Lisle Valve Keeper Remover & Installer Kit 36050 — Compact 5/16"–3/8" Stem, Magnetic Retainer Tool

Lisle 36050 is a compact valve keeper remover and installer that quickly removes and installs valve keepers on overhead-valve engines with stems from 4.5–7.5 mm (5/16"–3/8").

The Lisle 36050 kit is a handheld spring-retainer tool engineered to speed cylinder head servicing by letting you push or tap keepers out and back into place without complex disassembly. A built-in magnet captures tiny keepers for safer handling, and the tool's smaller size accommodates tighter-valve applications such as many Toyota four-cylinder and Chrysler New World engines. Designed to work on the bench or on the vehicle, this Lisle tool reduces the fumbling and extra steps usually involved in valve work.

How does this tool simplify valve keeper removal?

Instead of compressing springs with bulky fixtures, the Lisle 36050 allows you to compress the retainer and tap or push the tool to dislodge keepers quickly. The magnet inside the body holds the keepers after release, preventing loss and saving time during reassembly.

• Push-or-tap operation eliminates need for specialized spring compressors
• Internal magnet secures keepers immediately after removal
• Compact head fits into tighter valve pockets on many engines

Will this work on my engine and valve stem sizes?

The kit fits most overhead-valve engines with valve stems measuring between 4.5 and 7.5 mm, equivalent to 5/16" to 3/8". It is specifically noted for compatibility with smaller applications like Toyota four-cylinder and Chrysler New World engines, where larger tools may not fit.

• Stem diameter compatibility: 4.5–7.5 mm (5/16"–3/8")
• Suitable for many modern overhead-valve passenger engines
• Smaller head size designed for confined valve cover clearances

How do you install keepers using this Lisle kit?

To install, preload the keepers into the retainer on the valve stem, then compress the retainer with the tool and push or tap the handle so the keepers seat into the valve groove. The tool’s controlled push reduces the chance of misseating and lets you verify keeper placement before removing the tool.

• Load keepers into retainer on valve stem before compressing
• Compress retainer with tool and push or tap to seat keepers
• Magnet feature reduces dropped or lost keepers during setup

Can I use this tool on the car or only on a bench?

The Lisle 36050 is built for both in-situ engine work and bench-top jobs. Its compact footprint and simple push/tap operation let you perform keeper service with the cylinder head installed, provided you have enough clearance to access the valve springs.

• Designed for on-car repairs when valve access is available
• Also useful on a bench for head rebuilds and component inspection
• Lightweight design helps maneuverability in engine bays

Who is this for: The Lisle 36050 Valve Keeper Remover & Installer Kit is aimed at professional mechanics, home garage enthusiasts, and anyone who performs routine valve service and wants a cleaner, faster method for removing and installing keepers. It is especially useful for technicians working on smaller four-cylinder engines or Chrysler New World applications where clearance is limited. If you frequently perform head work or want to avoid lost keepers and repeated disassembly, this tool simplifies the job and cuts downtime.