TOPRAN 408 393 Belt Tensioner, V-Ribbed Belt

Compatible with MERCEDES-BENZ C-CLASS (W204) , MERCEDES-BENZ C-CLASS T-Model (S204) , MERCEDES-BENZ E-CLASS (W212) Show more info
Ensures proper tension for the V-ribbed belt, critical for accessory drive system function. Designed for reliable performance and longevity.
30.14 EUR
inc. VAT 21%
In stock 3
Delivery 1 day (23.03.2026)
PN 408393
Make TOPRAN

This TOPRAN belt tensioner, part number 408 393, is engineered to maintain the optimal tension of your vehicle's V-ribbed belt. Proper belt tension is essential for the efficient operation of various engine accessories, including the alternator, power steering pump, and air conditioning compressor. A worn or improperly tensioned belt can lead to reduced performance of these accessories, premature belt wear, and potentially cause system failures. This tensioner is designed to provide consistent and accurate tension throughout its service life, ensuring smooth operation and preventing issues associated with slack or overly tight belts. Crafted with durable materials, the TOPRAN 408 393 is built to withstand the demanding conditions of the engine bay, offering a reliable solution for your V-ribbed belt system. Installation should be performed by a qualified technician to ensure correct fitment and function.

  • Maintains optimal V-ribbed belt tension
  • Ensures efficient accessory drive system operation
  • Designed for reliable and consistent performance
  • Durable construction for engine bay conditions
  • Helps prevent premature belt wear
  • Critical for alternator, power steering, and A/C function
Outer diameter [mm]
+65
Width [mm]
26
Assembly/Roller
Check the tensioner pulley
Additional article/Additional info 2
without grooves
Additional article/Additional info 2
with protection
Roller material
Plastic
Roller material
GFK (Glass Fiber Reinforced Plastic)
Housing material
Aluminum
  • MERCEDES-BENZ
    • C-CLASS (W204)
      • C 180 CDI (204.000) (88kW/120PS)
      • C 200 CDI (204.001) (100kW/136PS)
      • C 250 CDI 4-matic (204.082) (150kW/204PS)
      • C 250 CDI (204.003) (150kW/204PS)
      • C 220 CDI (204.002) (125kW/170PS)
    • C-CLASS T-Model (S204)
      • C 200 CDI (204.201) (100kW/136PS)
      • C 250 CDI 4-matic (204.282) (150kW/204PS)
      • C 180 CDI (204.200) (88kW/120PS)
      • C 220 CDI (204.202) (125kW/170PS)
      • C 250 CDI (204.203) (150kW/204PS)
    • E-CLASS (W212)
      • E 250 CDI / BlueTEC 4-matic (212.082, 212.097) (150kW/204PS)
      • E 220 CDI / BlueTEC (212.001, 212.002) (125kW/170PS)
      • E 250 CDI / BlueTEC (212.003, 212.004) (150kW/204PS)
      • E 200 CDI / BlueTEC (212.005, 212.006) (100kW/136PS)
    • E-CLASS T-Model (S212)
      • E 250 CDI / BlueTEC 4-matic (212.282, 212.297) (150kW/204PS)
      • E 200 CDI / BlueTEC (212.205, 212.206) (100kW/136PS)
      • E 220 CDI / BlueTEC (212.202, 212.201) (125kW/170PS)
      • E 250 CDI / BlueTEC (212.203, 212.204) (150kW/204PS)
    • GLK-CLASS (X204)
      • 220 CDI (204.902) (125kW/170PS)
      • 220 CDI 4-matic (204.984, 204.997) (125kW/170PS)
      • 250 CDI 4-matic (204.982, 204.904) (150kW/204PS)
      • 200 CDI (204.901) (105kW/143PS)
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