Heater Plug - Sparex Part S.40627Heater Plug S. 40627 Ensure optimal engine performance with the Heater Plug S. 40627. This high quality heater plug features an overall length with a probe length of 7 8'' UNF, making it an essential component for various agricultural machinery. Product Specifications Alternative to 65305 Brand Sparex Perkins Build List CE, CJ, CM, CN (Models using Spade Type Terminal), JD, JE, JG, LA, LD, LF, LG, LH, LJ, NC, ND (Models using Spade Type Fixing), TC,