Standard Ignition US-66L Ignition Lock Cylinder

Ignition Lock Cylinder for Classic Jeep and GM Vehicles

The Standard Ignition US-66L ignition lock cylinder is a coded replacement built for precise installation and dependable key operation. It is engineered with solid brass tumblers, chrome-plated brass keys, and a die-cast zinc lock core to match original equipment fit and function.

Compatible with a wide range of classic Jeep, Buick, Cadillac, Oldsmobile, and Pontiac applications, this ignition lock cylinder is a direct-fit solution for column-mounted ignition systems. The US-66L is also supported by included instructions and keyed operation for straightforward service work.

Key Features

• Coded ignition lock cylinder for original-style key matching
• Solid brass tumblers for consistent internal operation
• Chrome-plated brass keys included
• Die-cast zinc lock core construction
• Mounts in the steering column
• Instructions included for installation reference
• Standard Ignition US-66L for classic vehicle ignition repair

Detailed Product Overview

Standard Ignition US-66L is built for technicians and restorers who need a replacement ignition lock cylinder that follows the original design closely. The coded layout helps maintain proper key indexing, while the brass and zinc construction supports smooth cylinder movement and reliable service in older ignition systems. This part cross-references Dorman OE Solutions 926-070 for the same application.

Fits 1974-1984 Jeep Cherokee, 1976-1984 Jeep CJ7, 1984 Jeep Grand Wagoneer, 1974-1984 Jeep J10, 1974-1984 Jeep J20, 1981-1984 Jeep Scrambler, 1973-1984 Jeep Wagoneer, and 1973-1983 Jeep CJ5. It also fits 1969 Buick LeSabre, Riviera, and Skylark; 1969 Cadillac Commercial Chassis, DeVille, Eldorado, and Fleetwood with tilt steering wheel and chrome finish; 1969 Oldsmobile 98, Cutlass, Cutlass Supreme, Delta 88, and Toronado; plus 1969 Pontiac Acadian, Bonneville, Catalina, Firebird, Grand Prix, GTO, Laurentian, LeMans, Parisienne, and Tempest.

Common Repair Uses

• Worn or sticking ignition lock cylinder
• Key that no longer turns smoothly in the column
• Broken or inconsistent ignition cylinder operation
• Replacement after ignition lock wear in classic Jeep, Buick, Cadillac, Oldsmobile, or Pontiac models
• Restoration of original-style keyed ignition function

Installation Notes and Tips

This ignition lock cylinder mounts in the steering column and includes instructions. Verify the vehicle’s original ignition style, column configuration, and model-year application before installation. For 1969 Cadillac Fleetwood, confirm the tilt steering wheel and chrome finish requirement listed in the fitment notes. Standard Ignition US-66L is coded, so key matching should be checked during service.

Quality Assurance

Standard Ignition develops ignition components with a focus on correcting common failure points found in original equipment designs. The US-66L uses professional-grade materials and construction intended to support accurate fitment and dependable operation in service.