Öhlins Piston 12/36 sintered
02 · Data & docs

The facts.

Technical data
BrandÖhlins
Part Number03377-42
CategoryPistons
Dimension A12 mm
Dimension B36 mm
Country of OriginSweden
DescriptionThe whole story▼

Piston 12/36 sintered, Öhlins part number 03377-42. The piston carries the shim stacks and meters the oil; its port layout is what makes an Öhlins damper behave the way it does.

Key Features

  • Öhlins part number 03377-42
  • Original Öhlins service part
  • Dimension A 12 mm
  • Dimension B 36 mm

What It Is

This one measures 12 mm, 36 mm, and those figures are what separate it from the neighbouring numbers. Jets meter fixed bleed flow and are sized in tenths of a millimetre. A worn piston band lets oil past the outside of the piston, which shows up as damping that has gone soft. The seat face has to be flat enough for the first shim to seal against it.

Original Öhlins Part

Rebuilding to specification only works if the parts are to specification — that starts here. Suspension is one of the few areas where the original part is genuinely the cheaper decision. Service parts are ordered per piece unless stated otherwise. Tell us the damper's model designation and year and we will match the number for you.

How to Be Sure It Fits

Order under 03377-42. Where several sizes share a description, only the number separates them. Öhlins states dimension a 12 mm, dimension b 36 mm for this number, and those figures are the deciding ones. A scored piston face means oil bypasses the shims entirely. Rebuilding a piston means keeping the shim order, because the stack is the tuning.

Fitting and Setup Service

We are an authorised Öhlins service centre, so you do not have to source the tools and the nitrogen: send us the damper and we rebuild it with the correct parts and the correct setting.

Specifications

  • Brand: Öhlins
  • Part Number: 03377-42
  • Category: Pistons
  • Dimension A: 12 mm
  • Dimension B: 36 mm
  • Country of Origin: Sweden
07 · Support

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08 · Paddock

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