1. OEM: OEM Ref 545RFE, 45RFE. You can find the OE part on your original part. Please make sure you are the correct auto part for your vehicle. If you're not sure or don't know, refer to relevant vehicle part reference resources or use vehicle part identification tools. 2. Compatible: 2007 2009 Chrysler Aspen, 2000 2011 Dodge Dakota with 4.7 / 5.7, 1998 2011 Durango 3.6 / 4.7 / 5.7, 2002 2012 Ram 1500 3.7 / 4.7 / 5.7 (More models are as follows); 3. Perfect Performance: Designed for the perfect fit every time, original Equipment (OE) level reliability and function. The platinum wire sensing element responds rapidly to changes in air flow. 4. : Searching related installation video on the internet will be recommended and always wear eye protection and start with installation tools. and high quality for long lasting durability. This product has been tested for fit and road tests to ensure a reliable, direct replacement for the broken one.