M14x1.25x16.8mm spark plug insert p/n 44111 QTY 20 M14x.125x16.8mm spark plug inserts by Time-Sert QTY 20 Requires kit 4412E search# (B00I1OHFL4) or kit 4412 search # B00IZKYTO0 to install this insert. Used in Honda Acura Toyota BMW and others. for spark plugs that are 14x1.25 3/4 reach Washer style. Quanity 10 pcs. p/n 44111 MADE IN USA