These BOLT trailer locks use the mechanical key from a compatible vehicle, so the correct key profile matters just as much as the size of the coupler latch. All four models below are adjustable coupler pin locks, not full-coupler ball-and-clamp locks. Compare the exact key type and the latch opening before ordering.

Three checks for the correct BOLT lock

1. Identify your vehicle keyFord standard and Ford side-cut keys require different part numbers. GM centre-cut and Dodge/Jeep/Ram are separate key families too. Verify the mechanical key blade using BOLT's current vehicle application chart.
2. Measure the latch spanBOLT specifies an adjustable span from ½ to 3⅜ inches with ⅛-inch increments. This is the coupler's latch-pin span, not its 1⅞-, 2- or 2 5/16-inch trailer ball size.
3. Check the locking pinThe lock uses a stainless-steel pin, approximately 0.27 inch in diameter. Compare the coupler latch hole, surrounding clearance and original pin rather than assuming all latches accept this diameter.
First-key setup matters: BOLT's lock cylinder permanently learns the first compatible key used when operated according to its instructions. It cannot be reset for a different vehicle key later. Confirm the correct key blade before initial use.

BOLT coupler pin lock MPN chart

The shared latch-pin adjustment does not make the vehicle-key versions interchangeable. Choose the specific part number for the keyway you actually have, including the separate Ford standard and Ford side-cut styles.

MPN Key family Typical application Lock type Product
7025285 Ford standard/key groove Selected Ford and Lincoln conventional-key applications Adjustable coupler latch pin View
7025286 Dodge / Jeep / Ram family Selected Chrysler, Dodge, Jeep and Ram key applications Adjustable coupler latch pin View
7025287 GM centre-cut Selected Chevrolet, GMC, Buick and Cadillac centre-cut key applications Adjustable coupler latch pin View
7025290 Ford side-cut Selected Ford and Lincoln side-cut key applications Adjustable coupler latch pin View

Compare exact coupler pin lock products

Each card links to the corresponding NewRVParts listing. The pictured locks are grouped by vehicle-key application; use the exact manufacturer number to select the intended version.

Common coupler pin lock questions

Does BOLT 7025285 fit the same key as 7025290?

No. 7025285 is BOLT's standard Ford key profile and 7025290 is its Ford side-cut profile. Compare the actual vehicle key and published keyway illustration before selecting a lock.

Can I use the lock with a push-button-start vehicle?

BOLT supports compatible mechanical emergency-key blades as well as conventional ignition keys. The correct blade and keyway still need to match the specific part number.

Can a BOLT lock be rekeyed after changing trucks?

No. BOLT states that the cylinder permanently learns the first key used. Select a new lock with the correct key profile after changing to an incompatible vehicle key.

Is this a full trailer coupler theft lock?

No. A coupler pin lock secures a suitable coupler latch. Full-coupler locks cover or clamp around an unhitched coupler and are a separate product type.

Does a 3⅜-inch maximum span mean it fits every trailer latch?

No. The coupler latch hole diameter, usable space, latch position and lock-body clearance also matter. Check the original hardware and installation before ordering.

Check the lock manufacturer's current key application information for your vehicle. A lock is one part of secure trailer parking and hitch maintenance.

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