Coupling damper (also referred to as a shock absorber or gas strut) for AL-KO coupling model 90S, 90S/1, 90S/2 & 90S/3 made from 1985 to current year.
Damper number 359987. (Older dampers may have an extension which is about 100mm long, this was later replaced by an eye incorperated into the shaft.)
Fits couplings with Eti Numbers -
The Eti number is made up of 6 digits beginning 811, this can be found on the details stamped on the green oval ID plate fitted on top of the coupling body (On a caravan this may be under the cowling).