WABCO 8971218464 — Cross Reference, Specification & Replacement
WABCO 8971218464 is a Type 27 long stroke air brake chamber diaphragm. Viaforta part VF-27LS is a direct fabric-reinforced replacement, manufactured in Türkiye.
| Size | 27LS |
|---|---|
| Stroke type | Long Stroke |
| Material | Fabric-reinforced rubber compound, made in Türkiye |
| Fitment | Direct fit for Type 27 service brake chambers |
| Viaforta part no. | VF-27LS |
Dimensional data is not published. Manufacturing tolerances vary between production batches, and a fixed published figure that a shipment later disagrees with is worse than no figure at all. Fitment is confirmed by Type and stroke, and by the OEM number stamped on your chamber.
Order quantities and lead times are confirmed per order — request a quote.
What is this part?
WABCO 8971218464 identifies the diaphragm fitted inside a Type 27 long stroke service brake chamber. Type 27 refers to the effective area of the diaphragm — 27 square inches — which is what determines the output force the chamber produces at a given air pressure. The long stroke designation refers to the travel available: extended-travel chambers with a deeper diaphragm profile. A diaphragm of the wrong Type or the wrong stroke will either not seal correctly or will not deliver full travel, so both figures have to match.
What does this number tell you?
WABCO builds air brake systems rather than vehicles, so 8971218464 follows the chamber onto every make that is fitted with it. That is why one number here maps to several vehicle catalogues at once, and why a vehicle manufacturer's number is the narrower way to search.
The same diaphragm is catalogued by Mercedes-Benz as 0004314228.
The vehicle list below is derived from the other manufacturer numbers that share this part, not from a WABCO application table.
Equivalent part numbers
The same diaphragm is catalogued under the following numbers by other manufacturers. Any of these can be replaced by Viaforta VF-27LS.
| Brand | OEM number |
|---|---|
| WABCO | 8971218464Exact match |
| Mercedes-Benz | 0004314228 |
Vehicle applications
This part cross-references original equipment numbers from the following manufacturers, across their heavy commercial vehicle ranges.
Mercedes-Benz
heavy commercial vehicles
Platforms: Actros · Arocs · Antos · Axor · Atego · Econic
WABCO manufacture air brake systems rather than vehicles — their numbers are catalogue references used across multiple vehicle makes.
Application data is indicative and derived from OEM cross-references. Confirm the Type marking and the OEM number stamped on your brake chamber before ordering. If you send us the number, we will confirm the match within 24 hours. Why this check matters
Viaforta replacement
Viaforta VF-27LS is manufactured in Türkiye from fabric-reinforced rubber, blended to a formulation of our own. It is supplied in Viaforta packaging and is available in trial quantities as well as full container loads.
Full product page
Specifications, complete cross-reference table, applications and FAQ for Viaforta VF-27LS.
Type 27 Brake Chamber Diaphragm, Long Stroke · VF-27LS →
Different number?
Search the full cross-reference database — 496 numbers across 52 manufacturers.
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Looking for WABCO 8971218464?
Send us the quantity you need. You will get a price in USD, Incoterms and a lead time within 24 hours — and up to 10 free samples if you want to test the part first.
Free samples up to 10 pieces are available on request; you cover the shipping only.
Prices are quoted in USD, EXW or FOB Istanbul. Freight is arranged separately. Payment by bank transfer or letter of credit against a proforma invoice.