Description

When your heavy machinery demands more, the Holset HX40W 4038421 answers the call. This isn’t just another turbocharger – it’s the beating heart that transforms your Komatsu excavator or Cummins-powered truck from a workhorse into a powerhouse.

Power You Can Feel

Imagine standing beside your PC300-6 excavator as it effortlessly moves earth that once seemed immovable. That’s the Holset difference. With precisely engineered compressor wheels (58mm inducer/81.3mm exducer) featuring an aerodynamic 8+8 blade design, the HX40W forces oxygen-rich air into your combustion chamber with the intensity of a mountain storm.

Every revolution of its 12-blade turbine wheel transforms wasted exhaust energy into raw, usable power – the kind that pushes your equipment beyond what you thought possible.

Trusted Across Continents

From Japanese-engineered Komatsu excavators to American-built Cummins engines, the HX40W speaks the universal language of performance. Compatible with:

• Komatsu Workhorses: PC300-6, PC350, PC360 excavators that move mountains, and WA380/WA400 wheel loaders that reshape landscapes
• Cummins Power Plants: 6C and 6CTAA diesel engines that have built their reputation on reliability

Precision-Engineered Reliability

Inside each HX40W lives a Cartridge Housing Rotating Assembly (CHRA #4027871) – the soul of the turbocharger. Protected by a rugged bearing housing (#3532632) and balanced to microscopic tolerances, this assembly spins at tens of thousands of RPM while maintaining its cool under pressure.

Direct OEM Replacement Without the OEM Price

Why compromise with aftermarket guesswork? The 4038421 is a direct OEM replacement (interchange with 4035653, 4035653H, 4038425, 5358424, 5455700, 5460762) that installs without modification. The included gaskets ensure a leak-free seal from day one.