Lettry Tyre Valve Stem Core Tool Kit, 38‑Piece Portable TR412/TR413/TR414 Set with T‑Hook & Push Rod

Lettry 38-piece Tire Valve Stem Core Tool Kit is a complete, portable set for removing, installing, and protecting valve cores on TR412/413/414 stems.

This compact kit gathers every basic tool you need to service common valve stems on cars, light trucks, lawn mowers, ATVs and small trailers. The 38 pieces include multiple valve cores in TR412/TR413/TR414 sizes, a T-hook extraction tool, a push-rod installer with tapered alignment tube, extra caps, and handy removal heads—packaged for toolbox storage or roadside use. Built from metal and durable plastic, the components are meant for repeated field repairs while staying lightweight and easy to carry.

How do I use this kit to replace a leaking valve core?

Replacing a valve core is straightforward and requires no special training. Deflate the tire fully, extract the old core with the T-hook or dual-head removal tool, align the tapered tube, and press the new core into place with the push rod.

• Fully deflate tire before starting to avoid injury or damage.
• Use the T-hook or dual-head tool to remove the worn core cleanly.
• Mount a new TR412/TR413/TR414 core on the push rod and align with the tapered positioning tube.
• Push and rotate the rod to seat the new core, then add a valve stem cap to protect it.

Which vehicles and valve stems are compatible with this set?

The kit works with most tires that accept valve stems with an 11.3mm (0.453 in) rim hole and standard TR412, TR413, or TR414 cores. It is ideal for typical passenger vehicles, small trailers, ATVs, lawn mowers and many light trucks, but it excludes larger commercial valve cores and TPMS-equipped valves.

• Compatible: TR412, TR413, TR414 valve cores and stems.
• Vehicle fit: cars, light trucks, ATVs, lawn mowers, small trailers, trolleys.
• Limitations: not for 5/8" (15.8mm) oversized valve cores or TPMS sensors.
• Rim hole requirement: approximately 11.3mm (0.453 in).

What tools are included and how do they help roadside repairs?

The set contains specialized hand tools and spare cores to perform fast valve servicing without extra trips to a shop. The push rod and tapered tube make installation accurate, while multiple removal heads and the T-hook let you extract stuck or corroded cores quickly.

• 1 push rod and 1 tapered positioning tube for precise installation.
• T-hook and dual-head removal tools for extracting stubborn cores.
• 4 TR412, 4 TR413, 4 TR414 cores plus 10 extra cores for replacements.
• 10 valve stem caps, a 4-way valve tool, glove and instruction manual included.

Who is this for: The Lettry 38-piece kit is made for DIYers, roadside improvers, fleet owners, and anyone who maintains small vehicles and outdoor equipment. If you frequently handle tire maintenance on passenger cars, ATVs, lawn equipment or small trailers and want a consolidated kit for quick valve-core swaps, this set offers the tools and spare parts to keep you rolling. Avoid using it on vehicles with TPMS or oversized commercial valve cores; for those applications, seek a specialized toolset designed for sensor-equipped or heavy-duty tires.