OE 13712247444 — Air Filter for Bmw

Four variables explain most of the spread: material grade, whether the goods are new production or clearance stock, packing format, and whether the quote is ex-works or landed. Ask for the material certificate alongside the price — that is what makes a comparison like-for-like.

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 engine & fuel system 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.

Every shipment of 13712247444 leaves with a packing list, photo documentation and a QC report. Warranty terms are agreed per contract and reference that inspection record; claims are settled in writing against the documentation.

For a short distance at reduced load, usually yes — but the risk compounds. A degraded air filter transfers stress to neighbouring components, so a small repair can grow into a full engine & fuel system rebuild. Book the replacement once the symptom is repeatable.

OEM means the part was produced for the vehicle maker's assembly line; aftermarket means it is made independently to the same engineering drawing. For a air filter the practical gap is usually tooling age and packaging rather than fit, provided the tolerance class matches.