Öhlins Reservoir piston 36The facts.
| Brand | Öhlins |
|---|---|
| Part Number | 00305-03 |
| Category | Pistons |
| Country of Origin | Sweden |
DescriptionThe whole story▼
Reservoir piston 36, Öhlins part number 00305-03. The seat face has to be flat enough for the first shim to seal against it.
Key Features
- Öhlins part number 00305-03
- Original Öhlins service part
Where It Sits
This position is identified by its number rather than by a dimension. Piston bands are consumables — they wear against the bore and lose their seal gradually. Replacing a piston is a workshop job because the shim stack has to be rebuilt in the correct order. Twin-tube pistons have separate paths for compression and rebound, which is the whole point of the design.
Original Öhlins Part
This is an original Öhlins part, not an aftermarket equivalent — the tolerances are the ones the unit was assembled to. Rebuilding to specification only works if the parts are to specification — that starts here. Öhlins parts are unit-specific: a close dimension is not a substitute. For a full rebuild, the seal kit plus the wear parts is usually the sensible order.
Identifying the Right Part
Öhlins identifies this position by the number 00305-03 in the exploded view for the unit it belongs to. Öhlins does not publish a dimension here — go by the number and the exploded view. The piston carries the shim stacks and meters the oil through its ports. Twin-tube pistons have separate paths for compression and rebound, which is the whole point of the design.
Fitting and Setup Service
A damper rebuild is workshop work: it needs the unit dismantled, the shim stack rebuilt in the correct order and the gas charge reset. We are an authorised Öhlins service centre and do exactly that in house — send us the unit or ask us to fit the part with your order.
Specifications
- Brand: Öhlins
- Part Number: 00305-03
- Category: Pistons
- Country of Origin: Sweden
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