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APP’s 6.6L / 6.7L Fuel Rail Plug (sometimes referred to as race plug) replaces the stock pressure relief valve. Why is that so important?  It maintains fuel rail pressure under heavy engine load conditions—eliminating changes/decrease of rail pressure.

•  Highly recommended for modified engines

•  Eliminates low fuel rail pressure DTC code: P1093 and P0087

•  For 6.6L Duramax and 6.7L Cummins diesel engines (fits both)

•  Machined in the USA from 304 stainless steel (unlike most other lugs which are made of mild steel and then zinc plated)

•  Precision quality achieved by using state-of-the art 7 axis CNC lathes.

SAME PLUG Fits:  Cummins 6.7L, years 2007.5 to current

                               Duramax 6.6L, LLY, LMM, LBZ and LML, years 2004.5 to current

Replaces:  Mopar part # 68005441aa

                   GM part # 9737618

                   Bosch part # 1-110-010-013

Made in the USA

6.6L / 6.7L Fuel Rail Plug for Cummins ’07 to Current, and Duramax ’04 to Current (fits both)

  • Product Code: 4001
  • Availability: In Stock
  • $32.99