The Kooks O2 sensor extension kit for 2009–2015 Ram 1500 5.7L HEMI includes two 6" 4-pin extension harnesses as replacement parts for lost or damaged extensions. These harnesses are the same type included in Kooks header kits where needed and restore correct sensor routing when installing aftermarket exhaust or headers. Kooks extensions are made to OE-style fit and supported by the brand's manufacturing and warranty practices.
Kooks 2009-2015 RAM 1500 HEMI 02 Sensor Extensions