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  1. Home
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  3. Engine Timing
  4. Tensioner and Idler Pulley
  5. 531 0399 20
531 0399 20
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531 0399 20

Article number: S531 0399 20 FOCUSON ENGINE's product is cross-referenced with this one.

The belt tensioner pulley helps maintain proper tension in the engine's belts, ensuring they operate smoothly and effectively, reducing wear and improving performance.

Tailored for wholesale and OEM needs, our 531 0399 20 support OE number cross-reference. Please consult our sales team for MOQ and procurement details.

  • Designed to meet international certifications such as ISO, CE, and DOT, ensuring compatibility and safety across global markets.

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531 0399 20
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  • Details
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Details

Width [mm]

31

Outer diameter [mm]

72

Observe service information

Kits List

  • Not Found Timing Belt Kit with Water Pump 530 0345 30 Details
  • Not Found Timing Belt Kit 530 0345 10 Details
  • Not Found Timing Belt Kit with Water Pump 530 0344 30 Details
  • Not Found Timing Belt Kit 530 0344 10 Details

OEM Numbers

  • 06B 109 243
  • 06B109243

  • 06B 109 243
  • 06B109243

  • 06B 109 243
  • 06B109243

  • 06B 109 243
  • 06B109243

  • 8646 29125
  • 864629125

Vehicle Fitment

Make Model Type Engine Code Capacity Fuel Type Year Power
AUDI A3 (8L1) 1.8 AGN,APG 1781 CCM / 1.8 L Petrol 1996-09-01
2003-05-01
92 KW / 125 PS
AUDI A3 (8L1) 1.8 T AGU,AQA,ARZ,AUM 1781 CCM / 1.8 L Petrol 1996-12-01
2003-05-01
110 KW / 150 PS
VW PASSAT B5 (3B2) 1.8 ADR,APT,ARG 1781 CCM / 1.8 L Petrol 1996-10-01
2000-11-01
92 KW / 125 PS
VW PASSAT B5 (3B2) 1.8 T AEB,ANB,APU,ATW,AUG 1781 CCM / 1.8 L Petrol 1996-10-01
2000-11-01
110 KW / 150 PS
SKODA OCTAVIA I (1U2) 1.8 AGN 1781 CCM / 1.8 L Petrol 1996-09-01
2000-07-01
92 KW / 125 PS
VW GOLF IV (1J1) 1.8 AGN 1781 CCM / 1.8 L Petrol 1997-08-01
2005-06-01
92 KW / 125 PS
VW GOLF IV (1J1) 1.8 T AGU,AUM,ARZ,AWW,AWD,AQA 1781 CCM / 1.8 L Petrol 1997-08-01
2005-06-01
110 KW / 150 PS
AUDI A6 C5 (4B2) 1.8 AJP,AQE,ARH 1781 CCM / 1.8 L Petrol 1997-07-01
2005-01-01
92 KW / 125 PS
AUDI A6 C5 Avant (4B5) 1.8 AJP,AQE,ARH 1781 CCM / 1.8 L Petrol 1997-12-01
2005-01-01
92 KW / 125 PS
VW SHARAN (7M8, 7M9, 7M6) 1.8 T 20V AJH,AWC 1781 CCM / 1.8 L Petrol 1997-09-01
2010-03-01
110 KW / 150 PS
SEAT ALHAMBRA (7V8, 7V9) 1.8 T 20V AWC,AJH 1781 CCM / 1.8 L Petrol 1997-10-01
2010-03-01
110 KW / 150 PS
SKODA OCTAVIA I Combi (1U5) 1.8 20V AGN 1781 CCM / 1.8 L Petrol 1998-07-01
2000-07-01
92 KW / 125 PS
VW GOLF IV (1J1) 1.8 4motion AGN 1781 CCM / 1.8 L Petrol 1998-05-01
2005-06-01
92 KW / 125 PS
AUDI TT (8N3) 1.8 T AJQ,APP,AUQ,AWP,ATC 1781 CCM / 1.8 L Petrol 1998-10-01
2006-06-01
132 KW / 180 PS
AUDI TT (8N3) 1.8 T quattro AJQ,ARY,AUQ,ATC 1781 CCM / 1.8 L Petrol 1998-10-01
2006-06-01
132 KW / 180 PS
AUDI TT (8N3) 1.8 T quattro APX,BAM,BEA 1781 CCM / 1.8 L Petrol 1998-10-01
2006-06-01
165 KW / 224 PS
SEAT TOLEDO II (1M2) 1.8 20V AGN,APG 1781 CCM / 1.8 L Petrol 1998-10-01
2004-07-01
92 KW / 125 PS
VW BORA I (1J2) 1.8 AGN,BAF 1781 CCM / 1.8 L Petrol 1998-10-01
2005-05-01
92 KW / 125 PS
SKODA OCTAVIA I Combi (1U5) 1.8 T AGU,ARZ,ARX,AUM 1781 CCM / 1.8 L Petrol 1998-07-01
2010-12-01
110 KW / 150 PS
AUDI A3 (8L1) 1.8 T quattro AJQ,ARY 1781 CCM / 1.8 L Petrol 1998-10-01
2003-05-01
132 KW / 180 PS
AUDI A3 (8L1) S3 quattro APY,AMK,AUL 1781 CCM / 1.8 L Petrol 1999-03-01
2002-04-01
154 KW / 210 PS
AUDI A3 (8L1) 1.8 T quattro AGU,AQA,ARX 1781 CCM / 1.8 L Petrol 1996-12-01
2003-05-01
110 KW / 150 PS
AUDI A3 (8L1) 1.8 T AJQ,APP,ARY,AUQ 1781 CCM / 1.8 L Petrol 1998-12-01
2003-05-01
132 KW / 180 PS
AUDI TT Roadster (8N9) 1.8 T AJQ,APP,AUQ,AWP,ATC 1781 CCM / 1.8 L Petrol 1999-10-01
2006-06-01
132 KW / 180 PS
AUDI TT Roadster (8N9) 1.8 T quattro AJQ,ARY,AUQ 1781 CCM / 1.8 L Petrol 2000-02-01
2006-06-01
132 KW / 180 PS
AUDI TT Roadster (8N9) 1.8 T quattro APX,BAM,BEA 1781 CCM / 1.8 L Petrol 1999-10-01
2006-06-01
165 KW / 224 PS
SKODA OCTAVIA I (1U2) 1.8 T AGU,ARZ,ARX,AUM 1781 CCM / 1.8 L Petrol 1997-08-01
2010-12-01
110 KW / 150 PS
VW (FAW) BORA (1J2, 9D2) R Turbo 1.8 BTH 1781 CCM / 1.8 L Petrol 2005-08-01
2006-12-01
130 KW / 177 PS
VW (FAW) JETTA (1G2, 1G3) 1.6 BJT 1595 CCM / 1.6 L Petrol 2004-03-01
2013-12-01
70 KW / 95 PS
VW BORA I (1J2) 1.8 4motion AGN 1781 CCM / 1.8 L Petrol 1999-02-01
2005-05-01
92 KW / 125 PS
SEAT LEON (1M1) 1.8 20V AGN,APG 1781 CCM / 1.8 L Petrol 1999-11-01
2006-06-01
92 KW / 125 PS
VW NEW BEETLE (9C1, 1C1) 1.8 T AGU,APH,AVC,AWU,AWV,BKF 1781 CCM / 1.8 L Petrol 1999-10-01
2010-09-01
110 KW / 150 PS
SEAT LEON (1M1) 1.8 20V T APP,AUQ 1781 CCM / 1.8 L Petrol 1999-11-01
2006-06-01
132 KW / 180 PS
SEAT LEON (1M1) 1.8 20V T 4 ARY,AJQ 1781 CCM / 1.8 L Petrol 1999-11-01
2006-06-01
132 KW / 180 PS
VW BORA Variant (1J6) 1.8 4motion AGN 1781 CCM / 1.8 L Petrol 1999-05-01
2005-05-01
92 KW / 125 PS
VW GOLF IV Variant (1J5) 1.8 4motion AGN 1781 CCM / 1.8 L Petrol 1999-05-01
2006-06-01
92 KW / 125 PS
VW BORA I (1J2) 1.8 T AGU,ARX,AUM,AWW,AWD 1781 CCM / 1.8 L Petrol 2000-05-01
2005-05-01
110 KW / 150 PS
VW BORA Variant (1J6) 1.8 T AGU,ARX,AUM,AWW,AWD 1781 CCM / 1.8 L Petrol 2000-05-01
2005-05-01
110 KW / 150 PS
VW GOLF IV (1J1) 1.8 T GTI AUQ,AWP,BEK 1781 CCM / 1.8 L Petrol 2001-08-01
2005-06-01
132 KW / 180 PS
VW GOLF IV Variant (1J5) 1.8 T AGU,AUM,ARZ 1781 CCM / 1.8 L Petrol 2000-05-01
2006-06-01
110 KW / 150 PS
SEAT TOLEDO II (1M2) 1.8 20VT APP,AUQ,ARY 1781 CCM / 1.8 L Petrol 2000-09-01
2004-07-01
132 KW / 180 PS
AUDI TT Roadster (8N9) 1.8 T quattro AWP 1781 CCM / 1.8 L Petrol 1999-10-01
2002-08-01
134 KW / 182 PS
VW (FAW) BORA (1J2, 9D2) 1.8 BAF 1781 CCM / 1.8 L Petrol 2001-12-01
2006-12-01
92 KW / 125 PS
VW (FAW) BORA HS Hatchback (9D1) 1.8 BAF 1781 CCM / 1.8 L Petrol 2006-10-01
2008-12-01
92 KW / 125 PS
VW (FAW) GOLF IV (1J1) 1.8 BAF 1781 CCM / 1.8 L Petrol 2003-07-01
2009-07-01
92 KW / 125 PS
VW (SVW) PASSAT B5 (9F8) 1.8 ANQ 1781 CCM / 1.8 L Petrol 2000-04-01
2003-02-01
92 KW / 125 PS
VW (FAW) BORA GP Saloon (9D2) 1.8 BAF 1781 CCM / 1.8 L Petrol 2006-07-01
2008-12-01
92 KW / 125 PS
VW (FAW) GOLF IV (1J1) 1.6 AWB 1595 CCM / 1.6 L Petrol 2003-08-01
2005-01-01
78 KW / 106 PS
VW (FAW) JETTA (1G2, 1G3) 1.6 20V AHP 1595 CCM / 1.6 L Petrol 1999-01-01
2003-01-01
74 KW / 101 PS

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531 0399 20

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Overview

Car models AUDI A3 (8L1); VW PASSAT B5 (3B2); SKODA OCTAVIA I (1U2); VW GOLF IV (1J1); AUDI A6 C5 (4B2); AUDI A6 C5 Avant (4B5); VW SHARAN (7M8, 7M9, 7M6); SEAT ALHAMBRA (7V8, 7V9); SKODA OCTAVIA I Combi (1U5); AUDI TT (8N3); SEAT TOLEDO II (1M2); VW BORA I (1J2); AUDI TT Roadster (8N9); VW (FAW) BORA (1J2, 9D2); VW (FAW) JETTA (1G2, 1G3); SEAT LEON (1M1); VW NEW BEETLE (9C1, 1C1); VW BORA Variant (1J6); VW GOLF IV Variant (1J5); VW (FAW) BORA HS Hatchback (9D1); VW (FAW) GOLF IV (1J1); VW (SVW) PASSAT B5 (9F8); VW (FAW) BORA GP Saloon (9D2)
Engines AGN,APG; AGU,AQA,ARZ,AUM; ADR,APT,ARG; AEB,ANB,APU,ATW,AUG; AGN; AGU,AUM,ARZ,AWW,AWD,AQA; AJP,AQE,ARH; AJH,AWC; AWC,AJH; AJQ,APP,AUQ,AWP,ATC; AJQ,ARY,AUQ,ATC; APX,BAM,BEA; AGN,BAF; AGU,ARZ,ARX,AUM; AJQ,ARY; APY,AMK,AUL; AGU,AQA,ARX; AJQ,APP,ARY,AUQ; AJQ,ARY,AUQ; BTH; BJT; AGU,APH,AVC,AWU,AWV,BKF; APP,AUQ; ARY,AJQ; AGU,ARX,AUM,AWW,AWD; AUQ,AWP,BEK; AGU,AUM,ARZ; APP,AUQ,ARY; AWP; BAF; ANQ; AWB; AHP
Engine power (horsepower) 95-224 HP
Power (kilowatts) 70-165 KW
Year of manufacture 1996-2013

FAQs

It maintains the correct tension on the serpentine belt, ensuring proper alignment and preventing belt slippage.

Symptoms include belt chirping noises, misalignment issues, and excessive wear on the belt.

It can lead to reduced engine efficiency, overheating, and potential failure of driven components.

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  • Packaging Design
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