Engines and Components Engines, Blocks and Components

Helicoil

14-1.25MM INSERTS/PK 6

$30.59

SKU: H01G R513-10

Out of Stock
In Stock
Ships by Jun 18
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The Heli-Coil R513-10 is a pack of 6 free-running helical inserts designed for metal thread applications. Made from 304 stainless steel, these inserts have a right-hand thread direction and a tensile strength of 200,000 to 250,000 PSI.

These inserts are specifically designed as metric spark plug thread repair inserts, with a tap size of M14x1.25 and an internal thread size of M14 x 1.25. The free coil diameter is 0.688 inches, and the overall length is 0.750 inches. They are suitable for use in cars, trucks, and vans.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandHelicoil
Part NumberH01G R513-10

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy