.Post lock Small (Spring Lock) Double pin 3 inch x 3 inch Square Made in USA

Keep your trailer posts secure and operating smoothly with our Post Lock – 3 Inch x 3 Inch Square Double (Small Spring Lock), proudly Made in the USA. Built for durability and precision fitment, this post lock is engineered to handle the daily demands of auto transport professionals.

Designed to fit Cottrell, Miller, Sun Valley, Boydstun, and most other 3″x3″ square post auto hauler trailers, this double spring setup ensures strong holding power, reliable engagement, and long-lasting performance. Whether you’re replacing worn hardware or upgrading for smoother operation, this lock delivers dependable security you can count on.

Features:

• 3″ x 3″ square double small spring lock

• Heavy-duty construction for long service life

• Made in the USA for superior quality

• Fits Cottrell, Miller, Sun Valley, Boydstun, and many other car hauler trailers

• Ideal replacement for worn or damaged post locks

• Ensures safe, secure operation of trailer posts

Built to withstand tough hauling environments, this post lock keeps your equipment operating safely and efficiently on every load.