The Truck and Trailer Pin Master Cleaner Set is a complete solution for cleaning and restoring all common North American trailer connectors. Featuring a patented design, this set includes specialized tools to clean both male and female pins on 4/5 flat, 6-way round, 7-way spade (flat), and 7-way round terminals—plus bullet and butt connectors used in marker and tail light assemblies. 

Precision cleaning maintains proper pin dimensions, improves signal continuity, and extends harness life. Packaged in a leather-style holster with a magnetic clasp, the set also includes custom-sized swabs for internal debris removal. Perfect for preventive maintenance and field repair.

Features and Benefits:

• Patented tools clean and resize both male and female pins
• Maintains signal continuity and prevents circuit failures
• Includes swabs for debris removal in butt, bullet, and pin connectors
• Comes in a rugged leather-style holster with magnetic clasp
• Cleans 4/5 flat, 6-way round, and 7-way flat/round trailer connectors

Includes:

• 4/5 Pin Terminal Cleaner (#8021) • 6-Way Round Pin Terminal Cleaner (#8022) • 7-Way Flat (Spade) Pin Terminal Cleaners (#8023) • 7-Way Round Pin Terminal Cleaners (#8024) • SWAB-EEZ® (8mm – #30025-1, 6.5mm – #9023, 5mm – #9011) • Quality Leather Holster (#POU02)