KEX KEX-378 Nail Hole Insert, Pull-Thru, 1/4" Stem (20/Box)

$20.23

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KEX 378 tire repair insert with pilot wire stem for nail hole patches

Tire Repair Kit Professional Solution - KEX 378 Pull-Through Tire Insert (1/4" Stem, 20/Box)

KEX 378 tire repair insert - Permanent puncture repair for passenger and light truck tires

The KEX 378 tire repair insert is a professional-grade tire repair kit component that creates permanent puncture repairs using an integrated pilot wire design. Each box contains 20 pull-through inserts with 1/4" stems specifically engineered for nail holes and small punctures in passenger car and light truck tires. Unlike temporary tire plugs that can fail, this tire repair system delivers the long-lasting solution tire shops rely on for safe, permanent repairs.

Key Advantages of KEX 378 Tire Repair System

Professional Installation Made Simple - The molded pilot wire guides the insert precisely into the puncture hole, eliminating installation guesswork and reducing repair time compared to standard tire plug kits that require multiple attempts.

Permanent Tire Puncture Solution - Creates a reliable, airtight seal when used with KEX 511F tire patch cement, providing a repair that lasts the life of the tire rather than failing after thousands of miles like temporary roadside fixes.

Tire Shop Quality Results - Meets industry standards for permanent tire repairs, giving DIY mechanics access to the same professional-grade tire repair tools used by certified tire technicians for dependable puncture repairs.

Perfect Applications for Professional Tire Repair

Ideal for tire repair shops, fleet maintenance, and DIY tire repair projects:

Nail punctures in passenger vehicle tires requiring permanent fixes.
Small screw holes and similar punctures in light truck tires.
Professional tire service shops offering reliable tire repair services.
Fleet vehicle maintenance programs needing cost-effective tire repairs.
DIY mechanics seeking tire shop quality results at home.
Mobile tire repair services requiring dependable field repair solutions.

Technical Specifications - KEX 378 Tire Insert

KEX 378 Nail Hole Insert Complete Specifications
Specification	Details
Stem Size	1/4" (6mm) diameter
Quantity	20 pieces per box
Dimensions	N/A
Weight	N/A
Design Type	Pull-through with integrated pilot wire
Compatible Cement	KEX 511F flammable chemical cement (required)
Vehicle Compatibility	Passenger cars and light trucks
Maximum Angle	Up to 25 degrees (use two-piece repair for steeper angles)

How to Install KEX 378 Tire Repair Insert

Remove the nail or puncturing object from the tire completely.
Clean the puncture hole using proper tire repair preparation tools.
Insert the KEX 378 using the pilot wire to guide placement through the puncture.
Apply KEX 511F tire patch cement generously over the stem area inside the tire.
Install the appropriate tire patch over the stem to complete the permanent repair.
Allow cement to cure according to manufacturer specifications before inflating tire.

Get Professional Tire Repair Results Every Time

Stop relying on temporary tire plugs that fail when you need them most. The KEX 378 tire repair insert delivers the permanent, professional-grade solution that keeps your tires safe and roadworthy for years to come.

Order your KEX 378 tire repair inserts today for reliable, long-lasting puncture repairs.

Frequently Asked Questions

How does this compare to standard tire plugs or string repairs?

The KEX 378 creates a permanent stem-and-patch system rather than a temporary plug. While tire plug kits provide quick roadside fixes, this insert with proper cement delivers a repair that meets tire industry standards for permanent puncture repairs, lasting the life of the tire.

Can I use this for DIY tire repair at home?

Yes, the KEX 378 works for DIY tire repair, but you'll need tire removal tools, access to the inner tire surface, and KEX 511F cement. The pilot wire makes installation easier than traditional methods, giving home mechanics professional-quality repair results.

What size punctures can the 1/4" stem repair?

The 1/4" stem handles typical nail punctures and small screw holes in passenger and light truck tires. It works for puncture angles up to 25 degrees and is specifically designed for common roadway debris injuries. Larger punctures or steeper injury angles require KEX's two-piece repair system instead.

Do I need special cement with these tire repair inserts?

Yes, KEX specifically requires their 511F flammable chemical cement for optimal bonding and durability. Using the correct tire patch cement ensures the repair meets professional standards and provides maximum safety. Allow proper curing time as specified on the cement packaging for best results.

About the Brand

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