
| Rewind refurbished fan for Atag A/E series (S4742800) fits 4 models | 8930071 | €288.31 | Made-to-order item | View |
Sensors for the Atag Q-series (3)
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Atag sensor hot water cylinder/return T2-3-8-9 fits 13 models | 8135300 Mfr. no. S4309700 | €30.19 | In stock | View |
| Atag flow sensor/DHW T1 12k ohm fits 13 models | 8135000 Mfr. no. S4307420 | €48.01 | In stock | View |
| Atag flue gas sensor fits 13 models | 8135310 Mfr. no. S4339510 | €67.99 | Made-to-order item | View |
Temperature sensors and NTC sensors for the Atag Q-series (3)
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Atag NTC return 10K fits 8 models | 8139178 Mfr. no. S4746000 | €42.07 | In stock | View |
| Atag NTC flow 10K fits 8 models | 8139180 Mfr. no. S4745900 | €55.03 | In stock | View |
| Atag NTC hot water cylinder (external) SHR/Q series | 8136372 Mfr. no. S4358610 | €70.15 | Made-to-order item | View |
Pressure sensors for the Atag Q-series (1)
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Atag water pressure sensor Huba fits 21 models | 8135490 Mfr. no. S4466300 | €123.61 | In stock | View |
Pumps for the Atag Q-series (5)
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Atag pump UPMO 20-60 130 9u 230V MOD fits 4 models | 8135296 Mfr. no. S5033700 | €362.83 | In stock | View |
| Atag pump upm3 15-75 130 9u 230V solar fits 4 models | 8132219 Mfr. no. S4877600 | €531.31 | In stock | View |
| Atag pump upm 20-70 q fits 8 models | 8139840 Mfr. no. S4746300 | €632.83 | Made-to-order item | View |
| Atag pump motor UPMO 20-70 130 9U 230V fits 8 models | 8135291 Mfr. no. S5033800 | €407.11 | Made-to-order item | View |
| Atag pump 15/40 domestic hot water | 8139584 Mfr. no. S4738700 | €376.87 | Made-to-order item | View |
Heat exchangers for the Atag Q-series (1)
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Atag plate heat exchanger Q30CC | 8130014 Mfr. no. S4731900 | €331.51 | Made-to-order item | View |
Gas valves and gas control for the Atag Q-series (7)
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Atag gas control block type VK8115V fits 13 models | 8135130 Mfr. no. S4304700 | €209.47 | In stock | View |
| Atag gas control block fits 8 models | 8139183 Mfr. no. S4751900 | €225.67 | In stock | View |
| Atag venturi SHR24 for OSS1 fits 3 models | 8139089 Mfr. no. S4318810 | €111.19 | In stock | View |
| Atag venturi SHR 35 for OSS2 fits 9 models | 8136305 Mfr. no. S4318920 | €127.39 | Made-to-order item | View |
| Atag venturi SHR51/60 fits 9 models | 8139123 Mfr. no. S4319020 | €131.71 | Made-to-order item | View |
| Atag gas pipe cpl. oss2-4 S4722300 fits 7 models | 8135639 Mfr. no. S4722300 | €103.63 | Made-to-order item | View |
| Atag gas pipe cpl. qss1 S4722200 | 8135638 Mfr. no. S4722200 | €103.63 | Made-to-order item | View |
PCBs and controls for the Atag Q-series (1)
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Atag solar module 1418 AM6 fits 4 models | 8139134 Mfr. no. S4527800 | €341.23 | Made-to-order item | View |
Burner control units for the Atag Q-series (3)
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Atag control unit 5415 Q series fits 9 models | 8137099 Mfr. no. S4711200 | €692.77 | In stock | View |
| Atag burner control unit 1418 for ZGCHR fits 4 models | 8135275 Mfr. no. S4528000 | €574.51 | In stock | View |
| Atag burner control unit LMS14 Mini + stick S4999510 fits 2 models | 8130018 Mfr. no. S4999510 | €574.51 | In stock | View |
Ignition and ionisation for the Atag Q-series (3)
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Atag ignition electrode incl. seal Q and SHR after new heat exchanger 2013 from 2009 fits 21 models | 8138101 Mfr. no. S4710100 | €112.81 | In stock | View |
| Atag ignition transformer fits 8 models | 8138546 Mfr. no. S4851000 | €70.15 | Made-to-order item | View |
| Atag ignition cable set fits 8 models | 8138559 Mfr. no. S4863800 | €69.07 | Made-to-order item | View |
Expansion vessels for the Atag Q-series (2)
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Atag expansion vessel 12 litre for e.g. Blauwe Engel HR 39 S1095900 | 8139004 Mfr. no. S1095900 | €148.99 | In stock | View |
| Atag expansion vessel 18 litre 2,5bar fits 4 models | 8139570 Mfr. no. S4528200 | €312.07 | Made-to-order item | View |
Siphons and condensate drains for the Atag Q-series (1)
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Atag siphon complete SHR fits 21 models | 8136240 Mfr. no. S4451610 | €77.71 | In stock | View |
Burners for the Atag Q-series (3)
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Atag burner bed assy. OSS2 fits 9 models | 8138103 Mfr. no. S4714700 | €180.31 | In stock | View |
| Atag burner bed OSS3/4 natural gas fits 9 models | 8138129 Mfr. no. S4825600 | €400.63 | In stock | View |
| Atag burner cassette assy. 25kW for OSS1 fits 3 models | 8138102 Mfr. no. S4714600 | €136.03 | In stock | View |
Displays and controls for the Atag Q-series (2)
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Atag display PCB MCBA 1415 Q series fits 13 models | 8139128 Mfr. no. S4713600 | €151.15 | In stock | View |
| Atag rotary knob AVS37 S4967500 fits 8 models | 8135611 Mfr. no. S4967500 | €51.79 | Made-to-order item | View |
Filters for the Atag Q-series (1)
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Atag water filter fits 21 models | 8136265 Mfr. no. S4317500 | €52.87 | Made-to-order item | View |
Maintenance and service kits for the Atag Q-series (6)
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Atag maintenance set for OSS3/4 fits 4 models | 8139225 Mfr. no. S4784900 | €99.31 | In stock | View |
| Atag maintenance set for OSS2 fits 3 models | 8139216 Mfr. no. S4784800 | €83.11 | In stock | View |
| Atag maintenance set OSS2 with ignition electrode fits 3 models | 8139603 Mfr. no. S4785600 | €173.83 | In stock | View |
| Atag maintenance set OSS3/4 with ignition electrode fits 3 models | 8139604 Mfr. no. S4785700 | €185.71 | In stock | View |
| Atag maintenance set for OSS1 | 8139218 Mfr. no. S4784700 | €76.63 | In stock | View |
| Atag overhaul set insulation tube plate without adhesive fits 7 models | 8139066 Mfr. no. S5071600 | €196.51 | Made-to-order item | View |
Valves for the Atag Q-series (16)
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Atag safety relief valve Duco 3 bar fits 21 models | 8135200 Mfr. no. S4344630 | €45.85 | In stock | View |
| Atag automatic air vent chrome SHR for OSS1/2/3/4 fits 21 models | 8135041 Mfr. no. S4419110 | €70.15 | In stock | View |
| Atag mixing valve SHR fits 11 models | 8131121 Mfr. no. S4312500 | €99.31 | In stock | View |
| Atag safety relief pipe for inlet combination fits 9 models | 8131366 Mfr. no. S4338700 | €39.91 | In stock | View |
| Atag inlet combination including safety relief pipe fits 9 models | 8136400 Mfr. no. S4302220 | €112.27 | In stock | View |
| Atag inlet combination 8 bar fits 2 models | 8130104 Mfr. no. S4333510 | €90.67 | In stock | View |
| Atag fill and drain valve 1/2" fits 12 models | 8132060 Mfr. no. S1002200 | €59.35 | Made-to-order item | View |
| Atag union nut 15 compression fits 9 models | 8139870 Mfr. no. S1035700 | €31.27 | Made-to-order item | View |
8 more valves for the Atag Q-series: choose your exact model above for the complete list, or view all Atag valves.
Motors for the Atag Q-series (1)
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Atag Energion motor three-way valve fits 5 models | 8138504 Mfr. no. S4009500 | €170.59 | In stock | View |
Electrical parts for the Atag Q-series (3)
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Atag transformer for MCBA 1415D fits 13 models | 8135421 Mfr. no. S4324900 | €124.15 | In stock | View |
| Atag fuse 6,3 at h 250v (3 x ) fits 8 models | 8139872 Mfr. no. S4823100 | €31.27 | Made-to-order item | View |
| Atag switch SHR/solar gas combi 230V fits 4 models | 8139154 Mfr. no. S4348400 | €48.55 | Made-to-order item | View |
Tap parts for the Atag Q-series (1)
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Atag cartridge for three-way valve fits 14 models | 8130385 Mfr. no. S4268400 | €110.11 | In stock | View |
Cables and wiring harnesses for the Atag Q-series (15)
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Atag spark plug cable fits 18 models | 8135070 Mfr. no. S4323800 | €57.19 | In stock | View |
| Atag earth cable ignition fits 18 models | 8139223 Mfr. no. S4723200 | €26.95 | In stock | View |
| Atag ionisation cable for e.g. Q38C S4323900 fits 18 models | 8135160 Mfr. no. S4323900 | €60.43 | Made-to-order item | View |
| Atag wiring harness BE 2 SHR fits 13 models | 8135265 Mfr. no. S4398510 | €210.55 | Made-to-order item | View |
| Atag plug 2-pole black fits 8 models | 8135380 Mfr. no. S4320500 | €31.27 | Made-to-order item | View |
| Atag connecting cable AVS37-LMS S4869700 fits 8 models | 8135619 Mfr. no. S4869700 | €56.11 | Made-to-order item | View |
| Atag wiring harness cpl. conn. bl. qr S4967600 fits 8 models | 8135675 Mfr. no. S4967600 | €258.07 | Made-to-order item | View |
| Atag plug 3-pole grey fits 8 models | 8139103 Mfr. no. S4380900 | €34.51 | Made-to-order item | View |
7 more cables and wiring harnesses for the Atag Q-series: choose your exact model above for the complete list, or view all Atag cables and wiring harnesses.
Gaskets and seals for the Atag Q-series (37)
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Atag O-ring condensate tray/siphon fits 21 models | 8131368 Mfr. no. S4316400 | €25.87 | In stock | View |
| Atag sealing ring gas valve/venturi for OSS1/2/3/4 fits 21 models | 8139033 Mfr. no. S4337610 | €26.95 | In stock | View |
| Atag sealing ring venturi/fan for OSS1/2/3/4 fits 21 models | 8139034 Mfr. no. S4325610 | €26.95 | In stock | View |
| Atag lip ring outlet stub fits 21 models | 8139019 Mfr. no. S4472600 | €26.95 | In stock | View |
| Atag O-ring 2 pcs fits 21 models | 8131119 Mfr. no. S4312300 | €29.11 | In stock | View |
| Atag pump gasket 3/4" DN20 R38x25x2 mm 2 pcs fits 21 models | 8130150 Mfr. no. S1003810 | €23.71 | In stock | View |
| Atag gasket condensate/air box fits 21 models | 8130125 Mfr. no. S4339110 | €36.67 | In stock | View |
| Atag sealing ring intake fan SHR for OSS1/2/3/4 fits 21 models | 8135246 Mfr. no. S4309500 | €24.79 | In stock | View |
29 more gaskets and seals for the Atag Q-series: choose your exact model above for the complete list, or view all Atag gaskets and seals.
Pipes, tubes and hoses for the Atag Q-series (30)
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Atag swivel nut for filter M35 fits 21 models | 8136445 Mfr. no. S4259500 | €36.67 | In stock | View |
| Atag safety relief pipe for OSS1/2/3/4 fits 21 models | 8137040 Mfr. no. S4467300 | €47.47 | In stock | View |
| Atag coupling set hot water cylinder fits 13 models | 8137096 Mfr. no. S4272100 | €56.11 | In stock | View |
| Atag gas pipe fits 11 models | 8131305 Mfr. no. S4340510 | €58.27 | In stock | View |
| Atag flue gas adapter fits 9 models | 8139023 Mfr. no. S4500500 | €65.83 | In stock | View |
| Atag exhaust pipe 63° assembled SHR15/24 fits 4 models | 8135460 Mfr. no. S4499400 | €76.63 | In stock | View |
| Atag concentric connector 80/125 mm fits 4 models | 0650048 Mfr. no. AA1CA05U | €89.59 | In stock | View |
| Atag CH pipe grommet fits 21 models | 8139517 Mfr. no. S4310610 | €34.51 | Made-to-order item | View |
22 more pipes, tubes and hoses for the Atag Q-series: choose your exact model above for the complete list, or view all Atag pipes, tubes and hoses.
Casing and panels for the Atag Q-series (14)
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Atag door Q complete fits 20 models | 8138114 Mfr. no. S4731400 | €94.99 | In stock | View |
| Atag cover Control Tower fits 13 models | 8135355 Mfr. no. S4322600 | €75.55 | In stock | View |
| Atag cover control tower bottom S-HR fits 13 models | 8130031 Mfr. no. S4323000 | €35.59 | In stock | View |
| Atag hood control tower middle SHR fits 13 models | 8130032 Mfr. no. S4322900 | €28.03 | In stock | View |
| Atag hood control tower top closed S-HR fits 9 models | 8130033 Mfr. no. S4322800 | €34.51 | In stock | View |
| Atag housing control power fits 8 models | 8139611 Mfr. no. S4779400 | €229.99 | In stock | View |
| Atag top section VC 2010-10 fits 6 models | 8135170 Mfr. no. S4334910 | €153.85 | In stock | View |
| Atag top section VC 6940-10 fits 3 models | 8135180 Mfr. no. S4335010 | €266.17 | In stock | View |
6 more casing and panels for the Atag Q-series: choose your exact model above for the complete list, or view all Atag casing and panels.
Insulation for the Atag Q-series (1)
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Atag insulation set tube plate left and right Q/E for OSS1/2/3/4 fits 21 models | 8138109 Mfr. no. S4730900 | €36.67 | In stock | View |
Fixing material for the Atag Q-series (17)
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Atag closure control tower fits 21 models | 8135330 Mfr. no. S4323200 | €26.95 | In stock | View |
| Atag closure front control tower fits 21 models | 8135340 Mfr. no. S4323100 | €23.71 | In stock | View |
| Atag air box closure per piece fits 21 models | 8135350 Mfr. no. S4322500 | €24.79 | In stock | View |
| Atag screw taptite M5 x 8 mm ck-pd (3 x ) fits 21 models | 8139214 Mfr. no. S4167500 | €23.71 | In stock | View |
| Atag bolt M5 x 12 mm gr phase hexagon din7985 (5 x ) fits 21 models | 8139213 Mfr. no. S4418710 | €28.03 | In stock | View |
| Atag sealing cap exhaust pipe Ø13mm for flue gas measurement fits 17 models | 8136420 Mfr. no. S4521600 | €24.79 | In stock | View |
| Atag screw M5 x 12 mm hex socket countersunk (3 pcs) for OSS1/2/3/4 fits 13 models | 8139217 Mfr. no. S4440000 | €24.79 | In stock | View |
| Atag cap air vent SHR 3 pcs for OSS1/2/3/4 fits 21 models | 8139162 Mfr. no. S4380600 | €45.31 | Made-to-order item | View |
9 more fixing material for the Atag Q-series: choose your exact model above for the complete list, or view all Atag fixing material.
Other parts for the Atag Q-series (43)
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Atag filter cap fits 21 models | 8136440 Mfr. no. S4317610 | €47.47 | In stock | View |
| Atag clamping rod condensate tray for OSS1/2/3/4 fits 21 models | 8139052 Mfr. no. S4310700 | €34.51 | In stock | View |
| Atag burner toggle rod for OSS1/2/3/4 fits 21 models | 8139057 Mfr. no. S4310800 | €35.59 | In stock | View |
| Atag control tower rear fits 21 models | 8136060 Mfr. no. S4322700 | €83.11 | In stock | View |
| Atag condensate drain pipe fits 21 models | 8130886 Mfr. no. S4316500 | €35.59 | In stock | View |
| Atag water trap pressure sensor fits 16 models | 8137098 Mfr. no. S4325900 | €37.75 | In stock | View |
| Atag three-way valve body VC8010 (O-R) fits 14 models | 8135110 Mfr. no. S4308200 | €147.91 | In stock | View |
| Atag pipe nipple 1/2"x15 mm coupling gas pipe fits 12 models | 8136392 Mfr. no. S4493300 | €49.63 | In stock | View |
35 more other parts for the Atag Q-series: choose your exact model above for the complete list.
Fault code on your Atag Q-series?
Look up the fault code in our Atag fault code-database: for each code you see the cause and the part that usually needs replacing.
Atag Q-series error codes
Is there a code on the display? For each code: what it means for this series, what you can check yourself and which part is usually needed.