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Pollen Filter KNECHT LAK 31
Filter, interior air KNECHT LAK 31. Fits 34 car models (AUDI, SEAT, SKODA +1), 1984–2010. Replaces 8 OE numbers.

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Specification. From the manufacturer's data.
- Brand
- KNECHT
- Category
- Filter, interior air
- Length [mm]
- 284.0 mm
- Width [mm]
- 206 mm
- Height [mm]
- 24.0 mm
- Packaging length [cm]
- 21.5 cm
- Packaging width [cm]
- 3.00 cm
- Packaging height [cm]
- 29.00 cm
- Net Weight [g]
- 152 g
- Basic version (Art. No.)
- LA 31
- Highly efficient version with active carbon (Art. No.)
- LAO 31
- MPN
- LAK 31
- SKU
- 0034-LAK 31
- GTIN / EAN
- 4009026504918
- What's included
- 1x Filter, interior air
OE numbers. The originals this part replaces.
Numbers the vehicle makers and other brands use for this part. Only a confirmed OE number links to its own page; other brands' equivalents are under “Equivalent products”.
- AUDI / CUPRA / VW1H0091800
- AUDI / CUPRA / VW1H0091800SE
- AUDI / CUPRA / VW1H0819648A
- AUDI / CUPRA / VW1HO091800
- AUDI / CUPRA / VW3B1819640
- AUDI / CUPRA / VW3B1819640A
- AUDI / CUPRA / VW3B1819644A
- AUDI / CUPRA / VW8L0091800
Where this part fits
Original-fit position for OE 3B1819640. The red ring marks where this part installs on the vehicle.

Equivalent products. They fit in the same place.
7 available · 33 numbers In stock from £11.99 to £32.99.
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All 33 cross-reference numbers
Numbers other makers give for this part. They are aftermarket numbers, not the vehicle maker's OE numbers; a linked number is one we sell.
- A.L. FILTER ALC6421/1
- ACDelco PUK1034E
- BIG FILTER GB9803/C
- BLUE PRINT ADBP250050
- BOSCH 1987431312
- BOSCH 1987432312
- BOSCH R2312
- CLEAN FILTERS NC2074CA
- COMLINE EKF112A
- COOPERS ACE048
- CoopersFiaam PCK8072
- CoopersFiaam PCK8078
- CORTECO 21651955
- CORTECO CC1027
- DENSO DCF225K
- FILTRON K1006A
- FIRST LINE BFC1100
- FRAM CFA8893
- HENGST FILTER E900LC
- HIFI FILTER SC 5000 CA
- MAGNETI MARELLI 350203063220
- MAGNETI MARELLI BCF322C
- MANN-FILTER CUK2882
- MGA FAH5022
- MICRONAIR MC544
- ORIONE S111/1
- PURFLUX AHC104
- QUINTON HAZELL QFC0168
- QUINTON HAZELL WP6813
- UFI 5426300
- VALEO 698686
- VEMO 10311013
- WIX FILTERS WP6813
Compatible cars. AUDI, SEAT, SKODA +1, 34 models.
Matched from the manufacturer's data. Production years 1984–2010.
Filter, interior air for AUDIFilter, interior air for SEATFilter, interior air for SKODAFilter, interior air for VW
| Model | Engines | Years |
|---|---|---|
| AUDI3 models | ||
| AUDI A3 (8L1) | 1.6, 1.8, 1.8 T, 1.8 T quattro, 1.9 TDI | 1996–2006 |
| AUDI TT (8N3) | 1.8 T, 1.8 T quattro | 1998–2007 |
| AUDI TT Roadster (8N9) | 1.8 T, 1.8 T quattro | 1999–2007 |
| SEAT8 models | ||
| SEAT AROSA (6H1) | 1.0, 1.4, 1.4 16V, 1.4 TDI, 1.7 SDI | 1997–2004 |
| SEAT CORDOBA (6K1, 6K2) | 1.0 i, 1.4 16V, 1.4 i, 1.4 i 16V, 1.6 i, 1.8 i, 1.8 i 16V, 1.8 T 20V Cupra, 1.9 D, 1.9 SDI, 1.9 TD, 1.9 TDI, 2.0 i, 2.0 i 16V | 1993–2002 |
| SEAT CORDOBA (6L2) | 1.6 | 2002–2009 |
SEAT5 more models
| Model | Engines | Years |
|---|---|---|
| SEAT CORDOBA Vario (6K5) | 1.4 16V, 1.4 i, 1.6 i, 1.9 SDI, 1.9 TDI | 1996–2002 |
| SEAT IBIZA II (6K1) | 1.0, 1.0 16V, 1.0 i, 1.3 i, 1.4, 1.4 16V, 1.4 i, 1.4 i 16V, 1.6 i, 1.8 i, 1.8 i 16V, 1.8 T 20V Cupra, 1.8 T 20V Cupra R, 1.9 D, 1.9 SDI, 1.9 TD, 1.9 TDI, 2.0 i, 2.0 i 16V | 1993–2002 |
| SEAT INCA (6K9) | 1.4 16V, 1.4 i, 1.6 i, 1.7 D, 1.9 D, 1.9 SDI, 1.9 TDI | 1995–2003 |
| SEAT LEON (1M1) | 1.4 16V, 1.6, 1.6 16 V, 1.8 20V, 1.8 20V T, 1.8 20V T 4, 1.8 T Cupra R, 1.9 SDI, 1.9 TDI, 1.9 TDI Syncro, 2.8, 2.8 Cupra 4 | 1999–2006 |
| SEAT TOLEDO II (1M2) | 1.4 16V, 1.6, 1.6 16V, 1.8 20V, 1.8 20VT, 1.9 TDI, 2.3 V5, 2.3 V5 20V | 1998–2006 |
SKODA3 models
| Model | Engines | Years |
|---|---|---|
| SKODA OCTAVIA I (1U2) | 1.4, 1.4 16V, 1.6, 1.8, 1.8 T, 1.8 T 4x4, 1.9 SDI, 1.9 TDI, 2.0, RS 1.8 T | 1996–2010 |
| SKODA OCTAVIA I Combi (1U5) | 1.4 16V, 1.6, 1.8 20V, 1.8 T, 1.8 T 4x4, 1.9 SDI, 1.9 TDI, 1.9 TDI 4x4, 2.0, 2.0 4x4, RS 1.8 T | 1998–2010 |
| SKODA SUPERB I (3U4) | 1.8 T, 1.9 TDI, 2.0, 2.0 TDI, 2.5 TDI, 2.8 V6 | 2001–2008 |
VW20 models
| Model | Engines | Years |
|---|---|---|
| VW CADDY Box Body/MPV (6K9, 9E7, 9E9) | 1.9 D | 2002–2009 |
| VW CADDY II Box Body/MPV (9K9A) | 1.4, 1.7 SDI, 1.9 D, 1.9 SDI, 1.9 TDI, 60 1.4, 75 1.6 | 1995–2004 |
| VW CADDY II MPV (9K9B) | 1.4, 1.4 16V, 1.6, 1.7 SDI, 1.9 D, 1.9 SDI, 1.9 TDI | 1995–2004 |
| VW CADDY II Pickup (9U7) | 1.6, 1.9 D | 1996–2000 |
| VW CITI GOLF | 1.3, 1.4, 1.6, 1.8 | 1984–2010 |
| VW GOLF III (1H1) | 1.3, 1.4, 1.6, 1.8, 1.8 Syncro (1HX1), 1.9 D, 1.9 SDI, 1.9 TD, GTD, 1.9 TDI, 1.9 TDI Syncro (1HX1), 2.0, 2.0 GL, 2.0 GTI 16V, 2.0 Syncro (1HX1), 2.8 VR6, 2.9 VR6 Syncro (1HX1), Citystromer | 1989–2000 |
| VW GOLF III Cabriolet (1E7) | 1.6, 1.8, 1.9 TDI, 2.0 | 1993–1998 |
| VW GOLF III Van (1H1) | 1.6 | 1991–1997 |
| VW GOLF III Variant (1H5) | 1.4, 1.6, 1.8, 1.8 Syncro, 1.9 D, 1.9 SDI, 1.9 TD, 1.9 TDI, 1.9 TDI Syncro, 2.0, 2.0 Syncro, 2.9 VR6 Syncro | 1993–1999 |
| VW GOLF IV (1J1) | 1.6 | 1997–2008 |
| VW GOLF IV Cabriolet (1E7) | 1.6, 1.8, 1.9 TDI, 2.0 | 1998–2002 |
| VW LUPO I (6X1, 6E1) | 1.0, 1.2 TDI 3L, 1.4, 1.4 16V, 1.4 FSI, 1.4 TDI, 1.6 GTI, 1.7 SDI | 1998–2005 |
| VW PASSAT B5.5 (3B3) | 1.6, 1.8 T, 1.8 T 20V, 1.8 T 4motion, 1.9 TDI, 1.9 TDI 4motion, 2.0, 2.0 4motion, 2.0 TDI, 2.3 V5, 2.3 V5 4motion, 2.5 TDI, 2.5 TDI 4motion, 2.8 4motion, 4.0 W8 4motion | 2000–2005 |
| VW PASSAT B5.5 Variant (3B6) | 1.6, 1.8 T, 1.8 T 20V, 1.9 TDI, 1.9 TDI 4motion, 2.0, 2.0 4motion, 2.0 TDI, 2.3 VR5, 2.3 VR5 4motion, 2.5 TDI, 2.5 TDI 4motion, 2.8 4motion, 4.0 W8 4motion | 2000–2005 |
| VW POLO (6N2) | 1.0, 1.4, 1.4 16V, 1.4 TDI, 1.6 16V GTI, 1.7 SDI, 1.9 D, 1.9 SDI | 1999–2001 |
| VW POLO III (6N1) | 1.7 SDI, 100 1.4 16V, 120 1.6 16V GTI, 45 1.0, 50 1.0, 55 1.3, 55 1.4, 60 1.4, 60 1.7 SDI, 64 1.9 D, 64 1.9 SDI, 75 1.6, 75 1.6 4motion | 1994–1999 |
| VW POLO III CLASSIC (6V2) | 1.4, 1.6, 1.9 SDI, 1.9 TDI, 100 1.6, 110 1.9 TDI, 2.0, 54 1.4, 57 1.7 SDI, 60 1.4, 64 1,9 D, 64 1.9 SDI, 68 1.9 SDI, 75 1.4 16V, 75 1.6, 90 1.8, 90 1.9 TDI | 1995–2009 |
| VW POLO Van Hatchback Van (6N1) | 1.0 | 1994–1999 |
| VW POLO Variant (6V5) | 1.4, 1.4 16V, 1.6, 1.7 SDI, 1.8, 1.9 SDI, 1.9 TDI | 1997–2001 |
| VW VENTO (1H2) | 1.4, 1.6, 1.8, 1.9 D, 1.9 SDI, 1.9 TD, 1.9 TDI, 2.0, 2.8 VR6 | 1991–2000 |
Always verify compatibility with your vehicle before ordering.
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Common original equipment numbers linked to replacement-part pages.
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2-year warranty against manufacturing defects on all parts, counted from delivery. 14-day money-back guarantee if the part doesn't fit your vehicle. Delivery terms
We ship from the EU to 201 countries. Deliveries within the EU carry no customs charges; outside the UK and the EU, the destination country may charge import duties and taxes, paid on delivery. Delivery times and prices by country
Delivery times to EU countries (working days)
Austria 4–7, Belgium 4–7, Bulgaria 5–9, Croatia 5–9, Cyprus 4–19, Czechia 4–7, Denmark 4–8, Estonia 3–4, Finland 6–10, France 5–8, Germany 3–5, Greece 6–10, Hungary 4–7, Ireland 5–9, Italy 5–9, Latvia 2–3, Lithuania 2–3, Luxembourg 4–7, Malta 4–9, Netherlands 4–7, Poland 3–6, Portugal 6–10, Romania 4–8, Slovakia 4–7, Slovenia 4–8, Spain 6–9, Sweden 5–10