Class III and IV Locks

49 different Class III and IV Locks in stock & ready to ship today

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Chrome Plated - Locking Hitch Pin Set

DuraSafe (Part #: RL565)

FitsClass I/II 1-1/4 inch receivers and III/IV 2 inch receivers
List Price: $11.95
Now Only: $11.95

Locking Hitch Pin for 2 or 2-1/2 inch Receivers

Tow Ready (Part #: 63223)

List Price: $14.58
Now Only: $12.39

Suregrip™ L-Handle Hitch Pin Lock - Chrome

Brinks (Part #: 3015-049)

FitsClass I,II,III,IV
List Price: $16.95
Now Only: $15.26

5/8" Locking Hitch Pin With Tubular Style Keys

Trimax (Part #: TR-200)

FitsClass III/IV 2 inch receivers and Class V 2-1/2" receivers*
List Price: $18.95
Now Only: $16.11

Deadbolt Barbell Hitch Pin Lock

Deadbolt (Part #: RH-3)

Made In:USA
List Price: $17.95
Now Only: $16.16

Swivel Head Hitch Pin Lock - 1/2 and 5/8 inch

Master Lock (Part #: 2866DAT)

FitsClass I/II 1-1/4 receivers and Class III/IV 2 inch receivers
List Price: $17.95
Now Only: $16.16

Locking Hitch Pin for 2 or 2-1/2 inch Receivers

Tow Ready (Part #: 63253)

Fits2 inch and 2-1/2 inch receivers
List Price: $19.80
Now Only: $16.83

5/8" Chrome Locking Hitch Pin

Bulldog (Part #: 580401)

FitsClass III/IV
List Price: $20.03
Now Only: $17.03

Locking Hitch Pin for 2 or 2-1/2 inch Receivers

Tow Ready (Part #: 63252)

Fits2 inch and 2-1/2 inch receivers
List Price: $20.53
Now Only: $17.45

Trimax Hitch Pin Lock

Trimax (Part #: T-3)

List Price: $20.95
Now Only: $17.81

Swivel Head Barbell Locking Hitch Pin For 2 Inch Receivers

Master Lock (Part #: 1479DAT)

FitsFits 2 inch receivers
List Price: $19.95
Now Only: $17.96

Trimax Extended Length Hitch Pin Lock

Trimax (Part #: T-5)

Fits2 and 2-1/2 inch receivers
List Price: $21.95
Now Only: $18.66

5/8" Diameter Locking Hitch Pin for 2 or 2-1/2 Inch Receivers

Reese (Part #: 70332)

Fits2 or 2-1/2 inch receivers
List Price: $22.95
Now Only: $19.51

Locking Hitch Pin for 2 inch Receivers

Smith (Part #: 32400)

List Price: $21.95
Now Only: $19.76

Deadbolt Hitch Pin Lock for 2 or 2-1/2 inch Receivers

Deadbolt (Part #: RH-5XL)

Made In:USA
List Price: $21.95
Now Only: $20.19

Trailer Hitch Towing Lock For 2 Inch Receivers

Reese (Part #: 70707)

Fits2 inch receivers
List Price: $24.16
Now Only: $20.54

5/8 Inch Hitch Pin Lock For 2" Receivers

Trimax (Part #: TRA3)

Fits2 inch receivers
List Price: $25.95
Now Only: $23.36

Chrome Barbell Hitch Pins & Coupler Latch Combo

Master Lock (Part #: 2848DAT)

Fits1/2" Hitch Pin-1-1/4" receivers 5/8" Hitch Pin- 2" receivers. Coupler Lock fits 9/16 to 2-3/4 inch latch assemblies
List Price: $25.95
Now Only: $23.36

5/8 Inch Hitch Pin Lock For 2" & 2-1/2" Receivers

Trimax (Part #: TRA5)

Fits2 inch and 2-1/2 inch receivers
List Price: $25.95
Now Only: $23.36

Swivel Head Barbell Locking Hitch Pin For 2 Inch Receivers- Stainless Steel

Master Lock (Part #: 1480DAT)

FitsFits 2 inch receivers
List Price: $26.95
Now Only: $24.26

Stainless Steel Hitch Pin Lock

Trimax (Part #: SXT-3)

List Price: $28.95
Now Only: $24.61

Locking Hitch Pin for 2 or 2-1/2" Inch Receivers

Master Lock (Part #: 1469DAT)

FitsFits 2 and 2-1/2" receivers
List Price: $27.95
Now Only: $25.16

Suregrip™ L-Handle Hitch Pin Lock - Stainless Steel

Brinks (Part #: 3020-048)

FitsClass I,II,III,IV
List Price: $27.95
Now Only: $25.16

Master Lock Receiver Lock & Cable

Master Lock (Part #: 1470DAT)

View Product Video CLICK HERE
List Price: $29.95
Now Only: $26.96

5/8" Stainless Steel Locking Hitch Pin

Bulldog (Part #: 580402)

FitsClass III/IV
List Price: $32.95
Now Only: $28.01

Bolt Codeable 5/8" Receiver Lock - GM Center Cut Key

Bolt (Part #: 7023582)

FitsGM - Center Cut Key
View Product Video CLICK HERE
Made In:USA
List Price: $33.95
Now Only: $30.56

Bolt Codeable 5/8" Receiver Lock - Early Model GM Vehicles (GM-A)

Bolt (Part #: 7018445)

FitsEarly Model GM Vehicles
View Product Video CLICK HERE
Made In:USA
List Price: $33.95
Now Only: $30.56

Bolt Codeable 5/8" Receiver Lock - Chrysler

Bolt (Part #: 7018448)

FitsChrysler Vehicles
View Product Video CLICK HERE
Made In:USA
List Price: $33.95
Now Only: $30.56

Bolt Codeable 5/8" Receiver Lock - Late Model GM Vehicles (GM-B)

Bolt (Part #: 7018446)

FitsLate Model GM Vehicles
View Product Video CLICK HERE
Made In:USA
List Price: $33.95
Now Only: $30.56

5/8" Hitch Pin & Coupler Lock Set

Deadbolt (Part #: RHC-32)

FitsHitch pin - class III/IV 2 inch receivers
Trailer couplers with a 1/2 inch span
Made In:USA
List Price: $33.95
Now Only: $30.56

Bolt Codeable 5/8" Receiver Lock - Ford

Bolt (Part #: 7018447)

FitsFord Vehicles
View Product Video CLICK HERE
Made In:USA
List Price: $33.95
Now Only: $30.56

5/8" Hitch Pin & Coupler Lock Set

Deadbolt (Part #: RHC-33)

FitsHitch pin - class III/IV 2 inch receivers
Trailer couplers with a 2 inch span
Made In:USA
List Price: $34.95
Now Only: $31.46

5/8" Hitch Pin & Coupler Lock Set

Deadbolt (Part #: RHC-34)

FitsHitch pin - class III/IV 2 inch receivers
Trailer couplers with a 2-3/8 inch span
Made In:USA
List Price: $34.95
Now Only: $31.46

Deadbolt Barbell Hitch Pin Lock - Keyed-Alike 2-Pack

Deadbolt (Part #: RH-3-KA2)

Made In:USA
List Price: $35.90
Now Only: $32.32

Stainless Steel Barbell Hitch Pin & Coupler Latch Combo

Master Lock (Part #: 1481DAT)

Fits5/8" Hitch Pin- 2" receivers. Coupler Lock fits 9/16 to 2-3/4 inch latch assemblies
List Price: $35.95
Now Only: $32.36

5/8" Stainless Steel Locking Hitch Pin

Bulldog (Part #: 580412)

FitsClass III/IV/V
List Price: $38.29
Now Only: $32.55

Bulldog Chrome Hitch Pin & Coupler Lock Combo

Bulldog (Part #: 580404)

Fits2 Inch receivers
List Price: $39.68
Now Only: $33.73

5/8" Hitch Pin & Coupler Lock Set

Trimax (Part #: TM-31)

FitsHitch pin - Class III/IV 2 inch receivers
Trailer couplers with a 7/8 inch span
List Price: $37.95
Now Only: $34.16

E-Series Dual Lock Pack - Keyed Alike

Fastway (Part #: 86-00-3660)

FitsFastway E-Series Aluminum Ball Mounts
View Product Video CLICK HERE
List Price: $43.95
Now Only: $37.36

J-Pin Anti-Rattle Lockset for 2 inch Receivers

Tow Ready (Part #: 63201)

View Product Video CLICK HERE
List Price: $45.35
Now Only: $38.55

Deadbolt Hitch Pin Lock for 2 or 2-1/2 inch Receivers - Keyed-Alike 2-Pack

Deadbolt (Part #: RH-5XL-KA2)

Made In:USA
List Price: $43.90
Now Only: $40.38

Hitch and Height Adjustment Pins for Trimax Razor Ball Mounts

Trimax (Part #: TRZ52)

Fits2 inch receivers
List Price: $49.95
Now Only: $42.46

E series HD Dual Lock Pack

Fastway (Part #: 86-00-3685)

Fits2" & 2-1/2" receivers
Made In:USA
List Price: $51.95
Now Only: $44.16

Deadbolt Barbell Hitch Pin Lock - Keyed-Alike 3-Pack

Deadbolt (Part #: RH-3-KA3)

Made In:USA
List Price: $53.85
Now Only: $48.48

OneMount Keyed-Alike Pins

OneMount (Part #: AE-20005)

List Price: $55.95
Now Only: $50.40

Keyed Alike Lock Set

Master Lock (Part #: 3794DAT)

List Price: $65.95
Now Only: $59.36

Deadbolt Hitch Pin Lock for 2 or 2-1/2 inch Receivers - Keyed-Alike 3-Pack

Deadbolt (Part #: RH-5XL-KA3)

Made In:USA
List Price: $65.85
Now Only: $60.57

Coupler Locks & Receiver Lock Combo

Trimax (Part #: TCP50)

FitsClass I/II 1-1/4 inch receivers and Class III/IV 2 inch receivers
List Price: $79.95
Now Only: $67.96

Coupler Locks & Receiver Lock Combo - Premium Package

Trimax (Part #: TCP100)

FitsClass I/II 1-1/4 inch receivers and Class III/IV 2 inch receivers
List Price: $103.95
Now Only: $88.36