The BOLT / Strattec Security 7018446 is a rugged, key‑programmed receiver hitch lock engineered for modern GM vehicles. Designed to work with your vehicle’s factory ignition key, this lock eliminates the need for extra keys while providing strong protection against theft and tampering. Constructed from automotive‑grade materials with advanced security features, it’s built to withstand harsh weather and heavy use.

This 5/8″ diameter receiver lock fits Class III, IV, and V hitch receivers (2″ to 2.5″ square) and permanently codes to your ignition key the first time it’s used — providing dependable convenience and security that lasts. Ideal for pickup trucks, SUVs, and fleet vehicles, the 7018446 helps keep your trailer, hitch accessories, and gear secure without extra keys to carry.

Key Features

• Uses your vehicle’s factory ignition key — no extra keys required

• Heavy‑duty stainless steel construction with corrosion resistance

• 6‑plate tumbler sidebar prevents picking or bumping

• Double ball bearing locking mechanism for enhanced security

• Weather‑resistant design with lock shutter to keep out moisture and dirt

• Automatically locks when the key is removed

• Fits Class III, IV, and V (2″ and 2.5″) hitch receivers

• Limited lifetime warranty 

Why Choose the BOLT 7018446?

Whether you’re towing for work or recreation, the 7018446 delivers peace of mind and convenience. With a simple one‑time programming process, your existing GM key becomes the lock’s key — eliminating additional keys while deterring theft of your hitch accessories or trailer. Built with quality materials and backed by a lifetime warranty, it’s a trusted hitch security solution for late‑model GM vehicles. 

This product is compatible with the following GM Late Models:

Buick: Allure (2005–2009), LaCrosse (2005–2009), Lucerne (2006–2011), Enclave (2008–2017)

Cadillac: CTS (2008–2013), CTS Coupe (2014), DTS (2005–2011), Escalade (2007–2014), Escalade EXT (2007–2013), SRX* (fit may vary)

Chevrolet: Avalanche (2007–2013), Cobalt (2005–2010), Corvette (2005–2013), Equinox (2007–2009), Express Van (2008–2014), HHR (2006–2011), Impala / Impala Limited (2006–2016), Malibu (2005–2013), Malibu Classic (2008), Malibu Maxx (2004–2007), Monte Carlo (2006–2007), Suburban 1500 (2007), Silverado 1500 HD Classic / 2500HD Classic (2007), Traverse (2009)

Pontiac: G5 / G5 Pursuit (2006–2010), G6 (2005–2010), Grand Prix (2006–2008), *Trans Sport Van / Outlook may vary

Hummer: H2 (2008–2009)

Saturn: Ion (2003–2007), Outlook (2007–2010), Relay (2005–2007)