When a turbo fails on an excavator or loader at a job site, the clock runs at four figures a day in idle iron. Boost Lab, Inc. rebuilds the turbochargers across the construction fleet: Caterpillar C7, C7.1, C9, C13 and C15 powered excavators, loaders and dozers, Komatsu PC-series with Cummins and Komatsu engines, Volvo CE, Hitachi ZX, John Deere construction, and Kobelco. The hardware is Garrett, BorgWarner, Holset and IHI, the same families we rebuild across our entire catalog. Nationwide ship-in service with fleet and dealer programs.
The same handful of turbo families cover hundreds of machine models. Find your engine, not your machine.
The Cat C7 powers 320-class through 336-class excavators, 950-class loaders, forestry equipment and more. Pre-ACERT machines run the BorgWarner S200AG under Cat 178482 (crosses 0R1795, 10R0580). The C7 ACERT added a VNT mechanism that sticks with soot, exactly like the on-highway version. Tier 4 C7.1 machines move to the Garrett GT2560S under Cat 479-5828 / 461-1109 / 457-3636. All rebuildable, VNT mechanism service included.
The workhorse of the 330D/336D class. The BorgWarner S310CG under Cat 274-9989 (crosses 20R-2971, 13809880113) is the standard unit. Same rebuild process as every BorgWarner S-series on our bench, with the same VGT considerations on ACERT machines.
Larger Cat equipment shares engine families with on-highway trucks: C13 and C15 ACERT twins (covered in depth on our Heavy Truck reference), and the C18 running a Garrett GT5518 in dozer and large loader applications. If you service Cat trucks and Cat iron, it is the same bench.
Komatsu excavators run Cummins-based power with Holset turbos on the PC200 through PC300 class: the PC200-7 uses an HX35 under Komatsu 6738-81-8090 (crosses 4038475, 4089711). Older PC200-5 and PC200-6 models run Garrett T04E and Holset T300 hardware. PC300 and PC400 class move up to HX40 and larger frames. All Holset, all rebuildable.
Volvo CE excavators run Volvo D-series engines with Holset and BorgWarner turbos; Hitachi ZX machines use Isuzu power with IHI and Garrett units. Both share turbo families with their on-highway siblings. Tag photos identify the exact unit.
John Deere construction equipment shares PowerTech engines and Schwitzer/BorgWarner turbos with the ag line, covered in depth on our Agricultural reference. Kobelco SK excavators run Hino and Mitsubishi power with MHI and IHI turbo families.
A turbo failure on a 330-class excavator idles a machine billing $1,500 to $3,000 per day. Dealer lead times for complete assemblies can run weeks. Rebuilding your core sidesteps the sourcing wait entirely, and the hardware, Garrett, BorgWarner, Holset, IHI, has deep parts support across every engine family. Our dealer program covers wholesale pricing and priority turnaround for equipment shops and fleet operations managing multiple machines.
Verified Cat, Komatsu and turbo manufacturer numbers. Construction turbos are serial-specific: always confirm against your engine serial. Search by any number.
| Turbo PN | Model | OEM PN | Application | Notes |
|---|---|---|---|---|
| 178482 (BorgWarner) | S200AG | Cat 0R1795, 10R0580 | Cat C7 pre-ACERT excavators, loaders, trucks | The high-volume Cat C7 unit |
| 13809880113 (BorgWarner) | S310CG | Cat 274-9989, 20R-2971 | Cat C9 / C9 ACERT, 330D/336D class | Wastegated S310 frame |
| 479-5828 / 461-1109 / 457-3636 | Garrett GT2560S | Cat 556-7936, 629-6309 | Cat C7.1 Tier 4 (330F, 336GC, 329FL, 950GC) | VNT mechanism; multiple Garrett PN crosses |
| 10R-2407 / 10R-1887 | Garrett (ACERT HP) | Cat 233-1589, 251-4818 | Cat C15 ACERT HP turbo, construction + truck | See our Heavy Truck reference for full cross family |
| 10R-1888 | Cat ACERT LP | Cat 232-1805, 291-3997 | Cat C15 ACERT LP turbo | Rebuilt as a matched set with the HP unit |
| 6738-81-8090 | Holset HX35 | Komatsu, crosses 4038475, 4089711 | Komatsu PC200-7, PC200LC-7, PC210LC-7 (SAA6D102E-2) | Also 6738-81-8091, -8092 service revisions |
| 6207-81-8331 | Holset T300 | Komatsu | Komatsu PC200-6, PC210-6 (S6D95L) | Older-generation PC200 unit |
| 6151-82-8500 | HX40 family | Komatsu | Komatsu PC300-6 (S6D125) | PC300-class Holset |
| Tag-specific | IHI / Garrett by engine | Verify by tag | Hitachi ZX200 through ZX470 (Isuzu power) | Isuzu 6HK1/6WG1 powered machines |
| Tag-specific | Holset / BorgWarner | Verify by tag | Volvo CE EC excavators (Volvo D-series) | Volvo D6/D7/D13 powered machines |
| Tag-specific | MHI / Schwitzer | Verify by tag | Kobelco SK200 through SK350 | Hino and Mitsubishi powered machines |
Jobsite conditions destroy turbos in predictable ways.
Construction sites generate the worst airborne particulate of any operating environment. Poorly maintained air filtration, cracked intake boots, and unsealed filter housings sandblast compressor wheels at operating speed. Inspect the entire intake tract when installing a rebuilt unit.
Excavators and loaders idle for hours between work cycles, and operators shut down without cool-down. Oil bakes in the center section, and the next start runs coked passages. Short idle-down habits and sensible oil intervals double turbo life.
Carbon from EGR systems cements variable geometry vanes exactly like on-highway trucks: derates, limp mode, and actuator damage. Mechanism cleaning and actuator evaluation usually restore them without a full assembly.
Construction equipment runs hydraulic systems that add significant heat to the engine bay beyond what a truck sees. The turbo lives in that combined heat envelope, and center section coking arrives earlier than on equivalent truck engines.
High-hour machines with worn rings push soot and blow-by into the oil, and the turbo bearings are downstream. By the time the turbo fails, the oil was the problem. Address the oil quality and engine condition with every turbo rebuild.
Jobsite pressure to get iron running leads to fast, cheap turbo replacements that fail again. No balancing, wrong clearances, and unverified parts. Every unit we build is VSR balanced and documented.
Yes, we rebuild your core rather than sourcing a scarce assembly, which sidesteps the dealer backorder entirely. The hardware is Garrett, BorgWarner and Holset with strong parts support across every Cat engine family.
Yes. Our dealer program covers wholesale pricing, priority turnaround, and core banking for equipment shops and fleet operations. Email sales@theboostlab.com to set up an account.
Yes, including mechanism cleaning, vane inspection, and actuator evaluation. Stuck vanes and failed actuators are the dominant failure on ACERT and Tier 4 equipment, and most of the time the cartridge is healthy underneath.
Yes. Komatsu excavators running Cummins power use Holset turbos that we rebuild daily: the HX35 on PC200-class through HX40 and larger on PC300-class and up.
Start at repair.theboostlab.com. These units can be heavy: drain oil, cap openings, double-box with solid foam or band to a small pallet. Ship to Boost Lab, Inc., 37833 Pineapple Ave, Unit A, Dade City, FL 33523.