Whether pulling a trailer load of 4-wheelers, 4-hoofers, or driving a full-on semi tractor/trailer rig, the Spence Trailer Lock offers peace of mind by deterring theft.  Additionally, the Spence Trailer Lock provides added safety and security for trailers parked on an incline or  needing repair.

Patent #7284641B1

The STL-1SA is specifically designed to fulfill your request for a Single Adjustment trailer lock. The lock is vertically adjustable, has only 4 pieces, weighs less than 18 pounds, and has one adjustment on the vertical plane.  

The STL-1SA lock  kit includes all needed hardware for assembly; however, the padlock is not included.  We recommend using Master Lock #37D, M187XKAD, or 605 DAT.  The STL-1SA has 8 inches of vertical adjustment and a 10-inch tire contact surface area.  

Price:  $224.98  MSRP
(Contact us for Stocking Dealer Pricing)

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The STL-2C

The STL-2C is designed to meet  heavy-duty commercial requirements.  The lock assembly has 7 inches of total vertical adjustment and a 13-inch tire contact area.  Each wedge assembly is 24 inches long, 13.5 inches wide, 4 inches high, and weighs less than 30 pounds.  The STL-2C also comes with all hardware needed for assembly, but the padlock is not included.  Again, we recommend using Master Lock #37D, M187XKAD, or 605 DAT. 

(Click the graphic at right to view an animated 3D rendering!) 

Price:  $279.98 MSPR
(Contact us for Stocking Dealer Pricing)

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