Sealey Spark Plug Thread Repair Replacement Inserts for VS301

This M14 x 15mm thread insert with 1.25mm pitch is the longer variant designed for Model No. VS301, ideal for spark plug thread repairs in cylinder heads with deeper thread requirements. The 15mm length provides enhanced thread engagement and stability, making it particularly suitable for applications where maximum holding strength is essential. Supplied in a convenient pack of 10, these inserts ensure you have sufficient stock for multiple repair jobs. The longer 15mm profile offers superior resistance to pull-out forces and provides excellent load distribution across the thread length, crucial for maintaining spark plug integrity under engine operating conditions.