BT021T11A4 Reversible Sleeve Truck Air Spring 39 kN Conti 810MB OEM
Basic Properties
Trading Properties
| Piston Diameter: | 260 Mm | Piston Height: | 140 Mm |
|---|---|---|---|
| Load Capacity: | 39 KN | Max Inflation Pressure: | 0.7 MPa |
| Fatigue Life: | 18.17 Million Cycles | Operating Temperature: | -40 C To 80 C |
| Highlight | Conti 810MB Truck Air Spring,OEM Truck Air Spring,39 kN Truck Air Spring |
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The EVEN BT021T11A4 is a reversible sleeve air spring engineered for heavy truck, trailer and commercial vehicle chassis suspension. It corresponds to ContiTech 810MB and fits heavy truck and trailer air suspension. With a load capacity of 39 kN, a 260 mm piston and 140 mm piston height, it keeps stable ride height and reliable load-leveling for high-mileage freight transport.
| Category | Truck Air Spring (Reversible Sleeve Type) |
|---|---|
| ContiTech Model | 810MB |
| Customer | DAF, Scania, Mercedes-Benz, BYD, Chinese heavy trucks and trailers |
| Vehicle Model Info | heavy truck and trailer air suspension |
| Piston Diameter | 260 mm |
| Piston Height | 140 mm |
| Load Capacity | 39 kN |
| Max Inflation Pressure | 0.7 MPa |
| Our Model | BT021T11A4 |
| Assembly Model | B02-1T11A4-1 |
| Firestone Model | W01-095-0445 / (1T19L-7) |
| Brand | EVEN (Qingdao Guoxiang Yiwen Rubber Technology Co., Ltd.) |
| Certification | IATF 16949 |
- Reversible sleeve design for stable load-leveling on truck and trailer air suspension
- Specialty rubber plus "Liquid Gold" compound for ultra-long fatigue durability
- Fatigue life up to 18.17 million cycles, more than double the GB/T 13061 requirement
- Rubber-to-cord bonding improved 30%-50% over conventional products
- Structural topology optimization: reinforced ends with a flexible central buffer
- Tested for 80 C and -40 C vertical durability plus 1/4 suspension durability
- IATF 16949 certified production with full lifecycle traceability
heavy truck and trailer air suspension, matched with OE vehicles from DAF, Scania, Mercedes-Benz, BYD, Chinese heavy trucks and trailers, for OEM and aftermarket replacement.

Contact Person: Ms. EVEN
Tel: +86 18561829173