Loksun

Loksun Valve Spring Compressor Set

High-performance automotive accessories made for confident daily results

$34.98

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Why customers choose NorthTrail Auto

Loksun 12PCS Valve Spring Compressor Set is a full kit for removing, installing and lapping valve springs across motorcycles, ATVs, cars and small engines.

This compact toolkit supplies the clamps, five interchangeable pushers, two valve lappers, extension rods and a hand lever needed to compress and service valve springs on most cylinder heads. Built from hardened metal with a black-oxide finish and packed in a molded plastic case, the set is made to resist rust and stay organized in a garage or toolbox.

How does the Loksun set make valve spring removal easier?

The kit replaces awkward improvised methods with a purpose-made C-clamp compressor and matched pusher adapters that align with valve retainers. The hand lever and extension rods give better reach and control when working on tight cylinder-head spaces.

  • Includes a robust C-clamp compressor for steady compression
  • Five pusher adapters (16/19/23/25/30 mm) to fit most valve springs
  • Extension rods and a hand lever for deeper or recessed valves
  • Two valve lappers to seat valves precisely after grinding

Which engines and vehicles will these tools work on?

The Loksun compressor set is designed for broad compatibility with motorcycles, ATVs, cars and many small engines. The range of adapter sizes covers common valve-retainer diameters used on single- and multi-cylinder heads.

  • Suitable for motorcycles and scooters with standard valve sizes
  • Fits ATVs, small cars and light-duty engine cylinder heads
  • Able to handle most single- and multi-valve assemblies with included adapters
  • Useful for both OEM and aftermarket valve-retainer styles within size limits

What materials and build features ensure durability and safe use?

Each metal component is finished in black-oxide to resist surface corrosion and provide a durable working finish. Threaded and load-bearing parts are made to withstand repeated compression cycles so the tool remains reliable under shop use.

  • Hardened metal construction for load resistance and longevity
  • Black-oxide finish for rust resistance and reduced glare
  • Molded storage case protects parts and prevents loss of small pieces
  • Ergonomic hand lever and solid C-clamp design for stable operation

How do I use the Loksun valve spring compressor safely and effectively?

Position the C-clamp over the valve spring, select an adapter that matches the retainer, and compress slowly until the keepers can be removed. Use the extension rods or hand lever when additional reach or mechanical advantage is needed; always follow standard safety steps like removing valve-cover components and working one cylinder at a time.

  • Select the correct adapter for the valve-retainer diameter
  • Compress until you can lift out valve keepers, then release evenly
  • Use lappers to seat valves after installation, testing for proper contact
  • Keep springs and keepers organized during reassembly to avoid mistakes

Who is this for: The Loksun 12PCS Valve Spring Compressor Set is aimed at DIY mechanics, home garage enthusiasts and professional technicians who work on motorcycles, ATVs, passenger cars and small engines. If you frequently perform valve maintenance, head repairs, or engine rebuild tasks and need a compact, durable set that covers multiple valve sizes and provides lapping capability, this kit is a practical addition to your toolbox. Its molded carry case and wide adapter range also make it a good choice for mobile mechanics and hobbyists seeking a single set that handles most common valve-spring jobs.

FAQ

Q: Does this set fit most valve sizes?

A: Yes. The five pusher adapters (16/19/23/25/30 mm) cover the common valve-retainer diameters found on many motorcycles, ATVs and small cars.

Q: Is the set corrosion resistant?

A: The tools use a black-oxide finish for improved surface rust resistance and durability in a workshop environment.