OE 021145299B — Belt Tensioner for Mercedes-Benz

Standard minimum order is 10 pieces per part number. Mixed orders that combine 021145299B with other transmission & drivetrain references are welcome — that is how most clients fill an LCL or FCL container without over-stocking a single line.

Watch for noise on cold start, vibration under load, warning lights, fluid seepage or uneven operation. Once any of those appears the belt tensioner should be inspected, and reference 021145299B replaced if it measures outside specification.

Aftermarket belt tensioner comes from tooling houses that hold the original drawings or licensed equivalents. KingMay sources from vetted factories and inspects each batch; the manufacturer name is available on request where your market requires origin documentation.

The Related OE References table above lists the alternates we see most often in trade inquiries. Cross-references work because the engineering envelope is shared across the transmission & drivetrain family — always confirm dimensions and connector layout before you swap.

Build-year coverage is listed row by row in the Applications table above. Where several generations share one number, the newer rows usually carry a revised suffix — compare the last four characters before buying, since a suffix change often means a different connector or bracket.

Bulk pricing is tiered: 10 pieces, 50 pieces and full-carton quantities each carry a different unit rate. Piece price also moves with packing format and whether your own brand is printed on the carton, so tell us the landed quantity you are planning.