Coupler Locks, Repair Kits & Accessories at Trailer Parts Superstore
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Coupler Locks, Repair Kits & Accessories

Coupler Locks, Repair Kits & Accessories

Trailer coupler locks can be used while towing to prevent trailer tongue coupler latch from accidentally opening and also to reduce the possibility of trailer theft. Your best investment for trailer security, the trailer coupler locks have a unique design, which protects better than conventional padlocks. FULTON & DEAD-BOLT locks are perfect for: Boat, Utility, Cargo, RV, Horse and most other recreational trailers.

Trailer Parts Tech Tip: Couplers/Hitch Balls

Click on the item titles below for complete product details

Quantity Description Price

Hitch Ball Cover for 1-7/8" & 2" Trailer Balls

Hitch Ball Cover for 1-7/8" & 2" Trailer Balls

Stock# 1492026
Black PVC plastic cover keeps hitch ball clean and protected when not in use. Fits 1-7/8" and 2" hitch balls.

$1.89

BLOCKHEAD™ Lip Engaged Coupler Lock (4-1/2" Width)#TCL3-AS

BLOCKHEAD™ Lip Engaged Coupler Lock (4-1/2" Width)#TCL3-AS

Stock# 1353016
BLOCKHEAD lip engaging coupler lock fits all 2" and 2-5/16" couplers with a lip around the coupler and a trigger style latch.

$26.99

BLOCKHEAD™ Lip Engaged Coupler Lock (3-3/4" Width)#TCL1-AS

BLOCKHEAD™ Lip Engaged Coupler Lock (3-3/4" Width)#TCL1-AS

Stock# 1353015
BLOCKHEAD lip engaging coupler lock fits all 1-7/8" and 2" couplers with a lip around the coupler and a trigger style latch.

$25.99

Hitch Ball Cover 2-5/16" #42251

Hitch Ball Cover 2-5/16" #42251

Stock# 5223289
Black PVC plastic cover keeps hitch ball clean and protected when not in use. Fits 2-5/16" hitch balls.

$3.99

Coupler Safety Pin #66050

Coupler Safety Pin #66050

Stock# 1326005
Tempered spring wire and 1/4" carbon steel pin. Usable length of 1-3/4".  Quick-connect and disconnect safety pin fits through coupler release handle to prevent coupler latch from accidentally opening.

$2.99

1/4" Zinc Plated Safety Pin w/Lanyard #3006875

1/4" Zinc Plated Safety Pin w/Lanyard #3006875

Stock# 1326311
Zinc plated spring wire and 1/4" x 3 " zinc plated safety pin with a 7" lanyard. Commonly used with forged swivel-type pintle hooks.

$2.79

1/4" Zinc Plated Safety Pin with 5" Lanyard #3004987

1/4" Zinc Plated Safety Pin with 5" Lanyard #3004987

Stock# 1326511
Zinc plated spring wire and 1/4" x 3 " zinc plated safety pin with a 5" lanyard. Commonly used with forged swivel-type pintle hooks.

$1.99

1/4" Zinc Plated Safety Clip w/8" Chain, #P11C

1/4" Zinc Plated Safety Clip w/8" Chain, #P11C

Stock# 1326378
1/4" Zinc plated spring wire clip and 8" chain lanyard. Commonly used with pintle hook/ball combo hitches.

$3.99

Trailer Coupler Lift Handle #50017115

Trailer Coupler Lift Handle #50017115

Stock# 1492076
Handle makes lifting trailer tongue comfortable and clean. Mounts easily to most trailer couplers.

$7.44

TOW READY Trailer Coupler Lock #63225

TOW READY Trailer Coupler Lock #63225

Stock# 5020032
The TOW READY 'HITCHLOCK' fits all standard couplers (up to 3/4" span). The unique design protects better than conventional padlocks. Includes two keys.

$8.99

DEADBOLT Coupler & Hitch Lock Set  #RHC33

DEADBOLT Coupler & Hitch Lock Set #RHC33

Stock# 1353007
Fits lever style A-frame coupler requiring a 1/4" pin with a 2" span and 2"x2" receiver hitch. Includes (2) keyed alike keys.

$26.99

DEADBOLT Coupler Lock (1/2" Span)  #RC2

DEADBOLT Coupler Lock (1/2" Span) #RC2

Stock# 1353005
Fits lever style coupler requiring a 1/4" pin with a 1/2" span. Chrome-plated finish. Includes covered key opening and (2) keys.

$15.50

DEADBOLT Coupler / Actuator Lock (7/8" Span)  #RC6

DEADBOLT Coupler / Actuator Lock (7/8" Span) #RC6

Stock# 1353011
Fits lever style coupler requiring a 1/4" pin with a 7/8" span. Chrome-plated finish. Includes covered key opening and (2) keys.

$15.99

DEADBOLT A-Frame Coupler Lock (2" Span)  #RC3

DEADBOLT A-Frame Coupler Lock (2" Span) #RC3

Stock# 1353006
Fits lever style A-frame coupler requiring a 1/4" pin with a 2" span. Chrome-plated finish. Includes covered key opening and (2) keys.

$15.50

DEADBOLT Brake Actuator Lock (2-1/2" Span)  #RC4

DEADBOLT Brake Actuator Lock (2-1/2" Span) #RC4

Stock# 1353008
Fits lever style Surge Brake coupler requiring a 1/4" pin with a 2-1/2" span. Chrome-plated finish. Includes covered key opening and (2) keys.

$15.99

DEADBOLT Brake Actuator Lock (3-3/8" Span)  #RC5

DEADBOLT Brake Actuator Lock (3-3/8" Span) #RC5

Stock# 1353012
Fits lever style Surge Brake coupler requiring a 1/4" pin with a 3-3/8" span. Chrome-plated finish. Includes covered key opening and (2) keys.

$16.99

FULTON  Universal Fit Trailer Coupler Lock #63226

FULTON Universal Fit Trailer Coupler Lock #63226

Stock# 5020029
Maximum protection against towaway theft for unattended trailers.
Fits Most 1-7/8", 2" and 2-5/16" couplers including A-Frame models.

$19.99

FULTON Gorilla Guard Storage Coupler Lock (2") #63228

FULTON Gorilla Guard Storage Coupler Lock (2") #63228

Stock# 5020047
Maximum protection for unattended trailer, fits Fulton 2" couplers and most other brands. Revolutionary design shields lock from tampering devices. Durable zinc die-cast construction features easy, single key locking action.

$26.99

FULTON Gorilla Guard Storage Coupler Lock (2-5/16") #63227

FULTON Gorilla Guard Storage Coupler Lock (2-5/16") #63227

Stock# 5020048
Maximum protection for unattended trailer, fits Fulton 2-5/16" couplers and most other brands. Revolutionary design shields lock from tampering devices. Durable zinc die-cast construction features easy, single key locking action.

$27.99

BLAYLOCK Universal Fit Trailer Coupler Lock, #TL-33

BLAYLOCK Universal Fit Trailer Coupler Lock, #TL-33

Stock# 1616002
The model TL-33 Universal Coupler Lock is precision made of heavy grade aircraft aluminum and will not rust. It features a 3/4" steel locking pin, for use with a large heavy duty padlock. (Padlock not included)
Universal coupler has 3 different locking positions and fits more than 30 couplers.

$29.99

BLAYLOCK Bulldog Style Trailer Coupler Lock, #TL-20

BLAYLOCK Bulldog Style Trailer Coupler Lock, #TL-20

Stock# 1616003
The TL-20 is a heavy-duty bulldog style trailer coupler lock is made from heavy-duty aircraft aluminum and includes a 3/4" steel pin. (Padlock not included)
Fits all Hammerblow Bulldog style 1-7/8", 2" and 2-5/16" couplers and similar styles.

$19.95

BLAYLOCK Gooseneck Trailer Coupler Lock, #TL-51

BLAYLOCK Gooseneck Trailer Coupler Lock, #TL-51

Stock# 1616013
The model TL-51 is precision-made of aircraft aluminum and will not rust and will secure the adjustable top of coupler. Also used jointly with model TL-50. It includes a 3/4 inch heavy-duty steel locking pin.
Fits Hammerblow, Stallion, Superior and T.E.M Gooseneck style couplers.

$22.95

BLAYLOCK Gooseneck Trailer Coupler Lock, #TL-50

BLAYLOCK Gooseneck Trailer Coupler Lock, #TL-50

Stock# 1616001
The model TL-50 is precision-made of aircraft aluminum and will not rust. It features a 3/4 inch heavy-duty steel locking pin. (Padlock not included)
Fits Hammerblow, Stallion, Superior and T.E.M Gooseneck style couplers.

$38.95

BLAYLOCK Gooseneck Trailer Combination Lock Set, #TL-52

BLAYLOCK Gooseneck Trailer Combination Lock Set, #TL-52

Stock# 1616011
The model TL-52 Combo Gooseneck coupler lock consists of one Blaylock #TL-51 and one Blaylock #TL-50. This set is precision-made of aircraft aluminum and will not rust. It includes a 3/4 inch heavy-duty steel locking pin for each lock.   Fits Hammerblow, Stallion, Superior and T.E.M Gooseneck style couplers

$59.77

BLAYLOCK Gooseneck Trailer Coupler Lock, (RAM) #TL-55

BLAYLOCK Gooseneck Trailer Coupler Lock, (RAM) #TL-55

Stock# 1616018
The model TL-55 is precision-made of aircraft aluminum and will not rust. It features a 3/4 inch heavy-duty steel locking pin. (Padlock not included)
Fits RAM Gooseneck style couplers rated at 20k lb.,  24k lb., 25k lb., and 30k lb.

$38.99

BLAYLOCK Gooseneck Trailer Coupler Lock Combo, (RAM) #TL-56

BLAYLOCK Gooseneck Trailer Coupler Lock Combo, (RAM) #TL-56

Stock# 1616019
The model TL-55 is precision-made of aircraft aluminum and will not rust. It features a 3/4 inch heavy-duty steel locking pin. Also includes a lock (TL-51) for the adjustable top part of coupler. (Padlock not included)
Fits RAM Gooseneck style couplers rated at 20k lb.,  24k lb., 25k lb., and 30k lb.

$59.97

BLAYLOCK Gooseneck Trailer Coupler Lock Combo, (RAM) #TL-57

BLAYLOCK Gooseneck Trailer Coupler Lock Combo, (RAM) #TL-57

Stock# 1616020
The model TL-55 is precision-made of aircraft aluminum and will not rust. It features a 3/4 inch heavy-duty steel locking pin. Also includes a lock (TL-51) for the adjustable top part of coupler. (Two Padlock's included)
Fits RAM Gooseneck style couplers rated at 20k lb.,  24k lb., 25k lb., and 30k lb.

$82.95

BLAYLOCK Bulldog Style 2" Coupler Encasement Lock, #TL-22

BLAYLOCK Bulldog Style 2" Coupler Encasement Lock, #TL-22

Stock# 1616009
The model TL-22 total encasement lock protects your unattended trailer with a strong 5/8" steel pin that extends to top of hitch ball hole. Heavy duty aircraft aluminum will not rust and push button lock recessed into heavy aluminum housing is tamper proof. Two keys are included.   Fits 2" Bulldog style trailer couplers

$36.99

BLAYLOCK Lip-Engaging Trailer Coupler Lock, #TL-38

BLAYLOCK Lip-Engaging Trailer Coupler Lock, #TL-38

Stock# 1616008
The model TL-38 simply slips over the coupler and the push button lock engages the 5/8" steel pin. This secures the lock bracket onto coupler. Use the keys provided to unlock and remove coupler lock.
Fits all 1 7/8" and 2" lip-engaging trailer couplers.

$34.50

BLAYLOCK Pintle Ring/Lunette Trailer Coupler Lock, #TL-60

BLAYLOCK Pintle Ring/Lunette Trailer Coupler Lock, #TL-60

Stock# 1616005
The Model TL-60 coupler lock for pintle drawbar eye is a deterrent against theft of trailers equipped with the drawbar for pintle couplers. Strong aluminum construction. Features heavy-duty 3/4" steel pin.
Fits drawbar eyes sizes 2-1/2" and 3" inside diameter

$25.50

DUTTON-LAINSON 2" Coupler Repair Kit #6257

DUTTON-LAINSON 2" Coupler Repair Kit #6257

Stock# 1568016
Repair kit for Dutton-Lainson 2" ball Class 2 & 3 couplers. Includes the entire ball clamp assembly, for quick change out.

$18.95

BULLDOG 'High Profile' A-Frame Coupler Repair Kit #024200

BULLDOG 'High Profile' A-Frame Coupler Repair Kit #024200

Stock# 5207044
BULLDOG A-Frame coupler repair kit for the weld-on 'HIGH PROFILE' series couplers. Kit includes high profile latch handle, latch wire, latch pin, push nut and cotter pin.

$11.99

'Bump Me' Coupler Cushion / Bumper Guard #13352

'Bump Me' Coupler Cushion / Bumper Guard #13352

Stock# 1568014
Molded cushion absorbs blow between coupler and towing vehicle when hook-up is misjudged. Slips onto the coupler flange and fits most brands of Class 1-4 couplers. No more scratched bumpers or tags.

$10.77