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Number 2 marks the part’s position in this exploded view (Audi A8L (2017-2022)).
Other diagrams in the gallery may use a different number for the same part.
Product overview
Genuine OEM Audi Engine Heater Coolant Hose, part number 4N2819316A. This hose circulates coolant between the engine and heater, playing a critical role in both engine temperature regulation and cabin heating. It is specifically designed for Right-Hand Drive (RHD) vehicle configurations. Weighing approximately 0.194 kg and measuring 0.47m in length, this hose is engineered for precise fitment and durability. Choosing a genuine OEM hose ensures correct routing geometry, material resistance to coolant chemicals, and reliable performance under varying engine temperatures and pressures, preventing leaks and system failures.
Catalogue entry: HOSE rhd.
Technical details
- Category
- Heating & A/C
- Customs (HS) code
- 40094200
- Manufacturer
- Audi
- Product Type
- Genuine new auto parts
- Shipping size (L × W × H)
- 47 × 18 × 10 cm
- Shipping weight
- 194 g
Specifications
As recorded in the manufacturer’s parts catalogue for this part number.
Equipment codes
- 9AK
- 9AU
- L0R
PR codes identify the factory option a part belongs to; your vehicle’s are listed on the data sticker in the boot well or service booklet.
Why buy from WW Spares?
- ✓ Genuine OEM inventory sourced directly from factory networks
- ✓ Fitment support from workshop-seasoned parts specialists
- ✓ Global logistics with customs-ready documentation
Need help confirming compatibility? Talk to a specialist
