2.7L 30v - S4

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Manufacturers

2.7L 30v - S4

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SUPERTECH exhaust valve stem seals Audi 2.7 T 30V

VS-VBM6E-12 (170425)

New product

Set of 12 exhaust valve stem seals for the Audi 2.7 T 30V V6, 6 mm stem.

  • Brand: SUPERTECH
  • Engines: AGB, AJK, APB, ARE, ASJ, AZA, AZB, AZR, BEL, BES
  • Material: Viton (FKM)

More details

19,02 € tax incl.

  • Audi engines concerned

    These seals fit the 6 mm stem exhaust valves of the Audi 2.7 T twin-turbo 30-valve V6, from 230 to 380 hp: AGB, AZB and APB in the S4 B5, ASJ and AZR in the RS4 B5, AJK, AZA, ARE, BES, APB and BEL in the A4 B5 2.7 Turbo, A6 C5 and allroad C5, from 1997 to 2005.

    Each cylinder has two exhaust valves, 12 on the engine, and three inlet valves. The original seal caps the guide and meters the oil that lubricates the stem; Audi uses the same part number 036 109 675 A for all 30 valves of the V6.

    SUPERTECH exhaust valve stem seals

    On the 2.7 T the exhaust gases head straight for the two turbos, and the 12 seals on this side live in intense heat. Hardened or split, they let oil slide down the stems into the chambers, where it burns: the level drops, the tailpipes puff blue, carbon sticks to valves and ports. The seal must still keep a thin oil path for stem and guide.

    SUPERTECH moulds them in Viton (FKM), a high temperature compound picked for long life against hot exhaust valves; for SUPERTECH this material suits them to the highest temperatures, namely 204 °C (400 °F) continuous. Each seal caps an 8.8 mm OD guide and grips a 6 mm stem. The set of 12 fits the full exhaust of both V6 heads; the inlet, with 18 valves, takes a polyacrylate (ACM) seal.

    Stem seal technical specifications

    Part numberBrandPositionMaterialStem ØGuide ØSeal outside Ø
    VS-VBM6E-12SUPERTECHExhaustViton (FKM)6 mm8.8 mm12.2 mm

    Stem seal installation

    PartOriginalReinforced
    Exhaust stem sealVAG 036 109 675 AReplaced by this set
    Inlet stem seal6 mm stemVS-VBM6I-18
    Valves6 mm stemInlet / Exhaust

    Technical guide

    The brand offered

    SUPERTECHSUPERTECH, based in San Jose (California), has made competition valves and springs, guides and seals for over 30 years. New parts are first modelled with finite elements, then developed with known tuners on drag strips, rally stages and circuits.

    Why two different materials?

    On this V6, the 18 inlet and 12 exhaust seals are dimensionally identical, while the 2.7 T exhaust valves run far hotter in service. That is why SUPERTECH fits the tougher Viton (FKM) VS-VBM6-E there and keeps the polyacrylate (ACM) VS-VBM6-I for the inlet.

    When valve stem seals must be replaced

    • Oil dropping, blue tailpipe smoke
    • 2.7 T heads off for a full rebuild
    • Valve guides changed
    • Uprated valves or springs planned

    Vehicle compatibility

    ModelEngine codePowerYears
    A4 B5 (8D2) S4 quattroAGB / AZB265 hp1997-2001
    A4 B5 (8D2) S4 quattroAPB254 hp1997-1998
    A4 B5 Avant (8D5) S4 quattroAGB / AZB265 hp1997-2001
    A4 B5 Avant (8D5) S4 quattroAPB252 hp2001-2002
    A4 B5 Avant (8D5) RS4 quattroASJ / AZR380 hp2000-2001
    A4 B5 (8D2) 2.7 Turbo quattroAJK230 hp1999-2000
    A6 C5 (4B2, 4B4) 2.7 T, 2.7 T quattroAJK / AZA230 hp1997-2005
    A6 C5 (4B2, 4B4) 2.7 T quattroARE / BES250 hp2001-2005
    A6 C5 (4B2, 4B4) 2.7, 2.7 quattroAPB / BEL254 hp2001-2004
    A6 C5 (4B2, 4B4) 2.7 quattroBEL265 hp2003-2004
    A6 C5 Avant (4B5, 4B6) 2.7 T, 2.7 T quattroAJK / AZA230 hp1997-2005
    A6 C5 Avant (4B5, 4B6) 2.7 T quattroARE / BES250 hp2001-2005
    allroad C5 (4BH) 2.7 T quattroARE / BES250 hp2000-2005
    allroad C5 (4BH) 2.7 quattroAPB / BEL254 hp2000-2005

    OEM part number (VAG stem seal): 036 109 675 A (former number 036 109 675; 30 pieces per engine, inlet and exhaust)

    Important: this set of 12 covers the exhaust only; the 2.7 T inlet has 18 valves and needs a set of 18 polyacrylate seals.

    Remember the inlet valve stem seals

    In the same head job, the 2.7 T inlet deserves attention: its 18 valves work under boost. We offer uprated valves for them:

    Audi 2.7 T 30V inlet valves →