Gooseneck Trailer & Coupler Locks

Find the right gooseneck trailer lock for your coupler and stem. Shop coupler locks for Shocker Shift Lock® and Demco EZ Latch couplers, stem set-bolt locks and matched lock packages to help deter theft when your trailer is parked and unhooked. Start with your coupler style and ball size: Shift Lock options are available for 2-5/16" and 3" couplers; Demco options fit 2-5/16" EZ Latch couplers. Choose a kit with a lock included or a bracket for a compatible lock you already own. See the buying guide below the products for lock comparisons and fitment tips.

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Choose the right gooseneck trailer lock

A coupler lock and a stem set-bolt lock protect different parts of your hitch. Match the lock to your equipment before you order.

Lock the coupler

A coupler lock helps block an unauthorized hookup while your trailer is unhitched. Choose the design made for your Shift Lock or Demco coupler.

Shift Lock kit with puck lock
Demco kit with puck lock

Secure the stem

A stem set-bolt lock helps secure the inner tube and coupler to the trailer. Check your set-bolt position and available clearance.

Shop the stem set-bolt lock

Protect both points

A package combines an HD box-style coupler lock and a stem set-bolt lock. These packages include keyed-alike locks for convenience.

Shift Lock package
Demco package

Check these three details before ordering

Coupler style: Shocker Shift Lock couplers have a shifter-style lever handle. Demco locks are for Demco EZ Latch couplers. These coupler locks are not interchangeable and are not designed for Bulldog or Wallace Forge couplers.

Ball size: Choose the correct 2-5/16" or 3" option for a Shift Lock coupler. The Demco locks in this category are designed for 2-5/16" EZ Latch couplers. Ball size alone does not establish compatibility.

Stem-lock clearance: On Shocker 9-inch-offset air gooseneck hitches, the stem set-bolt lock fits when the trailer outer-stem set bolts are on the side. It does not fit front-mounted set bolts on that hitch because there is insufficient clearance.

Gooseneck lock questions

Is a padlock or puck lock included?

The coupler kits labeled “with Puck Lock” include the puck lock. The bracket-only products labeled “for Pad, Disk or Puck Lock” require a compatible lock, sold separately. Check the selected product’s included components before ordering.

Can I use my existing lock?

The padlock-style brackets accept compatible pad, disk or puck locks. Check the bracket’s lock requirements and your lock’s dimensions on the product page. A Shocker hidden-shackle puck lock is also available separately.

Do I need a coupler lock and a stem lock?

A coupler lock helps deter an unauthorized hookup; a stem lock helps deter removal of the inner tube and coupler. Using both addresses those two access points. Locks are theft deterrents, not a guarantee against theft.

Need help choosing? Contact Shocker Hitch with your coupler model, ball size and set-bolt location so we can help you check fitment.

Gooseneck Trailer Locks

Choose the right gooseneck trailer lock

Lock the coupler

Secure the stem

Protect both points

Check these three details before ordering

Gooseneck lock questions

Is a padlock or puck lock included?

Can I use my existing lock?

Do I need a coupler lock and a stem lock?

Watch: Shift Lock coupler lock overview

Gooseneck Trailer Locks

Shocker Shift Lock Gooseneck Coupler & Stem Set Bolt Lock Package

Shocker Shift Lock Gooseneck Coupler Lock with Puck Lock

Demco Gooseneck Coupler Lock with Puck Lock

Shocker Gooseneck Stem Set Bolt Lock

Demco Gooseneck Coupler & Stem Set Bolt Lock Package

HD Box Style Lock for Demco Gooseneck Coupler

Shocker Shift Lock Gooseneck Coupler Lock for Pad, Disk or Puck Lock

HD Box Style Gooseneck Coupler Lock for Shocker Gooseneck with Shift Lock Coupler

Demco Gooseneck Coupler Lock for Pad, Disk or Puck Lock

Shocker Red Hidden Shackle Disc Puck Lock with 3 Keys

Demco Remote Release

Choose the right gooseneck trailer lock

Lock the coupler

Secure the stem

Protect both points

Check these three details before ordering

Gooseneck lock questions

Is a padlock or puck lock included?

Can I use my existing lock?

Do I need a coupler lock and a stem lock?

Watch: Shift Lock coupler lock overview