TowWorks 79852 Keyed Alike 5/8 in Trailer Hitch Lock Set - Secure Fit
TowWorks 79852 Keyed Alike 5/8 in Trailer Hitch Lock Set - Secure Fit
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In this review the TowWorks 79852 keyed alike trailer hitch lock set is evaluated for owners who need a simple, secure way to protect adjustable channel mounts and common Class III to V receivers. The single biggest reason to buy is its practical combination of a long 5/8 in adjuster pin and a standard 5/8 in receiver pin that cover many CURT-style adjustable hitches and 2 in to 2.5 in receivers while offering keyed alike convenience for multiple tow points.
Key Features
- Adjuster pin fit: The extra long 5/8 in adjuster pin with a 4-1/2 in span fits most CURT channel style adjustable hitches and several adjustable pintle hooks for easy compatibility.
- Receiver compatibility: The 5/8 in receiver pin with a 3-1/4 in span is designed to fit Class III and IV hitches with 2 in and 2-1/2 in receivers for secure locking of standard tow receivers.
- Keyed alike convenience: The package includes two locks and four tubular keys keyed alike so multiple pins can be opened with the same key for faster hookup and convenience.
- Push lock design: A 1/4 turn push lock mechanism and watertight dust rubber cap make the locks easy to operate and help prevent corrosion in the locking chamber.
- Anti-rattle protection: Rubber O rings reduce rattling and keep the hitch pin steady, with adjustable O ring quantity to fine tune fit in slightly different tube sizes.
- Extra safety option: A separate spring clip (cotter pin) provides a backup safety method and can be used with or without the lock mechanism for added peace of mind.
Who It's For
The TowWorks 79852 is a good match for trailer owners who use adjustable channel style hitches such as many CURT models and commonly tow with Class III or IV receivers; the keyed alike setup benefits those with multiple tow points who want one key to operate both pins. It suits users who prioritize a straightforward, durable locking pin with a push-button action and those who appreciate the additional cotter pin safety option.
This set is not for every hitch owner: it explicitly does not fit FASTWAY adjustable hitches, and buyers should measure their hitch tube and span dimensions before purchasing to ensure the 4-1/2 in adjuster span and 3-1/4 in receiver span will work with their hardware.
Pros & Cons
Pros
- Well made with sturdy construction that customers report feels secure and reliable for normal towing use.
- Keyed alike two-lock package with four keys simplifies locking and unlocking multiple hitch points.
- Rubber O rings and watertight dust cap reduce rattles and help protect the lock from moisture and corrosion.
Cons
- Does not fit FASTWAY adjustable hitches, so fit must be verified before purchase.
- Slight fit adjustments may be required by adding or removing O rings to match different brand tube sizes.
Specifications
| Brand | TowWorks |
| Adjuster pin diameter | 5/8 in |
| Adjuster pin span | 4-1/2 in |
| Receiver pin span | 3-1/4 in |
| Receiver compatibility | Class III and IV, 2 in and 2-1/2 in receivers |
| Package contents | 2 locks, 4 keyed alike keys, spring clip (cotter pin), O rings |
| Lock design | Push lock with 1/4 turn and dust rubber cap |
Our Verdict
The TowWorks 79852 keyed alike hitch lock set is a practical, value-oriented choice for owners of compatible adjustable channel hitches and 2 in to 2.5 in receivers who want simple keyed alike convenience and solid anti-rattle protection. Verify fit for your hitch model first, and this set will deliver a dependable, easy-to-use locking solution with the added safety of a cotter pin.
Frequently Asked Questions
Will these locks fit my adjustable CURT channel hitch?
They are designed to fit many CURT channel style adjustable hitches such as 45900 series models; confirm the 4-1/2 in adjuster span and 5/8 in diameter match your hitch.
Can I use the lock without the cotter pin?
The lock can be used with or without the spring clip, but the cotter pin should be inserted for additional safety when the lock is in use.
Do the O rings eliminate all rattle?
Rubber O rings reduce rattling and allow minor fit adjustment, but you may need to add or remove O rings for the best fit on different brand tube sizes.
Editor's Take
The TowWorks 79852 keyed alike hitch lock set is a practical, value-oriented choice for compatible adjustable channel hitches and 2 in to 2.5 in receivers, offering keyed alike convenience, anti-rattle O rings, and a cotter pin safety option.

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