Installation Tips and Bolt Thread Size for the Curt Trailer Hitch # 11227 on a 1992 Toyota Corolla


You say the bolts on the back side are 12 mm. Are they 12 mm X 1.50, or are they 12 mm X 1.75 ?

Expert Reply:

The bolts included with the Curt Trailer Hitch # 11227 are M12 - 1.25 x 40mm hex. All of the hardware included with this hitch is listed in the installation instructions, see link.

On older vehicles it is a good idea to clean the threads with a wire brush, see video demonstration. The Battery Post and Terminal Cleaner, # DW00254, is a good choice for this purpose.

Since your vehicle is a 1992 model, you may need to use a tap or make one. Using a identically sized bolt you can create your own tap. We have a video showing this process for you to review also, see link.

Some items you may need to complete your towing setup are listed below.

Draw-Tite Trailer Wiring, # 119178KIT
1-7/8 inch Hitch Ball, # 19256
2 inch Hitch Ball, # 19258

expert reply by:
Robert G

Ask The Experts a Question >>

Products Referenced in This Question

Product Page this Question was Asked From

Similar Expert Q&A Pages

See More Q&A Expert Answers >>

About Us
photos and videos

Original Photos & Videos

Produced to make sure you know what you are getting and you get exactly what you need.


Installations Completed

To make sure products work and fit the way they are supposed to.

etrailer call center

Phone Calls & Emails Answered

1,125,924 phone calls and 1,350,587 emails to help find the right solution.

etrailer training

Average Hours of Product Training

We get to know our products firsthand so experts can better help you.

etrailer service

Years of Quality Customer Service

Assisting our neighbors and customers, face to face at the counter.

etrailer experts

Pages of Expert Information

Created to make sure you have all the answers to your questions, from real experts.