5.9L 3rd Gen Cummins

Discussions of the 3rd generation Cummins Diesel (2003+)

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Understanding the CP3 fuel pump(D-max and Cummins)

Replies: 10

Views: 51K

Feb 6, 2006

rubberfish

Fuel Mileage - Be Honest

3 4 5

Replies: 60

Views: 12K

Nov 27, 2010

Mikes91

2004 / 2004.5 differences??????

Replies: 13

Views: 12K

Mar 27, 2008

tonkadoctor

Adding atf to diesel fuel

Replies: 22

Views: 11K

Nov 6, 2010

steved

Blue smoke and oil smell on start-up

Replies: 16

Views: 10K

Sep 17, 2006

stacerbob

Trouble code P0628

Replies: 4

Views: 9K

Feb 22, 2008

Whit

my new wheels+tires 22.5's

Replies: 9

Views: 8K

May 25, 2011

h2odrx

Need Help - I think I'm getting screwed

Replies: 10

Views: 7K

Feb 17, 2011

Elliott

Synthetics worth it?

Replies: 27

Views: 7K

Oct 17, 2010

GWDriver

fault code p-2146

Replies: 11

Views: 6K

Jul 9, 2009

rigrunner

dim & bright headlights on at same time?

Replies: 8

Views: 6K

Oct 22, 2006

holtzer1

auto to manual swap on an 03 HO

Replies: 8

Views: 6K

Dec 13, 2005

XcumminsX

Water Pump change on my '03 RAM TD

Replies: 10

Views: 6K

Nov 20, 2014

chris142

Why did my nv5600 have catastrophic failure?

Replies: 25

Views: 5K

Nov 10, 2006

Swamp Donkey

MPG Gain's

Replies: 19

Views: 5K

Sep 9, 2011

marblecrusher

AAM 11.5 Rear?

Replies: 15

Views: 5K

Jul 3, 2021

hvydty

Need input from real owners who pull 5th wheels 11,000lbs+

Replies: 3

Views: 5K

Jul 8, 2019

Skidtech

Oil Change intervals?

Replies: 26

Views: 4K

Oct 31, 2006

sle2115

Tow mirrors

Replies: 11

Views: 4K

Feb 4, 2012

alienturtle

Truck Financing

2 3

Replies: 40

Views: 4K

Jun 25, 2006

beretzs

What power!

Replies: 17

Views: 4K

Dec 31, 2007

beretzs

Dr. Performance Predator Stage III

Replies: 4

Views: 4K

May 20, 2007

moconst

Trouble with 2003 Ford F650 5.9L

Replies: 5

Views: 4K

Apr 18, 2014

79jasper

why wont the cummins break?

Replies: 25

Views: 4K

Jun 26, 2006

rubberfish

Cheetah fleece

Replies: 1

Views: 4K

Jan 21, 2017

thunder03

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