OE 1403503406 — Control Arm for Mercedes-Benz

Start from the code cast or printed on the part you are removing — that is the authoritative source. If it is illegible, use the Applications table on the closest suspension, steering & brake reference and narrow by build year. Send photos and we will cross-check the number for you.

Treat it as a wear item: inspect every 20,000-30,000 km and replace at the first sign of leakage, noise or performance loss. Real service life swings widely with climate, road surface and duty cycle, so mileage on its own is a weak indicator.

Wholesale pricing for 1403503406 depends on order quantity, surface treatment and packing. Standard references are quoted ex-Guangzhou with tiered pricing from 10 pieces upward — send quantity and destination port and a quotation usually returns within one business day.

A supersession happens when the maker revises a control arm and issues a new tail number. The revision normally changes a small physical detail rather than the fit. Where we know a supersession chain for 1403503406 we list the current reference; ask our desk for written confirmation before a large order.

Incoming batches pass a dimensional check, a material look-up against the suspension, steering & brake specification, and a visual inspection for finish defects. Critical dimensions are measured per carton and the photographs are archived against the order number.

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.