Ball Mount - 9 1/4" Drop (One Tool Torque) by Master Lock

Ball Mount - 9 1/4" Drop by Master Lock 2979AT
Master Lock - 2979at
Authorized Dealer
Master Lock #2979AT
Master Lock - 2979at
Authorized Dealer
Sale Price:
  • $36.51
Save $3.65 more with Code: 10EXTRA - details
Usually Ships within 24 to 48 Hours (excluding Saturday and Sunday)
Arrives 1 to 5 days after product ships


Master Lock's "One Tool Torque" ball mounts are designed to make installing and tightening your hitch ball much easier than with standard ball mounts. When used with a "One Tool Torque" hitch ball only a single wrench is required to tighten the hitch ball nut. This also helps to eliminate damage to the finish of the hitch ball caused by slipping wrenches and sockets. This ball mount fits with any 2" x 2" receiver trailer hitch (Class 3 and above). Powder coated for a lasting, durable finish.

Features and Benefits

  • Fits all Class 3 Receiver Hitches
  • One Tool Torque makes tightening hitch balls easier than ever
  • Eliminates damage to hitch ball finish caused by using a wrench on the upper portion
  • Master Lock Quality & Trust
  • Black powdered for a lasting finish

Installation Notes

While the "One Tool Torque" Ball Mount can be used with most all hitch balls, to take advantage of the "One Tool Torque" feature this ball mount must be use with a "One Tool Torque" hitch ball.

Tech Specs

Fits Receiver Type: Class 3 (2" x 2")
Amount of Drop / Raise: 9 1/4" Drop / 8" Raise
Weight Capacity: 3500 lbs Trailer Weight / 350 lbs Tongue Weight
Receiver Pin Hole Size: 5/8" (Class 3 size)
Shank Hole Size (hole hitch ball mounts through): 1" diameter
Finish: Black Powder Coat
Weight: 14 lbs.

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