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Tel: +86-15933713889
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4M0121081DB Wholesale Engine Coolant Reservoir Overflow Hose for Audi Q7 4M 2023-2026 2.0T, Upper Vent Line Pipe 4M0 121 081 DB
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PRODUCT HIGHLIGHTS
- This expansion tank overflow coolant vent hose only fits Audi RSQ7 4M with 4.0L V8 twin turbo TDI engine from 2017 to 2024. It cannot be installed on standard Q7, Q8, VW Touareg, 3.0T, 2.0T or hybrid models, plug-and-play without modification.
- Exact OEM mould dimension, identical pipe bending radian & original quick-lock buckle, direct plug-and-play replacement without cutting or trimming.
- One-piece PA nylon hard pipe + double-layer thickened EPDM rubber joints, withstand high heat of 4.0T performance engine, anti-aging & anti-cracking.
- Excellent antifreeze corrosion resistance, no swelling, hardening or coolant seepage under long high-load driving.
- Seamless vulcanized joint between plastic tube and rubber ends; every pipe passes 100% air tightness pressure test before shipment.
- Professional overflow vent pipeline to balance cooling system pressure, eliminate air lock and prevent high-power engine overheating.
- Exclusive match for RSQ7 4M 4.0 V8 TDI; clearly mark incompatible regular 3.0T/hybrid models to reduce return rate.
- Original factory snap lock sealing connector, tight clamping after installation, no leakage under intense engine vibration.
- Factory bulk supply for auto repair shops & global distributors, neutral carton and custom private label printing available.










FAQsAre you factory or trading company?We are a professional auto parts manufacturer with over 16 years of experience. We support factory direct sales, strict quality control and stable delivery.What products do you supply?We specialize in manufacturing automotive rubber components. Our main products include:Silicone Hose,Air Intake Hose & Air Hose,Radiator Hose & Expansion Tank Hose,Heater Hose & PVC Hose,Seal StripDo you support OEM & customized production?Yes, OEM and ODM are welcome. We can customize logo, label, packaging, size and shape according to your OEM numbers, drawings or samples.What is your MOQ and sample policy?Stock items have no MOQ limit, customized orders take 100 pcs per item. Free samples are provided, while buyers bear the freight cost.How about your delivery time?5-10 days for in-stock goods, 15-20 days for customized bulk orders. We guarantee on-time delivery even in peak seasons with sufficient production capacityWhat are your payment terms?100% advance payment for orders under 1000USD; 30% T/T deposit + 70% balance before shipment for orders over 1000USD.Are your products fully compatible with original cars?All products are produced strictly by OEM standard parameters. They fit car models perfectly with no leakage and no installation problems.How about your product quality and warranty?We adopt high-temperature and aging-resistant EPDM/silicone materials and high-density filter paper. All goods are fully inspected before shipment, with 12 months professional warranty.
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CONTACT US
Tel: +86-0319-5532118 / +86-15933713889
Fax: +86-0319-8138815
E-Mail: admin@qhhuapeng.com
Factory Address: No. 2 Yongxing Street, Liuzhuang Village, Gexianzhuang Town, Qinghe County, Xingtai City, Hebei Province, China
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