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Coolant Hose Flange 06H121132H for Audi A4 A5 A6 Q5 1.8T/2.0T — OEM Cooling System Connector
The Coolant Hose Flange with OEM reference number 06H121132H is a verified direct-fit replacement for a wide range of Audi and Volkswagen vehicles equipped with 1.8 TFSI and 2.0 TFSI/TSI engines from the EA888 Gen 2 engine family. This component, also known as an engine coolant outlet or inlet flange, is a critical part of the engine's cooling system, directing coolant flow between the engine and radiator.
The flange routes coolant to the thermostat housing, where the coolant temperature is assessed to ensure an efficient cooling process. These plastic components are subjected to high heat and pressure, leading to cracks and leaks over time. A failing flange can result in coolant leaks, loose connections, and engine overheating.
This OE-spec replacement flange is manufactured to precise OEM dimensions for easy bolt-on installation and reliable hose connections. It is constructed from high-quality materials (PA66 + GF30) and is heat- and corrosion-resistant, ensuring a tight seal and preventing dangerous coolant loss.
Part Number:
06H121132H
Product Name:
Coolant Hose Flange
Car Model:
Audi A4 A5 A6 Q5
Engine Model:
EA888 Gen 2
Condition:
100% Brand New
Size:
Standard
Weight:
Standard
Origin:
China Mainland
Main Market:
Middle East, Asia, Africa, South America, North America & Europe
⚠️ Important: This flange is designed for EA888 Gen 2 engines only. Always verify your vehicle's engine code and original part number before ordering. The flange features a thermal switch connector — ensure compatibility with your vehicle's sensor configuration. This part is a direct replacement for 06H121132E.
Common Failure Symptoms
Symptom
Description
Coolant leaks
Visible coolant puddles under the vehicle or around the flange area
Loose connections
Hoses not seating properly at the flange
Engine overheating
Temperature gauge rising above normal due to coolant loss
Low coolant warning
Dashboard warning light indiing low coolant level
Coolant smell
Sweet smell from the engine bay indiing a leak
⚠️ Ignoring a failing coolant flange can lead to:
Severe engine damage from overheating
Warped cylinder head or blown head gasket
Complete cooling system failure
Costly engine repairs
Features & Benefits
PA66 + GF30 construction
Glass fiber-reinforced polyamide — resists warping and cracking under high heat and pressure
Precision-engineered to OEM dimensions
Manufactured to exact OE specifiions for easy bolt-on installation and reliable hose connections
3-port design with thermal switch connector
Correct configuration for EA888 Gen 2 engines — ensures proper coolant routing and sensor fitment
Heat- and corrosion-resistant
Withstands extreme engine bay temperatures and coolant chemicals — long-lasting durability
Direct OE replacement
No modifiions required — matches factory mounting points and hose connections precisely
Yimi (Guangzhou) Automotive Parts Co., Ltd.
Located in Guangzhou—the economic and transportation hub of Southern China—we are a specialized supplier and exporter with over 20 years of experience in the automotive parts industry. We focus on the production and sales of high-quality ... Yimi (Guangzhou) Automotive Parts Co., Ltd.
Located in Guangzhou—the economic and transportation hub of Southern China—we are a specialized supplier and exporter with over 20 years of experience in the automotive parts industry. We focus on the production and sales of high-quality ...
