HomeBelts and Cooling > Radiators, Coolers and Related ComponentsGenuine 4H0121088AD Engine Coolant Reservoir Hose - Lower
Part #: 4H0121088AD

Genuine 4H0121088AD Engine Coolant Reservoir Hose - Lower

Lower
⚙️ 1 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Audi, A8 Quattro
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Overview of Genuine Engine Coolant Reservoir Hose

The Genuine 4H0121088AD engine coolant reservoir hose is designed specifically for Audi A8 Quattro models. This essential component ensures proper coolant flow between the reservoir and the engine, maintaining optimal operating temperatures.

  • Compatible with Audi A8 Quattro vehicles
  • OEM part number 4H0121088AD for precise fitment
  • Engine coolant reservoir hose designed for reliable coolant circulation
  • Durable construction to withstand engine heat and pressure
  • Direct replacement part meeting manufacturer specifications

Detailed Product Description

This engine coolant reservoir hose, part number 4H0121088AD, is engineered to meet the exact specifications required by Audi for the A8 Quattro. It connects the coolant reservoir to the engine cooling system, allowing coolant to flow efficiently and preventing overheating. Manufactured by Genuine, this hose maintains the integrity of the cooling system by resisting heat, pressure, and chemical exposure common in engine environments. Its precise fitment reduces the risk of leaks and ensures consistent engine performance.

Common Applications and Problem Resolution

This hose is used in the cooling system of Audi A8 Quattro models to maintain proper coolant circulation. It addresses several issues including:

  • Coolant leaks caused by cracked or worn hoses
  • Engine overheating due to restricted coolant flow
  • Pressure loss in the cooling system
  • Degradation from exposure to engine heat and chemicals
  • Replacement of damaged or aged reservoir hoses

Installation Notes and Tips

When installing the Genuine 4H0121088AD engine coolant reservoir hose, ensure the engine is cool to avoid burns. Inspect surrounding components for wear or damage during replacement. Use proper clamps to secure the hose and check for leaks after installation. It is recommended to follow Audi’s service manual guidelines for torque specifications and hose routing to maintain system integrity.

Quality Assurance and Warranty

As a Genuine part, the 4H0121088AD engine coolant reservoir hose meets Audi’s original equipment standards for quality and durability. This ensures reliable performance and compatibility with the Audi A8 Quattro cooling system. Warranty coverage is subject to the terms provided by the manufacturer, typically covering defects in materials and workmanship.

This part fits 1 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2014AudiA8 Quattro3.0LV6Lower

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.