Truck Tire Inner Tube – TR442 Valve Stem – Fits 8.25-20 & 8.25R20 Tires
Part Number: TUB328
Heavy-duty inner tube designed for truck and bus tire applications. This tube is compatible with both bias and radial tire constructions and features a TR442 valve stem with a 90-degree bend for improved accessibility on many heavy-duty wheel assemblies.
Inner tubes are manufactured from high-quality rubber and designed to stretch to accommodate multiple tire sizes. This tube is commonly used with 8.25-20 and 8.25R20 heavy-duty truck tires.
Features
- Heavy-duty rubber inner tube
- TR442 90-degree valve stem
- Designed for truck and bus tire applications
- Compatible with bias and radial tires
- Flexible construction designed to stretch to fit multiple tire sizes
R&P Knowledge Hub
Inner tubes provide an airtight chamber inside tube-type tires used on many heavy-duty truck, agricultural, and industrial wheels. The valve stem allows inflation and pressure maintenance while the flexible rubber construction expands to conform to the tire cavity.
Different valve stem styles exist depending on wheel design. The TR442 valve stem features a 90-degree bend that helps improve accessibility when inflating tires on certain heavy-duty wheels.
When replacing an inner tube, verify tire size compatibility, valve stem type, and rim configuration to ensure proper fit and safe operation.
Specifications
| Specification | Detail |
|---|---|
| Part Number | TUB328 |
| Valve Stem Type | TR442 – 90° Bent Stem |
| Compatible Tire Sizes | 8.25-20, 8.25R20 |
| Construction | Heavy-Duty Rubber |
| Application | Truck / Bus Tires |
| Approximate Weight | 4.39 lb |
Verify tire size and valve stem compatibility before installation.