The Best Trailer Supply Shop in Southern California

Why Is Modern Trailer Supply Is The Best?

With more than 74 years of serving Southern California, we are one of the only companies that have over 7,000 parts in stock!.

If you are looking for trailer supplies, boat supplies or recreational vehicle supplies, Modern Trailer Supply is the place for you! We've been family owned since 1947 and have both vintage and modern parts in stock. In addition we strive to price match to any other local trailer companies. So come on town and visit Modern Trailer Supply! Our staff is always friendly, knowledgeable and helpful!

For over 74 years, Modern Trailer Supply has been family owned and operated.

We are locally centered in El Monte California and have a wide variety of products from lights, electrical equipment and accessories.

Why people choose us?

  • Knowledgable Experts
  • Huge Selection of Parts
  • Low Prices

Modern Trailer Supply - 11035 Garvey Ave El Monte, CA 91733


5 star ratingThe guy that runs this place is awesome! Very knowledgeable and thoroughly explains everything. Seems like a very intelligent guy! He really really knows his trailer stuff, and has helped me ID the parts i need on several occasions. Well stocked shop and very reasonable prices, always has the stuff I need when I need it, meaning right away on a moments notice! He even went out of his way and waited for me after closing time on one occasion to allow me to pick up stuff I needed. I'm your customer for life!

Peter P. Avatar
Peter P.

5 star ratingThis hidden gem has been in the same location since 1947 with second generation ownership. They have moved from post WWII trailers through campers and on to everything trailer. Whether they have it or not, the service and advice are beyond your expectations. Even if you only have a question, start here you will not be disappointed. They may be here for another 73 years with a reputation like theirs.

Richard W. Avatar
Richard W.

Always helpfull .. definitely my go to place

Zip Diver Avatar
Zip Diver
Contact Us