Spin-Loc for DEF, GM/CHEVY Diesel

Made for GM/CHEVY Diesel trucks with the DEF filler under the fuel door.
 
The Spin-Loc is the locking/tamper-resistant DEF cap for GM/CHEVY diesels. Locking up your DEF prevents unwanted matter from being put into your DEF tank.  The Spin-Loc also has a natural venting.
 
The Spin-Loc, like the Loc-Sure series for GM/CHEVY diesel trucks, works on the parent company's Secure Screw system which has been tested and approved by military and other secure facilities as a low-level human secure system. Bottom line: The Spin-Loc is locked until you open it with the key.
 
Each Spin-Loc purchase comes with the Spin-Loc and a pair of Secure Keys with complimentary stainless steel key ring. Additional keys can be purchased using the information from our Secure Keys page. 

This locking DEF cap is not designed to work with the OEM or any other tether.  Operation of the Spin-Loc is explained in literature enclosed with the purchase.
 
BEM Auto's Spin-Loc main component is fully machined from US-made black acetal copolymer bars at the BEM Auto factory. All Spin-Locs are surface etched to identify the assembled unit in case over-the-phone assistance is required.