RubberMaster Trailer Tire Inner Tubes
Low Platform Trailer Tire Inner Tubes Engineered to Keep Heavy Loads on The Road

All RubberMaster trailer tire inner tubes are manufactured from premium rubber compounds to provide airtightness, resistance to heat and aging, and enhanced load-bearing capacity so that you can keep your equipment and cargo safe on the road. The inner tubes improve the stability of tires on platform trailers which are used for hauling construction equipment, agricultural equipment, and heavy-duty loads. We offer these radial trailer tire tubes in an extensive selection of sizes and valve types.

Count on guaranteed satisfaction, top performance, and fast shipping with every purchase. We offer a 30-day return policy for an unused product, or if they do not fit or are damaged due to shipping mistakes. Email us at


No. To ensure your credit card information stays secure, all payments must be made through Stripe at checkout and can not be taken over the phone.

Unfortunately, we are not able to offer pickup at our facility.

No, not at this time.  We offer either UPS Ground or FedEx Ground service.

Add your desired items to your cart. In the cart or at checkout, you must fill in your address including the city, state and zip code for the freight amount to calculate. Shipping charges are influenced by distance and units ordered.

They are very similar. Ply used to refer to the actual number of plies the tire was built with. Tires today don't need as many plies because of modern material improvements are usually given a Load Range instead, represented by a letter. Each letter is equivalent to 2 plies. See the chart below to help guide you:

Load Range B equivalent to 4 Ply rating

Load Range C equivalent to 6 Ply rating

Load Range D equivalent to 8 Ply rating

Load Range E equivalent to 10 Ply rating

Load Range F equivalent to 12 Ply rating

Load Range G equivalent to 14 Ply rating

ST: Special Trailer 

P: Passenger Vehicles (cars, vans, light-duty trucks, and SUVs)

T: Temporary Spare

C: Commercial (vans or delivery trucks - capable of hauling heavy loads)

LT: Light Truck