Updated
| Feature | BuyAutoParts 40-30796AN Cummins 6BT 5.9L Holset HX35 Replacement Turbocharger | Fleece Performance - 94-02 HX35 63mm FMW Holset Cheetah Turbocharger (FPE-HX3… |
|---|---|---|
| Year Coverage | INDUSTRIAL GENSET | 1994-2002 RAM 2500 |
| Warranty | 12-month unlimited | Manufacturer (per listing) |
| Core Charge | None required | None required |
| See the Listing | See the Listing |
Same Cummins 6BT, Different Chassis Classes
Both products serve the Cummins 6BT 5.9L engine but on different chassis applications. The 40-30796AN is industrial fixed-mount; the Fleece Cheetah is 1994-2002 Dodge Ram pickup.
The 40-30796AN industrial-only fence:
40-30796AN: Industrial Cummins 6BT HX35
The 40-30796AN is the BuyAutoParts industrial-only complete-turbo replacement on the Cummins 6BT 5.9L Holset HX35 frame for fixed-mount applications.
The OE cross-reference:
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 is the upgrade-tier engineering callout.
The Cheetah HX35 rating:
The OEM-function preservation:
Rebuilder-Tier Context Across The HX35 Family
Neither pick occupies the same tier in its respective Cummins 6BT segment. The HX35 frame family runs across industrial Cummins applications, 1994-2002 Dodge Ram pickup chassis, and selected commercial-truck variants — each with its own rebuilder-tier institutional anchor.
The 40-30796AN sits at the entry tier on the industrial Cummins 6BT side. Rebuilder-tier alternatives include Industrial Injection Cummins specialty, BD Diesel industrial-spec HX35 replacements, and the Cummins reman OEM HX35 program — all carry longer institutional warranty depth than the BuyAutoParts entry tier. For industrial generator-set applications running 24/7 service, the rebuilder-tier institutional density is the documented choice; for occasional-use marine main applications or fleet stationary equipment with intermittent loading, the BuyAutoParts entry tier covers the failure-mode envelope at substantially lower spend.
The Fleece HX35 Cheetah sits at the rebuilder-tier institutional level on the 1994-2002 Dodge Ram 5.9L Cummins side. With 31 documented reviews at 4.4 / 5 on Thoroughbred Diesel for the 1994-2002 Cheetah variant and 74 reviews at 4.8 / 5 for the 2013-2017 Cummins VGT Cheetah variant on Crossroad Garage, Fleece Performance carries institutional review density and production history that entry-tier alternatives (CXRacing, eBay imports) do not match on the same Dodge Ram chassis. The Cheetah upgrade carries the documented engineering footprint — proprietary 63mm FMW wheel design, 700-RWHP rating, OEM-function preservation — that anchors its rebuilder-tier positioning across the broader 5.9L Cummins aftermarket build community.
If You\'re Coming From The Industrial 6BT Side
If you landed on the 40-30796AN listing first, the Fleece HX35 Cheetah is not the cross-shop on your industrial application. The Cheetah is a 1994-2002 Cummins 5.9L Ram pickup part — different chassis class, different decade, different performance positioning. The relevant industrial Cummins 6BT cross-shop is the rebuilder-tier Industrial Injection / BD Diesel industrial-spec HX35 alternatives or the Cummins reman OEM HX35 program.
If You\'re Coming From The 1994-2002 Dodge Ram Side
If you landed on the Fleece HX35 Cheetah listing first, the 40-30796AN is not the cross-shop on your chassis. The 40-30796AN is an industrial Cummins 6BT 5.9L part with explicit Dodge Ram pickup exclusion. The relevant 1994-2002 Dodge Ram 5.9L Cummins cross-shop runs through the BD Diesel HX35 Stock Replacement line, Industrial Injection rebuilder-tier HX35 alternatives, or other Fleece Performance Cheetah variants at the same 1994-2002 chassis on the upgrade-tier path. The Cheetah ships with the rebuilder-tier engineering callouts — the proprietary 63mm Forged Milled Wheel, the 700 RWHP fueling envelope, the preserved OEM exhaust-brake function and warm-up cycle protocol — that the industrial 40-30796AN does not need for its fixed-mount engine-bed application. Cross-shop discipline on the Ram side runs through chassis-specific upgrade-tier alternatives, not industrial-spec replacements.
For underlying turbocharger engineering background, the Wikipedia turbocharger reference documents the compressor-and-turbine architecture both kits implement. The TSReman Turbo University service-part catalog publishes the Holset HX35 cross-reference manifest cited by both listings. The Rotomaster understanding turbochargers reference covers the rebuilder-tier diagnostic protocol shops should run against the failed turbo before ordering either kit.
Verdict: Chassis Class + Tier Selects The Part
No head-to-head winner. Same Cummins 6BT engine displacement, different chassis classes, different tier positioning. Pick by chassis class and target tier.
Pick the 40-30796AN for an entry-tier industrial Cummins 6BT application on the Holset HX35 chain. Pick the Fleece HX35 Cheetah for a rebuilder-tier 1994-2002 Dodge Ram 5.9L Cummins pickup performance upgrade. Cross-stock both only for fleet shops running both chassis classes. Neither pick is interchangeable on the other chassis.
1994-2002 Dodge Ram 5.9L performance upgrade:
Check Price on AmazonCummins 6BT Cross-Cohort Decision Questions
- Both are HX35 — are they interchangeable?
- No. Both turbos use the Holset HX35 frame family but on different applications: the 40-30796AN serves industrial Cummins 6BT applications (industrial generators, marine main, fleet stationary equipment), while the Fleece Performance Cheetah serves the 1994-2002 Dodge Ram pickup chassis with the 5.9L Cummins. The 40-30796AN listing explicitly excludes Dodge Ram pickup applications. The chassis-side manifold geometry differs between industrial fixed-mount applications and Ram pickup chassis — the same HX35 frame size does not mean cross-chassis interchangeability.
- What does the Fleece Cheetah 63mm FMW upgrade deliver vs the 40-30796AN baseline?
- The Fleece Cheetah ships with a proprietary 63mm Forged Milled Wheel (FMW) compressor wheel rated to support 700 RWHP modifications, while maintaining all OEM factory turbocharger functions including exhaust brake and warm-up. The 40-30796AN ships with a standard OE-spec compressor wheel sized for the industrial Cummins 6BT fueling envelope (no above-OE fueling assumed). For a 1994-2002 Dodge Ram owner running an aftermarket fueling box and injector upgrade, the Cheetah is the rebuilder-tier upgrade path. The 40-30796AN does not fit the Ram chassis at all.
- Are these both Cummins 6BT 5.9L applications?
- Yes, both serve the Cummins 6BT 5.9L engine but in different chassis classes. The 40-30796AN is for the industrial Cummins 6BT (fixed-mount engine beds, industrial generators, marine main, fleet stationary applications). The Fleece Cheetah is for the 1994-2002 Dodge Ram 2500 / 3500 pickup chassis with the 5.9L Cummins. Same engine displacement, completely different chassis applications, completely different parts. Cross-stocking both is a fleet-mix-driven decision.
- How do the warranty terms compare?
- BuyAutoParts publishes the ISO/TS 16949 manufacturing-standard framing on the 40-30796AN listing. Fleece Performance publishes rebuilder-tier institutional warranty terms via authorized dealer channels (Thoroughbred Diesel, Crossroad Garage, Summit Racing) varying by retailer but typically running 1-2 years on the Cheetah line. For the industrial Cummins 6BT side the BuyAutoParts entry tier is accessible warranty; for the 1994-2002 Dodge Ram 5.9L Cummins side Fleece Performance is the rebuilder-tier institutional brand with longer documented production history.
Use our Turbo Replacement Cost Estimator to size aftermarket spend on either Cummins 6BT application. For the broader heavy-duty diesel turbocharger context, route to the cross-engine turbocharger roundup.