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| Feature | BuyAutoParts 40-30796AN Cummins 6BT 5.9L Holset HX35 Replacement Turbocharger | 5494878RX 6.7 Cummins Turbo Actuator Compatible with Dodge Ram 2500 3500 4500… |
|---|---|---|
| Year Coverage | INDUSTRIAL GENSET | — |
| Warranty | 12-month unlimited | — |
| Core Charge | None required | — |
| See the Listing | See the Listing |
Different Cummins Engines, Different Applications
Both products serve Cummins engine families, but on different displacements and different applications. The 40-30796AN is industrial 6BT 5.9L; the WOLLAHS 5494878RX is 6.7L 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.
The OE cross-reference:
WOLLAHS 5494878RX: Cummins 6.7L Ram Actuator Only
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 actuator on the existing turbo without removing the turbo itself.
The WOLLAHS bundled-tool line:
The WOLLAHS warranty positioning:
Rebuilder-Tier Context On Both Sides
Neither the 40-30796AN nor the WOLLAHS 5494878RX sits at the rebuilder-tier institutional-quality top of its respective segment. Both are entry-tier alternatives to the rebuilder-tier specialty units that anchor the high end of the Cummins 6BT industrial and Cummins 6.7L Ram markets.
For the industrial Cummins 6BT side, the rebuilder-tier alternatives include Industrial Injection (Cummins specialty), BD Diesel industrial-spec HX35 replacements, and the Cummins reman OEM HX35 program. These carry longer institutional warranty depth and documented production history than the BuyAutoParts entry tier.
For the Cummins 6.7L Ram side, the rebuilder-tier alternatives include Geno\'s Garage / City Diesel actuators with documented 60,000-mile owner reports, BD Diesel HE351VE upgrades, and Fleece Performance HX35 / HE300VG Cheetah complete turbos. The r/Cummins community consensus routes high-mileage Ram owners above 200k miles on the original turbo to complete-turbo replacement rather than actuator-only repair.
If You\'re Coming From The Industrial 6BT Side
If you landed on the 40-30796AN listing first, the WOLLAHS 5494878RX is not the cross-shop on your industrial application. The WOLLAHS actuator is a 2013-2018 Ram pickup part — different engine displacement, different application, different chassis. 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 Cummins 6.7L Ram Side
If you landed on the WOLLAHS 5494878RX 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 Cummins 6.7L Ram cross-shop runs through the actuator-vs-cartridge-vs-complete diagnostic decision tree: the WOLLAHS standard or B.ZSSY upgrade 5494878RX actuator at sub-200k mileage, the Holset HE351VE Cartridge CHRA when housings pass inspection, the ASDPI HE351VE / HE300VG or Fleece Performance Cheetah complete turbos above 200k miles or when housings cannot be salvaged.
For underlying turbocharger engineering background, the Wikipedia turbocharger reference documents the compressor-and-turbine architecture both kits implement on their respective Cummins applications. The TSReman Turbo University service-part catalog publishes the Holset HX35 cross-reference manifest cited by the 40-30796AN listing and the Cummins HE300VG / HE351VE actuator chain cited by the WOLLAHS listing. The Rotomaster understanding turbochargers reference covers the rebuilder-tier diagnostic protocol shops should run against the failed turbo before ordering either kit — the same diagnostic discipline applies on industrial 6BT engine beds and 6.7L Ram pickup chassis even though the parts are different.
Verdict: Cummins Engine + Application Selects The Part
No head-to-head winner. Different Cummins engine displacements, different applications, different SKU classes. Pick by the engine and application on the failed equipment.
Pick the 40-30796AN for an industrial Cummins 6BT 5.9L application — industrial generator, marine main, fleet stationary equipment — on the Holset HX35 chain. Pick the WOLLAHS 5494878RX for a 2013-2018 Ram 2500/3500/4500/5500 with the Cummins ISB 6.7L engine and a U010C lost-communication code. Cross-stock both only for fleet shops running both industrial Cummins 6BT and 2013-2018 Cummins 6.7L Ram inventory. Neither pick matches rebuilder-tier institutional density on its respective Cummins engine.
2013-2018 Cummins 6.7L Ram actuator path:
Check Price on AmazonCummins Cross-Cohort Decision Questions
- Are these two parts cross-shoppable on the same vehicle?
- No. The 40-30796AN is the BuyAutoParts complete-turbo replacement for the Cummins 6BT 5.9L engine in industrial applications (industrial generators, marine main, fleet stationary equipment) on the Holset HX35 frame — the listing explicitly excludes Dodge Ram pickup applications. The WOLLAHS 5494878RX is the actuator-only Cummins HE300VG / HE351VE replacement for the 6.7L ISB engine in 2013-2018 Ram 2500/3500/4500/5500 pickups and Cab Chassis trucks. Different engine displacements, different applications (industrial fixed-mount vs over-the-road pickup), different SKU classes.
- Why does the 40-30796AN exclude Dodge Ram pickups?
- The Cummins 6BT in the Dodge Ram pickup chassis (1989-1998 12-valve, 1998.5-2002 24-valve) uses a different Holset HX35 variant with chassis-specific exhaust manifold and downpipe geometry compared to the industrial 6BT. The 40-30796AN is engineered for the industrial 6BT fixed-mount engine bed with stationary manifolds. For Dodge Ram owners on the 5.9L Cummins, the cross-shop is the rebuilder-tier Fleece Performance Cheetah HX35 for 1994-2002 chassis or BD Diesel Stock-Replacement HX35 for the same chassis years.
- Are both parts on the same Holset family?
- Different Holset frames. The 40-30796AN is on the Holset HX35 (5.9L Cummins 6BT industrial) — replaces OE chain 3537132 through 3537137. The WOLLAHS 5494878RX is the actuator for the Holset HE300VG and HE351VE variable-geometry turbochargers (6.7L Cummins ISB) — replaces 30+ OE part numbers in the 3787604 / 3781632 / 5601240NX / 3794756 / 3779986 chain. The HX35 is a fixed-geometry frame; the HE300VG / HE351VE are variable-geometry frames. Different engineering, different sizing, different replacement protocols.
- Which is right for a Ram 2500 / 3500 owner with a Cummins 6.7L?
- The WOLLAHS 5494878RX, but only if the diagnostic codes point at the actuator specifically (U010C lost-communication code) and the chassis is at sub-200,000-mile mileage on the original turbo. The 40-30796AN is not a Ram 6.7L pickup part — it is the Cummins 6BT industrial-only SKU. For Ram owners at higher mileage above 200,000 miles, the rebuilder-tier complete-turbo alternatives (Fleece Performance HE300VG Cheetah, BD Diesel HE351VE upgrade, ASDPI HE351VE / HE300VG complete) are the structurally better targets when the cartridge bearing, VGT vanes, and wastegate-pivot wear have caught up to the actuator failure.
Use our Turbo Replacement Cost Estimator to size aftermarket spend on either Cummins engine family. For the broader heavy-duty diesel turbocharger context, route to the cross-engine turbocharger roundup.