The SPOOLOGIC SL-100-074 is a brand new, direct drop-in stock replacement turbocharger for 1998.5-2002 Dodge Ram 2500 and 3500 trucks with the 5.9L 24-Valve Cummins. Built on the Holset HX35 platform — the same wastegated, fixed-geometry architecture as your factory turbo — matched to factory specifications so the truck runs the way it did the day it left the dealer.

This is a true stock replacement, not a performance upgrade. It’s the right turbo for daily drivers, work and fleet trucks, and restoration builds where the goal is dependable factory performance — no tuning, no supporting mods, just a turbo that bolts on and runs.

52/83mm Compressor Wheel

Factory-spec 8+8 splitter blade compressor wheel sized to OEM specifications and matched to the factory turbine and housing geometry for stock boost response and stock power output.

• Inducer: 52mm
• Exducer: 83mm
• Blade design: 8+8 splitter blade

70/60mm Turbine Wheel

Factory-spec 12-blade turbine wheel matched to the compressor and housing geometry for proper spool, factory boost response, and factory drive pressure.

• Turbine inducer: 70mm
• Turbine exducer: 60mm
• Blade count: 12

Wastegated, Fixed-Geometry Architecture

The 24-Valve carried the wastegated HX35 forward from the 12-Valve trucks. The SL-100-074 matches that same wastegated, fixed-geometry design — same compressor and turbine sizing, same housing geometry. Bolt it on and the truck goes back to running factory power and factory boost.

What’s Included

• 1 SPOOLOGIC Stock HX35 Cummins turbocharger — brand new, VSR balanced
• 1 turbo flange gasket
• 1 oil drain gasket

Features

• Direct drop-in fit for 1998.5-2002 5.9L 24-Valve Cummins trucks
• Built on the Holset HX35 platform — same as factory
• 52/83mm 8+8 splitter blade compressor wheel
• 70/60mm 12-blade turbine wheel
• Wastegated, fixed-geometry architecture — matches OEM
• Supports factory horsepower and torque — no tuning required
• Extreme duty journal bearings, 360-degree thrust bearing, step gap seal rings, VSR balanced
• No core charge — ever
• Built brand new, never remanufactured

Fits 1998.5-2002 5.9L Cummins 24-Valve

• 1998.5 – 2002 Dodge Ram 2500 / 3500 5.9L Cummins 24-Valve

Turbo Applications

• Replaces factory Holset HX35 (1998.5-2002 5.9L 24-Valve Cummins)

Replaces Factory OEM Part Numbers

• 3592766
• 3592767
• 5017509AA
• R5017509AA

1-Year Limited Warranty

Every SPOOLOGIC turbocharger is covered by a 1-Year Limited Warranty against defects in materials and workmanship from the date of purchase. Warranty coverage requires that the unit first be shipped back to SPOOLOGIC for inspection. If SPOOLOGIC determines the failure was caused by a defect in materials or workmanship, the turbocharger will be repaired or replaced at SPOOLOGIC’s discretion. Warranty does not cover damage from foreign object debris, oil starvation, contaminated oil, extended oil change intervals, over-boosting, over-fueling, improper installation, use outside the listed fitment, cosmetic wear, or normal heat cycling marks. Warranty does not cover labor, shipping, towing, downtime, or any other costs outside the turbocharger itself.