Komatsu Turbocharger Complete Product Guide — PC200 to PC4000, WA to D475, Best-Selling Models In Stock | HHX PARTS

Komatsu: The World’s Second-Largest Construction Equipment Manufacturer — and a Global Turbocharger Market Leader

Komatsu is the world’s second-largest construction and mining equipment manufacturer, with a global installed base spanning every continent and virtually every application in the construction, mining, quarrying, and forestry sectors. The distinctive yellow machines — PC-series excavators, WA-series wheel loaders, D-series bulldozers, GD-series motor graders, and HD-series mining haul trucks — are powered by a lineage of diesel engines that includes both proprietary Komatsu powerplants and Cummins-sourced engines across different equipment generations.

Komatsu’s turbocharger aftermarket is one of the highest-volume segments in the global construction equipment parts industry. With millions of PC200 to PC400 excavators operating globally, the demand for replacement turbochargers — particularly the Holset HX35W for the SAA6D107 engine in PC200-8 / PC210-8 / PC220-8 machines — represents one of the largest single aftermarket SKUs in the entire heavy equipment world.

At PEÇAS HHX, we supply turbochargers for the full Komatsu engine platform range — from compact SAA4D95LE engines in mini excavators, through the dominant SAA6D107 / SAA6D114 mid-size platform, to the massive Cummins QSK35 powering Komatsu PC3000 and PC4000 mining shovels.

The World’s Best-Selling Komatsu Turbochargers — Ranked by Global Aftermarket Volume

Based on global aftermarket sales data and replacement frequency analysis across Komatsu’s installed equipment base, the following ranking reflects real-world demand across workshops, distributors, and fleet operators worldwide:

Komatsu Engine Platform Overview

HHX PARTS In-Stock Products for Komatsu Equipment

#1 Best-Seller: SAA6D107 — Komatsu PC200-8 / PC210-8 / PC220-8 / PC270-8

The HX35W for the SAA6D107 is the most frequently replaced single turbocharger SKU in the Komatsu aftermarket globally. Every distributor serving construction equipment workshops should carry this unit in stock.

• HX35W Turbocharger 3599725 / 3599727 / 2-911655 — For Komatsu with Cummins 6BTAA / 6BTE / 6B engine — PC200-6 and industrial applications
• HX35W Turbocharger 4033072H / 4089954 — For Komatsu Industrial 5.9L engine with Cummins 6BTAA
• HX35 Turbocharger 4035373 / 3595158 / 3595157 — For Komatsu PC200-6 with Cummins 6B / 6BT / 6BTA / 6BTAA / S6D102 engine
• HX35 Turbocharger 3536338 / 3537020 / 3536339 — For Komatsu WA150 / WA200 with S6D102 / Cummins 6BTA engine

SAA4D95LE-5 — Komatsu PC130-8 / PC138US-8 / PC160-8

• TD04L Turbocharger 49377-01700 / 04272325KZ / 49377-07700 — For Komatsu Excavator PC130-8, PC138US-8 with SAA4D95LE-5 engine (Mitsubishi-sourced)

Cummins QSB3.3 — Komatsu PC70-8 / PC88MR-8

• TD04L Turbocharger 49377-01790 / 4944852 — For Komatsu PC70-8, PC88MR-8 with Cummins QSB3.3 engine

Cummins 4BT — Komatsu Elite / Compact Industrial

• HX30W Turbocharger 3590024 / 3590025 / 6732818062 — For Komatsu Elite / compact industrial with Cummins 4BT engine

Cummins QSK35 — Komatsu PC3000 / PC4000 Mining Shovels

• HX83 Turbocharger 5327838 / 2837539 / 4033032 — For Cummins QSK35 in Komatsu PC3000-6, PC4000-6 mining shovels
• HX83 Turbocharger 4033032 / 6241-82-8200 — For Cummins QSK35 Tier 2 in Komatsu PC3000 / PC4000 mining equipment

For SAA6D107 (6754-81-8190 / 6754-81-8090 / 4038210 / 4038288), SAA6D114 (6743-81-8040 / 6743-81-8050), and S6D125 / SAA6D140 applications — contact our technical team with your Komatsu serial number or OEM part number. We source and supply to order with 7-day lead time on stocked SAA6D107 variants and 20-day on SAA6D114 and larger frame turbos. All enquiries answered within 24 hours.

Most In-Demand Komatsu Machines by Global Region

Africa (Highest Volume Market for PC200-8)

• PC200-8, PC210-8, PC220-8 — SAA6D107 engine (HX35W 6754-81-8190) — dominant excavators in West, East, and Southern African construction and mining
• PC300-8, PC350-8 — SAA6D114 engine (HX40W) — quarry and heavy earthmoving across the continent
• WA380-7, WA430-6, WA470-6 — SAA6D114 engine (HX40W) — wheel loaders in port and mining operations
• PC200-6 — Cummins 6BTA engine (HX35 4035373) — older generation still in heavy service across sub-Saharan Africa

Southeast Asia (Indonesia, Philippines, Vietnam, Thailand)

• PC200-8, PC210-8 — highest volume market globally for SAA6D107 machines due to plantation, palm oil, and infrastructure expansion
• PC78US-8, PC88MR-8 — QSB3.3 / SAA4D95LE machines — compact excavators dominant in urban construction
• D155A, D275A — SAA6D140 bulldozers — plantation land clearing in Indonesia and Malaysia

Middle East (Saudi Arabia, UAE, Iraq)

• PC400-8, PC450-8 — S6D125 engine — large excavators in quarry and mega-project earthmoving
• WA500-6, WA600-6 — SAA6D140 engine — large wheel loaders in port and quarry applications
• PC200-8, PC220-8 — SAA6D107 (HX35W 6754818190) — mid-size excavators across construction projects

Mining (Global)

• PC3000-6, PC4000-6 — Cummins QSK35 (HX83 5327838) — hydraulic mining shovels in copper, gold, coal, and iron ore operations
• HD785-7 — SAA6D140 engine — 91-ton mining haul truck
• PC800-8, PC1250-8 — SAA6D140 engine — large hydraulic excavators for mine face stripping

Why the SAA6D107 HX35W Is the World’s #1 Komatsu Turbo

The Holset HX35W for Komatsu’s SAA6D107 engine holds a unique position in the global construction equipment aftermarket. Three factors combine to create the highest absolute replacement volume of any single Komatsu turbocharger SKU:

1. Installed base size: The PC200-8 generation excavator is the world’s highest-volume 20-tonne class excavator — with more than 500,000 units produced since the PC200-8 launch in 2007. No other excavator model comes close in installed base size.
2. High turbocharger failure rate in field conditions: The SAA6D107 operates under sustained high-load duty cycles in hot, dusty environments across Africa, the Middle East, and Southeast Asia — conditions that significantly accelerate turbocharger bearing wear versus manufacturer service life estimates. Average replacement interval in these markets is 3,000–5,000 hours versus the OEM target of 6,000+ hours.
3. Critical machine dependency: A PC200-8 excavator with a failed turbocharger is completely non-operational — there is no safe mode or reduced-power operation. The urgency of replacement drives a large aftermarket demand for in-stock units at competitive prices.

SAA6D107 Turbocharger: Key Specifications

• Turbo model: Holset HX35W
• Komatsu part numbers: 6754-81-8190 / 6754818190 (primary) / 6754-81-8090 (early build)
• Holset cross-reference: 4038597 / 4038288 / 4038210
• Compressor wheel inducer: ~60mm
• Bearing system: Journal bearings, oil-lubricated
• Boost pressure (rated): approximately 160–175 kPa (gauge)
• Oil inlet: Banjo fitting, M10 (top of centre housing)
• Oil drain: Flange mount (bottom of centre housing)

Installation Checklist for Komatsu Turbocharger Replacement

1. Drain and replace engine oil and filter — mandatory before installation; metallic debris from a failed turbocharger destroys new bearings within hours
2. Replace oil feed line and banjo bolt — the small orifice in the banjo bolt is easily blocked by oil coking; the new line eliminates this risk
3. Check and clear the oil drain line — PC200-8 drain line routing is prone to kinking with age; a partially blocked drain is the most common cause of repeat seal failure
4. Pre-lubricate through oil inlet port — pour approximately 50ml clean engine oil and rotate compressor wheel by hand before fitting
5. Prime oil system before first start — crank with pilot cut-off solenoid disconnected for 10–15 seconds to build oil pressure before starting
6. Idle for 5 minutes on first start — do not operate any attachment functions until oil temperature begins to rise
7. Inspect full intake tract — replace air filter and inspect all ducting from pre-cleaner to turbo inlet; any damage or bypass allows dust ingestion that destroys the new compressor wheel

HHX PARTS Komatsu Supply Programme

• SAA6D107 HX35W — in stock, 7-day lead time — the world’s most in-demand Komatsu turbocharger; we maintain deep stock to support urgent customer needs
• Complete Komatsu engine coverage — SAA4D95LE, SAA6D107, SAA6D114, QSB3.3, 6BTAA, S6D102/4BT, QSK35 and more
• Komatsu OEM cross-reference database — matching by Komatsu serial number prefix, machine model, or OEM part number
• New OEM-grade units — dynamically balanced and flow-bench tested; not remanufactured cores
• Factory-direct pricing — significant savings versus Komatsu dealer parts pricing; particularly relevant for high-volume African and Asian market distributors
• Global supply — active distribution to construction equipment workshops and dealers across Africa, the Middle East, Southeast Asia, Europe, and the Americas

Further Reading

• Komatsu Excavator Turbocharger Technical Guide — SAA6D107, SAA6D114 & More
• Cummins Turbocharger Full Range — HX35 to HX80
• Caterpillar Turbocharger Full Range — C7 to 3516
• Africa Turbocharger Sourcing Guide 2025
• Middle East Turbocharger Sourcing Guide 2025
• The Complete Turbocharger Buyer’s Guide: 8 Costly Mistakes to Avoid

Request a Quote for Your Komatsu Turbocharger

Send us your Komatsu OEM part number (6754-xx-xxxx format), machine model and serial number, or engine model — and we will confirm the correct unit, availability, and pricing within 24 hours. For SAA6D107 HX35W, we have stock ready to ship.

• Email: gzlh2022@gmail.com
• Phone / WhatsApp: +86 18170714612
• Website: www.hhxparts.com