Description

Turbo HX55 Turbocharger 3768075 The HX55 Turbocharger 3768075 / A4720961699 is a high-quality replacement turbo designed specifically for Detroit Diesel DD15 engines used in heavy-duty commercial trucks. Built to OEM-level engineering standards, this turbocharger restores lost boost pressure, engine power, and throttle response while supporting fuel-efficient performance under demanding workloads. Manufactured with high-temperature-resistant turbine materials and precision-balanced rotating components, the HX55 turbo offers durability and stable performance in long-haul trucking environments. It is a direct-fit replacement for OEM systems using reference numbers 3768075 and A4720961699 , ensuring proper fitment without modification. Ideal for Freightliner DD15-powered trucks and fleet maintenance operations , this turbocharger supports dependable engine performance and reduces downtime in commercial operations. PRODUCT FEATURES & COMPONENTS OEM-spec HX55 turbocharger assembly High-strength turbine & compressor materials Precision-balanced rotating group Designed for heavy-duty diesel workloads Compatible with DD15 engine platforms Factory-tested for airflow and durability Direct replacement for OE reference numbers ENGINE COMPATIBILITY Detroit Diesel DD15 engine OEM Reference Numbers: 3768075 A4720961699 VEHICLE APPLICATIONS Heavy-duty diesel trucks equipped with DD15 engines Long-haul & logistics transportation trucks Fleet service and commercial trucking platforms KEY FEATURES & BENEFITS Restores turbo boost and engine performance Supports fuel-efficient combustion Durable construction for extended service life Smooth and responsive throttle feel Direct-fit installation reduces service time Ideal for commercial fleet environments Frequently Asked Questions Q: What engine does this HX55 turbo fit? A: This turbocharger is compatible with Detroit Diesel DD15 engines. Q: What are the OEM part numbers? A: The reference numbers include 3768075 and A4720961699. Q: Is this turbo a direct replacement? A: Yes, it is designed as a direct-fit replacement for DD15 turbo systems. Q: Is this turbo suitable for heavy-duty trucks? A: Yes, it is built for heavy-duty commercial trucking applications. Q: Does this turbo help restore performance? A: Yes, it restores boost pressure, power, and fuel efficiency.