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