5TIME-SERT® M14 x 1.25 Spark Plug Thread Repair Kit – 15.3mm Inserts

Professional TIME-SERT® M14 x 1.25 Spark Plug Thread Repair Kit designed for applications requiring a 15mm insert length. Ideal for restoring damaged or stripped spark plug threads in aluminium cylinder heads. Engineered for precise, permanent and load-bearing repairs suitable for professional workshops and DIY mechanics alike.

Browse all TIME-SERT® Metric Thread Repair Kits

Key Features

Designed for 15mm Inserts
Specifically engineered for spark plug applications requiring a 16.8mm insert length.
Genuine TIME-SERT® Quality
Solid bushing insert system trusted by professional mechanics and engine builders worldwide.
Permanent Spark Plug Repair
Restores original thread strength while resisting vibration, heat and future thread damage.
Workshop & DIY Ready
Complete kit designed for precise and reliable cylinder head thread restoration.
Product Summary
Brand: TIME-SERT®
Thread Size: M14 × 1.25
Insert Length: 15.3mm
Insert Part Number: 44129
Application: Spark Plug Thread Repair
VAT invoice provided

What’s Included

  • TIME-SERT® M14 x 1.25 Thread Repair Tools
  • 15mm Length Inserts (p/n 44129)
  • Installation tooling for spark plug thread repair
  • VAT Invoice
View TIME-SERT® Copper Inserts Here

Important Notes

Always confirm spark plug thread size and insert length before installation. Designed for permanent repair in aluminium cylinder heads. Follow TIME-SERT® installation procedures for best results.

Fast dispatch • VAT invoice provided • Genuine TIME-SERT®
Postage & Packaging
30 Day Money Back Guarantee
Contact Us

Of course, we want you to buy as many goods as possible from our shop. If you want to buy more than one of a particular product or multiple items, we will always try to combine postage and packaging costs.

Due to charges levied by our delivery agents, some Highland & Island locations incur a surcharge when being delivered by courier. In these instances, we will attempt to use an alternative delivery service, but this is not always possible.

If your postcode is listed below, please contact us prior to purchasing goods and we can confirm the cost of shipping:

  • AB, BT, DD, DG, EH, FK, G, GY, HS, IM, IV, KA, KW, KY, ML, PA, PH, TD, ZE, all Islands.

Ace Consumables ship most goods within 24hrs of cleared payment on a next-day delivery service* (Friday pm–Sunday orders ship Monday).

Orders received before 11:30am are usually shipped the same day. Services used include:

  • Royal Mail Tracked 24
  • Royal Mail Tracked 48
  • Courier Delivery (48hr*)
  • Courier Delivery (24hr*)

Most customers receive their orders within 2–4 days. If goods have not been delivered after 4 days, please contact us.

*The following postcodes may take an additional day or two:

  • AB, BT, IV, KW, PA, PH, all Islands.

Disclaimer: Ace Consumables reserve the right to change the terms at any time.

Visit Our Shop: Click here to view all our items

Browse Our Categories: