Description
UMAX PRO 8K0-121-403AC Coolant Bottle – Audi Coolant Expansion Tank
The UMAX PRO 8K0-121-403AC Coolant Bottle is an automotive coolant expansion tank designed for compatible Audi engine cooling systems. It functions as a coolant reservoir, helping accommodate changes in coolant volume as the engine heats up and cools down.
Designed for engine cooling system maintenance and replacement, this expansion tank corresponds to Audi OE reference 8K0121403AC. It provides a reservoir for engine coolant and helps maintain proper cooling system operation when correctly installed.
Key Product Features
- Brand: UMAX PRO
- Part Number: 8K0-121-403AC
- Product Name: Coolant Bottle
- Product Type: Coolant Expansion Tank / Coolant Reservoir
- Product Category: Engine Cooling System
- OE Reference: Audi 8K0121403AC
- Previous OE References: 8K0121403D, 8K0121403G, 8K0121403H, 8K0121403Q, 8K0121403T
- Vehicle Application: Selected Audi A4, A5, A4 Allroad and Q5 models
- Function: Engine coolant storage and expansion management
- Installation: Professional installation recommended
Product Benefits
- Provides a reservoir for engine coolant.
- Helps accommodate coolant expansion and contraction during temperature changes.
- Designed for compatible Audi engine cooling systems.
- Suitable for coolant reservoir replacement and cooling system maintenance.
- Helps maintain proper cooling system operation when correctly fitted.
Vehicle Compatibility
OE reference 8K0121403AC is associated with selected Audi applications, including:
- Audi A4 B8
- Audi A5 and A5 Sportback
- Audi A4 Allroad B8
- Audi Q5 8R
This reference is listed for selected engine configurations, including certain 2.0 TFSI applications. Compatibility depends on the model year, engine, cooling system configuration and vehicle equipment.
Before purchasing the UMAX PRO 8K0-121-403AC Coolant Bottle, compare the OE reference with your existing component and verify compatibility using your vehicle identification number (VIN).
Why Choose UMAX PRO 8K0-121-403AC Coolant Bottle?
Choose the UMAX PRO 8K0-121-403AC Coolant Bottle as a replacement option for a compatible Audi engine cooling system. Correct part selection and professional installation help maintain proper coolant reservoir operation and support effective engine cooling.
Installation Advice: Professional installation is recommended. Inspect coolant hoses, connections, the expansion tank cap and associated cooling system components during replacement. Follow the vehicle manufacturer’s recommended coolant type and filling procedure.
Important: Confirm that your specific UMAX PRO product matches the OE reference and vehicle application before ordering. Check whether the coolant cap and coolant level sensor are included in the product package.
