Öhlins O-ring 40x3 NBR70 Low temp
02 · Data & docs

The facts.

Technical data
BrandÖhlins
Part Number00638-93
CategoryO-Rings
Inner Diameter40 mm
Cross Section3 mm
MaterialNBR 70
Country of OriginSweden
DescriptionThe whole story▼

O-ring 40x3 NBR70 Low temp, Öhlins part number 00638-93. Size is given as inner diameter and cross-section; a close size is not a match.

Key Features

  • Inner Diameter 40 mm
  • Material NBR 70
  • Öhlins part number 00638-93
  • Cross Section 3 mm
  • Original Öhlins service part

Function

The published figures are 40 mm, 3 mm, NBR 70. Measure the old part against them before ordering. Cross-section is as important as diameter: an O-ring that is too thin will not seal at pressure. Size is given as inner diameter and cross-section; a close size is not a match. Seal heads combine the oil seal, the dust seal and the bushing in one assembly.

Original Öhlins Part

The part number is the contract: it defines material, dimension and finish together. A damper that can be rebuilt is a damper that stays on the bike; that is the whole argument for original service parts. Ask us before ordering if you are unsure: a wrong part in a pressurised unit is an expensive lesson. Order by part number — descriptions repeat across sizes, numbers do not.

Getting the Number Right

The reliable route is the exploded drawing: find the position, read the number, order it — 00638-93 in this case. inner diameter 40 mm, cross section 3 mm, material NBR 70 is what distinguishes this number from its neighbours in the range. O-ring sizes are given as inner diameter and cross-section, and both have to match — a close size is not a match. Assembly grease matters — the wrong compound swells the seal and it fails early.

Fitting and Setup Service

Öhlins recommends that its units are serviced by an authorised centre. We are one: rebuild, revalve and setup all happen in our own workshop.

Specifications

  • Brand: Öhlins
  • Part Number: 00638-93
  • Category: O-Rings
  • Inner Diameter: 40 mm
  • Cross Section: 3 mm
  • Material: NBR 70
  • Country of Origin: Sweden
07 · Support

Questions, one topic at a time.

Estimate your shipping

Get the real shipping cost for this item to your address — the same rates as checkout.

Pick your countrySame rates as checkout

Choose a destination and hit Estimate — we fetch the live rates for this item.

How long does delivery take?

We’re based in Germany. Standard delivery goes by DHL and national postal services and takes about 2–5 days within Germany, 1–2 weeks within the EU and 2–6 weeks outside the EU. Need it sooner? Express delivery reaches most of the world within a few days — just choose it at checkout where available.

How much does shipping cost?

Your exact shipping cost is calculated by destination and weight and shown at checkout before you pay — no hidden fees. Express delivery is selectable at checkout where available.

Do you ship to my country?

Yes, we ship to over 130 countries. Prices, taxes and delivery times for your destination are calculated automatically at checkout.

Will I have to pay customs or import duties?

Within the EU, no — our prices already include all duties and EU VAT. For deliveries outside the EU (e.g. Switzerland, the UK or the USA), your order may be subject to import duties and taxes set by your country. These are collected by the carrier when your parcel arrives, aren’t included in our prices, and are outside our control.

How can I track my order?

As soon as your parcel ships we email you a tracking link, so you can follow it all the way to your door.

What if an item is out of stock?

On out-of-stock items you can request a delivery time or leave your email to be notified the moment it returns — just use the notification box on the product.

Didn’t find your answer?

Our team will personally help you choose the right gear or part — around 24h for a reply.