S300 single turbos, compound turbo kits, and exhaust manifolds for the 1998.5-2002 5.9L 24V Cummins with the VP44 injection pump.
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The 1998.5-2002 5.9L 24V Cummins brought a four-valve cylinder head and the electronic VP44 injection pump to the 2nd Gen Dodge Ram. These trucks respond very well to injectors and tuning, and the factory HX35 or HY35 turbo becomes the limit at around 400 RWHP. Diesel Power Source® builds single turbos, Add-A-Turbo kits, compound kits, and 24V-specific manifolds to supply the air that fuel needs.
Round-port manifolds and piping built for 1998.5-2002 trucks
The factory turbo limits power at around 400 RWHP
Single turbos and compound kits both cut exhaust heat under load
S300 turbos mount at the factory manifold location
| Fuel Level | Power (RWHP, approx.) | What It Takes |
|---|---|---|
| Stock injectors with a tune | 280-340 | Tuning alone is a significant gain on this truck. |
| 50-75 HP injectors | 340-400 | Approaching the stock turbo limit. A turbo upgrade is needed for more. |
| 100 HP injectors | 380-450 | The sweet spot for the VP44. Turbo and fuel upgrades are needed to go further. |
| 150 HP injectors | 450-550+ | An upgraded VP44 or a P-pump conversion, plus an upgraded turbo. |
| 200+ HP injectors | 550-650+ | A built VP44 or a full P-pump swap, with a large single or compound turbos. |
Figures are approximate and assume a good tune, a lift pump, and adequate air and fuel support. The VP44 is the limit on this truck: power much past 400-450 RWHP needs an upgraded pump or a P-pump conversion.
An S362 single covers stock to 450 RWHP and an S363/68 covers 375-525 RWHP, both with quick spool. An Add-A-Turbo kit is the other strong towing option.
The S366 covers 450-650 RWHP and is the most requested single for trucks that tow and want more power. Plan the pump and injectors to match.
An S362 over an S475 is the most popular compound setup for towing and daily driving. Larger pairings step up with the fuel.
A 24V with a P7100 swap has the fuel of a 2nd Gen 12V. Tell DPS, because the turbo is sized to the pump and not to the model year.
HP figures are approximate rear wheel horsepower and vary with tuning, fueling, and supporting modifications. Not sure which fits? Use the Turbo Selector or call 801-930-8404.
Shop by category: 5.9 Cummins Turbos | 5.9 Cummins Manifolds | Compound Turbo Kits | All 5.9 Cummins Parts. Other years: 1994-1998 12V and 2003-2007 common rail. Free shipping on orders over $350.
Cummins is a registered trademark of Cummins Inc. Diesel Power Source® is not affiliated with Cummins Inc.
The 24V has four valves per cylinder and the electronically controlled Bosch VP44 injection pump, where the 12V has two valves per cylinder and a mechanical pump. The 24V head has round exhaust ports and the 12V head has rectangular ports, so the exhaust manifolds are not interchangeable.
For towing and daily driving, an S362 single (stock to 450 RWHP) or an S363. For more power, the S366 (450-650 RWHP), which is the most requested single for trucks that tow. For heavy towing, an Add-A-Turbo kit or a compound kit. The S362 over an S475 is the most popular compound setup for towing and daily driving.
The factory turbo limits power at around 400 RWHP. A truck with 50-75 HP injectors and a tune is already approaching that. A DPS S300 moves more air, so the fuel burns more completely and the truck runs cooler under load.
The VP44 is the limit on these trucks. Power much past 400-450 RWHP needs an upgraded VP44 or a P-pump conversion. If your truck has a P-pump conversion, tell DPS, because the turbo is sized to the pump.
An S300 single needs a 4-inch downpipe, sold separately. Head studs are recommended above 45 PSI of boost. The factory transmission typically needs attention around 400 RWHP. Tuning is the owner's responsibility, and DPS does not sell tuners or tuning.
