
Agricultural Tractor Tyre Inner Tube 18.4-38 16.9/18.4-38 18.4r38 16.9-38 Big Tractor Tire 18.4 Butyl Inner Tube. Superior Airtightness: Butyl rubber offers excellent airtightness, holding air longer than natural rubber. Long Lifespan: Resistant to aging with a lifespan typically longer than natural rubber inner tubes. Cold Environment Performance: Natural rubber options provide good elasticity and stable performance in cold temperatures. Puncture Protection: Tyre flaps block sharp objects like glass and stones to prevent inner tube punctures. Rim Protection: Flaps act as a cushioning layer preventing metal rim friction and potential leaks. 100% Quality Testing: All tubes undergo 100% testing before packing to ensure safety and reliability. OEM Service Available: Custom production available for brand, packing, and weight specifications. Wide Application Range: Suitable for tractors, harvesters, trucks, cars, and motorcycles across global markets.