Standard Ignition AC45 Idle Air Control Valve

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Standard Ignition AC45 Idle Air Control Valve

Brand	Standard Ignition AC45
Terminal Type	Pin
Fits	Mercedes-Benz · 6 vehicles

Idle air control valve. Regulates engine idle airflow for smoother operation.

Female connector. Single-connector design with two hose connections.

Pin terminals. Three male terminals for a secure electrical connection.

Cross-references Gates 21783, Standard Ignition AC45 and 2-1859 for the same application. See all 5.

$452.51Free shipping

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Idle Air Control Valve for Mercedes-Benz 190E

Standard Ignition AC45 is an idle air control valve for 1984-1986 Mercedes-Benz 190E applications. It is built with a female connector, one connector, two hose connectors, and a 3-pin male terminal layout for direct replacement use in the fuel injection system.

Key Features

Idle Air Control Valve for fuel injection system service
Fits 1984-1986 Mercedes-Benz 190E
Standard Ignition AC45 replacement part number
Female connector with one connector interface
Two hose connectors for idle air control routing
3-pin male terminal design with pin terminals

Detailed Description

Standard Ignition AC45 is an idle air control valve used in the air and fuel delivery system to regulate bypass air at idle. For Mercedes-Benz 190E models from 1984 through 1986, this part supports stable idle control by matching the original connector and terminal configuration. If you are searching for a Mercedes-Benz 190E idle air control valve, AC45 provides a direct-fit service part for the listed applications.

This part cross-references Gates 21783 for the same application.

Common Issues It May Address

Unstable or fluctuating idle speed
Engine stalling when coming to a stop
Idle speed that is too high or too low
Rough idle after warm-up
Idle control faults related to the valve or electrical connection

Installation Notes and Tips

Verify connector style, terminal count, and hose connection layout before installation. Clean the surrounding intake and idle air passages during service to help prevent contamination from affecting the replacement valve. Confirm the vehicle is one of the listed Mercedes-Benz 190E model years before ordering.

Quality Assurance

Standard Ignition supplies replacement ignition and engine management components for automotive service applications. AC45 is cataloged for the specified Mercedes-Benz 190E fitment and built to match the listed electrical and hose connection requirements.

This part fits 6 vehicles

Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

Year	Make	Model	Liters	Cylinders	Position	Notes
1986	Mercedes-Benz	190E	2.3L	L4	N/A	Primary application for specific vehicle models ~ Idle Air Control Valve
1986	Mercedes-Benz	190E	2.3L	L4	N/A	Compatible with various car models.
1985	Mercedes-Benz	190E	2.3L	L4	N/A	Primary application for specific vehicle models ~ Idle Air Control Valve
1985	Mercedes-Benz	190E	2.3L	L4	N/A	Compatible with various car models.
1984	Mercedes-Benz	190E	2.3L	L4	N/A	Primary application for specific vehicle models ~ Idle Air Control Valve
1984	Mercedes-Benz	190E	2.3L	L4	N/A	Compatible with various car models.
No rows match your filter.

Directly replaces or cross-references 5 part numbers

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.

Gates — 21783Standard Ignition — AC452-18590001411725AC126