Stellox 85-15009-SX — Cross Reference, Specification & Replacement
Stellox 85-15009-SX is a Type 9 normal stroke air brake chamber diaphragm. Viaforta part VF-9N is a direct fabric-reinforced replacement, manufactured in Türkiye.
Also written as 8515009SX

| Size | 9N |
|---|---|
| Stroke type | Normal Stroke |
| Material | Fabric-reinforced rubber compound, made in Türkiye |
| Fitment | Direct fit for Type 9 service brake chambers |
| Viaforta part no. | VF-9N |
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?
Stellox 85-15009-SX identifies the diaphragm fitted inside a Type 9 normal stroke service brake chamber. Type 9 refers to the effective area of the diaphragm — 9 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?
85-15009-SX is Stellox's own catalogue reference, not a vehicle manufacturer's. Aftermarket suppliers assign their own numbers to the same part, which is why the number printed on a box rarely matches the one in the service manual.
The same diaphragm is catalogued by DAF as 1257928, by Bendix as 234433 and by BPW as 02.220.30.10.0.
Equivalent part numbers
The same diaphragm is catalogued under the following numbers by other manufacturers. Any of these can be replaced by Viaforta VF-9N.
| Brand | OEM number |
|---|---|
| Stellox | 85-15009-SXExact match |
| WABCO | 897 120 495 4 |
| Bendix | 234433 |
| IVECO | 8123746 |
| Scania | 203670 |
| Volvo | 353314 |
| DAF | 1257928 |
| Air Fren | 02.1609 |
| Auger | 52576 |
| BPW | 02.220.30.10.0 |
| Corteco | 19135409 |
| DAF | 709116 |
| DPH | 69212 |
| DPH | 69213 |
| DT Spare Parts | 1.18030 |
| febi bilstein | 07094 |
| IVECO | 9986596 |
| Knorr-Bremse | 234433K |
| Mercedes-Benz | 000 144 0028 |
| PE Automotive | 076.417-10A |
| Renault | 50 01 832 026 |
| Renault | 50 21 170 272 |
| Sampa | 095.101 |
| Sampa | 095.101-01 |
| SBP | 05-DMT9 |
| Scania | 189644 |
| Scania | 1912344 |
| Sem Lastik | 15871 |
| ST-Templin | 02.130.7117.010 |
| SWAG | 99 90 7094 |
| Triscan | 8550 10017 |
| Trucktec Automotive | 98.04.009 |
| WABCO | 897 120 492 4 |
Vehicle applications
This diaphragm is catalogued for the vehicles below. Source: Diesel Technic.
177 vehicles
| Make | Model | Years |
|---|---|---|
| DAF | 45 | 1996-2000 |
| DAF | 55 | 1996-2000 |
| DAF | 65 | 1993-1998 |
| DAF | 65 CF | 1998-2001 |
| DAF | 75 | 1992-1998 |
| DAF | 75 CF | 1998-2001 |
| DAF | 85 | 1992-1998 |
| DAF | 85 CF | 1998-2001 |
| DAF | 95 | 1987-1997 |
| DAF | 95 XF | 1997-2003 |
| DAF | CF 65 | 2001-2006 |
| DAF | CF 65II | 2001-2006 |
| DAF | CF 65III | 2001-2006 |
| DAF | CF 65IV | 2006-2013 |
| DAF | CF 75 | 2001-2006 |
| DAF | CF 75II | 2001-2006 |
| DAF | CF 75IV | 2006-2013 |
| DAF | CF 85 | 2001-2006 |
| DAF | CF 85II | 2001-2006 |
| DAF | CF 85IV | 2006-2013 |
| DAF | CF E6 | 2013-2017 |
| DAF | CF F7 | 2017- |
| DAF | DB 250 | 1995-2002 |
| DAF | DBR 250 | 1996-2003 |
| DAF | F 1000 | 1955-1970 |
| DAF | F 1100 | 1955-1970 |
| DAF | F 1200 | 1955-1970 |
| DAF | F 1300 | 1955-1970 |
| DAF | F 1400 | 1955-1970 |
| DAF | F 1500 | 1955-1970 |
| DAF | F 1600 | 1955-1970 |
| DAF | F 1700 | 1955-1970 |
| DAF | F 1800 | 1955-1970 |
| DAF | F 1900 | 1955-1970 |
| DAF | F 2000 | 1970-1980 |
| DAF | F 2100 | 1970-1980 |
| DAF | F 2200 | 1970-1980 |
| DAF | F 2300 | 1970-1980 |
| DAF | F 2500 | 1970-1980 |
| DAF | F 2600 | 1970-1980 |
| DAF | F 2700 | 1970-1980 |
| DAF | F 2800 | 1973-1995 |
| DAF | F 2900 | 1973-1995 |
| DAF | F 3100 | 1973-1995 |
| DAF | F 3200 | 1973-1995 |
| DAF | F 3300 | 1973-1995 |
| DAF | F 3600 | 1973-1995 |
| DAF | F 500 | 1975- |
| DAF | F 600 | 1975- |
| DAF | F 800 | 1975- |
| DAF | F 900 | 1975- |
| DAF | LF 45 | 2001-2006 |
| DAF | LF 45II | 2001-2006 |
| DAF | LF 45IV | 2006-2013 |
| DAF | LF 55 | 2001-2006 |
| DAF | LF 55IV | 2006-2013 |
| DAF | LF E6 | 2013- |
| DAF | MB 200 | 2000-2006 |
| DAF | MB 230 | 2002-2008 |
| DAF | MB 2300 | 2004-2010 |
| DAF | N 2800 | 1980 |
| DAF | N 3300 | 1982-1990 |
| DAF | SB 120 | 1999-2006 |
| DAF | SB 180 | 2000-2005 |
| DAF | SB 200 | 1995-2002 |
| DAF | SB 2000 | 2002-2007 |
| DAF | SB 201 | 2002-2005 |
| DAF | SB 210 | 2003-2006 |
| DAF | SB 220 | 2003-2007 |
| DAF | SB 225 | 2004-2008 |
| DAF | SB 230 | 2005-2010 |
| DAF | SB 2300 | 2006-2012 |
| DAF | SB 2305 | 2007-2013 |
| DAF | SB 235 | 2008-2014 |
| DAF | SB 250 | 2009-2015 |
| DAF | SB 260 | 2010-2016 |
| DAF | SB 300 | 1998-2003 |
| DAF | SB 3000 | 2003-2008 |
| DAF | SB 400 | 2004-2009 |
| DAF | SB 4000 | 2005-2010 |
| DAF | SBG 220 | 2006-2011 |
| DAF | SBR 230 | 2007-2012 |
| DAF | SBR 3000 | 2008-2013 |
| DAF | SBR 3015 | 2009-2014 |
| DAF | XD G1 | 2022- |
| DAF | XF 105 | 2005- |
| DAF | XF 95 | 2002-2006 |
| DAF | XF 95II | 2002-2006 |
| DAF | XF E6 | 2012- |
| DAF | XF F7 | 2017- |
| DAF | XF G2 | 2021- |
| DAF | XG G3 | 2021- |
| Mack | CS | — |
| Mack | MS | — |
| MAN | TGA | 2000- |
| MAN | TGL | 2004- |
| MAN | TGM | 2004- |
| MAN | TGS | 2006- |
| MAN | TGX | 2006- |
| Mercedes-Benz | Atego 1 | 1998-2004 |
| Mercedes-Benz | Atego 2 | 2004-2010 |
| Mercedes-Benz | Atego 3 | 2013- |
| Mercedes-Benz | Econic 1 | — |
| Mercedes-Benz | Econic 2 | — |
| Renault Trucks | AE | — |
| Renault Trucks | AE Magnum | — |
| Renault Trucks | C | — |
| Renault Trucks | CBH | — |
| Renault Trucks | CE | — |
| Renault Trucks | CLM | — |
| Renault Trucks | CLR | — |
| Renault Trucks | D | — |
| Renault Trucks | G | — |
| Renault Trucks | K | — |
| Renault Trucks | Kerax | — |
| Renault Trucks | Kerax DXi 11 | — |
| Renault Trucks | Kerax DXi 13 | — |
| Renault Trucks | M | — |
| Renault Trucks | Magnum DXi 12 | — |
| Renault Trucks | Magnum DXi 13 | — |
| Renault Trucks | Magnum E-Tech | — |
| Renault Trucks | Major | — |
| Renault Trucks | Manager | — |
| Renault Trucks | Maxity | — |
| Renault Trucks | Maxter | — |
| Renault Trucks | ME | — |
| Renault Trucks | Midlum | — |
| Renault Trucks | Midlum II | — |
| Renault Trucks | Premium | — |
| Renault Trucks | Premium II DXi 7 | — |
| Renault Trucks | Premium II PR | — |
| Renault Trucks | Premium II TR | — |
| Renault Trucks | Premium PR | — |
| Renault Trucks | Premium TR | — |
| Renault Trucks | Puncher | — |
| Renault Trucks | R | — |
| Renault Trucks | S | — |
| Renault Trucks | SE | — |
| Renault Trucks | T | — |
| Scania | CL 94 | 1994-2010 |
| Scania | CN 94 | 1994-2010 |
| Scania | F | 2004- |
| Scania | F 114 | 1994-2010 |
| Scania | F 94 | 1994-2010 |
| Scania | G | 2003- |
| Scania | K | 2004- |
| Scania | K 114 | 1994-2010 |
| Scania | K 124 | 1994-2010 |
| Scania | K 94 | 1994-2010 |
| Scania | L | 2016- |
| Scania | L 94 | 1994-2010 |
| Scania | N | 2004- |
| Scania | N 94 | 1994-2010 |
| Scania | P | 2003- |
| Scania | R | 2003- |
| Scania | S | 2016- |
| Scania | T | 2003-2018 |
| Sisu | Sisu / Renault | — |
| Volvo | B11R | 2011- |
| Volvo | B13R | 2009- |
| Volvo | B9L | 2005-2014 |
| Volvo | B9R | 2006-2013 |
| Volvo | B9S | 1999-2011 |
| Volvo | B9TL | 2002-2018 |
| Volvo | F10 | 1976-1995 |
| Volvo | F12 | 1976-1995 |
| Volvo | F16 | 1987-1995 |
| Volvo | FE | 2006-2013 |
| Volvo | FE (3) | 2013- |
| Volvo | FL | 2006-2013 |
| Volvo | FL (3) | 2013- |
| Volvo | FL10 | 1985-1998 |
| Volvo | FL12 | 1995-1998 |
| Volvo | FL6 | 2000-2006 |
| Volvo | FM10 | 1998-2001 |
| Volvo | N10 | 1973-1989 |
| Volvo | N12 | 1973-1989 |
WABCO, Bendix 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-9N 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-9N.
Type 9 Brake Chamber Diaphragm, Normal Stroke · VF-9N →
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Looking for Stellox 85-15009-SX?
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.
Also catalogued as
- WABCO897 120 495 4
- Bendix234433
- IVECO8123746
- Scania203670
- Volvo353314
- DAF1257928
- Air Fren02.1609
- Auger52576
- BPW02.220.30.10.0
- Corteco19135409
- DAF709116
- DPH69212
- DPH69213
- DT Spare Parts1.18030
- febi bilstein07094
- IVECO9986596
- Knorr-Bremse234433K
- Mercedes-Benz000 144 0028
- PE Automotive076.417-10A
- Renault50 01 832 026
- Renault50 21 170 272
- Sampa095.101
- Sampa095.101-01
- SBP05-DMT9
- Scania189644
- Scania1912344
- Sem Lastik15871
- ST-Templin02.130.7117.010
- SWAG99 90 7094
- Triscan8550 10017
- Trucktec Automotive98.04.009
- WABCO897 120 492 4