The SPOOLOGIC SL-100-083 is a brand new, direct drop-in Stock Plus performance turbocharger for 2004.5-2007 Dodge Ram 2500 and 3500 trucks with the 5.9L 24-Valve common rail Cummins built with the electronic wastegate turbocharger. Built on the Holset HE351CW platform, upgraded with a billet aluminum compressor wheel, a larger turbine, a ceramic-coated hot side, and your choice of compressor housing finish.

This is the no-tuning, no-headache upgrade for the 04.5-07 common rail owner who wants a little more out of the truck without touching the ECM. The billet compressor wheel and matched larger turbine are sized to work inside the factory calibration’s airflow window, so it runs on the factory tune with no supporting modifications required. Expect roughly 20-30 RWHP and 10-15 lb-ft of torque over a healthy factory turbo.

Which Turbo Does Your Truck Have?

2003-2007 5.9L Cummins common rail trucks came with one of two different factory turbochargers, and the difference is easy to spot once you know what to look for:

• 2004.5 through 2007 trucks (mid-2004 and later) — electronic wastegate control solenoid. The wastegate actuator on the turbo has a wiring connector plugged into it — the ECM actively controls boost. This is the SL-100-083 fitment.
• 2003 through early 2004 trucks — mechanical wastegate. The wastegate actuator has no wiring connector. If your truck has this turbo, you need the SL-100-081 Stock Plus instead.

How to check in 30 seconds: Open the hood, look at the wastegate actuator on the factory turbo. Wiring connector plugged in? This SL-100-083 is your turbo. No wiring connector? You need SL-100-081.

60/86/90.5mm Billet Compressor Wheel

The SL-100-083 uses a 5-axis CNC-machined forged billet aluminum compressor wheel with a 7+7 splitter blade design. Billet aluminum is stronger and lighter than the factory cast wheel — lower inertia spools faster, and the tighter machined blade profile moves air more efficiently. Capped with a 90.5mm extended-tip exducer for additional airflow on the back side. Sized to stay inside the factory ECM’s airflow window so no tuning is required.

• Inducer: 60mm
• Exducer: 86mm base / 90.5mm extended-tip outer diameter
• Blade design: 7+7 splitter blade
• Material: 5-axis CNC-machined forged billet aluminum

76/64mm Turbine Wheel

Larger than the factory turbine on both sides to keep up with the airflow gains on the cold side. The 10-blade design is sized to flow more exhaust mass through the turbine housing while maintaining proper drive pressure and clean spool on the factory tune.

• Turbine inducer: 76mm
• Turbine exducer: 64mm
• Blade count: 10

Ceramic Coated Turbine Housing & Center Section

SPOOLOGIC ceramic coats both the turbine housing and the center section (CHRA) on the SL-100-083. This isn’t high-temp paint — it’s a true thermal barrier rated for the 1,600°F+ surface temperatures a diesel turbine sees under sustained load.

• Drops turbine housing surface temps 33-50% — less radiant heat dumped into the engine bay, protecting wiring harnesses, oil lines, and hoses from long-term heat damage
• Reduces post-shutdown heat soak into the CHRA and bearing oil — interrupts the radiant feedback loop that bakes oil onto the bearing journals after shutdown
• Retains exhaust energy in the gas stream — keeps heat driving the turbine wheel instead of soaking into the housing
• Corrosion and thermal-fatigue resistant — protects the housing and CHRA from the scaling and pitting cast iron sees over years of heat cycling

Upgraded Internals — Standard

Every SPOOLOGIC turbo is assembled with upgraded internal components that go beyond a basic factory-style replacement:

• Extreme duty journal bearings — premium bronze-alloy bearings machined to tighter tolerances with improved oil groove geometry, maintaining the precise oil film that keeps the turbo shaft centered at 100,000+ RPM — even under higher heat and shaft loads
• 360-degree thrust bearing — added strength and load capacity over the factory 270-degree bearing, better at handling boost-driven thrust loads
• Step gap seal rings — improved sealing performance, less blow-by past the CHRA
• High-speed VSR balancing — smooth, dependable operation and longer bearing life

Choose Your Finish

Use the dropdown above to select your compressor housing finish. The 60/86/90.5mm billet wheel, 76/64mm turbine, ceramic coating, and upgraded internals are standard on every variation.

Compressor Housing Finish

• Raw — bead-blasted satin natural aluminum finish; no coating, just clean bare metal
• Black — deep gloss black powder coat, baked-on and won’t chip or fade from heat cycling
• Red — high-gloss red powder coat, baked-on and won’t chip or fade from heat cycling

What’s Included

• 1 SPOOLOGIC Stock Plus HE351CW Cummins turbocharger with electronic wastegate control solenoid — brand new, VSR balanced, ceramic and powder coated
• 1 turbo flange gasket
• 1 turbo drain line gasket
• Turbo drain line O-rings
• 1 oil feed line with fittings and O-rings
• 1 oil drain line

Features

• Direct drop-in fit for 2004.5-2007 5.9L 24-Valve common rail Cummins trucks with the electronic wastegate turbo
• Built on the Holset HE351CW platform — same as factory
• 60/86/90.5mm 7+7 billet aluminum compressor wheel
• 76/64mm 10-blade turbine wheel
• Adds approximately 20-30 RWHP and 10-15 lb-ft of torque over factory — no tuning required
• Ceramic coated turbine housing and center section — full thermal barrier on the hot side
• Raw, black, or red compressor housing finish
• Extreme duty journal bearings, 360-degree thrust bearing, step gap seal rings, VSR balanced
• Complete install kit included — gaskets, O-rings, oil feed line, oil drain line
• Direct bolt-in — runs on the factory tune
• No core charge — ever
• Built brand new, never remanufactured

Fits 2004.5-2007 5.9L Cummins

• 2004.5 – 2007 Dodge Ram 2500 / 3500 5.9L Cummins
• Fits 2004 Model Trucks Built After 01/01/04

Turbo Applications

• Replaces factory Holset HE351CW (2004.5-2007 5.9L 24-Valve common rail Cummins, electronic wastegate) — Stock Plus billet upgrade
• 2003 through early 2004 trucks with the mechanical wastegate use SL-100-081 instead

Replaces Factory OEM Part Numbers

• 05143256AA
• 4036836
• 4036836H
• BD1045767

⚠ Not For Sale In California

Emissions Notice: Not CARB approved. Not legal for sale or use in the state of California.

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, coating discoloration, or normal heat cycling marks. Warranty does not cover labor, shipping, towing, downtime, or any other costs outside the turbocharger itself.