TOPRAN 400 138 Belt Tensioner, V-Ribbed Belt

Compatible with MERCEDES-BENZ 190 (W201) , MERCEDES-BENZ 124 Sedans (W124) , MERCEDES-BENZ 124 T-Model (S124) Show more info
Ensures optimal tension for your V-ribbed belt, maintaining proper accessory function. Designed for reliable performance and durability.
41.16 EUR
inc. VAT 21%
In stock 12
Delivery 1 day (15.05.2026)
PN 400 138
Make TOPRAN

This TOPRAN belt tensioner, part number 400 138, is engineered to maintain the correct tension on your V-ribbed belt. Proper belt tension is crucial for the efficient operation of various engine accessories such as the alternator, power steering pump, and air conditioning compressor. A worn or improperly tensioned belt can lead to reduced performance of these systems, premature belt wear, and potential noise. This tensioner is designed to provide consistent and reliable tension, ensuring your belt operates within its optimal parameters. Crafted with quality materials, the TOPRAN 400 138 aims to deliver long-lasting service and withstand the demanding conditions within the engine bay. It is a direct replacement for the original component, facilitating a straightforward installation process.

  • Maintains optimal V-ribbed belt tension
  • Ensures proper function of engine accessories
  • Durable construction for longevity
  • Designed for reliable performance
  • Direct replacement part
  • Part number: 400 138
  • Brand: TOPRAN
Outer diameter [mm]
79,8
Width [mm]
26
Assembly/Roller
Check the tensioner pulley
Additional article/Additional info 2
without grooves
Roller material
Plastic
Roller material
GFK (Glass Fiber Reinforced Plastic)
recommended repair extension
V-belt/Ribbed V-belt
  • MERCEDES-BENZ
    • 190 (W201)
      • E 1.8 (201.018) (80kW/109PS)
      • E 2.0 (201.024) (85kW/116PS)
      • 2.0 (201.023) (77kW/105PS)
      • E 2.3 (201.028) (100kW/136PS)
    • 124 Sedans (W124)
      • 200 (124.020) (80kW/109PS)
      • 200 E (124.021) (90kW/122PS)
      • 230 E (124.023) (100kW/136PS)
    • 124 T-Model (S124)
      • 200 T (124.080) (80kW/109PS)
      • 200 TE (124.081) (87kW/118PS)
      • 230 TE (124.083) (100kW/136PS)
    • 124 Coupe (C124)
      • 230 CE (124.043) (100kW/136PS)
0 Updated