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- Emission Control
- Mass Air Flow Sensor
- Diesel Glow Plug Relay
- Secondary Air Injection Relay
- Exhaust Gas Recirculation (EGR) Valve Control Solenoid
- Secondary Air Injection Pump Check Valve
- Engine Crankcase Breather Element
- Vapor Canister Purge Valve
- Exhaust Gas Recirculation (EGR) Valve
- Exhaust Gas Recirculation (EGR) Valve Gasket
- Exhaust Gas Recirculation (EGR) Valve Spacer Plate
- Secondary Air Injection Pipe Gasket
- Secondary Air Injection Pump Gasket
- Vacuum Hose
- PCV Valve
- PCV Valve Grommet
- Barometric Pressure Sensor
- Engine Cylinder Head Temperature Sensor
- Exhaust Gas Recirculation (EGR) Pressure Sensor
- Exhaust Gas Recirculation (EGR) Valve Position Sensor
- Exhaust Gas Recirculation (EGR) Valve Temperature Sensor
- Ignition Knock (Detonation) Sensor
- Engine Intake Manifold Temperature Sensor
- Oxygen Sensor
- Vapor Canister Purge Solenoid
- Vacuum Pump
- Vacuum Reservoir
- Vapor Canister
- Emission Check Valve
- Air / Fuel Ratio Sensor
- Secondary Air Injection Pump Connector
- Secondary Air Injection Pump Hose
- Secondary Air Injection Pump Solenoid Valve
- Engine Crankcase Breather Connector
- Engine Crankcase Breather Hose
- Engine Crankcase Breather Hose Grommet
- Engine Crankcase Vent Valve
- PCV Valve Diaphragm
- PCV Valve Hose
- Vapor Canister Purge Valve Assembly
- Vacuum Control Valve
- Vacuum Hose Connector
- Vacuum Pump Gasket
- Vacuum Pump Repair Kit
- Engine Crankcase Breather Gasket
- Evaporative Emissions System Leak Detection Pump
- Secondary Air Injection Pump Mount
- Engine Crankcase Breather Hose Connector
- Vacuum Line
- Mass Air Flow Sensor O-Ring
- Secondary Air Injection Bypass Valve Gasket
- Exhaust Gas Recirculation (EGR) Vacuum Delay Valve
- PCV Valve Kit
- Vacuum Check Valve
- Manifold Absolute Pressure Sensor
- Engine Crankcase Breather Pipe
- Exhaust Gas Recirculation (EGR) Line Gasket
- Engine Crankcase Vent Valve Seal
- Engine Crankcase Vent Kit
- Exhaust Gas Recirculation (EGR) Cooler
- Vacuum Suction Pump
- Vapor Canister Vent Solenoid
- Exhaust Gas Temperature (EGT) Sensor
- Evaporative Emissions System Leak Detection Assembly
- Vapor Canister Purge Solenoid Connector
- Diesel Exhaust Fluid (DEF) Pump
- Diesel Exhaust Fluid (DEF) Tank
- Engine Crankcase Breather Hose Check Valve
- Evaporative Emissions System Pressure Sensor
- Exhaust Gas Recirculation (EGR) Cooler Gasket
- Secondary Air Injection Solenoid
- Secondary Air Injection Pump Adapter
- Secondary Air Injection Pump Bolt
- Secondary Air Injection Pump Bracket
- Secondary Air Injection Pump Nut
- Secondary Air Injection Control Valve Gasket
- Secondary Air Injection Pump
- Exhaust Gas Recirculation (EGR) Vacuum and Evaporation Pressure Regulator Solenoid Valve
- Mass Air Flow Sensor Bolt
- Secondary Air Injection Check Valve
- Exhaust Gas Recirculation (EGR) Valve Air Regulator Flap
- Exhaust Gas Recirculation (EGR) Tube
- Exhaust Gas Recirculation (EGR) Tube Clamp
- Exhaust Gas Recirculation (EGR) Tube Gasket
- Vapor Canister Bolt
- Vapor Canister Bracket
- Emission Label
- Secondary Air Injection Control Valve
- Evaporative Emissions System Lines
- Evaporative Emissions System Line Clamp
- Exhaust Gas Recirculation (EGR) Temperature Switch
- Secondary Air Injection Hose
- Secondary Air Injection Pipe
- Vacuum Pump Seal
- Secondary Air Injection Pump Bushing
- Ignition Knock (Detonation) Sensor Bolt
- Exhaust Gas Recirculation (EGR) Valve Bolt
- Secondary Air Injection Air Mass Sensor
- Diesel Exhaust Fluid (DEF) Module
- Engine Crankcase Breather Hose Kit
- Diesel Exhaust Fluid (DEF) Injector Feed Line
- Diesel Exhaust Fluid (DEF) Pressure Sensor
- Diesel Particulate Sensor
- Secondary Air Injection Pump Grommet
- Secondary Air Injection Pump Insulator
- Nitrogen Oxide (NOx) Sensor
- Exhaust Gas Recirculation (EGR) Valve O-Ring
- Exhaust Gas Recirculation (EGR) Valve Seal
- PCV Valve Hose Seal
- Manifold Absolute Pressure Sensor Screw
- Mass Air Flow Sensor Clamp
- Mass Air Flow Sensor Clip
- Mass Air Flow Sensor Screw
- Mass Air Flow Sensor Seal
- Vacuum Line Adapter
- Vacuum Line Clamp
- Vacuum Line O-Ring
- Secondary Air Injection Pump Hose Clamp
- Exhaust Gas Recirculation (EGR) Cooler Clamp
- Secondary Air Injection Pump Hose Gasket
- Secondary Air Injection Pump Hose Clip
- Secondary Air Injection Pump Mount Insulator
- Secondary Air Injection Pump Hose Bolt
- Exhaust Gas Recirculation (EGR) Pressure Converter
- Exhaust Gas Recirculation (EGR) Cooler Coolant Pipe Gasket
- Diesel Exhaust Fluid (DEF) Filler Pipe Clamp
- Diesel Exhaust Fluid (DEF) Filler Pipe Cap
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Models
Year
2021 Audi A4 Mass Air Flow Sensor - Genuine and OEM replacement parts
Discover Genuine, OEM, and Aftermarket Mass Air Flow Sensors for the 2021 Audi A4. Enhance engine performance, fuel efficiency, and throttle response with precise airflow measurement. Upgrade your driving experience today!
