How to Determine Correct Hitch Ball Size for Hadco MK-61 Trailer Coupler
Question:
My trailer came with a 1-7/8inch hitch ball, but it feels very loose. I bought a 2inch ball to test and it fits tightly. I am unsure if the hitch is meant to have the larger ball or is just out of adjustment for the smaller ball. There is nothing stamped on the top of the Hadco MK-61 coupler.
asked by: Daniel R
Expert Reply:
There are three sizes of hitch ball that are all in the same general size ballpark: 1-7/8-inch, 50mm and 2-inch. If your coupler has an adjustment option that may do the trick, but if not you may want to replace the coupler with one that does indicate the correct ball size. This is typically stamped on the coupler as a safety requirement (thank you for checking your coupler for this information). We do offer coupler rebuild kits but nothing for Hadco.
Our range of couplers is shown on the linked page. At the top of the page you can click on the type you need, such as a straight tongue coupler like # CT-3003-Z or a 50-degree a-frame coupler like # CA-5210-B. Select the coupler based on the trailer's gross weight rating.
If your 2-inch ball fits well in the coupler and there is no visible sign of wear or damage to the coupler then that alone may be the issue.
Product Page this Question was Asked From
A-Frame Trailer Coupler - Yoke Latch - Black - 2" Ball - Weld On - 8,000 lbs
- A-Frame Trailer Coupler
- Standard Coupler
- Weld-On
- 8000 lbs GTW
- 2 Inch Ball Coupler
- Yoke Latch
- etrailer
more information >
Featured Help Information
Miscellaneous Media
Continue Researching
- Shop: A-Frame Trailer Coupler - Yoke Latch - Black - 2" Ball - Weld On - 8,000 lbs
- Q&A: How to Install the Timbren Silent Ride Suspension
- Shop: Demco A-Frame Trailer Coupler w/ Jack Hole - eZ-Latch - Primed - 2" Ball - Weld On - 10K
- Shop: Timbren Axle-Less Trailer Suspension w/ Idler Hubs - Standard Duty - No Drop - 5 on 4-1/2 - 2K
- Shop: Buyers Products RV Backup Camera System w/ Night Vision - Rear Mount - 7" Screen
- Shop: Timbren Silent Ride Suspension for Single Axle Trailers w/ 2" Square Axles - 2,000 lbs
- Shop: Timbren Axle-Less Trailer Suspension - Standard Duty - No Drop - 2,000 lbs
- Shop: Timbren Axle-Less Trailer Suspension - Heavy Duty - Long Spindle w/ No Drop - 4 Bolt Flange - 2.2K
- Shop: RV Camera
- Video: Timbren Axle-Less Trailer Suspension System Installation
- Video: Ark Xtreme Off-Road Ratcheting Trailer Jack Review
- Search Results: timbren
- Search Results: independent torsion suspension
- Search Results: 7 pin connector
- Search Results: dexter torsion axle
- Search Results: 9 torflex axle
- Search Results: dexter torflex
- Search Results: dexter 2000 lb axle
- Article: Trailer Wiring Diagrams
- Shop: Trailer Hitch
- Q&A: Replacement LED Top Command Clearance Light With SAE-AP2-16 On Lens For 2018 Sunseeker Motorhome
- Video: Titan Trailer Brakes T2385200 Review
- Shop: Trailer Wiring
- Q&A: Replacement 5 Leaf Slipper Spring for a Tandem Axle Dump Trailer with Two 6K Axles
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Q&A: Recommended Replacement for Atwood Surge Brake Actuator 85778
- Video: Tekonsha T-One Vehicle Wiring Harness Installation - 2018 Jeep JL Wrangler
- Shop: Fifth Wheel Hitch
- Article: How to Choose the Right Trailer Hitch Class
- Shop: Brake Controller
