RV Couplers & Locks
Small hardware keeps everything connected — and keeps thieves from walking off with your trailer. Hitch pins and clips hold a ball mount or accessory in the receiver, coupler and king-pin locks secure the trailer when it's parked, and anti-rattle pins take the play out of a loose receiver. What's here runs from simple Curt and Draw-Tite pins to Trimax locking anti-rattle pins, Ultra-Fab king-pin locks, and stainless Whitecap shackles and quick links.
131 products
Trimax Heavy-Duty 5th-Wheel King Pin Lock | Red
$80.64
Trimax UMAX100 Universal Coupler & Wheel Lock | Dual Ratchet, 9/16" Steel Shackle
$75.99
InfiniteRule Security Trailer Latch Lock | Fits Demco EZ Latch 2-5/16in Stamped Coupler
$68.95
InfiniteRule Security Trailer Latch Lock | Fits Dexter A-60 Coupler, 2in Ball
$68.95
Trimax UMAX50D Universal Trailer Coupler Lock | Dual-Purpose U-Lock, 9/16" Shackle
$67.99
InfiniteRule Security Trailer Coupler Lock | Fits DEMCO EZ Latch 2-5/16 In. Cast Ball & Gooseneck Couplers
$67.95
Fastway Fortress Max Security Universal Coupler Lock | Fits 1-7/8", 2", 2-5/16" Couplers
$65.99
InfiniteRule Trailer Latch Lock for Bulldog-Style Coupler, Stainless Steel
$64.95
InfiniteRule Trailer Latch Lock for Demco EZ Latch 2" Ball (Stamped Coupler)
$64.95
InfiniteRule Trailer Latch Lock for Dexter Drop-N-Go 2" Ball Coupler
$61.95
Swagman Locking Threaded Hitch Pin with 6.5 ft Security Cable (1-1/4 in)
$59.99
Swagman Locking Threaded Hitch Pin with Security Cable (2 in)
$59.99
Weigh Safe WS06 Keyed-Alike Dual Pin Lock & Receiver Pin Combo | Fits 2", 2.5" & 3" Receivers
$59.99
InfiniteRule Security 61106-S Trailer Latch Lock | Hook, Thumb, Trigger & Yoke Couplers, 3/4" Depth
$59.95
InfiniteRule Security Trailer Latch Lock for 2-1/8" Coupler Latches
$59.95
InfiniteRule Security Trailer Latch Lock for Straight-Tongue Posi-Lock Couplers
$59.95
Diversi-Tech DT-30010 Trailer Coupler Latch Lock
$58.99
InfiniteRule XL Deep Trailer Latch Lock for 3-1/8" Coupler Latch, Stainless Steel
$58.45
Trimax Stainless Steel Receiver & Coupler Lock Set
$56.43
Blaylock American Metal TL-33 Coupler Lock | Fits 2" to 2-5/16" Couplers
$54.99
Trimax Stainless Steel Receiver & Coupler Lock Set | Keyed Alike
$52.76
Blaylock TL-51 Gooseneck Adjustable Sleeve Lock | Solid Steel, Silver
$51.99
Trimax 5th Wheel King Pin Lock | Aluminum Alloy, Weatherproof Yellow Powder Coat
$51.66
BulletProof Hitches 5/8" Locking Pin | Stainless Steel, Fits 2", 2.5" & 3" Receivers
$49.99
Trimax Razor Receiver & Coupler Lock Set | Keyed Alike, Adjustable
$49.83
Blaylock TL-20 Coupler Lock | Fits 1-7/8"-2-5/16" Couplers, Hardened Steel
$48.99
McGard Cone Seat Wheel Locks | M12 x 1.25, Chrome, Set of 4 + Key
$45.99
InfiniteRule Security Receiver Lock | 5/8" x 3-7/8" Pin, 21K Rated, 2024+ Toyota Tacoma & Land Cruiser
$43.95
BOLT Receiver Hitch Lock | 5/8" Pin, Side-Cut Ford/Lincoln/Land Rover Keys
$42.99
Hitch Lock for B&W Tow & Stow | Fits 2" 10K & 2.5" 18K Adjustable Ball Mounts
$42.45
InfiniteRule 61073 Receiver Lock | 3" Receiver, 21,000 lb Rated Pin
$41.95
InfiniteRule Security 2.5" Receiver Hitch Lock | Stainless Steel, Made in USA
$40.95
Bolt Receiver Hitch Lock | 5/8 in Pin, GM Ignition-Key Match, Class III-V
$39.99
Bolt Receiver Hitch Lock | 5/8" Pin, Chrysler/Dodge/Jeep/Ram Ignition Key, Class III-V Receivers
$39.99
Bolt Receiver Hitch Lock | 5/8" Pin, Ford/Lincoln/Mercury Ignition Key, Class III-V Receivers
$39.99
Bolt Receiver Hitch Lock | 5/8" Pin, GM Ignition Key, Class III-V Receivers
$39.99
McGard Tuner-Style Wheel Locks | Chrome, M12 x 1.5, Set of 4 + Key
$39.99
Swagman Locking Anti-Wobble Threaded Hitch Pin (5/8 in, 2 in Receiver)
$39.99
WESCO Trailer Coupler Lock | Dead Bolt Latch, Key Lock
$39.99
Trimax 70mm Round Stainless Steel Disc Padlocks, 3-Pack | 10mm Shackle, Keyed Alike
$39.06
Pinning and locking a trailer connection
Two jobs live here: holding the connection together while you tow, and locking it against theft when you park. A hitch pin does the first; a coupler or king-pin lock does the second. Anti-rattle hardware sits in between, tightening a sloppy fit so the receiver doesn't clunk down the road.
- Hitch pins and clips. These hold a ball mount or accessory in the receiver. Match the pin diameter to the receiver — 5/8" for a 2" receiver, 1/2" for a 1-1/4", often with an adapter sleeve. A swivel-latch pin is easier to seat and pull than a plain pin and clip.
- Anti-rattle pins. A locking anti-rattle pin like the Trimax pulls the play out of the ball mount so it doesn't rattle, and locks it in at the same time. It's the fix for that clunk you feel on bumps.
- Coupler and king-pin locks. A parked trailer with an exposed coupler or kingpin is easy to steal. A king-pin locking cup like the Ultra-Fab tripod covers the fifth-wheel kingpin, and coupler locks block the latch on a bumper-pull. Use them any time the trailer sits unhitched.
- Shackles and quick links. Stainless shackles and quick links, like the Whitecap pieces here, connect safety chains and cables. Match the size to the chain and check the working load, and stainless holds up outdoors without rusting.
Pins secure the ball mounts and drop shanks over on ball mounts and hitch balls, and a king-pin lock protects the hitch you set up on the 5th-wheel hitches page. Everything towing-related is under hitches and couplers.