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    Hitch & Coupler Locks

    Trailer hitch receiver and coupler locks. Secure your trailer ball mount or receiver with our wide selection of locks, locking pins and lock combo kits. Our trailer hitch and coupler locks and made in the USA and are made of the highest quality material and workmanship that will last for years to come. SiraWeb.com offers fast shipping, no hassle returns and a friendly, knowledgeable staff. Shop with confidence, order now! 

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    Bulldog Chrome Trailer Coupler Lock, Cequent 580403

    Bulldog Chrome Trailer Coupler Lock, Cequent 580403

    Strong, break resistant trailer lock that fits around the coupler. Features a dual self-locking design. High security square key, chrome finish.
    $25.99 $19.49
    Bulldog Chrome Trailer Dogbone Lock, 5/8" Diameter, Cequent 580401

    Bulldog Chrome Trailer Dogbone Lock, 5/8" Diameter, Cequent 580401

    Chrome ball mount lock with a 5/8" diameter. Can accommodate any style hitches. Covered key slot prevents corrosion in locking mechanism. Limited Lifetime Warranty. Bulldog 580401
    $21.99 $16.49
    Bulldog Dogbone Receiver Lock & Sleeve, 1/2" & 5/8", Cequent 580407

    Bulldog Dogbone Receiver Lock & Sleeve, 1/2" & 5/8", Cequent 580407

    Universal Easy Access Trailer Receiver Lock & Sleeve. 1/2" pin for 1-1/4" receivers and 5/8" pin with sleeve on for 2" square receivers with Dust Cap by Bulldog. Easy Access Models Feature Side Key Entry, Sliding Dust Cap, Lock Housing Rotates 360 degrees. Cequent 580407.
    $19.99 $12.99
    Bulldog Easy Access Trailer Long Coupler Lock, Cequent 580409

    Bulldog Easy Access Trailer Long Coupler Lock, Cequent 580409

    Universal Easy Access Trailer Coupler Long Lock with Dust Cap by Bulldog. 1/4" pin diameter, 3-5/8" span. Easy Access Models Feature Side Key Entry, Sliding Dust Cap, Lock Housing Rotates 360 degrees. Limited Lifetime Warranty.
    $19.99 $13.99
    Bulldog Locking 5/8" Chrome Trailer Hitch Bent Pin Lock, Cequent 580400

    Bulldog Locking 5/8" Chrome Trailer Hitch Bent Pin Lock, Cequent 580400

    This solid, high-strength steel, bent-pin-style hitch lock lets you secure your ball mount, bike rack, cargo carrier or other accessory to your 2" class III or 2.5" class IV trailer hitch receiver. Chrome finish guards against corrosion. 5/8" diameter, 3.25" span.
    $21.99 $15.99
    Bulldog Stainless Steel Trailer Coupler Lock, Cequent 580408

    Bulldog Stainless Steel Trailer Coupler Lock, Cequent 580408

    Stainless Steel Trailer Coupler Lock by Bulldog. Includes sliding dust cap. Easy Access Models Feature Side Key Entry. Exceptional durability and wear resistance. Lock Housing Rotates 360 degrees. Finish: polished stainless steel. Limited Lifetime Warranty.
    $19.99 $14.99
    Bulldog Stainless Steel Trailer Dogbone Lock & Sleeve, Cequent 580405

    Bulldog Stainless Steel Trailer Dogbone Lock & Sleeve, Cequent 580405

    Universal trailer combo dogbone and coupler lock hitch pin for 1-1/4" and 2" Receivers with a dust cap by Bulldog. 1/2" diameter and a 5/8" diameter with sleeve on, stainless steel finish. Flush-style hitch lock with sleeve secures your ball mount, bike rack, cargo carrier or other accessory to a 2" or 1-1/4" trailer hitch receiver. Rustproof stainless steel construction. Limited Lifetime Warranty.
    $29.99 $23.99
    Chrome 5-1/2" x 1/2" Dia. Watercraft Bow Locking Pin, Trimax T6

    Chrome 5-1/2" x 1/2" Dia. Watercraft Bow Locking Pin, Trimax T6

    Exclusive design incorporates O-Ring and water tight cap to help seal out dirt & corrosion in the lock head mechanism. 5.5 inch length, 1/2 inch diameter pin, chrome finish.
    $32.99 $21.49
    Chrome Dogbone Style Trailer Lock & Coupler Combo Set, Tow Ready 63250

    Chrome Dogbone Style Trailer Lock & Coupler Combo Set, Tow Ready 63250

    Tow Ready Multi-Purpose Dogbone Style Trailer Combo Lock Set> Includes 1/2" pin for 1-1/4" receivers and 5/8" pin for 2" and 2-1/2" receivers. Keyed alike. Includes Stainless Steel Sleeve, Coupler Lock, Dogbone Lock, Dusk Cap and 2 keys. Dependable and long lasting, made of the highest quality, durable materials. Limited 1 Year Manufacturer's Warranty. Cequent 63250.
    $34.99 $24.99
    Chrome Plated 1/2" Trailer Receiver Lock, 2" Span, Trimax TR125

    Chrome Plated 1/2" Trailer Receiver Lock, 2" Span, Trimax TR125

    Made of high quality chrome plated machine hardened steel. Patented design uses O-ring and water tight cap to seal out dirt. Stainless steel internal components. Includes 2 rugged keys. 1/2" diameter receiver lock. Fits 1-1/4" Class II Receiver Hitches. Easy 1/4-turn operation. Patented Design, Lifetime Warranty.
    $21.99 $15.49
    Chrome Trailer Dogbone & Coupler Lock Combo, 5/8" Diameter, Bulldog 580404

    Chrome Trailer Dogbone & Coupler Lock Combo, 5/8" Diameter, Bulldog 580404

    Strong, break resistant trailer dogbone lock and coupler lock kit. Coupler lock fits around the coupler. Features a dual self-locking design. High security square key, chrome finish. Receiver Lock with 5/8" diameter, chrome finish. Limited Lifetime Warranty. Cequent 580404
    $43.49 $32.99
    Easy Access Trailer Adjustable coupler Lock by Bulldog, Cequent 580410

    Easy Access Trailer Adjustable coupler Lock by Bulldog, Cequent 580410

    Universal easy trailer access adjustable coupler lock with dust cap by Bulldog. 1/4" stainless steel pin. Adjusts incrementally from 9/16" to 2-3/4". Easy access models feature side key Entry, sliding dust cap, lock housing rotates 360 degrees. Limited Lifetime Warranty. Cequent 580410
    $24.99 $17.99
    Gorilla Guard Trailer Coupler Lock for 2" Couplers, Tow Ready 63228

    Gorilla Guard Trailer Coupler Lock for 2" Couplers, Tow Ready 63228

    Gorilla Guard Tow Ready trailer lock provides maximum protection for unattended trailers. Revolutionary design shields lock from tampering devices. Easy to use push button lock. Heavy duty cast construction. Fits 2" couplers. Die cast steel barrel keys. Limited 1 Year Warranty.
    $33.99 $29.99
    Gorilla Guard Trailer Coupler Lock for 2-5/16" Couplers, Tow Ready 63227

    Gorilla Guard Trailer Coupler Lock for 2-5/16" Couplers, Tow Ready 63227

    Gorilla Guard Tow Ready trailer lock provides maximum protection for unattended trailers. Revolutionary design shields lock from tampering devices. Easy to use push button lock Heavy duty cast construction. Fits 2-5/16" couplers. Die cast steel barrel keys. Limited 1 Year Warranty. Cequent 63227
    $42.49 $29.99
    Gorilla Guard Trailer Keyed Alike 2" Coupler Lock, Tow Ready TP20A1534

    Gorilla Guard Trailer Keyed Alike 2" Coupler Lock, Tow Ready TP20A1534

    Gorilla Guard Tow Ready trailer lock provides maximum protection for unattended trailers. Revolutionary design shields lock from tampering devices. Easy to use push button lock. Heavy duty cast construction. Fits 2" couplers. Die cast steel barrel keys. Limited 1 Year Warranty. Cequent TP20A1534
    $59.99 $44.99
    Locking 1/2" Chrome Trailer Hitch Bent Pin Assembly, Buyers BLHP125

    Locking 1/2" Chrome Trailer Hitch Bent Pin Assembly, Buyers BLHP125

    The Locking Hitch Pin from Buyers Products helps prevent trailer theft. It works like a hitch pin, but with a deadbolt style lock in place of a cotter pin. The 1/2" hitch pin is designed to fit 1-1/4" receivers. The pin's lock portion has a powder coated finish while the pin features a chrome-plated finish. Both finishes provide superior wear and corrosion resistance.
    $10.99 $8.99
    Locking 1/2" Plated Steel Bent Pin for 1.25" Receivers, CE Smith 32410

    Locking 1/2" Plated Steel Bent Pin for 1.25" Receivers, CE Smith 32410

    The Locking Hitch Pin from CE Smith helps prevent trailer theft. It works like a hitch pin, but with a deadbolt style lock in place of a cotter pin. The 1/2" hitch pin is designed to fit 1-1/4" receivers. Easy-to-use quick lock mechanism, plated steel hitch pin. Includes 2 keys and a rubber cap to keep out dirt and grime from the lock mechanism.
    $22.99 $16.99
    Locking 5/8" Bone Style Trailer Hitch Pin Assembly, Buyers BLHP300

    Locking 5/8" Bone Style Trailer Hitch Pin Assembly, Buyers BLHP300

    The Locking Bone Style Hitch Pin from Buyers Products helps prevent trailer theft. It works like a hitch pin, but with a deadbolt style lock in place of a cotter pin. The 5/8" hitch pin is designed to fit 2" receivers. The lock and pin are chrome plated steel and provide superior wear and corrosion resistance. Includes 2 keys and a rubber cap to keep out dirt and grime from the lock mechanism.
    $14.99 $10.99
    Locking 5/8" Chrome Trailer Hitch Bent Pin Assembly, Buyers BLHP200

    Locking 5/8" Chrome Trailer Hitch Bent Pin Assembly, Buyers BLHP200

    The Locking Hitch Pin from Buyers Products helps prevent trailer theft. It works like a hitch pin, but with a deadbolt style lock in place of a cotter pin. The 5/8" hitch pin is designed to fit 2" receivers. The pin's lock portion has a powder coated finish while the pin features a chrome-plated finish. Both finishes provide superior wear and corrosion resistance.
    $10.99 $8.99
    Locking 5/8" Plated Steel Bent Pin for 2" Receivers, CE Smith 32400

    Locking 5/8" Plated Steel Bent Pin for 2" Receivers, CE Smith 32400

    The Locking Hitch Pin from CE Smith helps prevent trailer theft. It works like a hitch pin, but with a deadbolt style lock in place of a cotter pin. The 5/8" hitch pin is designed to fit 2" receivers. Easy-to-use quick lock mechanism, plated steel hitch pin. Includes 2 keys and a rubber cap to keep out dirt and grime from the lock mechanism.
    $21.99 $15.99
    Premium 5/8" Chrome Steel Receiver Lock, 3.5" Span, Trimax T5

    Premium 5/8" Chrome Steel Receiver Lock, 3.5" Span, Trimax T5

    Trimax Chrome 5/8" Class V Key Receiver Lock. Wide 3-1/2" span. Hardened steel 5/8" diameter pin. Fits all Class III, IV & V receiver hitches. Chrome finish. Easy 1/4 turn locks and unlocks head. Test specifications exceed 40,000 lbs. O-ring seal & water tight cap helps seal out dirt & corrosion. Attractive sleek design. Rugged tubular key won't bend or break. Includes 2 keys.
    $27.99 $18.99
    Premium 5/8" Chrome Swing Away Trailer Lock, 6-1/8" Span, Trimax TH6

    Premium 5/8" Chrome Swing Away Trailer Lock, 6-1/8" Span, Trimax TH6

    Wide 6-1/8" span. Plated 5/8" machine hardened steel pin. Made of high quality chrome plated machine hardened steel. Easy 1/4 turn locks and unlocks head. O-ring seal & water tight cap helps seal out dirt & corrosion. Rigid lock can't "pop" open or be false locked. Attractive sleek design. Rugged tubular key won't bend or break. Patented design.
    $32.99 $21.99
    Reese Towpower Adjustable Brass Coupler Lock, Fulton 7005300

    Reese Towpower Adjustable Brass Coupler Lock, Fulton 7005300

    The adjustable brass trailer coupler lock provides security to prevent trailer theft. It features attractive, durable solid brass with a flat key design by Fulton. adjustment up to 1.016 inches. Limited 1 Year Warranty. Cequent 7005300.
    $19.99 $12.99
    Stainless Steel Trailer Dogbone Lock, 5/8" Diameter, Bulldog 580402

    Stainless Steel Trailer Dogbone Lock, 5/8" Diameter, Bulldog 580402

    Strong, break resistant stainless steel trailer dogbone lock. Features a dual self-locking design. High security square key, stainless steel finish. Dust cap included. Limited Lifetime Warranty. Cequent 580402
    $36.99 $27.99
    Tow Ready 1/2" Bent Pin Trailer Hitch Lock, Cequent 63224

    Tow Ready 1/2" Bent Pin Trailer Hitch Lock, Cequent 63224

    This bent-pin-style hitch lock lets you secure your ball mount, bike rack, fifth wheel base rails, cargo carrier or other accessory to your 1.25" trailer hitch receiver. Chrome finish guards against corrosion. 1/2" Diameter pin, 3-1/8" span. Limited 1 year warranty.
    $15.99 $11.99
    Tow Ready 5/8" Bent Pin Receiver Lock, 3.5" Span, Cequent 63253

    Tow Ready 5/8" Bent Pin Receiver Lock, 3.5" Span, Cequent 63253

    This bent-pin-style hitch lock lets you secure your ball mount, bike rack, cargo carrier or other accessory to your 2.5" x 2.5" trailer hitch receiver. Chrome finish guards against corrosion. 5/8" Diameter pin, 3.5" span. Limited 1 year warranty.
    $21.99 $16.99
    Tow Ready 5/8" Bent Pin Trailer Hitch Lock, Cequent 63223

    Tow Ready 5/8" Bent Pin Trailer Hitch Lock, Cequent 63223

    This bent-pin-style hitch lock lets you secure your ball mount, bike rack, cargo carrier or other accessory to your 2" and 2.5" trailer hitch receiver. Chrome finish guards against corrosion. 5/8" Diameter pin, 3.5" span. Limited 1 year warranty.
    $17.99 $12.99
    Trailer 5/8" Receiver Lock & 2-1/2" Span Coupler Lock Set, Trimax TM32

    Trailer 5/8" Receiver Lock & 2-1/2" Span Coupler Lock Set, Trimax TM32

    Keyed Alike Set. Includes one (T3) premium 5/8"by 2-3/4″ span receiver lock, one (TC2) coupler lock with 2-1/2" span and 4 keys, keyed alike. Hardened steel construction. Locks resist bending, breaking, prying, and drill-outs. Receiver lock fits 5/8" pin openings. Exclusive O-Ring and dust cap seals out dirt and corrosion. Lifetime Warranty.
    $43.99 $28.99
    Trailer 5/8" Receiver Lock & 3-1/2" Span Coupler Lock Set, Trimax TM33

    Trailer 5/8" Receiver Lock & 3-1/2" Span Coupler Lock Set, Trimax TM33

    Keyed Alike Set. Includes one (T3) premium 5/8"by 2-3/4″ span receiver lock, one (TC3) coupler lock with 3-1/2" span and 4 keys, keyed alike. Hardened steel constructions. Locks resist bending, breaking, prying, and drill-outs. Receiver lock fits 5/8" pin openings. Exclusive O-Ring and dust cap seals out dirt and corrosion. Lifetime Warranty.
    $43.99 $28.99
    Trailer 5/8" Receiver Lock & 7/8" Span Coupler Lock Set, Trimax TM31

    Trailer 5/8" Receiver Lock & 7/8" Span Coupler Lock Set, Trimax TM31

    Keyed Alike Set. Includes one (T3) premium 5/8"by 2-3/4″ span receiver lock, one (TC1) coupler lock with 7/8" span and 4 keys, keyed alike. Hardened steel constructions. Locks resist bending, breaking, prying, and drill-outs. Receiver lock fits 5/8" pin openings. Exclusive O-Ring and dust cap seals out dirt and corrosion. Lifetime Warranty.
    $43.99 $28.99
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