The RHF4H Turbocharger (Part Number: 8972402101) is designed specifically for the Isuzu D-MAX 2.5L Turbo Diesel (4JA1-L) engine. This turbocharger provides fast spool-up, strong midrange torque, and dependable boost delivery — ideal for maintaining the rugged performance of Isuzu’s reliable pickup platform.
Manufactured under strict OEM standards, this RHF4H turbo ensures a perfect fit and outstanding durability. Whether you’re replacing a worn or damaged turbo, this high-quality unit restores lost power, fuel efficiency, and smooth acceleration.
✅ Key Specifications:
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Turbo Model: RHF4H
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Part Number: 8972402101
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OEM Equivalent: IHI RHF4H
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Engine Model: 4JA1-L
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Engine Type: 2.5L Turbo Diesel
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Vehicle Application: Isuzu D-MAX
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Cooling Type: Oil & Water Cooled
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Condition: 100% Brand New
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Fitment Type: Direct OEM Replacement
✅ Features & Benefits:
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Direct-fit replacement for Isuzu D-MAX 2.5L TD 4JA1-L engine
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High-efficiency compressor for fast boost response
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Factory-balanced turbo core ensures smooth, vibration-free operation
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Durable cast-iron turbine housing for heat resistance
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Improves horsepower, torque, and fuel economy
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Easy installation – no modifications required
✅ Compatible Engine:
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Isuzu 4JA1-L 2.5L Turbo Diesel Engine
✅ Compatible Vehicles:
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Isuzu D-MAX 2.5L TD (All Variants Using 4JA1-L Engine)
Frequently Asked Questions
Which engine does this turbocharger fit?
This RHF4H turbo fits the 4JA1-L 2.5L Turbo Diesel engine used in Isuzu D-MAX vehicles.
Is this a genuine OEM replacement?
Yes, this turbo replaces OEM part number 8972402101 and meets or exceeds original factory specifications.
Does this turbocharger come pre-balanced?
Yes, every RHF4H turbo is fully balanced and tested for immediate installation.
What improvements can I expect after installation?
Expect smoother boost, better fuel economy, and restored engine power and torque.
Can this turbo be used on other Isuzu engines?
It’s specifically designed for 4JA1-L engines; compatibility with other models should be verified before purchase.
Turbocharger RHF4H, 8972402101 | Isuzu D-MAX 2.5L TD / 4JA1-L Engine
Application: D-MAX 2.5L TD / 4JA1-L
OEM Number: 8972402101, VA420037




