✅ Compatibility

• Turbo Model: HX40W (Holset / Cummins Turbo Technologies)
• Engine: Cummins 6CTAA / 6CTAA8.3 (8.3L 6-cylinder inline diesel, 330–350 HP)
• OEM Part Numbers: 3591021, 3598068, 3800405
• Common Equipment Applications:
  • Heavy-Duty Trucks: Trucks and coaches with Cummins 6CTAA 8.3L engine
  • Construction Equipment: Large excavators, wheel loaders, and other construction machinery with Cummins 6CTAA engine
  • Generator Sets: Stationary and mobile generator sets with Cummins 6CTAA engine
  • Marine Applications: Marine propulsion and auxiliary engines with Cummins 6CTAA engine

🔑 Key Specs

• Part Numbers: 3591021, 3598068, 3800405
• Turbo Model: HX40W (Holset / Cummins Turbo Technologies)
• Engine Power Rating: 330–350 HP
• Condition: New Aftermarket
• SKU: 3591021

📦 What's Included

• 1× Turbocharger HX40W (3591021 / 3598068 / 3800405) — New Aftermarket

🔧 Product Highlights

• Manufactured to Holset / Cummins OEM specifications — direct drop-in replacement for the Cummins 6CTAA 8.3L (330–350HP), covering trucks, construction equipment, generator sets, and marine applications.
• New aftermarket quality at a competitive price — restores full boost pressure and eliminates power loss, black smoke, turbo lag, and boost pressure faults.

⚠️ Verify existing turbo part number before purchasing. If you are unsure, feel free to ask us — we will be happy to confirm fitment for you.