Spark Plug Washer - Indexing - 14 mm Flat Seat - 60 and 90 Degree Shims - Set of 24 Brand Allstar Performance Shims are designed for flat seat 14mm spark plugs and have a .800 O.D. for proper seating on cylinder heads with standard spark plug pockets. ALL96505 Truck Freight- NO State Restriction-
Proposition 65: These products may contain a chemical known to the state of California to cause cancer and birth defects or other reproductive harm. For more details visit https://www.p65warnings.ca.gov/