Replace your damaged or inoperative Duramax PCV valve with this all in one service kit from DHD. As your truck ages these diaphragms swell and distort from exposure to temperature cycles and engine oil. This distortion can decrease the valves efficiency and lead to oil leaks. DHD's service kit includes everything you need to do the job quickly and correctly.
1 Stamped PCV Valve Cover
1 Replacement Diaphragm
1 Replacement Compression Spring
4 New M5 Screws
2001-2005 LB7 & LLY Duramax Trucks
Note: Due to some variations in valve cover years and applications, please confirm your cover bolt pattern is approx 1-3/8" x 1-3/8" square. May not fit Kodiak or 4500 series trucks due to valve cover variations..