Trailer Supplies

If you own a RV, boat, horse trailer, travel trailer or any other kind, our team at the Modern Trailer Supply is here to help. Our store in El Monte, CA was opened in the 1947 and has been serving customers nationwide for almost 74 years. Our store is packed with trailer parts like lights, reflectors, hitches, electrical, water pumps tires and more! There are really four main reasons why our customers buy from us, rather than Amazon or any other retailer.


Most of our customers who are looking for trailer supplies shop online. However, in most cases they don’t know exactly what they need. This is why it’s important to work with a trailer supply store that has almost 70 years of experience. We have almost 7,000 products in our store and our trailer technicians will help you find the best trailer parts at an affordable price. In fact, if you visit our office, we can provide you a trailer parts catalog that will detail the specs that will match your make and model. Just call or visit and you’ll have an opportunity to work with our trailer parts experts!


If you are looking for affordable trailer parts, Modern Trailer Supply is the company that you need to work with. Because of the fact that our owners buy bulk trailer parts, we can in turn offer the discount to our customers. In fact, if you visit our store and see a part located on a third-party site, we will do our best to price match it. Our low-cost trailer parts come from some of the biggest trailer parts manufactures like Redneck Trailer Supplies, Dexter Trailer Supplies, Rockwell American and Wilson Trailer Company. So, if you’re looking for quality, yet cheap trailer supplies, just contact us by phone or email.


As mentioned above, Modern Trailer Supply has been in operation for north of 70 years. In fact, we are the oldest trailer supply company in Southern California. The company was established in the 1940’s by Mr. Wimbash and was subsequently traded hands to his son. As a result, Modern Trailer Supply is one of the most well-known trailer parts depot stores in the USA. If you have questions about your RV, trailer or motorhome, just call us today. We have the answers you’ve been looking for.


Our RV trailer parts store is centrally located in El Monte, CA. Given the fact that there aren’t many trailer supply stores in California, we can ship or special order any hard to find trailer parts right to your front door. If you’re looking for boat trailer parts, utility trailer parts or RV trailer parts, just call or visit our store!

View some of our large selection of trailer supplies