C.T. Johnson Trailer Coupler Lock, 7/8" Span - Standard Steel or Stainless Steel Tab Style

The C.T. Johnson RC6 series Trailer Coupler Lock secures your trailer coupler against theft and unauthorized hookups, giving you peace of mind whether the trailer is parked at home, at a marina, or on the road. Built for a 7/8 inch coupler span and operated with a key, this lock fits directly over tab-style trailer couplers to physically block the latch from opening. Choose the original alloy steel RC6 for proven, everyday protection, or step up to the RC6-SS in stainless steel for extra corrosion resistance in wet, coastal, or marine towing environments.

Specifications

• Brand: C.T. Johnson
• Coupler Span: 7/8 inch
• Lock Type: Key Lock
• Style: Modern, tab style trailer couplers
• Dimensions: approximately 7 x 1.9 x 1.8 inches
• Weight: approximately 0.5 pounds
• Country of Origin: United States

Sizes & Options

Both options in this line share the same 7/8 inch coupler span and key lock operation, so the choice comes down to material. Pick the standard alloy steel RC6 for reliable day-to-day security at a lower price point, or choose the RC6-SS stainless steel version if your trailer is regularly exposed to saltwater, humidity, or harsh outdoor storage, where extra rust and corrosion resistance pays off over time.