The ConCar AVX13 V-belt with an outer length (La) of 1,525 mm is designed for drives where this exact profile and length are specified. Its 13 × 10 mm cross-section transmits the rotary motion via suitable pulleys and can drive auxiliary components depending on the vehicle or machine design.
The open-flanked, toothed underside enhances flexibility as it rotates over the pulleys. The belt is made of a rubber compound with reinforced polyester/glass fiber tensile members. It is heat- and oil-resistant as well as antistatic. Depending on the drive system, this type of belt can be used to operate an alternator, cooling fan, water pump, or compressor. The manufacturer's specifications for the specific belt drive always take precedence.
The additional reference lengths Lw = 1,507 mm and Li = 1,462 mm simplify selection when the old belt marking uses a different length specification. These three length specifications describe different measurement references for the same belt: La is the outer length, Lw the effective length, and Li the inner length.
Before purchasing a new belt, compare the markings on your existing belt with the specifications provided by the vehicle or machine manufacturer. Also, check that the pulleys are clean, aligned, and free of sharp edges. Adjust the tension according to the manufacturer's instructions: too little tension can cause slippage, while too much tension puts unnecessary strain on the bearings and belt.
AVX13 is compared to XPA in the ConCar profile assignment. For alternative brands such as Gates, Optibelt, Continental, or Megadyne, the profile, reference length, and approval for the specific drive system must match; the brand name alone does not guarantee a suitable replacement.
Which length is crucial? Compare the specification AVX13 1.525 La with the labeling of the previous belt and the manufacturer's documentation. Pay attention to whether it uses La, Lw, or Li.
Until installation, the belt should be stored without tension, in a dry place, and protected from direct heat and sunlight. Do not kink or twist it. A ConCar V-belt in the profile and length specified above is supplied.