4G0121081EJ Coolant Reservoir Hose for Audi Phideon A6 C7 A7-3.0 2014-2018 2.0T

1. Product Details

Product Overview: This coolant reservoir hose is manufactured as a direct OE-equivalent replacement for the original component. It is built to match the OE part number 4G0121081EJ in size, shape and function, using quality materials and precise production control. Each piece is designed for Audi vehicles and is checked against the original dimensions and mounting layout, so installation is straightforward and the repaired system returns to normal working condition.

Product Name: Coolant Reservoir Hose

OE Number: 4G0121081EJ

Dimensions: Manufactured to the OEM standard size, with correct inner diameter, length and end shapes, formed on OE-matched tooling for direct fitment without modification.

Vehicle Fitment: Phideon C7 A7-3.0

Years: 2014-2018

Quality Assurance: Manufactured under ISO 9001 quality control with tested coolant-resistant compound. Each hose is checked for dimensional accuracy and surface quality before export packaging. Export-standard carton packaging is used so the part arrives clean and undamaged.

2. Product Parameters

• Part Name: Coolant Reservoir Hose
• OE Number: 4G0121081EJ
• Material: Automotive-grade rubber hose with heat and coolant resistance
• Size: OEM standard size, direct fit
• Vehicle Make: Audi
• Fitment Type: Direct OE replacement, bolt-on installation
• Quantity: 1 piece per order
• Engine: 2.0T
• Model Year: 2014-2018

3. Product Features

Why Replace: The original component wears over time under heat, pressure and chemical exposure. A worn or damaged part causes leaks, noise or poor performance, and can lead to secondary damage in the connected system. Fitting this OE-quality replacement restores the vehicle to proper working condition and protects other components from premature failure. Every order is handled with care, and our team provides responsive support for fitment questions before and after purchase.

• Direct replacement for the original coolant reservoir overflow hose.
• Correct inner diameter and length for a tight fit on the reservoir and radiator neck.
• Resists coolant, steam, heat and aging for dependable service.
• Flexible enough for easy routing, rigid enough to avoid collapsing.
• Simple to install with standard hose clamps - no special tools needed.
• 100% quality inspected before packing.

4. Compatible Models & Years

• Phideon C7 A7-3.0

Please confirm your vehicle chassis code and production year before ordering. If the part number matches but the vehicle is not listed, contact us for verification.

5. FAQ

Q1: What is this hose used for?
A: It connects the coolant reservoir (expansion tank) to the radiator or engine cooling circuit, allowing coolant to flow in and out as the system heats up and cools down. For wholesale prices, stock availability or further technical questions, please contact our sales team directly.

Q2: Is it a genuine OEM part?
A: It is an aftermarket OE-equivalent replacement made to the original specification, offering genuine-like performance at a better price. For wholesale prices, stock availability or further technical questions, please contact our sales team directly.

Q3: How do I check fitment?
A: Confirm your vehicle model, chassis code and production year, or compare with the original part number. Our team is happy to help you verify. For wholesale prices, stock availability or further technical questions, please contact our sales team directly.