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 ratingThese guys stand for the products they sell. Very enthusiastic and knowledgeable in the trailer business. They offer great advice as well. I drive 2 hrs to this place whenever I need some stuff. Was recommended by my cousin initially. Would definitely come back!

jimmy o. Avatar
jimmy o.

Best trailer part store in the whole LA county an IE...workers know there stuff thank you Ray and Tim

A Gone Avatar
A Gone

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.