One-stop shopping high quality heating pipe OE 6421 9329 643, perfectly suitable for BMW 1 Series. Made of upgraded multi-layer reinforced EPDM rubber material, this heating pipe features outstanding heat resistance, pressure resistance, aging resistance and tear resistance, adapting to long-term high temperature and complex under‑hood working environments.Produced in strict accordance with OEM standards, it has accurate overall size and seamless interface matching. The built-in high-performance sealing layer effectively prevents coolant leakage, pipeline rupture and liquid seepage. It ensures smooth circulation of heating system fluid, stable heating output and normal temperature regulation, improving driving comfort in low-temperature conditions.Direct replacement for original aging, hardened and cracked heating pipes, simple installation with no extra modification required. With stable structural toughness, excellent durability and cost-effective price, it is a practical spare part for daily maintenance, vehicle repair and one-stop parts procurement for BMW 1 Series.

OE NO.	1712 7525 023
Item Name	Warm air pipes
Brand Name	Boigevis
Applicable Model	for BMW N52
Warranty	12 months