Fit Guide
Find the Right Lock for Your Trailer
Select Your Trailer Type
Choose the type of trailer you use most often.
Check Your Coupler Size
Measure the inside width of your trailer coupler.
1-7/8" Coupler
Best for small utility and light cargo trailers. Common on compact and lightweight setups.
2" Coupler
Most common size for standard trailers. Used on utility, boat, and travel trailers.
2-5/16" Coupler
Designed for heavy-duty and high-capacity trailers. Ideal for equipment and RV trailers.
Your Recommended Lock
Based on your coupler size, choose the lock below.
ForgedX Model SS316
ForgedX Shield Pro Max