SPOOLOGIC Stock Turbocharger

The SPOOLOGIC Stock H1C Turbocharger SL-100-070 is a brand-new replacement for 1989-1991 Dodge 250 350 trucks with the 5.9L Cummins 12V, including early-built 1991 non-intercooled applications. Designed to restore factory boost, throttle response, engine performance, drivability, and fuel economy, it gets your truck back to daily driving, towing, and everyday work.

Features

• Brand new, no core charge
• Direct-fit installation using factory connections
• 8+8 splitter blade cast aluminum compressor wheel
• 12-blade turbine assembly
• Upgraded journal bearings, 360° thrust bearing, and step-gap seal rings
• High-speed VSR balanced

What's Included

• 1 SPOOLOGIC Turbocharger — SL-100-070
• 1 SPOOLOGIC Turbo Installation Gasket Kit — SL-310-301

Fitment

• 1989-1991 Dodge 250 350 5.9L Cummins 12V
• Early Built 1991 Non-Intercooled

⚠️ Confirm Application Before Ordering: This turbocharger fits the non-intercooled 1989-1991 configuration. Confirm the original turbocharger and intake arrangement on 1991 trucks; the later intercooled configuration uses SL-100-071.

Compressor Wheel

• Blade design: 8+8 splitter blade
• Compressor inducer: 52 mm
• Compressor exducer: 83 mm
• Material: Cast aluminum

Turbine Shaft

• Turbine inducer: 70 mm
• Turbine exducer: 60 mm
• Turbine blade count: 12
• Material: High-nickel Inconel

Upgraded Internals

• Upgraded journal bearings
• 360° thrust bearing
• Step-gap seal rings

High-Speed VSR Balancing

The rotating assembly is high-speed VSR balanced before shipment for smooth, consistent operation.

OEM Cross-References

• Holset / Cummins: 3526739
• Holset / Cummins: 3526740

1-Year Limited Warranty

Every SPOOLOGIC turbocharger carries a one-year limited warranty against defects in materials and workmanship from the original purchase date. Coverage applies to the original purchaser with dated proof of purchase. Contact SPOOLOGIC for return authorization before shipping the turbocharger for inspection. If inspection confirms a covered defect, SPOOLOGIC will repair or replace the turbocharger at its discretion. Coverage excludes damage caused by foreign-object debris, oil starvation, contaminated or restricted oil supply or drainage, extended oil-change intervals, overboosting, overspeed, overfueling, excessive exhaust temperatures, improper installation or startup, improper tuning or repairs, or operation outside the listed application or intended operating range. Normal cosmetic wear, coating discoloration, and heat-cycling marks are not covered. Customers pay shipping to SPOOLOGIC and return shipping, whether the claim is approved or denied. Labor, diagnostics, removal, reinstallation, towing, downtime, and other related expenses are not covered. See the SPOOLOGIC Warranty Policy for complete terms and claim procedures.