Description
The World American WA01-8050C is a heavy-duty rolling-lobe air spring for trailer rear suspension systems. It is an aftermarket replacement for Firestone W01-358-8050, Goodyear 1R14-039, and ContiTech AS8050. The spring uses an 11.31-inch top plate with 2 mounting studs at 7.75-inch center-to-center, and an 11.5-inch bottom plate with 4 holes at 2.25-inch center-to-center on a 45° alignment.
Specifications
| Manufacturer | World American |
|---|---|
| Part Number | WA01-8050C |
| Part Type | Air Spring (Rolling Lobe) |
| Design Height | 11.0 in |
| Min / Max Height | 5.4 in / 18.5 in |
| Maximum Diameter | 14.7 in |
| Load Rating @ 80 psi | 8,080 lb |
| Load Rating @ 100 psi | 10,100 lb |
| Top Plate | 11.31 in dia, 2 holes, 7.75 in C-to-C |
| Bottom Plate | 11.5 in dia, 4 holes, 2.25 in C-to-C, 45° alignment |
| Natural Frequency | 82 Hz |
Cross References
This part replaces or is equivalent to the following part numbers:
- Firestone: W01-358-8050, 8050
- Goodyear: 1R14-039, 1R14-055, 1R14-083
- ContiTech (Continental): AS8050, 11 10.5C-16 A320, 64254
- Meritor: FS8050, RFS8050, 201680
- Hendrickson: S4771, B4771, HS300, 3651413
- Navistar: 1685174C1
- Volvo: 3130498
- Paccar Parts: AS80500, MAF8050
- Reyco Granning: 23631-01
- Triangle Air Springs: AS-8320, 8320
- Dayton Parts: 352-8050
- Euclid: E-FS8050
- Watson & Chalin: AS-0039
- Holland: 57008050
- HDValue: HDV8050
- Also known as: AB1DK28A-8050, 1003588050C, 10-98050, B-12514-013, FLT1R14039, TR8050
Applications
This air spring fits trailer rear suspensions originally equipped with Firestone W01-358-8050 or any of the cross-referenced part numbers above. Typical platforms include:
- Hendrickson HT300 / HT310 trailer suspensions
- Reyco Granning trailer air-ride suspensions
- Holland / SAF-Holland trailer air-ride suspensions
- Watson & Chalin trailer air-ride suspensions
Verify your existing air spring part number, plate dimensions, and stud pattern against the specifications above before ordering.









