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New Member Introductions

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46K
6.5M

📖 Community Rules

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2025+ 4th Gen Ram Cummins2025+ trucks which have various powertrain, electrical, and styling updates compared to 2019-2024
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162K

2025+ Powertrain

Discussion on what directly makes the truck move: Engine, Transmission, Driveshaft, Differentials and Axles
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2025+ Non-Powertrain

Discussion of Accessories, Interior and Exterior modifications, and everything else not power related.
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2019-2024 4th Gen Ram 6.7 Cummins2019-2024 trucks which have different powertrain, electrical, interior, and front clip, but still built on the 4th gen platform

2019-2024 General Discussion

General Chit Chat About the 2019-2024 6.7L 4th Gen Cummins - NO ADVERTISING -
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2019-2024 Powertrain

Discussion on what directly makes the truck move: Engine, Transmission, Driveshaft, Differentials and Axles
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4.1M

2019-2024 Non-Powertrain

Discussion of Accessories, Interior and Exterior modifications, and everything else not power related.
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6.8M
2013-2018 4th Gen Ram 6.7L CumminsLate 4th Gen Trucks- All with DEF

2013-2018 General Discussion

General Chit Chat About the 2013-18 model year 6.7L 4th Gen Cummins - NO ADVERTISING -
579K186M1
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186M

2013-2018 Powertrain

Discussion on what directly makes the truck move: Engine, Transmission, Driveshaft, Differentials and Axles
15K4.8M
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4.8M

2013-2018 Non-Powertrain

Discussion of Accessories, Interior and Exterior modifications, and everything else not power related.
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14M
2010-2012 4th Gen Ram 6.7L CumminsEarly 4th Gen Trucks- Non DEF Pickups

2010-2012 General Discussion

General Chit Chat About the 2010-12 model year 6.7L 4th Gen Cummins - NO ADVERTISING
231K68M
231K
68M

2010-2012 Powertrain

Discussion on what directly makes the truck move: Engine, Transmission, Driveshaft, Differentials and Axles
112K54M
112K
54M

2010-2012 Non-Powertrain

Discussion of Accessories, Interior and Exterior modifications, and everything else not power related.
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66M

2010-2018 Performance Parts Discussion

Discussion of Performance Parts For the 4th Gen Trucks...NO ADVERTISING
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58M

2010-2018 Cab & Chassis Discussion- No Pickups

Discussion of performance, powertrain, and non-powertrain on Cab & Chassis Trucks. ...NO ADVERTISING
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2007.5-2009 3rd Gen Dodge 6.7L CumminsDPF Equipped 6.7s

07.5 - 09 6.7L General Discussion

General Chit Chat About the 6.7L 3rd generation Cummins - NO ADVERTISING
190K62M
190K
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07.5 - 09 6.7L Powertrain

Discussion on what directly makes the truck move: Engine, Transmission, Driveshaft, Differentials and Axles
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70M

07.5 - 09 6.7L Non-Powertrain

Discussion of Accessories, Interior and Exterior modifications, and everything else not power related.
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07.5-09 6.7L Performance Parts Discussion

Discussion of Performance Parts For the 6.7L Trucks...NO ADVERTISING
345K81M
345K
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07.5 - 09 6.7L Cab & Chassis

Discussion of performance, powertrain, and non-powertrain on Cab & Chassis Trucks....NO ADVERTISING
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6.1M
2003-2007.0 3rd Gen Dodge 5.9L CumminsThe High Pressure Common Rail 5.9s

03 - 07 General Discussion

General Chit Chat About the 5.9L 3rd generation Cummins - NO ADVERTISING
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03-07 Powertrain

Discussion on what directly makes the truck move: Engine, Transmission, Driveshaft, Differentials and Axles
574K207M
574K
207M

03-07 Non-Powertrain

Discussion of Accessories, Interior and Exterior modifications, and everything else not power related.
366K128M1
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128M

03-07 Performance Parts Discussion

Discussion of Performance Parts For the 3rd Gen Trucks ...NO ADVERTISING
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2003 & Early 2004 Only Discussion

General Discussion for the Early (2003 and 2004) Common Rail ...NO ADVERTISING
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1998.5-2002 2nd Gen Dodge 5.9L 24V CumminsThe VP44 5.9s

98.5-02 General Discussion

General Chit Chat About the 98.5-02 24V
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5.9M

98.5-02 Powertrain

Discussion on what directly makes the truck move: Engine, Transmission, Driveshaft, Differentials and Axles
507K151M
507K
151M

98.5-02 Non-Powertrain

Discussion of Accessories, Interior and Exterior modifications, and everything else not power related.
295K91M1
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91M

98.5-02 Performance Parts Discussion

Discussion of Performance Parts For the 98-02 Trucks No Advertising ...NO ADVERTISING
417K85M
417K
85M

98.5-02 24V P-Pump Conversion

Discussion of converting 24V trucks from the VP44 stock pump to a P-Pump powered 24V No Advertising ...NO ADVERTISING
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23K
7.4M
1994-1998.0 2nd Gen Dodge 5.9L 12V CumminsThe P7100 5.9s

94-98 General Discussion

General Chit Chat about the 94-98 12V
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5.4M

94-98 Powertrain

Discussion on what directly makes the truck move: Engine, Transmission, Driveshaft, Differentials and Axles
254K101M
254K
101M

94-98 Non-Powertrain

Discussion of Accessories, Interior and Exterior modifications, and everything else not power related.
118K45M1
118K
45M

94-98 Performance Parts Discussion

Discussion of Performance Parts For the 94-98 Trucks No Advertising ...NO ADVERTISING
134K52M
134K
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1989-1993 1st Gen Dodge 5.9L 12V CumminsVE pump 5.9s

89-93 General Discussion

General Chit Chat about the 89-93 12V
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25K
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89-93 Powertrain

Discussion on what directly makes the truck move: Engine, Transmission, Driveshaft, Differentials and Axles
141K50M
141K
50M

89-93 Non-Powertrain

Discussion of Accessories, Interior and Exterior modifications, and everything else not power related.
111K43M1
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43M

89-93 Performance Parts Discussion

Discussion of Performance Parts For the 1st Gen Trucks No Advertising ...NO ADVERTISING
78K24M
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Other Non-Dodge/Ram Cummins ApplicationsIf your Cummins is in an HD truck, RV, Boat, etc, then this is your section!

Commercial On Road Cummins Engine Discussion

If your engine is in a commercial truck or school bus, this is your home.
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RV and Marine Cummins Engine Discussion

If you have a boat or motor home with a Cummins, this is your home.
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Industrial Cummins Engine Discussion

If your Cummins is in agricultural, mining, or other industrial equipment, this is your home.
11721K
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Conversions - ShopTalk - Tools&Boxes - FabricationNO ADVERTISING Discussion of the Cummins Conversions and Fabrication Needed to Complete. Talk about and show off your Tools - Tool Boxes & Shops. Show off your General Fabrication Projects

12v Conversion Builds and Shop Talk

Discussion of installing a Cummins 12valve into whatever you want, along with all that is needed to make it function, including the fabrication to make it happen
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29K
9.2M

24v & CR Conversion Builds and Shop Talk

Discussion of installing a Cummins 24valve or a Common Rail into whatever you want, along with all that is needed to make it function, including the fabrication to make it happen.
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2M

4BT Conversion Builds and Shop Talk

Discussion of installing a Cummins 4bt into whatever you want, along with all that is needed to make it function, including the fabrication to make it happen
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2.1M

Other Cummins Engine Conversions and Shop Talk

Discussion of installing a Cummins (not listed above) into whatever you want, along with all that is needed to make it function, including the fabrication to make it happen
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General Fabrication, Shop Talk

Discussion of your fabrication projects and Shop talk not related to conversions above
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586
155K

Tools, Toolboxs & Shop Dreams

Discussion of your Tools, the Toolboxes, and your Shops. Or just your dreams about them.
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General Common Conversion FAQ & Tech

Discussion of common techniques used to complete Conversions and other How-To things.
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General Forums

911 Urgent Situations Archive

Old Emergency Forum. Post new urgent situations in the section for your truck.
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14M

General Diesel Discussion

Discuss General Topics related to the Cummins , Dodge Rams , Other Diesels Ect....NO ADVERTISING
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181K
46M

Detailing

Cleaning, waxing, buffing ect
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Tires & Wheels Forum Archive

Old Tire and Wheel Forum. Please see specific generation non-powertrain sections for detailed tires and wheels discussions.
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81K
37M

Auto Body

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8.2M

Suspension Discussion

Please look here for all of your suspension related questions or ideas for all generations!... NO ADVERTISING
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Specialty Forums

Show Time!

Our Personal Video Gallery & Other Video Links, Discussion, Support, Promotion, ect...
131K45M
131K
45M

Towing & Hauling

Discussion of Towing & Hauling Habits
66K20M
66K
20M

Accessories & Installations

Exterior, Interior & Electrical Accessories help
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Electrical & Wiring

A place to discuss Electrical & Wiring issues.
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C&C / DRW

Discussion of the Cab & Chassis and Dual Rear Wheel trucks.
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7M
Technical Articles - Writeups - Guides Section

AlfaOBD

Discussions about the AlfaOBD software.
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1.2M

General Tech Articles

Common Technical articles/writeups pretaining to all vintages of our beloved Dodge/Cummins trucks...NO ADVERTISING
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4th Gen Tech Articles

Tech Articles for the 6.7L 4th Gen Dodge Cummins Diesel...NO ADVERTISING
1.3K837K
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3rd Gen 6.7L Tech Articles

Tech Articles for the 6.7L Dodge Cummins Diesel...NO ADVERTISING
8162.2M
816
2.2M

3rd Gen Tech Articles

Tech Articles for the 5.9L 3rd Gen Dodge Cummins Diesel...NO ADVERTISING
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1.8K
4.4M

94-98 Tech Articles

Tech Articles for the 94-98 12V Dodge Cummins Diesel...NO ADVERTISING
1.9K6.9M5
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6.9M

89-93 Tech Articles

Tech Articles for the 89-93 12V Dodge Cummins Diesel...NO ADVERTISING
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858
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Tech Article Submission

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750K
MarketplaceMember for at least 10 days with a minimum of 20 posts required to access

General Classifieds

Miscellaneous buy, sell, trade.
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61
81K

Towing & Hauling / RV - FOR SALE

Items that would pertain to RV's, Towing, Hauling
89.6K
8
9.6K

Tires and Wheels - FOR SALE

For Sale: All Items related to Wheels & Tires for Dodge Diesel Trucks.
2276K
22
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Free To Good Home

Just looking to get rid of an item? Post the free items in here!
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9
12K

Great Deals

Have you found a Great Deal? Share and find discounts, sales, and deals found online. (No Commercial, Vendor, or Private Party posting.)
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60K
Vendor Member SectionWant to Grow Your Business? Learn more about becoming a Supporting or Premium Vendor

Vendor Spotlight! Great Deals for Members

Our vendors not only help support our community, but they also offer amazing deals to our members. Check this forum often for all the specials, deals, and announcements.
13K3.9M2
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3.9M

Glacier Diesel Power

1.6K551K
1.6K
551K

Kernersville CDJR

Kernersville Chrysler Dodge Jeep ram is the Alpha Ram Dealer for 10th year in a row. Great Selection, Great Prices, Great Trade-In value for your vehicles needs. Serving not just North Carolina but the whole east coast including Florida, Georgia, South Carolina, Virginia, Washington DC, Maryland, Delaware, Pennsylvania, New York, New Jersey and all. Thank you, to all our customers for making us #1 on Southeast and #2 in United states.
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0
0
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DDP Motorsports

Welcome to DDP Motorsports! We are your one stop shop for everything aftermarket, performance and off-road. We are a family ran business that takes pride in customer service. We put our customers first, no matter what. When you buy from us you are not only getting your favorite products, you are also getting the best customer service out there! If any problems arise, your problems immediately become our own and we will do whatever it takes to get you taken care of.
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642
266K

ATS Diesel Performance

Allison Conversion, VFR turbos, Pulseflow Manifolds, Aurora Turbos, New VNT turbos, Billet Parts
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17K

Bullet Proof Diesel

3115K
31
15K

CARiD.com

536241K
536
241K

Chrysler Warranty Direct

179.4K
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HP Tuners

69.6K
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PacBrake

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Strictly Diesel

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Forum Support
Community Hall

Cummins Forum News

News and CF Staff Updates to the Members. Plans, site changes, things to look forward to, etc. Only staff may start new threads.
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Diesel Polls

Cummins Forum Official Polls
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  1. Got new battery’s, cleaned up the post and terminals. The passenger side battery is the one thats smoking from the positive terminal…. I had someone watching when I started the truck and they noticed it smoking and the two wires were getting hot. The smoke came on the left side with that bare...
    10525Big Lar replied
  2. First, how do you torque the six nuts that join the transfer case (NP241DHD) to the transmission (NV4500) when there’s no room for a torque wrench? Second, what should the torque on those six nuts be? I’ve heard anywhere from 24 ft. lbs. to 33 ft. lbs.
  3. Anyone running a ZF5 s5-42 diesel with a 12v? Looking for and can find zf5 42 4.14 (close ratio) 2wd’s locally, but no 47’s in the same. Trying to find out if it’s necessary to find a 47 or if a 42 would hold up behind a VE 12v. Appreciatively Sam
    6133Stpackard replied
  4. So Cummins went back to the cast iron block for 2025. The research I could find indicates the CGI block was weak in the main bearing areas and was causing some engine failures. How common were the failures? I was considering getting a leftover 2024, but I like the ZF trans. I am usually...
    111.8Kharryn replied