1、OE NUMBER: 38900 is the reference part numbers of spark plug port insert, please double check the part number of your item to ensure perfect fit. 2、FITMENT: Replacement for Ford Triton 4.6L, 5.4L and 6.8 V 10 two valve engines for 1996‑2003. Simple and practical, easy to install, bring you convenience. 3、REPAIR PARTS: Spark plug port insert tool helps you repair other inserts that fail and has no ill effects from heat transfer, improve your work efficiency. 4、CNC PRECISE MACHINING: Spark plug insert adopts stainless steel material, anti rust and sturdy, stable and durable, all threads pass the stop gauge inspection. 5、GREAT PERFORMANCE: Professional manufacturing, spark plug port insert has high performance, strong reliability, making sure safety use, suitable for repair shop.