DeadBolt RC-series trailer-coupler locks have different latch openings and different intended coupler styles. An adjustable latch lock is not the same design as a conventional lever lock or a surge-brake coupler lock. This guide helps narrow the exact model without confusing latch opening with towing-ball size.
Which trailer-coupler latch do you have?
RC1 offers multiple locking positions to suit selected latch arrangements; measure rather than assuming universal fit.
RC2 and RC3 correspond to different listed lock openings for lever-style couplers.
RC4 and RC5 address wider latch arrangements commonly associated with surge-brake couplers.
DeadBolt RC1–RC5 model comparison
Start with the coupler mechanism, then compare the listed latch opening against your own measured lock location.
| Model | Coupler-latch design | Listed lock opening or adjustment |
|---|---|---|
| RC1 | Adjustable latch lock | Five locking positions |
| RC2 | Conventional lever coupler | ½-in opening |
| RC3 | Conventional lever coupler | 2-in opening |
| RC4 | Surge-brake coupler | 2½-in opening |
| RC5 | Surge-brake coupler | 3⅜-in opening |
The opening values describe the coupler latch/lock arrangement, not the hitch-ball diameter. RC1 uses adjustable positions; confirm the exact range against the coupler and current manufacturer data.
Check these details before purchasing
Check whether the coupler uses a simple lever latch or a surge-brake actuator. Measure the latch opening and the distance where the locking pin sits, allowing for the lock body and surrounding hardware.
A lock that passes through a trailer coupler latch is not a substitute for the trailer hitch receiver pin or for a lock that blocks the hitch-ball socket. Confirm the correct application before use.
DeadBolt coupler latch locks
Open the corresponding product for images, listing specifications and availability.
DeadBolt RC1
Adjustable latch-style lock with five positions. Match the pin and latch span to your existing coupler.
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DeadBolt RC2
Specified for conventional lever-style couplers with a ½-inch latch opening.
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DeadBolt RC3
Specified for conventional lever-style couplers with a 2-inch latch opening.
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DeadBolt RC4
Lock style intended for specified surge-brake coupler latches with a 2½-inch opening.
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DeadBolt RC5
The wider 3⅜-inch opening version for a suitable surge-brake coupler design.
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