T04B59 turbocharger replacement for Komatsu PC200-3 with S6D105. K18 Inconel turbine wheel, VSR balanced. OEM 465044-0261. Contact us for competitive pricing
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Heavy-duty T04B59 turbine charger for Komatsu S6D105 and S6D105-1 engines.
Built with a high-durability K18 Inconel turbine wheel and precision journal bearing assemblies to prevent structural wear.
OEM: 465044-0261 | Cross-reference: 6137-82-8200, 6137-82-8600, 465044-5261S. Fits WA300-1 loaders and PC200-3 excavators.
Volume discounts available.
The Komatsu S6D105 and S6D105-1 engines represent a legendary 6.5L inline-6 powerplant (6,490 cc) widely trusted across classic PC200-3, PC220-3 crawler excavators, WA250/WA300 wheel loaders, and heavy-duty motor graders. To maintain peak combustion efficiency and prevent exhaust black smoke under severe earthmoving cycles, the Komatsu S6D105 turbocharger (OEM 465044-0261, cross-reference 6137-82-8200, 6137-82-8600, 465044-5261S) relies on the high-performance Garrett T04B59 turbocharger system. Built with an advanced turbine wheel cast from high-temperature K18 Inconel alloy, this assembly resists thermal creep and structural deformation under continuous exhaust temperatures above 750°C. It is an essential component for high-stress infrastructure projects globally, from Indonesia excavator engine parts supply chains to Chile dumper turbocharger replacement networks supporting Komatsu loader and excavator fleet maintenance. In demanding off-road routing, common failure modes of the T04B59 heavy duty turbo include journal bearing scoring and carbon seizure inside the oil passages from immediate hot shutdowns. To mitigate these stresses, each of our turbochargers undergoes rigorous Vibration Sorting Rig (VSR) dynamic balancing at speeds up to 150,000 RPM. Rebuilders must replace the old oil feed lines, verify proper lubrication pressure, and pre-prime the bearing housing during any 465044-0261 turbo replacement to prevent dry-start friction.
| Parameter | Value |
|---|---|
| Engine Code | Komatsu S6D105 / S6D105-1 (6.49L) |
| Configuration | Inline-6 Cylinders, 12 Valves SOHC |
| Turbocharger Model | T04B59 (Garrett T04B Series) |
| Turbine Wheel Metallurgy | K18 Inconel Alloy (750°C+ rated) |
| Casing Metallurgy | Silicon-Molybdenum Ductile Cast Iron |
| Oil Seal Design | Step-Gap Dynamic Seals |
| Thrust Bearing Design | Upgraded 360° Solid Bronze |
| Balancing Standard | VSR Balanced (Up to 150,000 RPM) |
| Primary OEM Number | 465044-0261 |
| Interchange References | 465044-5261S, 6137-82-8200, 6137-82-8600, 465044-0037 |
Our Komatsu turbine and turbo catalog covers the full medium and heavy-duty inline-6 and multi-cylinder families, from the S6D95 and SAA6D102 up to the high-output S6D140 and SAA6D170 lines. Explore our complete range of Komatsu diesel engine parts by visiting our Komatsu Brand Hub.
465044-0261, Construction Machinery Engine Spares, Komatsu Turbocharger Wholesale, PC200-3 Turbo, S6D105, T04B59 Heavy Duty
| Model | Primary Part Number | Cross Ref Part Numbers | Compatible Engine Model | Compatible Vehicle Model |
|---|---|---|---|---|
| TA3103 | 465636-14 | 465636-5207S, 6207-81-8130, 465636-0207 | S6D95L | PC150-3 WA150 |
| TD04-27W | 4900562 | 4900435, 49377-01600 | 4D102 | !!ALARM_MISSING_MACHINE!! |
| S400 | 6156-81-8150 | 319460, 319448, 6156-818150 | SAA6D125E-3 | WA480 |
| S400 | 6156-81-8170 | 6156-81-8130, 318714, 323949 | SAA6D125E-3K | RS400-7 Industrial Fan |
| T04B59 | 465044-0261 | 6137-82-8200, 465044-5261S, 6137828600 | S6D105 | PC200-3 WA250 WA300 |
| T04B59 | 465044-0251 | 6207-81-8210, 465044-0051, 6207818210 | S6D95L | PC220-5 |
| TA3137 | 700836-0001 | 6207-81-8331, 6209-81-8311, 6207819330 | S6D95L | PC200-6 |
| KTR110-2 | 6505-65-5030 | 6505-61-5030, 6505655030, 6505655091 | SAA6D140E-3N-8 | PC750-6 PC800-7 |
| KTR110-3 | 6505-52-5510 | 6505525510, 6505525510R | S6D170-1 | GENSET S6D170 |
| KTR110 | 6505-55-5090 | 6505555090, R6505555090, 6505-51-7830 | SAA6D140E-2A | HD325-6 Dump Truck |
| H1C | 3522778 | 3525648, 3522777, 3802289, J919121 | 6BTA-590 | Industrial Tractor |
| HX35 | 3595157 | 3596668, 4038475, 6738-81-8090, 6738828220 | 6BTAA | PC200 WA200-250 |
| HX35 | 4037469 | 4955155, 6754-82-8010, 2835695 | SAA6D107E-1 | PC200-8 |
| HX35W | 6754-81-8240 | 4043679, 4955479, 6754818240 | SAA6D107E | GD555-5 WA380-8 |
| HX35 | 3539697 | 6735-81-8201, 3537132, 3539698 | S6D102 | PC220 CD60R |
| HX82 | 3594190 | 5323959, 3592520, 4025026 | QST30 | Generator |
| T04E15 | 466670-0013 | 466670-5013S, 6222-83-8171 | SA6D108 | PC300-6 |
| TO4E08 | 466670-0001 | 6222-83-8170, 6222-81-8210 | S6D95L | PC300-5EXX |
| TD04L | 49377-01700 | 6271-81-8100, 49377-01740, 49377-01770 | SAA4D95LE-5 | PC120-8 PC138US-8 |
| TA3103 | 465636-0206 | 6205-82-8100, 465636-5216S, 6205818120 | S4D95L | PC100 PC120 PC100-5 |
| KTR90 | 6506-21-5010 | 6506215910, 6506-215-910, 6156-81-8150 | KTR90332E | PC400-8 PC450-8 |
| HX25-1W | 4038790 | 3599355, 4089714, 4033351H | SAA4D95LE | PC100/200/128US |
| D155 | 6502-13-2003 | 6502132003, 319319 | S6D155-4-R | D150A EG300 |
| D355 | 6502-12-9004 | 6502-12-9005, 319032, 6502129003 | 4A-S6D155 | D355 Excavator |
| HX30-2W | 3592015 | 3802906, 3537033, 6732-81-8900 | 4BT | Truck Elite Industrial |
| HX30-3 | 6732-81-8100 | 6732-81-8101, 3802749, 3539803 | 4BT-110 | PC100-6 |
| KTR130-3 | 6502-51-5040 | 6502-51-5030, 6240611105 | SAA6D170-E6 | D375-A6 WA600-6 |
| KTR110 | 6505-71-5520 | 6505-71-5040, 6505-68-5540 | SAA6D140E-5H | !!ALARM_MISSING_MACHINE!! |
| TA4532 | 6151-83-8110 | 465105-5010S, 465105-0010 | S6D125 | PC400 PC400-5C |
| TO4B59 | 465044-0225 | 6138-81-8101, 465044-0025 | S6D105 | D66S-1 Offway |
| HX35W | 6738-81-8190 | 6738-81-8191 | S6D102 | PC220-7 |
| TBP417 | 466535-2 | 6222-81-8310, 447450-0082 | SA6D108-1G | WA420-3 |
| HX40W | 4038421 | 4038422, 3538856, 6743-81-8040 | S6D114 | PC300-7 |
| TO4E08 | 466704-0213 | 5222-81-8210, 6151-81-8500 | S6D125 | D85 D65EX-12E |
| S500 | 319179 | 6240-81-8600, 318349, 6240-81-8500 | SAA6D170E | H0465 WA700 |
| KTR110A-1K | 6505116210 | 6505-11-6210, 6505-11-5106 | S6D155 | D155 Excavator |
| HX83 | 4046244 | 4955653, 3798613, 6241-82-8200 | QSK35 | EX1200-6 |
| HX40 | 4038424 | 4038429, 4089965, 3575169 | 6CTA | D61 Bulldozer |
| TO4B59 | 465044-5257S | 465044-0255, 6138-82-8400, 465044-0039 | SA6D110-1A | WA350-1 WA400 EG150-3 |
| HX35W | 4038597 | 4955156, 4042667, 4038209 | QSB Tier-3 | PC200-8 Grader |
Komatsu turbochargers fit heavy machinery including Komatsu PC200-3 Excavator, Komatsu PC220-3 Excavator, Komatsu WA250-1 Loader, and Komatsu GD500 Grader.
Contact us for complete application coverage.
| Make | Machine / Vehicle Model | Year Range | Engine Code | Turbo OEM |
|---|---|---|---|---|
| Komatsu | PC200-3 / PC200LC-3 Excavator (PC200-3 turbo) | 1983–1990 | S6D105-1 | 465044-0261 |
| Komatsu | PC220-3 Offway Excavator (PC220-3 turbocharger) | 1984–1990 | S6D105 | 465044-0261 |
| Komatsu | WA250-1 / WA300-1 Loader | 1985–1992 | S6D105-1 | 465044-0261 |
| Komatsu | GD500 / GD505R Motor Grader | 1985–1993 | S6D105-1 | 465044-0261 |
Symptom: High-pitched whining or whistling sounds from the engine bay, oil accumulation in the compressor housing, and slow boost pressure buildup under PC200 excavator turbo operation. (VGT ring carbon seizure can also restrict exhaust flow).
Diagnosis: Oil contamination or low oil pressure degrades the lubricating film on the journal bearing. This causes direct metal-to-metal contact, leading to rapid journal bearing wear, excessive shaft play, and eventual housing contact.
Solution: Replace the turbocharger with a precision-balanced unit, use high-grade filters, and replace the turbo oil supply line during installation.
Symptom: Black smoke, heavy exhaust backpressure, or intake hose mounting misalignment during a mismatched rebuild.
Diagnosis: While many T04B59 models share physical casing shapes, the 465044-0261 features specific compressor wheel dimensions (Ind. 45.85 mm / Exd. 70.00 mm, trim 43) and an exact 1.00 A/R turbine housing specific to Komatsu S6D105 engines. (T04B59 heavy duty turbo)
Solution: Standardize with the exact 465044-0261 turbo replacement to ensure factory-calibrated mass airflow and prevent premature turbine wheel thermal fatigue.
Symptom: Whistling noises, oil seal leakage, or shaft seizure within the first few minutes of initial engine startup. (465044-0261 turbo replacement)
Diagnosis: Starting a dry turbocharger causes immediate bearing wear before oil pressure from the gear-driven pump reaches the bearing housing.
Solution: Fill the oil feed port with clean engine oil and manually spin the compressor wheel several times. Replace the old feed and return lines, torque all fasteners, and crank the engine without starting for 15 seconds to prime the oil circuit.
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