Banks Power 03-07 Dodge 5.9L Ram-Air Intake System - Dry Filter
The Banks 42145-D is a Ram-Air cold air intake with a dry, washable filter for 2003-2007 Dodge Ram 2500 and 3500 pickups with the 5.9L 24-valve Cummins, covering the 235, 250, 305 and 325 hp versions of the common rail engine. Buyers are usually chasing lower exhaust gas temperatures when towing, a cleaner throttle response after a tune, or simply an end to buying paper filters.
The factory system routes air through a plastic housing and tube to the turbo compressor, with the intake air temperature (IAT) sensor mounted in the housing. The Banks kit swaps in a sealed filter housing with large side and bottom inlets, a support bracket, a new intake tube, a compressor inlet hose and a 4.50 inch inside diameter bellows that absorbs engine movement. Banks says the system flows up to 62 percent better than stock. Cooler, denser air means the turbo needs less work to make boost, so EGTs and smoke drop and mileage can improve slightly.
The dry element (Banks part 42148-D) cleans up with water and a dry filter cleaner. Since no oil is used, nothing migrates onto the IAT sensor or into the turbo inlet.
If the truck slips, flares or will not shift into overdrive under load, that is a transmission issue, not an air issue. Our 48RE slipping under load guide covers the usual causes, and extra power will only make a weak 48RE worse.
Confirm the engine is the 5.9L 24-valve common rail, which is what these model years carry. Inspect the factory compressor inlet hose for splits and look for oil in the intake tube, which can point to turbo seal wear. Check that the IAT sensor and its O-ring are in good condition, because the sensor moves to the Banks tube. Also note your transmission type; our 47RE vs 48RE guide explains how to tell the automatics in this era apart.
Listed for 2003-2007 Dodge Ram 2500 and 3500 pickups with the 5.9L Cummins. The Banks manual covers all four power ratings in this range. CARB executive orders D-161-86 and D-161-100 list the 42145 kit for 2003-2007 Dodge Ram 5.9L, and D-161-102 lists 42145-D, though the posted copy of that last order is stamped rescinded; California owners should ask us about current status. The 2007.5 and later 6.7L trucks use a different kit. If you are unsure, send us the year and VIN. Prefer an oiled element? See the 42145 oiled filter kit. Automatic transmission parts for these trucks are in our 48RE collection.
For trucks that tow, the braided 48RE cooler line kit and the Banks Monster-Ram with boost tube are common next steps, and our 48RE towing upgrades guide covers the transmission side.
| Brand | Banks Power |
| Part number | 42145-D |
| Fits | Banks Power 03-07 Dodge 5.9L Ram-Air Intake System - Dry Filter |
| Type | Short Ram Air Intakes |
| Condition | New |
| Ships | Same business day (in stock), from the USA |
| Warranty | 1-year |
No. This kit is for 2003-2007 Rams with the 5.9L 24-valve Cummins. The 6.7L trucks use a different Ram-Air kit.
Not for the basic install. Cutting one inch off the bottom of the housing with a hacksaw is only required if you add the optional Banks Super-Scoop.
The factory intake air temperature sensor moves from the stock housing into the Banks intake tube and is held with the supplied screws. Check its O-ring and keep the wiring away from exhaust heat.
Tap out loose dirt, apply a dry air filter cleaner, soak 10 minutes, rinse from the clean side out with cool or warm water and let it air dry. Banks lists 50,000-100,000 street miles between cleanings, sooner in dust.
An intake alone adds a small amount of power. If you are also adding a tuner, make sure the 48RE is healthy and the fluid is fresh, because the transmission is usually the weak link on these trucks.
