High sales Pipe Fitting (Coolant Flange) 11117800048 for BMW N57

If you are sourcing reliable cooling‑system spare parts for BMW premium diesel vehicles, our high‑sales coolant flange pipe fitting with OE number 11117800048 is an excellent aftermarket option for your business. This multi‑port coolant connector comes together with matching sealing gasket, specially manufactured to fit BMW models equipped with N57 3.0L diesel engine, also compatible with N47 2.0L diesel power units, widely applied for 3‑Series, 5‑Series, 6‑Series, 7‑Series, X3, X5, X6 and other mainstream chassis platforms. As an important connecting joint inside engine cooling circuit, it connects multiple coolant hoses and thermostat housing, guides coolant flow, maintains sealed circulation of cooling system, stabilizes engine working temperature and avoids over‑heating failure for diesel motors. This product maintains steady market demand and is widely stocked by auto repair garages, engine rebuild specialists and international distributors across Europe, the Middle East, Asia and other global automotive aftermarket markets.

The coolant flange pipe fitting works in harsh under‑bonnet operating conditions. It continuously withstands high‑temperature coolant soaking, repeated hot‑cold thermal cycling, strong engine vibration and chemical corrosion of coolant additives during long‑term driving. After prolonged service, worn or inferior pipe fittings will trigger a series of typical failures. Common symptoms include crack on flange body, coolant seepage and leakage at joint position, white antifreeze residue around mounting surface, insufficient coolant volume and frequent engine over‑heating warning. If the defective pipe fitting is not replaced in time, continuous coolant loss will cause abnormal temperature rise, damage thermostat, water pump and cylinder‑head gasket, bringing expensive engine overhaul costs. Low‑quality pipe fittings usually adopt inferior recycled reinforced plastic material. They suffer from body cracking, port deformation and persistent leakage under real‑world working conditions. Our 11117800048 coolant flange pipe fitting is professionally engineered to resolve these common cooling‑system faults.

We adopt premium glass‑fiber reinforced high‑temperature‑resistant PA66 engineering plastic for manufacturing this pipe fitting. Advanced precision injection‑molding process improves integral structural rigidity and anti‑cracking performance. Every hose port, mounting hole and sealing contact surface are strictly reproduced according to OE dimension standard. The matched EPDM sealing gasket provides reliable compression‑resistant sealing performance, effectively blocks coolant penetration. Optimized internal runner structure reduces flow resistance and guarantees smooth coolant circulation. Strict component matching technology ensures stable connection performance for BMW N57 diesel engine cooling system.

Every pipe fitting 11117800048 is manufactured strictly in accordance with OE specifications. Key parameters including overall dimension, multi‑port position, mounting‑hole spacing and sealing surface profile fully match original standards. It supports direct drop‑in replacement without cutting, grinding or secondary modification during maintenance work. Professional service technicians can finish replacement efficiently, saving labour costs for repair workshops. After replacing the faulty original unit with our qualified pipe fitting, sealed coolant circulation can be restored, coolant‑leakage troubles eliminated, and stable engine operation of BMW N57 diesel engine can be guaranteed. VIN verification is strongly recommended before installation to confirm proper fitment.

Comprehensive quality control runs through the whole production process. We carry out raw‑material inspection, dimensional verification, high‑low‑temperature cycle ageing test, pressure‑tightness test and finished‑product assembly inspection. All finished pipe fittings pass strict off‑line inspection to secure consistent and stable quality. We select qualified raw materials and strike a good balance between reliable performance and competitive factory price. Compared with expensive original spare parts, our aftermarket pipe fitting provides cost‑effective maintenance solutions for vehicle owners.

As an essential cooling‑system spare part for BMW N57 diesel engine maintenance, pipe fitting 11117800048 is a must‑stock product for your BMW spare‑parts catalogue. We support one‑stop procurement of coolant flanges, water pumps, coolant hoses, expansion tanks, thermostats and other cooling‑system components. Stable continuous supply, flexible minimum‑order quantity and efficient delivery cycle are available for global auto‑parts dealers, importers and repair centres. Bulk orders enjoy favourable wholesale prices. We can provide clear product pictures, specification sheets and accurate vehicle‑fitment information to support your online‑store operation and offline sales promotion.

When BMW N57 vehicle customers face coolant leakage, flange cracking or engine‑overheating faults, experienced technicians tend to recommend OE‑standard 11117800048 pipe fitting. Fitting low‑quality pipe fittings will easily result in premature cracking and repeated coolant leakage, which bring hidden risks to diesel engine cooling system. Our high‑performance pipe fitting features high‑temperature resistance, anti‑deformation property and long service life, making it a profitable hot‑selling product for your auto‑parts business.

We sincerely welcome buyers all over the world to send inquiries for quotations, stock updates and relevant technical materials. We aim to establish long‑term stable win‑win cooperation. We continuously supply premium BMW auto spare parts, satisfy your diversified purchasing demands and help you further expand your local automotive aftermarket market.