Overhaul Rebuild Kit | Isuzu 4JJ1 Engine / Hitachi Excavator ZX120 ZX135US ZX180NLC
High-performance Overhaul Rebuild Kit for Isuzu 4JJ1 Engine, compatible with Hitachi ZX120, ZX135US, and ZX180NLC Excavators. Designed for precision fitment, superior durability, and reliable engine restoration under demanding worksite conditions.
$580.80
The Overhaul Rebuild Kit for Isuzu 4JJ1 Engine is a comprehensive solution for complete engine restoration, specifically designed for Hitachi Excavator models ZX120, ZX135US, and ZX180NLC. Manufactured to OEM standards, each component ensures the highest quality, strength, and performance required for heavy-duty construction and excavation work.
This rebuild kit restores your engine’s original compression, power, and fuel efficiency, minimizing downtime and reducing repair costs. Built from premium-grade materials, it ensures excellent sealing, reduced friction, and long-lasting performance — even in harsh operating environments.
Whether you’re overhauling for maintenance or full restoration, this kit guarantees reliable performance and extended engine life for your 4JJ1-powered Hitachi excavators.
Key Features:
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Complete engine rebuild kit for Isuzu 4JJ1 Engine
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Fits Hitachi ZX120, ZX135US, and ZX180NLC Excavators
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Includes pistons, rings, liners, bearings, thrust washers, and gasket set
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Built to OEM-grade precision and reliability
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Restores engine compression, power, and efficiency
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Provides excellent sealing and wear resistance
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Reduces oil consumption and exhaust emissions
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Ideal for construction, mining, and heavy machinery applications
Compatible Applications:
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Engine Model: Isuzu 4JJ1
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Machine Models: Hitachi ZX120, ZX135US, ZX180NLC
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Equipment Type: Excavator
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Fitment Type: OEM Direct Replacement
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Suitable Years: 2005–Present (depending on machine variant)
Frequently Asked Questions (FAQ)
What components are included in this overhaul kit?
This kit includes pistons, piston rings, cylinder liners, main and rod bearings, thrust washers, and a complete gasket set.
Is it compatible with Hitachi ZX120, ZX135US, and ZX180NLC Excavators?
Yes, this kit is specifically designed for these Hitachi excavator models powered by the Isuzu 4JJ1 engine.
Does it meet OEM standards?
Yes, every component is manufactured to meet or exceed OEM specifications for performance, reliability, and durability.
What benefits can I expect after installation?
Restored engine compression, reduced oil consumption, improved fuel efficiency, and extended operational life.
Should I have a mechanic install this kit?
Professional installation is recommended for accurate fitting, correct torque settings, and long-term performance.
Overhaul Rebuild Kit for Isuzu 4JJ1 Engine Hitachi Excavator ZX120 ZX135US ZX180NLC
Engine Model: ISUZU 4JJ1 Engine
Machine Model: HITACHI
Application: ZX120, ZX135US
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