Cummins Parts List
CNG/LNG Bus Engine Replacement Parts
Engine Series L10, 5.9, 8.3C, 8.3C+, 8.9ISL-G
Clean Energy Parts LLC. allows customers to order items "separately" –unlike the OEM.
PART DESCRIPTION OEM p/n CEP p/n
Standard Life SparkPlug * RC78PYP #1208
Long Life SparkPlug * RC78WYP15 #1221
Long Life SparkPlug 4937472 11017
Standard Life SparkPlug Kit 4089085 CEP 1208-L10
Standard Life SparkPlug Kit 4089086 CEP 1208-5.9
Standard Life SparkPlug Kit
(Original style) 4025416 CEP 1208-8.3
Standard Life SparkPlug Kit
(Current style) 4955310 CEP 1208-8.3N
Long Life SparkPlug Kit (Old p/n) 408986 CEP 1221-8.3
Long Life SparkPlug Kit (Old p/n) 4955226 CEP 1221-8.3
Long Life SparkPlug Kit 4955720 CEP 1221-8.9
Long Life SparkPlug Kit 4955850 CEP 6128-8.9
Long Life SparkPlug Kit 4955851 CEP 6128-8.3
Spark Plug Boot
(NEW Style "Black" current coil) 3973945 CEP-3973945
4989131 CEP-4989131
L10 Series 1 - 26" Ignition Lead 3606714 CEP L10EXT-26
L10 Series 1 - 30" Ignition Lead 3606715 CEP L10EXT-30
L10 Series 2 - 14" Ignition Lead 3606695 CEP L10EXT-14R
L10 Series 2 - 22" Ignition Lead 3606694 CEP L10EXT-22R
L10 Series 3 - 15" Ignition Lead 3606691 CEP L10EXT-15
L10 Series 3 - 18" Ignition Lead 3606692 CEP L10EXT-18
Crank Case Ventilation filter assy 3607166 CCV55248-08
Crank Case Ventilation filter assy (HEF) CCV55248-1002
Oxygen Sensor - 5 wire 4001675 CEP-400167502
Oxygen Sensor - 4 wire 4954893 CEP-4954893
High Pressure Regulator - NABI 6393609 HPNGV28114-3
High pressure Regulator Bus mfg p/n HPNGV28165-3
High Pressure Regulator
(Bus mfg provided) Bus mfg p/n HPNGV28114-1
Woodward Throttle Actuator 3970809 8235-233
Woodward Throttle Actuator
(Original p/n) 3934701 8235-206
Woodward Throttle Actuator 3970806 8235-206
Woodward Throttle Actuator 3975201 8235-207
Woodward Throttle Actuator 3970807 8235-245