Trailer Coupling Lock - With Padlock Size:Small - Get 10 spark plugs

- Get 10 spark plugs in one box for top performance

Heavy grey thermoplastic mounting board

ie: 1" Shaft (gearbox) x 1 " shaft (prop shaft)

Stud Mounted

- Ignition protected

Trailer Coupling Lock - With Padlock Size:Small - Get 10 spark plugsSolid flat bar steel manufactured coupling locks supplied with electrochemical deposition coating (EDC) for greater corrosion resistance. The large model locks around the trailer coupling and towing vehicle tow ball, preventing disconnection but still allowing full trailer articulation, this is achieved with the clamp bar in the top position as pictured. The large clamp (with lock bar in lower position) and the small clamp, lock around the trailer