Review Fitment Notes to Ensure Proper Fit. Robust diaphragm materials means longer life, improved durability and compatibility with a wide range of fuels. Precisely manufactured internal valves, diaphragms and springs means excellent performance under all engine operating conditions. No audible regulator noise. Consistent and predictable fuel pressure throughout system range of control provides great drivability. 4.2L 6 Cyl. See our other listings. To confirm that this part fits your vehicle, enter your vehicle’s Year, Make, Model, Trim and Engine in the Compatibility Table. Also review the notes section in the compatibility chart for additional specifications about this part. We have been offering automotive parts & supplies for sale since Parts Geek, LLC was formed in 2008. We pride ourselves in providing the best customer service on the Internet. WARNING: This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.