The Turbocharger HT12-17A / HT12-20 (Part Numbers 8972389791, 047-278) is a high-performance replacement designed for Isuzu 4JG1 and 4JG1T 3.1L diesel engines, widely used in Takeuchi TL140 and CTL70 compact track loaders.
This turbocharger is precision-engineered to meet OEM specifications, ensuring exceptional boost performance, fuel efficiency, and extended service life. The advanced compressor and turbine design provide quicker spool-up times and consistent power delivery, even under heavy-duty working conditions.
Constructed with premium-grade materials, this turbo resists high heat and pressure, making it ideal for off-road and construction machinery. It’s a direct-fit replacement requiring no modifications — simply bolt it on and experience restored performance and efficiency.
✅ Key Specifications:
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Turbo Model: HT12-17A / HT12-20
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Part Numbers: 8972389791, 047-278
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Engine Models: Isuzu 4JG1, 4JG1T (3.1L Diesel)
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Applications: Takeuchi TL140 / CTL70 Track Loaders
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Cooling Type: Oil-cooled
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Fitment Type: OEM Direct Replacement
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Condition: Brand New
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Material: Cast Iron Turbine / Aluminum Compressor
✅ Features & Benefits:
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OEM-quality replacement turbocharger for Isuzu 4JG1 / 4JG1T engines
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Compatible with Takeuchi TL140 and CTL70 track loaders
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Improves torque, power, and fuel efficiency
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Precision-balanced for reduced vibration and noise
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Durable design withstands demanding work environments
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Direct-fit installation — no adjustments needed
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Tested for boost consistency and performance reliability
✅ Compatible Engines:
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Isuzu 4JG1 (3.1L Diesel)
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Isuzu 4JG1T (Turbocharged 3.1L Diesel)
✅ Compatible Equipment:
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Takeuchi TL140 Track Loader
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Takeuchi CTL70 Compact Track Loader
Frequently Asked Questions
Which engines are compatible with the HT12-17A / HT12-20 turbocharger?
This turbocharger fits Isuzu 4JG1 and 4JG1T 3.1L diesel engines.
Which machines use this turbocharger?
It’s used in Takeuchi TL140 and CTL70 compact track loaders.
What are the part numbers for this turbocharger?
The OEM part numbers are 8972389791 and 047-278.
Is this turbocharger new or remanufactured?
This turbocharger is brand new, manufactured to OEM-quality standards.
Does the HT12 turbocharger require modifications for installation?
No, it is a direct bolt-on replacement for OEM applications with no modifications needed.
Turbocharger HT12-17A HT12-20, 8972389791 047-278 | Isuzu 4JG1 4JG1T 3.lL / Takeuchi Track Loader TL140 CTL70 Engine
Application: EX75US-7, ZAX70, ZX70, ZX70LC, ZX75UR, ZX75US, ZX85US, ZX75US, ZX85US, 70NX, 80NX, TL140, CTL70, DH55, MTL20, CTL70, XG808
OEM Number: 8972389791, 8-97238-979-1, Z-8-97238-979-1, 897238-9791, 8972389792, 8-97238-979-2, 897238-9792, 8973186510, 8-97318-651-0, 897318-6510, 40151-09600, 4015109600, 047-278, 047-279, 047-283, 047278, 047279, 047280, 047283, 1047280, 1047283, 047-280, 047280




