| Product Line | Suspension |
| Category Name | Air Springs and Bags |
| Part Type | Rolling Lobe Air Spring |
| Alternate Part Name | Pneumatic Spring, Air Ride Spring, Rolling Lobe Air Spring, Suspension Air Bag, Air Bag Suspension, Reversible Sleeve Air Spring, Air Suspension Bag |
| OEM Part Number | 1R12-1049 |
| Application Type | Heavy Duty Trucks, Semi-Trucks |
| VMRS | 016-008-000 |
| Material | Fiber reinforced rubber bellows |
| Air Inlet Inside Thread | 1/4-NPT |
| Air Inlet Outside Thread | 3/4-16 UNF |
| Body Diameter | 12.60 in. |
| Bottom Plate Alignment | Parallel |
| Bottom Plate Diameter | 10 in. |
| Bottom Plate Stud | 1/2-13 UNC |
| Mounting Stud Configuration - Bottom | 1 |
| Mounting Stud Configuration - Top | 2 |
| Piston Height | 4.66 in. |
| Piston Material Type | Composite |
| Top Plate Diameter | 8.94 in |
| Top Plate Stud | 3/8-16 UNC |
| Air Spring Type | Rolling Lobe |
| Collapsed Length | 6.10 in. |
| Extended Length | 21.50 in. |
| Net Weight | 13 lb. |
| Cross References | 8468, 1R12-1049, 75561, 1R12-1049, 1R121049, 21132004, 21132005, 21244322, 21669088, 558468-KP, 558468KP, 75561, AS-81206, AS81206, W01-M58-8468, W01M588468 |
| Intended Application | - Designed for the rear suspension of 3rd Generation Volvo tractor trucks as a direct replacement for the Goodyear 1R12-1049 part number. This rolling lobe air spring absorbs road irregularities, maintains a constant ride height under heavy loads, and protects the chassis structure by reducing mechanical vibration.
- Always compare with your OEM part number prior to purchase to confirm full compatibility.
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