Lettry Tire Valve Stem Core Tool Kit — 38‑Piece Repair Set for Cars, Trucks & ATVs (TR412/TR413/TR414) with Extra Cores & Caps

The Lettry 38-piece Tire Valve Stem Core Tool Kit is a complete, portable set for removing, installing and protecting valve cores on cars, light trucks, ATVs and lawn mowers that use TR412/TR413/TR414 stems.

This kit groups every common valve-core accessory you need for roadside fixes and routine tire maintenance into one compact case. Tools are metal and durable plastic, sized for standard 11.3 mm (0.453 in) rim holes, and include multiple replacement cores and caps to get you back on the road quickly. The kit emphasizes easy operation and practical compatibility while noting clear limitations for larger valve systems and TPMS-equipped tires.

How will this kit help me fix a leaky valve core quickly?

The Lettry kit provides specialized tools that remove worn cores and install replacements without dismounting the tire from the rim. A T-hook and dual-head removal tool extract damaged cores; the push rod and tapered positioning tube make new-core alignment fast and secure. Included spare cores and caps let you finish repairs immediately and protect the valve afterward.

• T-hook and dual-head remover for quick core extraction
• Push rod and tapered tube for precise core insertion
• 10 extra valve cores plus 10 valve stem caps for immediate replacement
• Clear step-by-step instructions and a work glove for safe handling

Which vehicles and valve stems are compatible with this kit?

This set is designed for common automotive and small-vehicle valves using TR412, TR413, and TR414 stems with rim holes of approximately 11.3 mm (0.453 in). It suits cars, light trucks, trailers, trolleys, lawn mowers and many ATVs. It is not suitable for larger 5/8" (15.8 mm) valve cores or tires fitted with Tire Pressure Monitoring Systems (TPMS).

• Fits TR412/TR413/TR414 valve stems in most passenger vehicles
• Works with small trailers, lawn care equipment and ATVs
• Not compatible with 5/8" (15.8 mm) valves or TPMS valves
• Check rim hole diameter before use to confirm fit

What tools and parts are included, and why each matters?

The set contains 38 pieces selected to cover routine valve work from extraction to protection. Multiple core sizes and a four-way valve tool give flexibility for installation and removal, while specialty pieces like the tapered positioning tube help prevent cross-threading and misalignment. The glove and instruction manual reduce the chance of injury or user error during repairs.

• Valve core push rod and tapered positioning tube for safe installs
• 4-way valve tool and dual-head removal tool for versatile operation
• 19 valve cores (including 10 extra) and 10 protective caps
• Work glove and manual for convenience and safer handling

How easy is the kit to carry and use away from the shop?

The Lettry kit is lightweight and compact, designed to fit in a glovebox or roadside toolbag for emergency repairs. Metal and tough plastic components resist deformation so they remain reliable after repeated use. No professional training is needed—follow the five-step procedure in the manual to replace a core safely once the tire is fully deflated.

• Compact case fits most gloveboxes or toolkits for roadside access
• Durable metal and plastic components for longer service life
• Simple five-step instructions aimed at non-professionals
• Includes glove to protect hands during roadside repairs

Who is this for: The Lettry 38-piece valve stem core kit is built for drivers, fleet operators and homeowners who maintain small equipment and vehicles—anyone who wants an all-in-one valve repair solution without visiting a shop. It’s ideal for passenger cars, light trucks, trailers, lawn mowers and ATVs that use TR412/TR413/TR414 valve stems and for people who prefer to carry a compact emergency kit for fast, on-site valve repairs. Avoid using this set on larger 5/8" valve systems or wheels fitted with TPMS; in those cases, consult a professional or a specialized tool.