DAYCO ATB2637 Timing Belt Tensioner Pulley

Compatible with AUDI A1 (8X1, 8XK) , AUDI A1 Sportback (8XA, 8XF) , VW UP! (121, 122, BL1, BL2, BL3, 123) Show more info
Ensures proper timing belt tension for optimal engine performance and longevity. Direct fit for specific DAYCO applications.
25.20 EUR
inc. VAT 21%
In stock 2
Delivery 1 day (14.05.2026)
PN ATB2637
Make DAYCO
EAN 8021787106770

The DAYCO ATB2637 Timing Belt Tensioner Pulley is engineered to maintain the correct tension on your vehicle's timing belt. Proper tension is crucial for synchronizing the engine's camshaft and crankshaft, preventing valve-to-piston interference and ensuring smooth operation. This pulley is designed as a direct replacement for the original component, ensuring a precise fit and reliable performance. By keeping the timing belt taut, it prevents slippage, which can lead to incorrect engine timing, reduced power, and potential engine damage. Regular inspection and replacement of the tensioner pulley, as part of a timing belt service, is recommended to avoid catastrophic engine failure. Crafted with durable materials, the ATB2637 is built to withstand the demanding conditions within the engine bay, including heat and stress. Its robust construction contributes to a longer service life, providing peace of mind for drivers. Trust DAYCO for quality components that keep your engine running efficiently and reliably.

  • Maintains optimal timing belt tension
  • Prevents belt slippage and ensures accurate engine timing
  • Designed for specific DAYCO applications
  • Durable construction for extended service life
  • Helps prevent valve-to-piston interference
  • Crucial for smooth engine operation
  • Direct fit replacement
Drive pulley-Ø [mm]
50,0
Height 1 [mm]
+250
Height 2 [mm]
50,0
Mass [kg]
0,3
  • AUDI
    • A1 (8X1, 8XK)
      • 1.4 TFSI (103kW/140PS)
      • 1.4 TFSI (92kW/125PS)
      • 1.4 TSI (110kW/150PS)
      • 1.0 TFSI (70kW/95PS)
      • 1.0 TFSI (60kW/82PS)
    • A1 Sportback (8XA, 8XF)
      • 1.4 TFSI (103kW/140PS)
      • 1.4 TFSI (92kW/125PS)
      • 1.4 TSI (110kW/150PS)
      • 1.0 TFSI (70kW/95PS)
      • 1.0 TFSI (60kW/82PS)
    • A3 Limousine (8VS, 8VM)
      • 1.4 TFSI (90kW/122PS)
      • 1.2 TFSI (77kW/105PS)
      • 1.4 TFSI (92kW/125PS)
      • 1.4 TFSI (103kW/140PS)
      • 1.2 TFSI (81kW/110PS)
      • 1.4 TSI (110kW/150PS)
      • 1.0 TFSI (85kW/115PS)
      • 30 TFSI (85kW/115PS)
    • A3 (8V1, 8VK)
      • 1.4 TFSI (90kW/122PS)
      • 1.4 TFSI (103kW/140PS)
      • 1.2 TFSI (77kW/105PS)
      • 1.2 TFSI (81kW/110PS)
      • 1.4 TFSI (92kW/125PS)
      • 1.4 TSI (110kW/150PS)
      • 1.0 TFSI (85kW/115PS)
    • A3 Sportback (8VA, 8VF)
      • 1.4 TFSI (90kW/122PS)
      • 1.4 TFSI (103kW/140PS)
      • 1.2 TFSI (77kW/105PS)
      • 1.4 TFSI g-tron (81kW/110PS)
      • 1.2 TFSI (81kW/110PS)
      • 1.4 TFSI (92kW/125PS)
      • 1.4 TSI (110kW/150PS)
      • 1.4 TFSI e-tron (150kW/204PS)
      • 1.0 TFSI (85kW/115PS)
      • 30 TFSI (85kW/116PS)
      • 40 e-tron (150kW/204PS)
    • Q3 (8UB, 8UG)
      • 1.4 TSI (110kW/150PS)
      • 1.4 TFSI (92kW/125PS)
    • A3 Kabriolets (8V7, 8VE)
      • 1.4 TFSI (103kW/140PS)
      • 1.4 TFSI (92kW/125PS)
      • 1.4 TSI (110kW/150PS)
      • 1.4 TFSI (85kW/115PS)
    • A4 B9 (8W2, 8WC)
      • 1.4 TFSI (110kW/150PS)
    • A4 B9 Avant (8W5, 8WD)
      • 1.4 TFSI (110kW/150PS)
    • Q2 (GAB, GAG)
      • 1.4 TFSI (110kW/150PS)
      • 1.0 TFSI (85kW/115PS)
      • 30 TFSI (85kW/116PS)
    • A5 (F53, F5P)
      • 1.4 TFSI (110kW/150PS)
    • A5 Sportback (F5A, F5F)
      • 1.4 TFSI (110kW/150PS)
    • A1 Sportback (GBA)
      • 30 TFSI (85kW/116PS)
      • 25 TFSI (70kW/95PS)
    • A1 City Carver (GBH)
      • 25 TFSI (70kW/95PS)
      • 30 TFSI (85kW/116PS)
    • A3 Sportback (8YA, 8YF)
      • 40 TFSIe (150kW/204PS)
      • 45 TFSIe (180kW/245PS)
      • 35 TFSi (110kW/150PS)
    • Q3 (F3B)
      • 45 TFSI e (180kW/245PS)
    • Q3 Sportback (F3N)
      • 45 TFSI e (180kW/245PS)
    • A3 Limousine (8YS, 8YM)
      • 35 TFSi (110kW/150PS)
  • VW
    • UP! (121, 122, BL1, BL2, BL3, 123)
      • 1.0 (44kW/60PS)
      • 1.0 (55kW/75PS)
      • 1.0 EcoFuel (50kW/68PS)
      • 1.0 TSI (66kW/90PS)
      • 1.0 GTI (85kW/115PS)
    • GOLF VI Kabriolets (517)
      • 1.2 TSI 16V (77kW/105PS)
      • 1.4 TSI (92kW/125PS)
      • 1.4 TSI (110kW/150PS)
    • GOLF VII Variant (BA5, BV5)
      • 1.4 TSI (103kW/140PS)
      • 1.4 TGI CNG (81kW/110PS)
      • 1.2 TSI (63kW/86PS)
      • 1.2 TSI (77kW/105PS)
      • 1.4 TSI (90kW/122PS)
      • 1.4 TSI MultiFuel (90kW/122PS)
      • 1.2 TSI (81kW/110PS)
      • 1.4 TSI (92kW/125PS)
      • 1.4 TSI (110kW/150PS)
      • 1.4 TSI MultiFuel (92kW/125PS)
      • 1.6 (81kW/110PS)
      • 1.0 TSI (85kW/115PS)
      • 1.0 TSI (81kW/110PS)
      • 1.0 TSI (63kW/86PS)
    • GOLF VII (5G1, BQ1, BE1, BE2)
      • 1.4 TGI CNG (81kW/110PS)
      • 1.2 TSI (63kW/86PS)
      • 1.4 TSI (103kW/140PS)
      • 1.2 TSI (77kW/105PS)
      • 1.4 TSI (90kW/122PS)
      • 1.4 TSI MultiFuel (90kW/122PS)
      • 1.2 TSI (81kW/110PS)
      • 1.4 TSI (92kW/125PS)
      • 1.4 TSI (110kW/150PS)
      • 1.4 GTE Hybrid (150kW/204PS)
      • 1.4 TSI MultiFuel (92kW/125PS)
      • 1.6 (81kW/110PS)
      • 1.0 TSI (85kW/115PS)
      • 1.0 TSI (81kW/110PS)
      • 1.0 TSI (63kW/86PS)
    • POLO V (6R1, 6C1)
      • 1.4 TSI (103kW/140PS)
      • 1.0 (44kW/60PS)
      • 1.0 (55kW/75PS)
      • 1.2 TSI (81kW/110PS)
      • 1.4 TSI (110kW/150PS)
      • 1.2 TSI 16V (66kW/90PS)
      • 1.6 (81kW/110PS)
      • 1.0 TSI (70kW/95PS)
      • 1.0 TSI (81kW/110PS)
      • 1.6 (66kW/90PS)
    • JETTA IV (162, 163, AV3, AV2)
      • 1.4 TSI Hybrid (125kW/170PS)
      • 1.4 TSI (92kW/125PS)
      • 1.4 TSI (110kW/150PS)
      • 1.2 TSI 16V (77kW/105PS)
    • GOLF SPORTSVAN VII (AM1, AN1)
      • 1.4 TSI (110kW/150PS)
      • 1.2 TSI (81kW/110PS)
      • 1.4 TSI (92kW/125PS)
      • 1.2 TSI (63kW/86PS)
      • 1.6 (81kW/110PS)
      • 1.4 TSI MultiFuel (92kW/125PS)
      • 1.0 TSI (85kW/115PS)
      • 1.0 TSI (63kW/86PS)
      • 1.0 TSI (81kW/110PS)
    • SCIROCCO III (137, 138)
      • 1.4 TSI (92kW/125PS)
      • 1.4 TSI (110kW/150PS)
    • PASSAT B8 (3G2, CB2)
      • 1.4 TSI (110kW/150PS)
      • 1.4 TSI (92kW/125PS)
      • 1.4 TSI 4motion (110kW/150PS)
      • 1.4 GTE Hybrid (160kW/218PS)
    • PASSAT B8 Variant (3G5, CB5)
      • 1.4 TSI (110kW/150PS)
      • 1.4 TSI (92kW/125PS)
      • 1.4 TSI 4motion (110kW/150PS)
      • 1.4 GTE Hybrid (160kW/218PS)
    • BEETLE (5C1, 5C2)
      • 1.4 TSI (110kW/150PS)
      • 1.2 TSI 16V (77kW/105PS)
    • BEETLE Kabriolets (5C7, 5C8)
      • 1.4 TSI (110kW/150PS)
      • 1.2 TSI 16V (77kW/105PS)
    • TOURAN (5T1)
      • 1.2 TSI (81kW/110PS)
      • 1.4 TSI (110kW/150PS)
      • 1.0 TSI (85kW/116PS)
    • TIGUAN (5N_)
      • 1.4 TSI (92kW/125PS)
      • 1.4 TSI (110kW/150PS)
    • CADDY IV Lielas ietilpības automobilis (SAB, SAJ)
      • 1.2 TSI (62kW/84PS)
      • 1.4 TGI CNG (81kW/110PS)
      • 1.4 TSI (92kW/125PS)
      • 1.0 TSI (75kW/102PS)
      • 1.6 SRE (81kW/110PS)
      • 1.4 TSI (96kW/131PS)
      • 1.0 TSI (62kW/84PS)
    • CADDY IV Furgons/minivens (SAA, SAH)
      • 1.2 TSI (62kW/84PS)
      • 1.4 TGI CNG (81kW/110PS)
      • 1.4 TSI (92kW/125PS)
      • 1.0 TSI (75kW/102PS)
      • 1.6 SRE (81kW/110PS)
      • 1.4 TSI (96kW/131PS)
    • CC B7 (358)
      • 1.4 TSI (110kW/150PS)
    • SHARAN (7N1, 7N2)
      • 1.4 TSI (110kW/150PS)
    • CADDY ALLTRACK IV Lielas ietilpības automobilis (SAB)
      • 1.0 TSI (75kW/102PS)
      • 1.2 TSI (62kW/84PS)
      • 1.4 TGI CNG (81kW/110PS)
      • 1.4 TSI (92kW/125PS)
      • 1.4 TSI (96kW/131PS)
      • 1.0 TSI (62kW/84PS)
    • CADDY ALLTRACK IV Furgons/minivens (SAA)
      • 1.0 TSI (75kW/102PS)
      • 1.2 TSI (62kW/84PS)
      • 1.4 TGI CNG (81kW/110PS)
      • 1.4 TSI (92kW/125PS)
      • 1.4 TSI (96kW/131PS)
    • LOAD UP! (121, 122, BL1, BL2)
      • 1.0 EcoFuel (50kW/68PS)
      • 1.0 (44kW/60PS)
      • 1.0 BlueMotion (55kW/75PS)
    • TIGUAN (AD1, AX1)
      • 1.4 TSI (92kW/125PS)
      • 1.4 TSI (110kW/150PS)
      • 1.4 TSI 4motion (110kW/150PS)
      • 1.4 eHybrid (180kW/245PS)
    • PASSAT ALLTRACK B8 Variant (3G5, CB5)
      • 1.4 TSI 4motion (110kW/150PS)
    • TIGUAN ALLSPACE (BW2, BJ2)
      • 1.4 TSI (110kW/150PS)
    • POLO VI (AW1, BZ1, AE1)
      • 1.0 (55kW/75PS)
      • 1.0 TSI (70kW/95PS)
      • 1.0 (48kW/65PS)
      • 1.0 TSI (85kW/116PS)
      • 1.0 TGI (66kW/90PS)
    • T-ROC (A11, D11)
      • 1.0 TSI (85kW/116PS)
    • T-CROSS (C11, D31)
      • 1.0 TSi (70kW/95PS)
      • 1.0 TSi (85kW/116PS)
    • T-ROC Kabriolets (AC7, AC8)
      • 1.0 TSI (85kW/116PS)
    • ARTEON (3H7, 3H8)
      • 1.4 eHybrid (160kW/218PS)
    • ARTEON SHOOTING BRAKE (3H9)
      • 1.4 eHybrid (160kW/218PS)
    • GOLF VIII (CD1, DA1)
      • 1.4 GTE Plug-in Hybrid (180kW/245PS)
      • 1.4 TSI (110kW/150PS)
      • 1.4 TSI eHybrid (150kW/204PS)
    • MULTIVAN T7 (STM, STN)
      • 1.4 eHybrid (160kW/218PS)
    • POLO Van V (6R1, 6C1)
      • 1.0 TSI (81kW/110PS)
  • SEAT
    • Mii (KF1, KE1)
      • 1.0 (44kW/60PS)
      • 1.0 (55kW/75PS)
      • 1.0 EcoFuel (50kW/68PS)
    • LEON ST (5F8)
      • 1.4 TSI (103kW/140PS)
      • 1.2 TSI (77kW/105PS)
      • 1.2 TSI (63kW/86PS)
      • 1.4 TSI (90kW/122PS)
      • 1.4 TGI (81kW/110PS)
      • 1.2 TSI (81kW/110PS)
      • 1.4 TSI (92kW/125PS)
      • 1.4 TSI (110kW/150PS)
      • 1.0 TSI (85kW/115PS)
      • 1.0 TSi (63kW/86PS)
    • LEON (5F1)
      • 1.4 TSI (90kW/122PS)
      • 1.2 TSI (63kW/86PS)
      • 1.2 TSI (77kW/105PS)
      • 1.4 TSI (103kW/140PS)
      • 1.4 TGI (81kW/110PS)
      • 1.2 TSI (81kW/110PS)
      • 1.4 TSI (92kW/125PS)
      • 1.4 TSI (110kW/150PS)
      • 1.0 TSI (85kW/115PS)
      • 1.0 TSi (63kW/86PS)
    • LEON SC (5F5)
      • 1.2 TSI (63kW/86PS)
      • 1.2 TSI (77kW/105PS)
      • 1.4 TSI (90kW/122PS)
      • 1.4 TSI (103kW/140PS)
      • 1.2 TSI (81kW/110PS)
      • 1.4 TSI (92kW/125PS)
      • 1.4 TSI (110kW/150PS)
      • 1.0 TSI (85kW/115PS)
    • IBIZA IV (6J5, 6P1)
      • 1.4 TSI (103kW/140PS)
      • 1.0 (55kW/75PS)
      • 1.2 TSI (66kW/90PS)
      • 1.0 TSI (81kW/110PS)
      • 1.0 TSI (70kW/95PS)
      • 1.2 TSI (81kW/110PS)
      • 1.4 TSI (110kW/150PS)
    • IBIZA IV SC (6J1, 6P5)
      • 1.4 TSI (103kW/140PS)
      • 1.0 (55kW/75PS)
      • 1.2 TSI (66kW/90PS)
      • 1.0 TSI (70kW/95PS)
      • 1.0 TSI (81kW/110PS)
      • 1.2 TSI (81kW/110PS)
      • 1.4 TSI (110kW/150PS)
    • IBIZA IV ST (6J8, 6P8)
      • 1.4 TSI (103kW/140PS)
      • 1.0 (55kW/75PS)
      • 1.2 TSI (66kW/90PS)
      • 1.0 TSI (70kW/95PS)
      • 1.0 TSI (81kW/110PS)
      • 1.2 TSI (81kW/110PS)
      • 1.4 TSI (110kW/150PS)
    • TOLEDO IV (KG3)
      • 1.2 TSI (66kW/90PS)
      • 1.2 TSI (81kW/110PS)
      • 1.4 TSI (92kW/125PS)
      • 1.0 TSI (70kW/95PS)
      • 1.0 TSI (81kW/110PS)
    • ALHAMBRA (710, 711)
      • 1.4 TSI (110kW/150PS)
    • ATECA (KH7, KHP)
      • 1.0 TSI (85kW/116PS)
      • 1.4 TSI (110kW/150PS)
      • 1.4 TSI 4Drive (110kW/150PS)
    • IBIZA V (KJ1, KJG)
      • 1.0 (55kW/75PS)
      • 1.0 TSI (70kW/95PS)
      • 1.0 TSI (85kW/116PS)
      • 1.0 (48kW/65PS)
      • 1.0 TGI (66kW/90PS)
    • ARONA (KJ7, KJP)
      • 1.0 TSI (70kW/95PS)
      • 1.0 TSI (85kW/116PS)
      • 1.0 TGi (66kW/90PS)
    • LEON (KL1, KLG)
      • 1.4 TSI e-Hybrid (150kW/204PS)
      • 1.6 SRE (81kW/110PS)
    • LEON Sportstourer (KL8, KLD)
      • 1.4 TSI e-Hybrid (150kW/204PS)
      • 1.6 SRE (81kW/110PS)
    • ALHAMBRA VAN (711)
      • TSi (110kW/150PS)
    • TARRACO (KN2)
      • 1.4 e-HYBRID (180kW/245PS)
  • SKODA
    • CITIGO (NF1)
      • 1.0 (44kW/60PS)
      • 1.0 (55kW/75PS)
      • 1.0 CNG (50kW/68PS)
    • OCTAVIA III (5E3, NL3, NR3)
      • 1.4 TSI (103kW/140PS)
      • 1.2 TSI (63kW/86PS)
      • 1.2 TSI (77kW/105PS)
      • 1.4 TSI G-TEC (81kW/110PS)
      • 1.6 (81kW/110PS)
      • 1.2 TSI (81kW/110PS)
      • 1.4 TSI (110kW/150PS)
      • 1.0 TSI (85kW/115PS)
    • OCTAVIA III Combi (5E5, 5E6)
      • 1.2 TSI (63kW/86PS)
      • 1.2 TSI (77kW/105PS)
      • 1.4 TSI (103kW/140PS)
      • 1.4 TSI G-TEC (81kW/110PS)
      • 1.6 SRE (81kW/110PS)
      • 1.2 TSI (81kW/110PS)
      • 1.4 TSI (110kW/150PS)
      • 1.0 TSI (85kW/115PS)
    • YETI (5L)
      • 1.6 (81kW/110PS)
      • 1.2 TSI (81kW/110PS)
      • 1.4 TSI (92kW/125PS)
      • 1.4 TSI 4x4 (110kW/150PS)
    • FABIA III (NJ3)
      • 1.0 (44kW/60PS)
      • 1.0 (55kW/75PS)
      • 1.2 TSI (66kW/90PS)
      • 1.2 TSI (81kW/110PS)
      • 1.6 (81kW/110PS)
      • 1.0 TSI (70kW/95PS)
      • 1.0 TSI (81kW/110PS)
      • 1.4 TSI R5 (92kW/125PS)
    • FABIA III Universālis (NJ5)
      • 1.0 (55kW/75PS)
      • 1.2 TSI (66kW/90PS)
      • 1.2 TSI (81kW/110PS)
      • 1.0 (44kW/60PS)
      • 1.6 (81kW/110PS)
      • 1.0 TSI (70kW/95PS)
      • 1.0 TSI (81kW/110PS)
    • SUPERB III (3V3)
      • 1.4 TSI (110kW/150PS)
      • 1.4 TSI (92kW/125PS)
      • 1.4 TSI 4x4 (110kW/150PS)
      • 1.4 TSI iV (160kW/218PS)
    • SUPERB III Universālis (3V5)
      • 1.4 TSI (92kW/125PS)
      • 1.4 TSI (110kW/150PS)
      • 1.4 TSI 4x4 (110kW/150PS)
      • 1.4 TSI iV (160kW/218PS)
    • RAPID (NH3, NK3, NK6)
      • 1.2 TSI (66kW/90PS)
      • 1.2 TSI (81kW/110PS)
      • 1.4 TSI (92kW/125PS)
      • 1.0 TSI (70kW/95PS)
      • 1.0 TSI (81kW/110PS)
    • RAPID Spaceback (NH1)
      • 1.2 TSI (66kW/90PS)
      • 1.2 TSI (81kW/110PS)
      • 1.4 TSI (92kW/125PS)
      • 1.0 TSI (70kW/95PS)
      • 1.0 TSI (81kW/110PS)
    • KODIAQ I (NS6, NS7, NV7)
      • 1.4 TSI (92kW/125PS)
      • 1.4 TSI 4x4 (110kW/150PS)
      • 1.4 TSI (110kW/150PS)
    • KAROQ (NU7, ND7)
      • 1.0 TSI (85kW/116PS)
      • 1.4 TSI (110kW/150PS)
    • SCALA (NW1)
      • 1.0 TSI (85kW/116PS)
      • 1.0 TSI (70kW/95PS)
      • 1.0 TGI CNG (66kW/90PS)
    • KAMIQ (NW4)
      • 1.0 TSI (70kW/95PS)
      • 1.0 TSI (85kW/116PS)
      • 1.0 TGI CNG (66kW/90PS)
    • OCTAVIA IV (NX3, NN3, PV3)
      • 1.4 TSI RS iV (180kW/245PS)
      • 1.4 TSI iV (150kW/204PS)
      • 1.4 TSI (110kW/150PS)
    • OCTAVIA IV Combi (NX5, PV5)
      • 1.4 TSI RS iV (180kW/245PS)
      • 1.4 TSI (110kW/150PS)
      • 1.4 TSI iV (150kW/204PS)
    • FABIA III Praktik (NJ5)
      • 1.0 (44kW/60PS)
      • 1.0 (55kW/75PS)
      • 1.2 TSI (66kW/90PS)
      • 1.2 TSI (81kW/110PS)
  • CUPRA
    • LEON (KL1, KU1, KUG)
      • 1.4 e-HYBRID (180kW/245PS)
      • 1.4 e-HYBRID (150kW/204PS)
    • LEON Sportstourer (KL8, KU8, KUD)
      • e-HYBRID (180kW/245PS)
      • 1.4 e-HYBRID (150kW/204PS)
    • FORMENTOR (KM7, KMP)
      • 1.4 e-Hybrid (150kW/204PS)
      • 1.4 e-Hybrid VZ (180kW/245PS)
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