O.S Engines 71641800 TURBO GLOW PLUG P8 COLD

 This is the RP8 Glow Plug for use in the OS Max .21 VZ-B V-Spec and      
      most other .18 -.28 cu in (2.9 - 4.6 cc) turbo head racing engines.     
                                                                              
FEATURES: For use with fuel containing 25% or greater nitromethane content    
          Cold heat rating when outside temperature is high                   
                                                                              
INCLUDES: One O.S.RP8 glow plug                                               
                                                                              
REQUIRES: Glow plug wrench, HCAP2550                                          
                                                                              
SPECS:    Overall Length: 17mm (.67")                                         
          Thread size: M8x.75mm                                               
                                                                              
COMMENTS: This glow plug is different from the conventional glow plug. It is  
           made to fit the inner head of engines with a turbo-type cylinder   
           head design.