Continental ContiTech 77391 Air Spring Rolling Lobe 9 10P-18.5 P 195 – Heavy Duty Suspension
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Upgrade or replace a worn air suspension component with the Continental ContiTech 77391 Air Spring. This heavy-duty rolling-lobe air spring is engineered to absorb road shocks and vibrations while helping maintain proper suspension height and load support.
The 77391 uses the 9 10P-18.5 P 195 bellows configuration and is designed for demanding commercial vehicle and heavy-duty suspension applications. Continental's technical documentation lists a design height of approximately 14 inches, a maximum diameter of 12.60 inches, and a maximum load rating of 7,000 lb at 100 PSI.
A properly functioning air spring helps reduce suspension vibration, protect surrounding suspension components, and provide a smoother, more controlled ride. The Continental/ContiTech design is built for durability and consistent performance in demanding operating conditions.
| Specification | Details |
|---|---|
| Brand | Continental / ContiTech |
| Part Number | 77391 |
| Bellows Number | 9 10P-18.5 |
| Type | Rolling Lobe |
| Design Height | Approx. 14.0 in |
| Minimum Height | Approx. 7.4 in |
| Maximum Height | Approx. 23.3 in |
| Maximum Diameter | 12.60 in |
| Load @ 80 PSI | 5,600 lb |
| Load @ 100 PSI | 7,000 lb |
| Product Weight | Approx. 14.3 lb |
| Article Status | Normal |
| GTIN/EAN | 4054392155271 |
| Mounting Thread | 1/2-13 UNC |
| Air Port | 1/4-18 NPTF |
| Additional Ports | 2 × 3/4-16 UNF |
Continental's technical drawing confirms the dimensional and port information for the 77391 assembly.
The following cross-reference information is associated with Continental 77391:
Cross-reference numbers are provided for identification purposes. Always verify dimensions, mounting configuration, and application before installation.
The Continental 77391 is intended for heavy-duty air suspension applications using the 9 10P-18.5 bellows configuration. Exact vehicle and suspension fitment should be confirmed using the vehicle's suspension manufacturer, OEM number, or existing air spring specifications.
Continental recommends using its part-number lookup tools to identify applications by entering the Continental part number.
