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Vaico
VAICOVaico V10-4478 Engine Coolant Reservoir
| Brand | Vaico V10-4478 |
|---|---|
| Height [mm] | 145 |
| Length [mm] | 305 |
| Packaging height [cm] | 14,5 |
| Packaging width [cm] | 29 |
| Weight [kg] | 0.576 |
| Width [mm] | 290 |
| Product line | VAICO |
| Fits | Audi and Porsche · 30 vehicles |
Coolant reservoir. Stores engine coolant for stable system operation.
VAICO line. Brand-focused replacement part from a trusted automotive supplier.
Cross-references 8K0 121 403 D, 8K0 121 403 G and 8K0 121 403 H for the same application. See all 6.
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Not what you need? See all Engine Coolant Reservoir options
Engine Coolant Reservoir for Audi and Porsche
VAICO V10-4478 is an engine coolant reservoir for select Audi and Porsche applications. Built to match OE reference 8K0121403Q, it supports proper coolant expansion and recovery in vehicles that use this reservoir design.
Key Features
- Engine coolant reservoir for cooling system service
- Dimensions: 305 mm length, 290 mm width, 145 mm height
- Lightweight construction at 0.576 kg
- Packaged size: 29 cm x 14.5 cm
- OE reference alignment for direct replacement use
- VAICO part number V10-4478 for catalog matching
Fitment Details
- Fits 2012-2017 Audi A5 Quattro, N/A. Grade: Aftermarket; PR-TD1,TG6,TL6,TM4,TQ6; With OE No. 8K0121403Q; VAICO
- Fits 2017 Porsche Macan, N/A. Grade: Aftermarket; Deleted without replacement; With OE No. 8K0121403Q; VAICO
- Fits 2013-2016 Audi A4 allroad, N/A. Grade: Aftermarket; With OE No. 8K0121403Q; VAICO
- Fits 2013-2016 Audi allroad, N/A. Grade: Aftermarket; With OE No. 8K0121403Q; VAICO
- Fits 2011-2016 Audi Q5, N/A. Grade: Aftermarket; With OE No. 8K0121403Q; VAICO
- Fits 2013-2015 Audi A4, N/A. Grade: Aftermarket; With OE No. 8K0121403Q; VAICO
- Fits 2013-2015 Audi A4 Quattro, N/A. Grade: Aftermarket; With OE No. 8K0121403Q; VAICO
- Fits 2012-2014 Audi A5, N/A. Grade: Aftermarket; PR-TD1,TG6,TL6,TM4,TQ6; With OE No. 8K0121403Q; VAICO
What This Part Helps Address
- Cracked or leaking coolant expansion tank
- Low coolant level warnings caused by reservoir failure
- Coolant loss from aging plastic components
- Reservoir replacement after OE part wear or damage
- Cooling system service on Audi A4, Audi A5, Audi Q5, and Porsche Macan applications
Installation Notes and Tips
Verify OE number 8K0121403Q and compare reservoir dimensions before installation. Confirm the vehicle’s PR codes where listed, especially on Audi A5 and Audi A5 Quattro applications. Inspect hoses, caps, and mounting points during replacement so the cooling system is sealed correctly after service. This part cross-references OE-style numbers such as 8K0 121 403 Q and 8K0 121 403 H for the same application.
Quality Assurance
VAICO supplies aftermarket cooling system components with OE-number matching for catalog accuracy and application control. VAICO V10-4478 is listed against confirmed Audi and Porsche fitments to support correct part selection for the specified vehicles.
This part fits 30 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
| Year | Make | Model | Body Type | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|---|
| 2017 | Audi | A5 Quattro | Convertible | 2.0L | L4 | — | N/A | Grade: Aftermarket; PR-TD1,TG6,TL6,TM4,TQ6; With OE No. 8K0121403Q; VAICO |
| 2017 | Porsche | Macan | — | 2.0L | L4 | — | N/A | Grade: Aftermarket; Deleted without replacement; With OE No. 8K0121403Q; VAICO |
| 2016 | Audi | A4 allroad | — | 2.0L | L4 | — | N/A | Grade: Aftermarket; With OE No. 8K0121403Q; VAICO |
| 2016 | Audi | A5 Quattro | — | 2.0L | L4 | — | N/A | Grade: Aftermarket; PR-TD1,TG6,TL6,TM4,TQ6; With OE No. 8K0121403Q; VAICO |
| 2016 | Audi | allroad | — | 2.0L | L4 | — | N/A | Grade: Aftermarket; With OE No. 8K0121403Q; VAICO |
| 2016 | Audi | Q5 | — | 2.0L | L4 | ELECTRIC/GAS | N/A | Grade: Aftermarket; With OE No. 8K0121403Q; VAICO |
| 2015 | Audi | A4 | — | 2.0L | L4 | — | N/A | Grade: Aftermarket; With OE No. 8K0121403Q; VAICO |
| 2015 | Audi | A4 allroad | — | 2.0L | L4 | — | N/A | Grade: Aftermarket; With OE No. 8K0121403Q; VAICO |
| 2015 | Audi | A4 Quattro | — | 2.0L | L4 | — | N/A | Grade: Aftermarket; With OE No. 8K0121403Q; VAICO |
| 2015 | Audi | A5 Quattro | — | 2.0L | L4 | — | N/A | Grade: Aftermarket; PR-TD1,TG6,TL6,TM4,TQ6; With OE No. 8K0121403Q; VAICO |
| 2015 | Audi | allroad | — | 2.0L | L4 | — | N/A | Grade: Aftermarket; With OE No. 8K0121403Q; VAICO |
| 2015 | Audi | Q5 | — | 2.0L | L4 | ELECTRIC/GAS | N/A | Grade: Aftermarket; With OE No. 8K0121403Q; VAICO |
| 2014 | Audi | A4 | — | 2.0L | L4 | — | N/A | Grade: Aftermarket; With OE No. 8K0121403Q; VAICO |
| 2014 | Audi | A4 allroad | — | 2.0L | L4 | — | N/A | Grade: Aftermarket; With OE No. 8K0121403Q; VAICO |
| 2014 | Audi | A4 Quattro | — | 2.0L | L4 | — | N/A | Grade: Aftermarket; With OE No. 8K0121403Q; VAICO |
| 2014 | Audi | A5 | — | 2.0L | L4 | — | N/A | Grade: Aftermarket; PR-TD1,TG6,TL6,TM4,TQ6; With OE No. 8K0121403Q; VAICO |
| 2014 | Audi | A5 Quattro | — | 2.0L | L4 | — | N/A | Grade: Aftermarket; PR-TD1,TG6,TL6,TM4,TQ6; With OE No. 8K0121403Q; VAICO |
| 2014 | Audi | allroad | — | 2.0L | L4 | — | N/A | Grade: Aftermarket; With OE No. 8K0121403Q; VAICO |
| 2014 | Audi | Q5 | — | 2.0L | L4 | ELECTRIC/GAS | N/A | Grade: Aftermarket; With OE No. 8K0121403Q; VAICO |
| 2013 | Audi | A4 | — | 2.0L | L4 | — | N/A | Grade: Aftermarket; With OE No. 8K0121403Q; VAICO |
| 2013 | Audi | A4 allroad | — | 2.0L | L4 | — | N/A | Grade: Aftermarket; With OE No. 8K0121403Q; VAICO |
| 2013 | Audi | A4 Quattro | — | 2.0L | L4 | — | N/A | Grade: Aftermarket; With OE No. 8K0121403Q; VAICO |
| 2013 | Audi | A5 | — | 2.0L | L4 | — | N/A | Grade: Aftermarket; PR-TD1,TG6,TL6,TM4,TQ6; With OE No. 8K0121403Q; VAICO |
| 2013 | Audi | A5 Quattro | — | 2.0L | L4 | — | N/A | Grade: Aftermarket; PR-TD1,TG6,TL6,TM4,TQ6; With OE No. 8K0121403Q; VAICO |
| 2013 | Audi | allroad | — | 2.0L | L4 | — | N/A | Grade: Aftermarket; With OE No. 8K0121403Q; VAICO |
| 2013 | Audi | Q5 | — | 2.0L | L4 | — | N/A | Grade: Aftermarket; With OE No. 8K0121403Q; VAICO |
| 2012 | Audi | A5 | — | 2.0L | L4 | — | N/A | Grade: Aftermarket; PR-TD1,TG6,TL6,TM4,TQ6; With OE No. 8K0121403Q; VAICO |
| 2012 | Audi | A5 Quattro | — | 2.0L | L4 | — | N/A | Grade: Aftermarket; PR-TD1,TG6,TL6,TM4,TQ6; With OE No. 8K0121403Q; VAICO |
| 2012 | Audi | Q5 | — | 2.0L | L4 | — | N/A | Grade: Aftermarket; With OE No. 8K0121403Q; VAICO |
| 2011 | Audi | Q5 | — | 2.0L | L4 | — | N/A | Grade: Aftermarket; With OE No. 8K0121403Q; VAICO |
| No rows match your filter. | ||||||||
Directly replaces or cross-references 6 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
8K0 121 403 D8K0 121 403 G8K0 121 403 H8K0 121 403 Q8K0 121 403 T8K0121403AC