2B12-340 Goodyear Air Suspension Air Spring 578-92-3-309 Rubber Air Bags For Recreational Vehicle
The 2B12-340 Goodyear Air Suspension Air Spring is a high-quality replacement component designed for recreational vehicles, providing superior ride comfort and vehicle stability.
Air suspension systems utilize compressed air within air springs instead of traditional leaf springs to support the vehicle body. This advanced technology enables automatic leveling and height adjustment, offering numerous benefits including enhanced ride comfort, reduced vibration and noise, protection of chassis and cargo, and automatic vehicle stability based on load variations. Widely used in trucks, buses, trailers, RVs, and modified vehicles, air suspension significantly improves driving safety and handling performance.
Brand: GUOMAT
Model Name: 2B12340
Material: Rubber + Steel
Warranty: 1 Year
Type: Convoluted Air Spring
| Goodyear Part Number | 2B12-340 / 2B 12-340 / 2B12 340 |
| Goodyear Bellows Number | 578-92-3-309 / 578 92 3 309 / 578923309 |
| Firestone Part Number | W01-358-7124 / W01 358 7124 / W013587124 |
| Firestone Bellows Number | 22C |
| Replaces MCI | 12C-3-52 |
| Replaces PREVOST | 63-0185 |
| Mounting Interface | |
| Flange Plate Diameter | 9.78 in |
| Bolt Circle Diameter (BCD) | 8.94 in |
| Bolts | 8 pieces, specification 5/16-18 UNF-2A |
| Height & Stroke | |
| Minimum Height | 3.4 in |
| Maximum Height | 10.9 in |
| Total Stroke | 7.5 in |
- Lower Operating Costs, Higher Profitability: GUOMAT air springs help reduce overall vehicle operating expenses, improving your long-term return.
- Longer Service Life: Designed for durability, their lifespan is at least twice that of steel springs, and in many applications can reach up to four times longer.
- Minimal Maintenance: With fewer friction components, air springs require almost no routine maintenance.
- Extend Tire & Brake Pad Life: Smoother suspension reduces tire wear and brake consumption.
- Protect Critical Vehicle Components: They significantly reduce vibration-related damage to electrical systems, HVAC units, cab mounts, exhaust systems, chassis parts, seals, wiring, and drivetrain components.
- Enhance Driver Comfort & Safety: Reduced vibration minimizes driver fatigue, improving safety, productivity, and long-term driver satisfaction.
- Excellent Load Balancing Between Axles: Stable and consistent axle-to-axle load distribution allows vehicles to maintain maximum legal speed safely and efficiently.
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