CURT 23082
Ball-style coupler lock
Orange polymer housing with ball-style coupler engagement; confirm the coupler's exterior shape.
CURT Trailer Coupler Locks: Ball, Latch Pin & Keyed Sets
A trailer coupler lock can protect an unhitched trailer, secure a latch while towing or pair a coupler pin with a receiver lock. These are different applications. CURT offers full-coupler ball-style locks, compact latch pins and keyed-alike kits. Before choosing a product, identify the kind of lock your coupler accepts and measure the space available for its pin or clamping body.
Three types of coupler security
Unhitched coupler protectionA full coupler lock covers or occupies the trailer ball pocket and clamps around the coupler. Its shape must match the specific coupler body.
Coupler latch lockA smaller keyed pin passes through the latch lever to help prevent unwanted release. Match the hole size, usable span and latch clearance.
Receiver and latch togetherA paired lock kit can protect both hitch receiver and coupler latch. Check each lock's pin diameter and use the keys assigned to that set.
Fit is more than ball size: 23082 and 23090 are listed for common 1⅞-, 2- and 2⁵⁄₁₆-inch trailer ball couplers, but the outside shape and available clamping room still matter. Latch pins must be chosen by their physical dimensions, not by ball size.
CURT trailer coupler lock MPN chart
Use the exact manufacturer part number and application to identify the lock. Where the catalog does not provide a usable latch span, measure your existing coupler and inspect the linked product specifications before ordering.
| MPN | Lock design | Used on | Fit or pin size | Product |
|---|---|---|---|---|
| 23082 | Ball-style coupler lock | Unhitched trailer coupler | 1⅞, 2, 2⁵⁄₁₆-in couplers | View |
| 23090 | Ball-and-clamp lock | Unhitched trailer coupler | 1⅞, 2, 2⁵⁄₁₆-in couplers | View |
| 23503 | Barbell-style latch pin | Coupler latch | ¼-in pin; verify usable span | View |
| 23523 | Barbell-style latch pin | Coupler latch | ¼-in pin; verify usable span | View |
| 23522 | Barbell-style latch pin | Coupler latch | ¼-in pin, 2½-in latch span | View |
| 23022 | Compact padlock-style pin | Coupler latch | ¼-in pin, maximum ¾-in span | View |
| 23521 | Compact padlock-style pin | Coupler latch | ¼-in pin, maximum ¾-in span | View |
| 23505 | Keyed-alike two-lock set | Receiver and coupler latch | ⅝-in receiver pin + ¼-in coupler pin | View |
Compare the matching CURT locks
These product cards link to the individual CURT listings on UsedRVParts. Compare the supplied lock, dimensions, finish and required keys with the exact coupler or hitch you are securing.
Full-coupler ball and clamp locks
CURT 23090
Ball-and-clamp lock
Orange steel ball-and-clamp design; compare the lock body clearance around the coupler.
Pin and latch locks
CURT 23503
Barbell-style latch pin
Silver/blue barbell-style pin; measure the latch opening and locking span before purchase.
CURT 23523
Barbell-style latch pin
Chrome-colour barbell pin; compare the original lock's full dimensions.
CURT 23022
Compact padlock-style pin
Brass-plated compact lock with two keys for narrow latch spans.
Keyed-alike lock sets
CURT 23505
Keyed-alike two-lock set
Two keyed-alike locks for a compatible 2-inch receiver and coupler latch.
Coupler lock selection questions
Is a latch-pin lock the same as a full coupler lock?
No. A latch pin secures the coupler's latch opening. A full coupler lock covers or clamps the coupler body to discourage unauthorized hitching when the trailer is parked. Choose based on the job.
What is the difference between CURT 23022 and 23522?
Both use a ¼-inch pin, but their spans differ significantly. 23022 is a compact ¾-inch maximum-span padlock design, while 23522 offers a 2½-inch barbell-type latch span. Measure the latch before ordering.
Does a lock for a 2-inch trailer ball fit all 2-inch couplers?
Not necessarily. The exterior shape, width, latch hardware and clamping clearance can vary between coupler models. Compare the exact product's geometry and manufacturer fit instructions.
What does keyed alike mean on CURT 23505?
The set contains two locks that use matching keys, one intended for a compatible 2-inch hitch receiver and the other for a suitable coupler latch. Check both applications individually.
Related trailer and towing references
For towing connector hardware, see CURT trailer plug adapter identification. For brake service, browse our Dexter 10-inch electric trailer brake parts reference.
A coupler lock is a deterrent, not a substitute for inspecting the coupler, safety chains and towing connection.
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