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Funmit

1 Pack Universal Coupler Ball Trailer Lock, Yellow, 2 Keys | Fits 1-7/8", 2", and 2-5/16" Couplers, Boat Camper Accessories for Travel Trailers, Adjustable, Heavy-Duty Steel, Hitch Lock

Name: Funmit 1 Pack Universal Coupler Ball Trailer Lock, Yellow, 2 Keys | Fits 1-7/8", 2", and 2-5/16" Couplers, Boat Camper Accessories for Travel
Brand: Funmit
SKU: B08R5X93XR
Price: 16.99 USD
Availability: InStock

By SpecPicks Editorial · Verified 2026-08-21

$16.99

Buy on Amazon — $16.99 Compare to similar flight sim gear

*Price sourced from Amazon.com. Last updated 2026-08-21. Price and availability subject to change.

Bottom line: The 1 Pack Universal Coupler Ball Trailer Lock, Yellow, 2 Keys | Fits 1-7/8", 2", and 2-5/16" Couplers, Boat Camper Accessories for Travel Trailers, Adjustable, Heavy-Duty Steel, Hitch Lock is a niche pick — read recent reviews before buying in the flight sim gear category, priced around $16.99. Read recent reviews carefully before committing.

SpecPicks Verdict

SpecPicks classifies Funmit 1 Pack Universal Coupler Ball Trailer Lock, Yellow, 2 Keys |… as a niche pick — read recent reviews before buying in the flight sim gear category, based on our editorial and benchmark analysis and our ranking model that weights rating × review-volume × price-fit. Funmit's positioning sits within the broader category mid-tier. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.

Common buyer scenarios for flight sim gear of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.

Pros & Cons

Pros

✓ Backed by Funmit's warranty and support channels
✓ Ships via Amazon with Prime eligibility and the standard returns policy

Cons

✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified

Key Features

𝗣𝗲𝗿𝗳𝗲𝗰𝘁 𝗖𝗼𝗺𝗽𝗮𝘁𝗶𝗯𝗶𝗹𝗶𝘁𝘆 - Funmit universal adjustable trailer Lock fits 1-7/8”, 2”, 2-5/16” couplers, you can control how tight the trailer lock is by adjusting the 11-position ratchet, (If you find it inappropriate after purchasing, you can contact us within 180 days of purchase)
𝗣𝗿𝗼𝘁𝗲𝗰𝘁 𝗬𝗼𝘂𝗿 𝗧𝗿𝗮𝗶𝗹𝗲𝗿 - Use our trailer lock is a great way to prevent theft of your truck or trailer while it's parked. The trailer lock is made of high quality materials and combines with anti-theft technology to ensure safety, and the U-shape lock can resist picking, prying and drilling. When you leave the trailer, try locking your trailer with a trailer lock to keep it away from thieves
𝗛𝗶𝗴𝗵-𝗤𝘂𝗮𝗹𝗶𝘁𝘆 𝗠𝗮𝘁𝗲𝗿𝗶𝗮𝗹𝘀 - Trailer hitch lock is made of heavy-duty solid /rigid A36 Steel and aluminum alloy, durable, rustproof and weatherproof, you don't have to worry about the lock becoming fragile in harsh environments, on the contrary, it will serve you well
𝗘𝗮𝘀𝘆 𝘁𝗼 𝗜𝗻𝘀𝗮𝘁𝗮𝗹𝗹 - Trailer coupler lock uses one key to correspond to one lock. Put the lock on the lower end of the coupler first, then insert the U-shaped anti-theft lock pin into the lock, turn the key. When using the key, you only need to turn the key and lock the trailer by adjusting the ratchet. It only takes 1 minute to install successfully
𝗦𝗵𝗼𝗽 𝘄𝗶𝘁𝗵 𝗖𝗼𝗻𝗳𝗶𝗱𝗲𝗻𝗰𝗲 - Funmit adhere to provide all customers with a simple, streamlined shopping experience of large appliance replacement parts, and prove that we have the highest quality parts and service out there. We stand by our products, and our customers are our focus as a business. If you have any quality problem during 180-day free period, please contact Funmit customer service team in time, and we will try our best to solve your problems

Full Specifications

Brand	‎Funmit
Model	‎trailer lock
Exterior	‎Chrome
Special Features	‎For Rv boat trailer, Trailer lock
Package Dimensions	‎6.38 x 5.79 x 3.31 inches
Manufacturer Part Number	‎D-Funmit-trailer lock 72783

Ready to buy?

Funmit 1 Pack Universal Coupler Ball Trailer Lock, Yellow, 2 Keys | Fits 1-7/8", 2", and 2-5/16" Couplers, Boat Camper Accessories for Travel Trailers, Adjustable, Heavy-Duty Steel, Hitch Lock is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

Check price on Amazon →

*Price sourced from Amazon.com. Last updated 2026-08-21. Price and availability subject to change.