HomeAir and Fuel Delivery > Fuel Injection System and Related ComponentsStandard Ignition AC370 Idle Air Control Valve
Part #: AC370

Standard Ignition AC370 Idle Air Control Valve

4 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$279.19Free Shipping
Free ShippingNo Cost to Continental U.S.
Free Returns*Wrong fit? No cost
60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Mazda, Protege
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Standard Ignition AC370 Idle Air Control Valve

The Standard Ignition AC370 Idle Air Control Valve is designed specifically for Mazda Protege models, ensuring precise idle speed regulation. This component features a female connector and blade-type male terminals for reliable electrical connections.

  • Connector Gender: Female
  • Connector Quantity: 1
  • Hose Connector Quantity: 1
  • Terminal Gender: Male
  • Terminal Quantity: 2
  • Terminal Type: Blade terminals

Detailed Product Description

The AC370 idle air control valve from Standard Ignition is engineered to maintain optimal engine idle speed by controlling airflow in the fuel injection system. It includes one female connector and a single hose connector, facilitating straightforward integration with the vehicle’s existing wiring and vacuum lines. The two male blade terminals provide secure and corrosion-resistant electrical contacts, which are essential for consistent valve operation. This part is compatible with Mazda Protege models, ensuring proper fitment and function within the fuel injection system.

Common Applications and Problem Resolution

  • Helps resolve irregular or fluctuating idle speeds in Mazda Protege vehicles
  • Addresses engine stalling issues during idle
  • Improves throttle response at low engine speeds
  • Corrects rough idling caused by faulty air control valves
  • Supports emission control by maintaining stable idle airflow

Installation Notes and Tips

  • Ensure the vehicle is turned off and cooled before installation
  • Disconnect the battery to prevent electrical shorts during replacement
  • Verify connector orientation: female connector and blade terminals must align properly
  • Inspect and clean the hose connection area to prevent air leaks
  • Test idle speed after installation to confirm proper operation

Quality Assurance and Warranty Information

Standard Ignition parts, including the AC370 idle air control valve, are manufactured to meet or exceed OEM specifications. This ensures durability and reliable performance in Mazda Protege vehicles. The product is backed by Standard Ignition’s quality standards, providing confidence in fitment and function. Warranty coverage details should be confirmed with the point of purchase or Standard Ignition directly.

BrandStandard Ignition
Part NumberAC370
Terminal TypeBlade Terminals

This part fits 4 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1998MazdaProtege1.5LL4N/APrimary application for specific vehicle models ~ Idle Air Control Valve
1998MazdaProtege1.5LL4N/ACompatible with various car models.
1997MazdaProtege1.5LL4N/APrimary application for specific vehicle models ~ Idle Air Control Valve
1997MazdaProtege1.5LL4N/ACompatible with various car models.

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

This part directly replaces or is cross-referenced with the following part numbers:

150-71592-29505289812H119073-4760AC453E9T06571Z59920660A

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