Meritor TSK.3.14B.57 — Cross Reference, Specification & Replacement
Meritor TSK.3.14B.57 is a Type 14 normal stroke air brake chamber diaphragm. Viaforta part VF-14N is a direct fabric-reinforced replacement, manufactured in Türkiye.
Also written as TSK314B57
| Size | 14N |
|---|---|
| Stroke type | Normal Stroke |
| Material | Fabric-reinforced rubber compound, made in Türkiye |
| Fitment | Direct fit for Type 14 service brake chambers |
| Viaforta part no. | VF-14N |
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?
Meritor TSK.3.14B.57 identifies the diaphragm fitted inside a Type 14 normal stroke service brake chamber. Type 14 refers to the effective area of the diaphragm — 14 square inches — which is what determines the output force the chamber produces at a given air pressure. The normal stroke designation refers to the travel available: standard-travel service brake chambers. 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?
Meritor builds air brake systems rather than vehicles, so TSK.3.14B.57 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 Alexander Dennis as 6593611, by Casals as 4229 and by ST-Templin as 02.130.7117.210.
Equivalent part numbers
The same diaphragm is catalogued under the following numbers by other manufacturers. Any of these can be replaced by Viaforta VF-14N.
| Brand | OEM number |
|---|---|
| Meritor | TSK.3.14B.57Exact match |
| WABCO | 897 121 610 4 |
| WABCO | 897 121 720 4 |
| Mercedes-Benz | 000 431 31 28 |
| Alexander Dennis | 6593611 |
| Casals | 4229 |
| DAF | 1506347 |
| DT Spare Parts | 4.80918 |
| febi bilstein | 06889 |
| PE Automotive | 016.243-00A |
| PE Automotive | 076.410-10A |
| Sampa | 096.2774 |
| SBP | 05-DMT14 |
| ST-Templin | 02.130.7117.210 |
Vehicle applications
This diaphragm is catalogued for the vehicles below. Source: Diesel Technic, Sampa.
11 vehicles
| Make | Model | Years |
|---|---|---|
| Mercedes-Benz | 616 | — |
| Mercedes-Benz | 625 | — |
| Mercedes-Benz | 650 | — |
| Mercedes-Benz | 651 | — |
| Mercedes-Benz | 652 | — |
| Mercedes-Benz | 653 | — |
| Mercedes-Benz | 658 | — |
| Mercedes-Benz | Bus O 300 | — |
| Mercedes-Benz | MK Series | 1987-2005 |
| Mercedes-Benz | NG Series | 1973-1998 |
| Mercedes-Benz | SK Series | 1987-1996 |
WABCO manufacture air brake systems rather than vehicles — their numbers are catalogue references used across multiple vehicle makes.
These lists come from published aftermarket catalogues, not from the vehicle manufacturers. Confirm the Type marking and the OEM number stamped on your brake chamber before ordering — send us the number and we will confirm the match within 24 hours. Why this check matters
Viaforta replacement
Viaforta VF-14N 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-14N.
Type 14 Brake Chamber Diaphragm, Normal Stroke · VF-14N →
Different number?
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Looking for Meritor TSK.3.14B.57?
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.