Updated
| Feature | Fleece Performance - 94-02 HX35 63mm FMW Holset Cheetah Turbocharger (FPE-HX3… | 5494878RX 6.7 Cummins Turbo Actuator Compatible with Dodge Ram 2500 3500 4500… |
|---|---|---|
| Year Coverage | 1994-2002 RAM 2500 | — |
| Warranty | Manufacturer (per listing) | — |
| Core Charge | None required | — |
| See the Listing | See the Listing |
Different Ram Decades, Different Cummins Engines
Both products serve the Dodge Ram pickup chassis but on completely different decades and engine families. The Fleece Cheetah is 1994-2002 Ram 5.9L Cummins; the WOLLAHS 5494878RX is 2013-2018 Ram 6.7L Cummins.
The Fleece Cheetah upgrade callout:
Fleece HX35 Cheetah: 1994-2002 Ram 5.9L Performance Upgrade
The Fleece Performance HX35 Cheetah is the 1994-2002 Dodge Ram 5.9L Cummins performance upgrade on the Holset HX35 frame. The 63mm FMW compressor wheel re-rates the OE HX35 frame for aftermarket fueling envelopes.
The Cheetah HX35 rating:
The OEM-function preservation:
WOLLAHS 5494878RX: 2013-2018 Ram 6.7L Actuator
The WOLLAHS 5494878RX is the actuator-only Cummins HE300VG / HE351VE replacement on the 2013-2018 Ram 2500 / 3500 / 4500 / 5500 chassis. The kit replaces only the electronic VGT actuator on the existing turbo without removing the turbo itself.
The WOLLAHS bundled-tool line:
Rebuilder-Tier Context Across Cummins Decades
Different Cummins decade, different rebuilder-tier anchor. The Cheetah occupies the rebuilder-tier institutional level on the 1994-2002 Ram side; the WOLLAHS 5494878RX is entry-tier on the 2013-2018 Ram side.
For the 1994-2002 Ram 5.9L Cummins side, the Fleece Performance Cheetah carries documented 31-review density at 4.4 / 5 on Thoroughbred Diesel and similar institutional review depth across the broader Dodge Ram aftermarket build community. Rebuilder-tier alternatives on the same chassis include BD Diesel HX35 Stock Replacement, Industrial Injection HX35 specialty, and the original Holset HX35 OEM reman programs.
For the 2013-2018 Ram 6.7L Cummins side, the WOLLAHS 5494878RX is entry-tier. Rebuilder-tier alternatives include Geno\'s Garage / City Diesel actuators with documented 60,000-mile owner reports, BD Diesel HE351VE upgrades, and Fleece Performance HE300VG / HE351VE Cheetah variants at the high-three-figure to low-four-figure range. The r/Cummins community consistently routes 200k+ mile Ram chassis to complete-turbo replacement rather than actuator-only repair.
If You\'re Coming From The 1994-2002 Ram Side
If you landed on the Fleece HX35 Cheetah listing first, the WOLLAHS 5494878RX is not the cross-shop on your chassis. The WOLLAHS actuator is a 2013-2018 Ram 6.7L part — different engine, different chassis decade, different turbo frame entirely. The relevant 1994-2002 Ram 5.9L Cummins cross-shop runs through the BD Diesel HX35 Stock Replacement line, Industrial Injection HX35 alternatives, or other Fleece Performance Cheetah variants on the same chassis at the upgrade tier.
If You\'re Coming From The 2013-2018 Ram Side
If you landed on the WOLLAHS 5494878RX listing first, the Fleece HX35 Cheetah is not the cross-shop on your chassis. The Cheetah is a 1994-2002 Ram 5.9L Cummins part — different engine generation, different turbo frame, different chassis decade. The relevant 2013-2018 Ram 6.7L Cummins cross-shop runs through the actuator-vs-cartridge-vs-complete diagnostic decision tree: the WOLLAHS or B.ZSSY 5494878RX actuator at sub-200k mileage, the Holset HE351VE Cartridge CHRA when housings pass inspection, the ASDPI HE351VE / HE300VG or Fleece Performance Cheetah HE300VG variant complete turbos above 200k miles. Note that Fleece does manufacture HE300VG / HE351VE Cheetah variants for the 2013-2017 Ram chassis under different part numbers — those are the equivalent rebuilder-tier upgrade path on the 6.7L generation, distinct from the 1994-2002 HX35 Cheetah covered by this comparison.
For underlying turbocharger engineering background, the Wikipedia turbocharger reference documents the compressor-and-turbine architecture both kits implement on their respective Cummins decades. The TSReman Turbo University service-part catalog publishes the Holset HX35 cross-reference manifest cited by the Cheetah listing and the HE300VG / HE351VE actuator chain cited by the WOLLAHS listing. The Rotomaster understanding turbochargers reference covers the rebuilder-tier diagnostic protocol across both Ram chassis generations.
Verdict: Ram Decade Selects The Part
No head-to-head winner. Different chassis decades, different Cummins engines, different turbo frames, different SKU classes.
Pick the Fleece Performance HX35 Cheetah for a 1994-2002 Dodge Ram 5.9L Cummins performance upgrade. Pick the WOLLAHS 5494878RX for a 2013-2018 Ram 6.7L electronic actuator failure. These are not interchangeable parts — they serve completely different Ram pickup generations.
1994-2002 Ram 5.9L performance upgrade:
Check Price on AmazonRam Cummins Cross-Decade Questions
- Are these two parts cross-shoppable on the same vehicle?
- No. The Fleece Performance HX35 Cheetah is a complete-turbo upgrade for the 1994-2002 Dodge Ram 5.9L Cummins on the Holset HX35 frame. The WOLLAHS 5494878RX is an actuator-only replacement for the Holset HE300VG / HE351VE turbo on the 2013-2018 Cummins 6.7L Ram. Different engine displacements (5.9L vs 6.7L), different chassis years (1994-2002 vs 2013-2018), different turbo frames (HX35 fixed-geometry vs HE300VG/HE351VE variable-geometry), different SKU classes (complete turbo vs actuator only).
- Why is the 5.9L turbo upgrade fundamentally different from the 6.7L actuator?
- The 1994-2002 5.9L Cummins runs the Holset HX35 fixed-geometry turbo without an electronic actuator — the wastegate is mechanical. The 2013-2018 6.7L Cummins runs the Holset HE300VG / HE351VE variable-geometry turbo with electronic actuator control via the U010C lost-communication code system. Different turbo engineering, different failure modes, different repair paths. The Fleece Cheetah upgrades the HX35 wheel to support 700 RWHP modifications; the WOLLAHS 5494878RX replaces the failed electronic actuator on the existing HE300VG / HE351VE turbo.
- Which is right for a 1994-2002 Ram 2500 / 3500 owner?
- The Fleece Performance HX35 Cheetah is the rebuilder-tier upgrade path for 1994-2002 Ram 2500 / 3500 owners running aftermarket fueling above the OE 5.9L Cummins envelope. The WOLLAHS 5494878RX is NOT a 1994-2002 chassis part — it serves the 2013-2018 Ram 6.7L electronic-actuator failure mode that does not exist on the 1994-2002 5.9L mechanical-wastegate chassis. Cross-shopping these is a category error on a 1994-2002 chassis; pick Fleece Cheetah for the upgrade path or BD Diesel HX35 Stock-Replacement for the OE-replacement path on 5.9L Ram.
- Which is right for a 2013-2018 Ram 2500 / 3500 owner?
- The WOLLAHS 5494878RX actuator is the entry-tier path for 2013-2018 Ram 2500 / 3500 owners with a U010C lost-communication code and sub-200,000-mile chassis mileage. The Fleece HX35 Cheetah is NOT a 2013-2018 chassis part — the 2013-2018 6.7L Cummins runs a different turbo frame family. For Ram 2013-2018 chassis above 200k miles where the complete turbo has aged out, the rebuilder-tier path runs through Fleece Performance HE300VG / HE351VE Cheetah variants or the ASDPI HE351VE / HE300VG complete turbo, not the actuator-only kits.
Use our Turbo Replacement Cost Estimator to size aftermarket spend on either Ram Cummins generation. For the broader heavy-duty diesel turbocharger context, route to the cross-engine turbocharger roundup.