Standard Universal Thermocouple 900mm Product Code: 89191

900mm. Will fit most gas boilers.


  • Must be Fitted by a Gas Safe Registered Installer


Length: 900mm.
Additional Information
Technical Specification
  • Brand : Unbranded
  • Product Length : 900 mm
  • Product Type : Standard Universal Thermocouple
  • Boiler Accessory Type : Thermocouplers
  • Total Product Weight : 0.053 kg
  • Pack Size : 1
  • Manufacturer Guarantee : 1 Year Guarantee
  • Pieces in Pack/Case : 1
Product Contents
Delivery & Returns


Standard delivery service up to 3 working days: €8.95

Free delivery on all orders over €70.00

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Hopefully you won't need to return an item, however, if you do, it is our aim to make this as simple as possible. By following the guidance below you can help us to help you when a product is not what you expected, or is faulty. Your statutory rights are not affected by this guidance.


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€6.75 Incl. 23% VAT

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Standard Universal Thermocouple 900mm is rated 4.4 out of 5 by 37.
Rated 4 out of 5 by from Fix Boiler Pilot Collected 30 mins after I placed the order online. Exactly what I wanted. Fit perfect. Boiler is running again 1 hour later. ACE. What more can I say.
Date published: 2018-07-21
Rated 5 out of 5 by from Boiler fixed! Needed this to replace one on an ancient boiler, luckily it was the therma couple that had gone so it was an easy fix. The part was easy to order and collect and I will be using Screwfix again.
Date published: 2018-03-16
Rated 5 out of 5 by from Boiler Spare I have an old gas boiler and keep this thermocouple as spare when the pilot fails good value
Date published: 2018-03-01
Rated 5 out of 5 by from Thermocouple Great simple repair with all the fittings you need.
Date published: 2018-02-06
Rated 1 out of 5 by from Only Lasted 3 Months Back in October 2017 we had our water cylinder replaced along with a filter added to our heating system. While the plumbing firm were doing the work and had the boiler opened up I decided to fit a new thermocouple at the same time since it had not been replaced for years. Bought this one from Screwfix and all worked fine but this morning the boiler failed to fire up (no pilot light). The side of the thermocouple tip had burned right through in only 3 months so it had to be replaced again. The original thermocouple that was taken out had a thicker tip so it seems that these cheap universal ones are not as well made. I've now got a Honeywell one as a spare and that looks much more substantial at the tip too.
Date published: 2018-01-22
Rated 2 out of 5 by from OK, just As someone else noted, they burn out fairly quickly, I've also tried the more expensive Super model, also burnt through in less than 12 months, prob not worth the extra. On the plus side the're available and easy to change, just keep a spare to hand.
Date published: 2017-11-26
Rated 4 out of 5 by from Good piece of kit Needed a new Thermocouple and as usual Screwfix had one. Came with an assortment of unions but I use the old ones as I know they screw in OK. The coil seemed well wound but it un-coiled OK and shaped easily to fit to the boiler. Heating up and running again in no time.
Date published: 2017-11-25
Rated 5 out of 5 by from thermocouple Took a while to order online.Wouldn't let me pay.took several times.Then discovered that I personally had to go and pick up.Couldn't send my husband on his way to work.Never had this problem when using click and collect.
Date published: 2017-11-03
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