Description
Genuine OEM air spring from Firestone Industrial Products. The W01-358-8729 is a reversible sleeve Airide air spring (bellows number 1T17BB-2) designed for Meritor trailer suspension systems. It directly replaces Meritor 202796 and is built with Firestone’s four-ply natural rubber bellows construction, delivering reliable load support and ride quality with minimal maintenance.
Signs You Need a New Air Spring
- Trailer sagging or leaning to one side under load
- Visible cracking, dry rot, or tears in the rubber bellows
- Audible air leaks from the suspension area
- Excessive bouncing, swaying, or poor ride quality
- Air compressor cycling more frequently than normal
Specifications
| Manufacturer | Firestone Industrial Products |
|---|---|
| Part Number | W01-358-8729 |
| Part Type | Reversible Sleeve Air Spring |
| Bellows Number | 1T17BB-2 |
| OEM Alternate Number | W01-R88-8729 |
| Extended Height | 14.00″ |
| Compressed Height | 4.70″ |
| Top Plate Width | 10.38″ |
| Piston Width | 10.16″ |
| Weight | 13.00 lbs |
| Suspension Compatibility | Meritor Trailer Suspensions |
Cross References
This part replaces or is equivalent to the following part numbers:
- Firestone: W01-358-8729, W01-R88-8729
- Meritor: 202796, A2258F1410
- Goodyear: 1R13-130, 1R13-261
- ContiTech: 10 10.5AV-12 P 513, 10 10B-13 S 513
- Triangle: AS-8568
- Automann: AB1DK28C-8617
- Sampa: SP558729-KP
- Springride: 1R13261
- Paccar: RL87290
- HD Value: HDV8729
- Also known as: AS8729, HD8729
Applications
This reversible sleeve air spring is designed for Meritor trailer air-ride suspension systems found on:
- Heavy-duty trailers equipped with Meritor air-ride suspensions
- Dry van, flatbed, and refrigerated trailers using Meritor suspension configurations
Air springs must be matched by part number, not by truck make and model. Verify your current air spring part number and compare physical dimensions before ordering to confirm fitment.
