Your browser's Javascript functionality is turned off. Please turn it on so that you can experience the full capabilities of this site.

Shop Trailer Couplings & Locks

Trailer Couplings & Locks

Filter & sort by

1,027 Results

Sort by

Filter by

Sorted by

Showing 1 - 34 of 1,027 Results

Cruisemaster

Cruisemaster DO35 Coupling Lock

$108.99 ^{^}

(24)

Delivered to you

Pick up today
SCA

SCA Trailer Coupling Lock

$39.99 ^{^}

(260)

Delivered to you

Pick up today
SCA

SCA Wheel Clamp

$60.99 ^{^}

(108)

Delivered to you

Pick up today
SCA

SCA Tow Hitch, Clamp

$20.49 ^{^}

(60)

Delivered to you

Pick up today
SCA

SCA Trailer Coupling Lock

$39.99 ^{^}

(157)

Delivered to you

Pick up today
SCA

SCA Hitch Pin, Carbon Steel - 5 / 8 inch

$19.99 ^{^}

(51)

Delivered to you

Pick up today
SCA

SCA Trailer Lock, Straight Type, Carbon Steel - 5 / 8 inch

$39.99 ^{^}

(80)

Delivered to you

Pick up today
Catalogue Out Now

Ends Sunday
9th August 2026
Trojan

Trailer Wheel Clamp Defender Suits 195-235mm Tyres

$112.99 ^{^}

(36)

Delivered to you

Pick up today
Hayman Reese

Hayman Reese Hitch Pin, Lockable, Straight

$52.99 ^{^}

(33)

Delivered to you

Pick up today
AL-KO

AL-KO Lockable Coupling Fixed 2/3 Hole 2000kg

$109.99 ^{^}

(1)

Delivered to you

Pick up today
AL-KO

AL-KO Lockable Coupling Fixed Lever 3500kg

$189.99 ^{^}

(8)

Delivered to you

Pick up today
Trojan

Trojan Galvanized Trailer Coupling, 2 Hole - 2000kg

$62.99 ^{^}

(37)

Delivered to you

Pick up today
AL-KO

AL-KO Lockable Coupling Override 2000kg

$229.99 ^{^}

Delivered to you

Pick up today
Hayman Reese

Hayman Reese Hitch Pin - Pull Pin with Clip

$24.99 ^{^}

(24)

Delivered to you

Pick up today
SCA

SCA Lockable Angled Hitch Pin, Carbon Steel - 5 / 8 inch

$39.99 ^{^}

(42)

Delivered to you

Pick up today
SCA

SCA Wheel Clamp, Heavy Duty, 4WD

$52.99 ^{^}

(40)

Delivered to you

Pick up today
SCA

SCA Anti-Theft Wheel Lock

$69.99 ^{^}

(64)

Delivered to you

Pick up today
Hayman Reese

Hayman Reese Hitch Pin, Lockable, Extra Long

$57.99 ^{^}

(30)

Delivered to you

Pick up today
Trojan

Trojan Override Braking Coupling - 2000kg

$114.99 ^{^}

(11)

Delivered to you

Pick up today
Trojan

Trailer Wheel Clamp Defender Suits 165-195mm Tyres

$102.99 ^{^}

(37)

Delivered to you

Pick up today
Hayman Reese

Hayman Reese Hitch Pin, Lockable, Angled

$63.99 ^{^}

(21)

Delivered to you

Pick up today
Special Order

Sunrise

SUNRISE Trailer 14" Wheel Commodore (Holden HQ), 185R14LT Black - WRTHQ14B185

$149.99 ^{^}

Delivered to you

Pick up today
Special Order

Sunrise

SUNRISE Off-Road Poly Block Override Coupling 2000kg Rated Trailer Tow Hitch Zinc - ORCORPZ

$179.99 ^{^}

Delivered to you

Pick up today
Special Order

Sunrise

SUNRISE Trailer 12" Brake Drum to suit Landcruiser 6 Stud, 2T - EHDLC12N6

$219.99 ^{^}

Delivered to you

Pick up today
Special Order

Sunrise

SUNRISE D Shackle Zinc 8mm - DS8Z

$3.39 ^{^}

Delivered to you

Pick up today
Special Order

Sunrise

SUNRISE Coupling Clip with Spring - CCZ

$15.99 ^{^}

Delivered to you

Pick up today
Special Order

Sunrise

SUNRISE Link Chain 13mm Zinc 3.5 Tonne Per Metre - LC13N-PM

$39.99 ^{^}

Delivered to you

Pick up today
Special Order

Sunrise

SUNRISE 12" Hydraulic Backing Plate Left Hand Side - HB12P-L

$144.99 ^{^}

Delivered to you

Pick up today
Special Order

Sunrise

SUNRISE 12" Hydraulic Backing Plate Right Hand Side - HB12P-R

$144.99 ^{^}

Delivered to you

Pick up today
Special Order

Sunrise

SUNRISE Trailer 14" Sunraysia Steel Rim LandCruiser 6 Stud, White - WR6LC14P

$79.99 ^{^}

Delivered to you

Pick up today
Special Order

Sunrise

SUNRISE 8mm G80 Vehicle Chain Safety Hook Hammerlock and Eye Sling Hook Set - LCHS8G80

$79.99 ^{^}

Delivered to you

Pick up today
Special Order

Sunrise

SUNRISE Hydraulic Override Coupling Complete 50mm 2T - HCCZ

$144.99 ^{^}

Delivered to you

Pick up today
Special Order

Sunrise

SUNRISE Alarm Pad Lock Aluminium - APL

$26.99 ^{^}

(1)

Delivered to you

Pick up today
Special Order

Sunrise

SUNRISE Trailer Cage Double Door Galvanised 8 x 5 x 3 Feet - C853G

$799.00 ^{^}

(1)

Delivered to you

Pick up today

Showing 1 - 34 of 1,027 Results

Discover Our SUPER Range of Trailer Couplings & Locks

Trailer couplings are an important part of your towing setup, connecting your vehicle to your trailer or caravan. Choosing a coupling that matches your trailer type, tow ball size, and mounting setup helps ensure the components fit together correctly and are ready for use. Taking note of your existing coupling style can also make replacement or upgrades more straightforward.

Understanding trailer coupling fitment

Trailer couplings are used to connect your trailer to a tow ball, allowing controlled movement between the vehicle and trailer while driving. It’s important to select a coupling that matches your trailer’s mounting pattern and connection type, with common options including 2-hole, 3-hole, and 4-hole mounting styles. Checking measurements such as bolt spacing and tow ball size before purchasing can help ensure compatibility and make installation more straightforward. This can be especially useful when replacing an existing coupling or setting up a new trailer.

A range of options to suit different trailer setups

Our range of trailer couplings includes options suitable for a variety of trailer types and applications. Having different mounting styles and configurations available makes it easier to select a coupling that aligns with your setup, whether you're using a small utility trailer or a larger caravan. Considering how your trailer is used and how it connects to your tow vehicle can help narrow down the most suitable option.

Choosing the right trailer lock

Trailer locks are used to help restrict access to the coupling when your trailer is unattended, with options designed to fit inside or over the coupling depending on the product style. Some locks feature a key-lockable design with included keys and protective covers, while others use mechanisms that sit over or within the coupling to block connection to a tow ball. Certain designs use a bar or insert that fits into the coupling and prevents it from being attached to a vehicle. Checking compatibility with your coupling type before purchase can help ensure the lock fits correctly and works as intended.

Shop trailer couplings and locks at Supercheap Auto

Explore our range of trailer couplings and trailer locks online or visit your local Supercheap Auto store to find a product that suits your trailer setup. With options available to suit a range of trailer types and mounting configurations, it’s easier to find a product that matches your requirements. If you're unsure which option is compatible, our team can help you choose a suitable fit, and bringing details like your coupling type or measurements can help make the process quicker and more accurate.

Frequently Asked Questions - Trailer Couplings & Locks

Can trailer coupling locks be used with all types of trailers?

Trailer coupling locks are available in different sizes and configurations to suit various coupling types. It’s important to check that the lock is compatible with your specific coupling to ensure it fits correctly and can be used as intended.

How can I maintain my trailer coupling?

Maintaining a trailer coupling involves checking for signs of wear, damage, or loose components, and keeping the coupling clean and free from debris. Following manufacturer guidance for maintenance can help ensure it continues to function as intended, and if you're unsure, our team can assist with general product advice.

Shop Trailer Couplings & Locks

Trailer Couplings & Locks

Filter by Available In Store

Filter by Special Order

Cruisemaster

SCA

SCA

SCA

SCA

SCA

SCA

Trojan

Hayman Reese

AL-KO

AL-KO

Trojan

AL-KO

Hayman Reese

SCA

SCA

SCA

Hayman Reese

Trojan

Trojan

Hayman Reese

Sunrise

Sunrise

Sunrise

Sunrise

Sunrise

Sunrise

Sunrise

Sunrise

Sunrise

Sunrise

Sunrise

Sunrise

Sunrise

Filter by Available In Store

Filter by Special Order

Discover Our SUPER Range of Trailer Couplings & Locks

Understanding trailer coupling fitment

A range of options to suit different trailer setups

Choosing the right trailer lock

Frequently Asked Questions - Trailer Couplings & Locks

Can trailer coupling locks be used with all types of trailers?

How can I maintain my trailer coupling?