Lisle Pneumatic Fan Clutch Wrench Set — 10 pc air-hammer kit, fits Ford/GM/VW/BMW clutch nuts

This kit replaces slower, conventional fan-clutch tools by providing nine dedicated driving wrenches sized to match a wide range of domestic and import vehicles. Built for use with an air hammer, the Lisle 43350 lets technicians and DIYers break free stuck fan-clutch nuts quickly while minimizing time under the hood. The set covers common sizes for Ford, GM, VW, BMW, Chrysler and newer International models, consolidating the most-needed adapters into one compact kit.

Which vehicles and applications does this set cover?

The Lisle 43350 targets passenger cars, light trucks and some commercial units that use threaded fan clutches. Its nine driving wrench sizes match many OEM clutch nut diameters so you rarely need improvised tools or excessive force.

• Compatibility includes Ford, GM, Volkswagen, BMW, Chrysler and newer International models
• Useful for removal and installation of threaded engine fan clutches
• Designed to work with an air hammer to vibrate loose seized nuts

How do I use these wrenches with an air hammer safely and effectively?

Attach the appropriate driving wrench to the fan clutch, then operate an air hammer to apply short, controlled impacts. The pulse from the air hammer breaks corrosion and thread locking without requiring excessive manual torque, but aim for steady, careful strikes to avoid damaging the clutch or surrounding components.

• Select the wrench that fits the clutch nut snugly (sizes listed below)
• Use short impact bursts rather than continuous hammering
• Support nearby parts and protect delicate components while working

What sizes are included and how do they handle different clutch nuts?

The set includes nine driving wrenches sized to cover metric and imperial clutch nut diameters. Having both small and large sizes in one kit reduces trips to the parts store and prevents makeshift solutions that can round nuts.

• Driving wrench sizes: 7/8", 32mm, 36mm, 40mm Thin, 47mm, 1-7/8", 2", 52mm, 2-1/8"
• Covers common OEM dimensions for a broad range of vehicles
• Full kit avoids need for aftermarket improvised sockets or cutters

What should I expect in terms of durability and storage?

Lisle tools are engineered for professional and home-shop use; these wrenches are made to withstand impact from pneumatic tools while retaining fit and finish. The components store neatly in a compact case or tray to keep sizes organized and protect edges from damage.

• Ten-piece count includes nine driving wrenches for broad coverage
• Robust construction tolerates repeated air-hammer impacts
• Compact kit layout simplifies selection and storage between jobs

Who this is for: The Lisle 43350 is aimed at professional mechanics, fleet technicians and knowledgeable DIYers who regularly service cooling systems or replace fan clutches. If you work on multiple vehicle makes, frequently encounter seized or rusted fan-clutch nuts, or prefer the speed of pneumatic removal over manual methods, this kit will save time and reduce the risk of rounded fasteners. It’s not a substitute for correct technique—pair the set with an appropriate air hammer and standard safety procedures for best results.