OE Quality
60-Day Returns

Standard Ignition AX18 Ambient Air Temperature Sensor
Reliable Ambient Air Temperature Sensor for Chrysler, Dodge, and Plymouth
The Standard Ignition AX18 Ambient Air Temperature Sensor is designed to provide accurate temperature readings for your vehicle's HVAC system. Compatible with a range of Chrysler, Dodge, and Plymouth models, this sensor ensures your climate control operates efficiently under varying weather conditions.
- Attachment Method: Plug in for straightforward installation
- Connector Type: Female oval plug with one connector
- Terminal Type: Two male pin terminals for secure electrical connection
- Color: Gray and gold components for durability and corrosion resistance
- Thread Size: 18mm x 1.50 for precise fitment
- No additional hardware or mounting brackets included
- Wiring harness not included
Product Details and Specifications
The AX18 Ambient Air Temperature Sensor from Standard Ignition is engineered to meet OEM specifications for a variety of Chrysler, Dodge, and Plymouth vehicles including Caravan, Concorde, Daytona, Dynasty, Grand Caravan, Grand Voyager, Imperial, Intrepid, Lancer, LeBaron, LHS, New Yorker, Shadow, Spirit, Sundance, Town & Country, Viper, and Voyager models. Featuring a plug-in attachment method and a female oval connector, this sensor offers a reliable electrical interface with two male pin terminals. The gray and gold color scheme indicates quality materials designed to resist corrosion and wear. The sensor’s 18mm x 1.50 thread size ensures a secure and proper fit in the mounting location.
Common Applications and Problem Resolution
- Helps maintain accurate ambient temperature readings for HVAC climate control systems
- Resolves issues with incorrect temperature display inside the vehicle
- Prevents HVAC system malfunctions caused by faulty temperature input
- Addresses intermittent or no signal problems from the ambient air temperature sensor
- Improves overall vehicle comfort by ensuring proper sensor function
Installation Notes and Tips
Installation of the Standard Ignition AX18 sensor requires no additional hardware or mounting brackets, simplifying the replacement process. Ensure the sensor is threaded securely using the 18mm x 1.50 thread size to avoid leaks or loose connections. The plug-in female oval connector should be firmly attached to the vehicle’s wiring harness. Since the wiring harness is not included, verify compatibility with your vehicle’s existing harness before installation. Proper installation will help maintain accurate sensor readings and HVAC system performance.
Quality Assurance and Warranty
Standard Ignition parts are manufactured to meet or exceed OEM standards, providing reliable performance and durability. While no specific warranty details are provided here, Standard Ignition typically offers coverage against defects in materials and workmanship. Using the AX18 Ambient Air Temperature Sensor ensures compatibility and quality for your Chrysler, Dodge, or Plymouth vehicle’s HVAC system.
| Brand | Standard Ignition |
| Part Number | AX18 |
| Attachment Method | Plug In |
| Color | Gray, Gold |
| Connector Gender | Female |
| Connector Shape | Oval |
| Connector Type | Plug In |
| Hardware Included | No |
| Mounting Bracket(s) Included | No |
| Terminal Gender | Male |
| Terminal Type | Pin |
| Thread Size (mm) | 18MMX1.50 |
| Wiring Harness Included | No |
This part fits 137 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2002 | Dodge | Viper | N/A | |||
| 2001 | Dodge | Viper | N/A | |||
| 2000 | Dodge | Viper | N/A | |||
| 1999 | Dodge | Viper | N/A | |||
| 1998 | Dodge | Viper | N/A | |||
| 1997 | Chrysler | Concorde | N/A | |||
| 1997 | Chrysler | LHS | N/A | |||
| 1997 | Dodge | Viper | N/A | |||
| 1996 | Chrysler | Concorde | N/A | |||
| 1996 | Chrysler | Intrepid | N/A | |||
| 1996 | Chrysler | LHS | N/A | |||
| 1996 | Chrysler | New Yorker | N/A | |||
| 1996 | Chrysler | Town & Country | N/A | |||
| 1996 | Dodge | Intrepid | 3.3L | V6 | N/A | |
| 1996 | Dodge | Intrepid | 3.5L | V6 | N/A | |
| 1996 | Dodge | Viper | N/A | |||
| 1995 | Chrysler | Concorde | N/A | |||
| 1995 | Chrysler | Intrepid | N/A | |||
| 1995 | Chrysler | LHS | N/A | |||
| 1995 | Chrysler | New Yorker | N/A | |||
| 1995 | Dodge | Intrepid | 3.3L | V6 | N/A | |
| 1995 | Dodge | Intrepid | 3.5L | V6 | N/A | |
| 1995 | Dodge | Viper | N/A | |||
| 1994 | Chrysler | Concorde | N/A | |||
| 1994 | Chrysler | LHS | N/A | |||
| 1994 | Chrysler | New Yorker | N/A | |||
| 1994 | Dodge | Caravan | 2.5L | L4 | N/A | Intake Manifold Absolute Pressure Sensor (MAP) |
| 1994 | Dodge | Caravan | 3.0L | V6 | N/A | |
| 1994 | Dodge | Caravan | 3.3L | V6 | N/A | |
| 1994 | Dodge | Intrepid | 3.3L | V6 | N/A | |
| 1994 | Dodge | Intrepid | 3.5L | V6 | N/A | |
| 1994 | Dodge | Viper | N/A | |||
| 1994 | Plymouth | Grand Voyager | 3.0L | V6 | N/A | |
| 1994 | Plymouth | Grand Voyager | 3.3L | V6 | N/A | |
| 1994 | Plymouth | Grand Voyager | 3.8L | V6 | N/A | |
| 1994 | Plymouth | Voyager | 2.5L | L4 | N/A | w/ Oval Connector |
| 1994 | Plymouth | Voyager | 3.0L | V6 | N/A | |
| 1994 | Plymouth | Voyager | 3.3L | V6 | N/A | |
| 1993 | Chrysler | Concorde | N/A | |||
| 1993 | Chrysler | Daytona | 3.0L | V6 | N/A | |
| 1993 | Chrysler | Daytona | 2.5L | L4 | N/A | |
| 1993 | Chrysler | Imperial | 3.8L | V6 | N/A | On Throttle Body |
| 1993 | Chrysler | LeBaron | 3.0L | V6 | N/A | On Throttle Body |
| 1993 | Chrysler | LeBaron | 2.5L | L4 | N/A | On Throttle Body |
| 1993 | Chrysler | New Yorker | N/A | |||
| 1993 | Chrysler | Town & Country | 3.3L | V6 | N/A | On Throttle Body |
| 1993 | Dodge | Caravan | 2.5L | L4 | N/A | Intake Manifold Absolute Pressure Sensor (MAP) |
| 1993 | Dodge | Daytona | 2.2L | L4 | N/A | On Throttle Body |
| 1993 | Dodge | Daytona | 3.0L | V6 | N/A | On Throttle Body |
| 1993 | Dodge | Intrepid | 3.3L | V6 | N/A | |
| 1993 | Dodge | Intrepid | 3.5L | V6 | N/A | |
| 1993 | Dodge | Viper | N/A | |||
| 1992 | Chrysler | Daytona | 3.0L | V6 | N/A | |
| 1992 | Chrysler | Daytona | 2.5L | L4 | N/A | Intake Manifold Absolute Pressure Sensor (MAP) |
| 1992 | Chrysler | Dynasty | 2.5L | L4 | N/A | On Throttle Body |
| 1992 | Chrysler | Imperial | 3.8L | V6 | N/A | On Throttle Body |
| 1992 | Chrysler | LeBaron | 3.0L | V6 | N/A | On Throttle Body |
| 1992 | Chrysler | LeBaron | 2.5L | L4 | N/A | On Throttle Body |
| 1992 | Chrysler | New Yorker | N/A | |||
| 1992 | Chrysler | Town & Country | 3.3L | V6 | N/A | On Throttle Body |
| 1992 | Dodge | Caravan | 2.5L | L4 | N/A | Intake Manifold Absolute Pressure Sensor (MAP) |
| 1992 | Dodge | Daytona | 3.0L | V6 | N/A | On Throttle Body |
| 1992 | Dodge | Daytona | 2.2L | L4 | N/A | On Throttle Body |
| 1992 | Dodge | Daytona | 2.5L | L4 | N/A | On Throttle Body |
| 1992 | Dodge | Spirit | 2.2L | L4 | N/A | On Throttle Body |
| 1992 | Dodge | Viper | N/A | |||
| 1991 | Chrysler | Daytona | 3.0L | V6 | N/A | |
| 1991 | Chrysler | Daytona | 2.5L | L4 | N/A | Intake Manifold Absolute Pressure Sensor (MAP) |
| 1991 | Chrysler | Dynasty | 2.5L | L4 | N/A | On Throttle Body |
| 1991 | Chrysler | Imperial | 3.3L | V6 | N/A | On Throttle Body |
| 1991 | Chrysler | Imperial | 3.8L | V6 | N/A | On Throttle Body |
| 1991 | Chrysler | LeBaron | 2.5L | L4 | N/A | On Throttle Body |
| 1991 | Chrysler | LeBaron | 3.0L | V6 | N/A | On Throttle Body |
| 1991 | Chrysler | Town & Country | 3.3L | V6 | N/A | On Throttle Body |
| 1991 | Dodge | Caravan | 3.0L | V6 | N/A | |
| 1991 | Dodge | Caravan | 3.3L | V6 | N/A | |
| 1991 | Dodge | Caravan | 2.5L | L4 | N/A | Intake Manifold Absolute Pressure Sensor (MAP) |
| 1991 | Dodge | Daytona | 2.5L | L4 | N/A | On Throttle Body |
| 1991 | Dodge | Daytona | 3.0L | V6 | N/A | On Throttle Body |
| 1991 | Dodge | Grand Caravan | N/A | |||
| 1991 | Plymouth | Grand Voyager | N/A | |||
| 1991 | Plymouth | Sundance | 2.5L | L4 | N/A | Engine Intake Manifold Temperature Sensor fits on Cylinder Head. |
| 1991 | Plymouth | Voyager | 2.5L | L4 | N/A | w/ Oval Connector |
| 1991 | Plymouth | Voyager | 3.0L | V6 | N/A | |
| 1991 | Plymouth | Voyager | 3.3L | V6 | N/A | |
| 1990 | Chrysler | Daytona | 3.0L | V6 | N/A | Intake Manifold Absolute Pressure Sensor (MAP) |
| 1990 | Chrysler | Daytona | 2.5L | L4 | N/A | Intake Manifold Absolute Pressure Sensor (MAP) |
| 1990 | Chrysler | Dynasty | 2.5L | L4 | N/A | On Throttle Body |
| 1990 | Chrysler | Imperial | 3.3L | V6 | N/A | On Throttle Body |
| 1990 | Chrysler | LeBaron | 3.0L | V6 | N/A | On Throttle Body |
| 1990 | Chrysler | LeBaron | 2.2L | L4 | N/A | On Throttle Body |
| 1990 | Chrysler | LeBaron | 2.5L | L4 | N/A | On Throttle Body |
| 1990 | Chrysler | New Yorker | N/A | |||
| 1990 | Chrysler | Town & Country | 3.3L | V6 | N/A | On Throttle Body |
| 1990 | Dodge | Caravan | 3.0L | V6 | N/A | |
| 1990 | Dodge | Caravan | 3.3L | V6 | N/A | |
| 1990 | Dodge | Caravan | 2.5L | L4 | N/A | Intake Manifold Absolute Pressure Sensor (MAP) |
| 1990 | Dodge | Daytona | 2.5L | L4 | N/A | On Throttle Body |
| 1990 | Dodge | Daytona | 2.2L | L4 | N/A | On Throttle Body |
| 1990 | Dodge | Daytona | 3.0L | V6 | N/A | On Throttle Body |
| 1990 | Dodge | Grand Caravan | N/A | |||
| 1990 | Dodge | Shadow | 2.2L | L4 | N/A | On Throttle Body |
| 1990 | Plymouth | Grand Voyager | N/A | |||
| 1990 | Plymouth | Sundance | 2.5L | L4 | N/A | Engine Intake Manifold Temperature Sensor fits on Cylinder Head. |
| 1990 | Plymouth | Voyager | 2.5L | L4 | N/A | w/ Oval Connector |
| 1990 | Plymouth | Voyager | 3.0L | V6 | N/A | |
| 1989 | Chrysler | Daytona | 2.5L | L4 | N/A | Intake Manifold Absolute Pressure Sensor (MAP) |
| 1989 | Chrysler | Daytona | 2.2L | L4 | N/A | Intake Manifold Absolute Pressure Sensor (MAP) |
| 1989 | Chrysler | Dynasty | 2.5L | L4 | N/A | On Throttle Body |
| 1989 | Chrysler | LeBaron | 2.2L | L4 | N/A | On Throttle Body |
| 1989 | Chrysler | LeBaron | 2.5L | L4 | N/A | On Throttle Body |
| 1989 | Chrysler | New Yorker | N/A | |||
| 1989 | Dodge | Caravan | 3.0L | V6 | N/A | |
| 1989 | Dodge | Caravan | 2.5L | L4 | N/A | Intake Manifold Absolute Pressure Sensor (MAP) |
| 1989 | Dodge | Daytona | 2.2L | L4 | N/A | On Throttle Body |
| 1989 | Dodge | Daytona | 2.5L | L4 | N/A | On Throttle Body |
| 1989 | Dodge | Grand Caravan | 3.0L | V6 | N/A | |
| 1989 | Dodge | Lancer | 2.2L | L4 | N/A | w/o Gauge; On Cylinder Head |
| 1989 | Dodge | Lancer | 2.5L | L4 | N/A | w/o Gauge; On Cylinder Head |
| 1989 | Dodge | Shadow | 2.2L | L4 | N/A | On Throttle Body |
| 1989 | Dodge | Shadow | 2.5L | L4 | N/A | On Throttle Body |
| 1989 | Plymouth | Grand Voyager | 3.0L | V6 | N/A | |
| 1989 | Plymouth | Sundance | 2.5L | L4 | N/A | Engine Intake Manifold Temperature Sensor fits on Cylinder Head. |
| 1989 | Plymouth | Voyager | 2.5L | L4 | N/A | w/ Oval Connector |
| 1989 | Plymouth | Voyager | 3.0L | V6 | N/A | |
| 1988 | Chrysler | Dynasty | 2.5L | L4 | N/A | On Throttle Body |
| 1988 | Chrysler | Town & Country | 2.2L | L4 | N/A | Engine Intake Manifold Temperature Sensor fits on Cylinder Head. |
| 1988 | Dodge | Caravan | 3.0L | V6 | N/A | |
| 1988 | Dodge | Caravan | 2.5L | L4 | N/A | Intake Manifold Absolute Pressure Sensor (MAP) |
| 1988 | Dodge | Daytona | 2.2L | L4 | N/A | On Throttle Body |
| 1988 | Dodge | Grand Caravan | 3.0L | V6 | N/A | Engine Intake Manifold Temperature Sensor fits on Cylinder Head. |
| 1988 | Dodge | Lancer | 2.2L | L4 | N/A | w/o Gauge; On Cylinder Head |
| 1988 | Dodge | Lancer | 2.5L | L4 | N/A | w/o Gauge; On Cylinder Head |
| 1988 | Plymouth | Grand Voyager | 3.0L | V6 | N/A | Engine Intake Manifold Temperature Sensor fits on Cylinder Head. |
| 1988 | Plymouth | Voyager | 2.5L | L4 | N/A | w/ Oval Connector |
| 1988 | Plymouth | Voyager | 3.0L | V6 | N/A | |
| 1985 | Chrysler | New Yorker | 2.6L | L4 | N/A | On Throttle Body |
* 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:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.