Best Towing Hitch Locks Under $100 (2026)
We ranked options under $100 by value score using build materials, compatibility across common coupler and receiver sizes, user ratings, and practical features like handles or weather resistance
This roundup covers reliable towing hitch locks and receiver security options priced under $100, focused on value, build quality, and fit for common trailer and RV applications. Picks were chosen by comparing materials, locking mechanisms, compatibility (coupler sizes, king pin, and receiver diameters), user ratings, and overall value scores
Top Picks
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1
Master Lock universal trailer coupler locks (1-7/8", 2", 2-5/16") 2-pack
Universal trailer coupler locks for 1-7/8", 2", and 2-5/16" sizes. Two locks are keyed differently for added security. Bright red finish discourages tampering, and customers note easy on/off and strong construction
- universal size compatibility
- two different keys
- strong build with security-focused finish
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2
BOYISEN 5th Wheel King Pin Lock with Handle
Solid steel king-pin lock with an outward-facing handle for easy locking/unlocking on 5th wheel hitches. Customers note quick setup, solid build, and secure design that fits king pins well
- outward-turning handle for convenience
- unique keyed security
- sturdy solid steel build
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3
BOYISEN kingpin lock with handle for 5th wheel
Solid steel kingpin lock for 5th wheel hitches and RVs, designed for easier handling with an outward-facing handle. Customers note quick setup, sturdy build, and secure design against theft
- outward-facing handle for easier use
- solid steel anti-theft design
- unique key system to prevent key overlap
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4
Rhino USA Trailer Hitch Pin, 2.5 Inch Locking Receiver Pin
Solid steel anti-theft hitch pin for 2.5" x 2.5" Class V hitches. Weatherproof and tamper-resistant for secure trailer towing. Customers note solid build and reliable lock, with some finding it slightly short for certain setups
- anti-theft locking mechanism
- weatherproof debris protection
- fits 2.5 inch hitches
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5
BOYISEN 5th Wheel King Pin Lock with Handle
Solid steel king pin lock for RVs, trailers and campers with an outward-turn handle for easier locking. Customers note quick setup and secure construction that fits 5th wheel hitches
- outward-turn handle design
- unique keyed system
- fits 5th wheel hitches
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6
Master Lock universal coupler locks 1-7/8, 2, and 2-5/16 inches (3 pack)
Three universal coupler locks fit most 1-7/8
- universal size compatibility
- three locks with unique keys
- bright red finish for visibility
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7
Keyed Alike 5/8" Trailer Hitch Lock Set (2-pack) with Extra Long 3-1/4" Span
Lock set for Class III/IV hitches with 2" and 2-1/2" receivers. Extra-long 5/8" pin ensures secure fit and easy push-button operation. Customer note: sturdy build and smooth installation/removal
- extra-long pin for secure fit
- compatible with two receiver sizes
- includes safety features (cotter pin, safety clip)
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8
Rhino USA 3 in Hitch Pin Locking Receiver Pin (Class V) – Weatherproof
Hitch pin and locking receiver pin engineered for Class V (3" x 3") hitches with anti-theft and debris-protection. Durable steel construction and tamper-resistant design for secure trailer connections. Customers note sturdy build and smooth operation, with some compatibility concerns noted by users
- anti-theft locking receiver pin
- fits 3 inch Class V hitches
- weatherproof, debris-protected
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9
Bolt 5/8" Receiver Lock for Chevy/GMC/Buick/Cadillac
Stainless steel 5/8" receiver lock opens with your ignition key, eliminating extra keys. Works with center cut Chevy, GMC, Buick & Cadillac keys; fits 2"-2.5" receivers. Durable construction; praised for ease of use
- Ignition-key integration
- Center-cut key compatibility
- Class 3–5 hitch compatibility
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10
Master Lock trailer hitch lock for 1-7/8 in to 2-5/16 in
Vehicle hitch lock fits common trailer couplers with weather resistance and keyed-alike options. Customers note high quality, secure construction, and ease of use, with mixed fit reports for 2-5/16 in couplers
- Multiple coupler compatibility
- Resists rust and corrosion
- Locking mechanism resists picking and prying