Post Your Successful Diesel Mods At Dieseldatabase

Have you completed a successful mod on your diesel truck? and did you take pictures and discovered tips that might help others? Your post is welcome here. All you have to do is register on this site. Then contact us via the the contact form on the ABOUT page (see menu), letting us know you […]

Dodge Cummins HTT Manifold

After much reading of folks having troubles with the OEM manifold cracking and the bolts coming loose from expansion and contraction I decided it was time for me to go to a 3 piece manifold, I opted for the unit from High Tech Turbo and purchased one from my friend Lazer Bob in Colorado, The […]

Dodge Diesel Injector Comparisons

By popular demand our customers have asked us to show a comparison between the Bosch 275hp RV injector and the Diesel Dynamics True Torque II injector series. This graph shows typical gains with the 275hp RV injectors and DD stages 1,2, and 3. This is a graph of a 99 Cummins Ram with Std Transmission. […]

Dodge Cummins Under Hood Mods

Click picture for a full size view. Click on the product titles below for a link to a dealer OuterWears FAQs (Questions About Prefilters) Why do I need a Pre-Filter? How does a Pre-Filter work? Will adding a Pre-filter reduce my airflow or horsepower? Will the Pre-Filters work on paper filters? How much dirt will […]

12V Cummins Thermostat Replacement

Symptom/Condition: The vehicle may not warm completely, especially in cold ambient temperatures. This condition may be due to a thermostat that is stuck in the partial open position by debris in the cooling system. NOTE: THE COOLING SYSTEM USED ON THE CUMMINS DIESEL ENGINE EQUIPPED VEHICLES PROVIDES THE CAPACITY AND PROTECTION OF THE HIGHER GVWR […]

Vulcan Fittings

This is a comparison between a Vulcan fitting and your stock banjo set up. The Vulcan Fittings are CNC Stainless Steal and are avalible with a tap in them for running a Fuel Pressure gauge. Vulcans Fitting replace The Stock Banjo’s at the following locations : VP44 inlet Fuel Filter Housing Inlet Fuel Filter Housing […]

Dodge Diesel Drive Belt Diagram

Location Description 1 Water Pump 2 Belt 3 Tensioner 4 3/8 Hole For Working Tensioner 5 Mount Bolt [thanks to BH used with permission]

RV Summer Driving Tips

Summer is here and we all like to get away. But just getting in the RV and driving off can sometimes have its problems. Here are a couple suggestions to give your machine just a little bit more pickup and help remedy your overheating problems.   If you don't have one of those quarter million […]

Mixing Gasoline with Diesel Caution

At one time information was released suggesting that a small amount of gasoline mixed with diesel fuel for use in cold weather was an acceptable practice. This information was eventually retracted due to conditions that may result from such a mixture. First and foremost is a safety factor. The gasoline fumes from gasoline are very […]

Old 12v Cummins Boost Guage Installation

1. A hole must be drilled and tapped into the intake crossover pipe for a boost source. 2. Remove the hose from the intake crossover pipe and push a rag well into the pipe past the point to be drilled and tapped. This will prevent chips from entering the engine. 3. Drill through the back […]

1999 24V Lift Pump Replacement

Procedures for a 1999 Ram NOTE: You may be able to improve this but this is exactly what we did and changed two pumps in less that two hours) TOOLS: 17 mm wrench & socket, 10 mm wrench & socket, 7/16 socket, 1/2 inch socket. Lay a non-conducting material over the battery posts (fender cover, […]

Stewart Warner B750 Mechanical Gauge Install Sheet

Click the link below for the pdf version of Stewart Warner B750 Mechanical Gauge Install Sheet Stewart Warner B750 Mechanical Gauge Install Sheet [thanks to Stewart Warner used with permission]

The Dodge Diesel Mystery Switch

These instructions for the mystery switch are for the 47RH not the 47RE. The later transmission control has a relay that has to be removed and the load pins jumped. The ’96 and later also have more than one orange with black tracer wires on the PCM. There are 2 (two) options you have between […]

Cummins Motor Parts and Prices

Click the link below for the pdf version of Cummins Motor Parts and Prices Cummins Motor Parts and Prices

NXD Stacker Nitrous System

SO you're on the fence about the whole Nitrous issue. Well what if there was a product out there that was mild enough for the daily driver, wouldn't break the bank to purchase and easy enough even the most novice shade tree mechanic could install it? Well here ya go – The guys at Nitrous […]