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TCL 55S421 (Service No 55S421LDAA) Complete TV Repair Parts Kit

SKU:
sj-KIT-55S421-K1
Was
$49.99
(You save $28.65)
$21.34
Was
$49.99
(You save $28.65)
$21.34
180-Day Warranty
Ships same business day if ordered before 4pm CT!
We highly recommend matching your part number. Learn more
PLEASE NOTE: There are multiple different versions of these TCL models. Please match all boards shown to the originals in your TV before ordering.

TCL 55S421 (Service No 55S421LDAA) Complete TV Repair Parts Kit
Parts Included
  • TCL 40-MST10F-MAA2HG-G1
  • TCL 07-RT8812-MA2G
  • Tcl 08-L12NLA2-PW200AA

Known Models

BrandModelsVersions
TCL55S42155S421LDAA
55S421LDAANULL
55S421TDAA
55S425
55S425LFAA
55S425LHAA
Warranty:
180-Day Warranty
Manufacturer Part Number:
TCL 55S421LDAA-MAIN
Manufacturer Part Number:
08-SS55TML-LC324AA
Manufacturer Part Number:
TCL 08-L12NLA2-PW200AA
Manufacturer Part Number:
TCL 07-RT8812-MA2G

What is a TV repair kit?

TV repair kits typically contain every board in your TV (excluding LED strips). If you’re unsure of your diagnosis, you can order this kit and replace all of the boards in your TV.

Which symptoms does a TV repair kit fix in a TV?

•  A TV repair kit can fix most symptoms in your TV, from no power to no video or audio to WiFi issues.

*These are helpful tips to get you started and don’t represent accurate diagnoses for every TV model and failure. If you’re unsure of your diagnosis, we recommend checking out our YouTube channel or reaching out to a local TV technician for assistance.

How easy is it to replace a TV repair kit?

It's easy! Once you match the part numbers on your boards with the part numbers listed on this page to confirm compatibility, you’ll just need a screwdriver and the ability to remove the back of your TV and replace the boards.

Make an Offer on this Item!

Please enter your email address and a fair price for this item. We will evaluate your offer within one business day and reply via email. Thanks!

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Please note that a ShopJimmy Extended Warranty can’t be included in an offer price or added to an accepted/countered offer. Thanks for your understanding.

Need more quantity?

Please add your email and the quantity you need below. While we can’t guarantee that we’ll be able to get our hands on this amount, we’ll do our best and reply to you as soon as we can. Thanks!

We recommend matching the part number on your original part with the part number listed on this page to ensure compatibility.

While matching your model number is a great start, many models use variations of each part and they're not always interchangeable.

We include brief instructions in red text on some listings (also displayed below without the red font). Please look for these instructions to confirm any important info that you'll need to identify on your original part. Additionally, we highlight the part number in our photos.

Please don't hesitate to contact us with any questions. We're here to help!

PLEASE NOTE: There are multiple different versions of these TCL models. Please match all boards shown to the originals in your TV before ordering.

TCL 55S421 (Service No 55S421LDAA) Complete TV Repair Parts Kit
Parts Included
  • TCL 40-MST10F-MAA2HG-G1
  • TCL 07-RT8812-MA2G
  • Tcl 08-L12NLA2-PW200AA

Known Models

BrandModelsVersions
TCL55S42155S421LDAA
55S421LDAANULL
55S421TDAA
55S425
55S425LFAA
55S425LHAA

This item is available for pre-order and will ship by the date listed on this page.

Please order this item separately from other items you need. If you add this item to an order with other items, the order won’t ship until the date listed on this page.

Please contact us with any questions. Thanks!

29312 certified reviews
29.3K
4.5 star rating
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5.0 star rating 09/06/22
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Shipping packaging great and reliable. a
Shipping packaging great and reliable. a great company to do business with. Thank you
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5.0 star rating 04/04/25
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First time buying from you and I will be back. Very happy with the online process, tools, followup and all. Thanks!
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5.0 star rating 03/26/25
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Sandy M.
5.0 star rating 04/04/25
The part came quickly and
The part came quickly and the price was a fraction of the cost for a new part. I'm very happy.
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5.0 star rating 09/06/22
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