Powerdown Shock Absorber for R.O.R. and Weweler Trailer - FL9000/FL1100/FLX12000Powerdown trailer shock absorbers for SAF, Weweler and ROR suspension systems are engineered for Australian B-double, road train and semi-trailer air suspension applications. Trailer shock absorbers are often overlooked compared to truck shocks, but worn trailer shocks cause air spring instability, uneven load distribution, tyre cupping and trailer sway - all of which affect safety and operating costs. Engineered for SAF, Weweler and ROR trailer air suspension geometry Controls air spring movement under full Australian B-double and road train payload Large bore with high-capacity fluid for sustained highway operation under maximum load 360-degree arc-welded mounts rated for trailer suspension high-cycle fatigue loading Direct OEM-equivalent replacement for straightforward fitment with existing hardware Replacement indicators: Trailer bounce at highway speed, air spring bottoming out, oil on shock body, tyre cupping, or uneven wear across trailer axles. Replace as a set across each axle for consistent load distribution.Vehicle fitment: R.O.R. and Weweler Trailer - FL9000/FL1100/FLX12000Position: Front/RearOE cross-reference: 212.24.331B | 212.24.745 | 90-2368SP2Part number: P684 | Vendor: Powerdown | Australian designed for heavy commercial vehicles | Technical enquiries: 02 4949 0000 | [email protected]