Relay & Fuse Box Cover for Isuzu NPR, NRR, NQR (2008–Up) – 4HK1 5.2L
This relay & fuse box cover is a genuine OEM replacement designed for the following:
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Isuzu NPR
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Isuzu NRR
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Isuzu NQR
Model Years: 2008–Up
Engine: 4HK1 5.2L Diesel
The fuse and relay box cover protects critical electrical components in your truck, preventing exposure to dirt, dust, moisture, and vibration. Proper protection ensures the following:
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Reliable operation of relays and fuses
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Prevention of electrical shorts or corrosion
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Longer service life for electrical components
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Maintaining vehicle safety and performance
Replacing a damaged or missing cover with OEM ensures factory fit, protection, and durability.
Key Features
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Genuine New OEM relay & fuse box cover
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Fits Isuzu NPR, NRR, and NQR (2008–Up)
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Compatible with 4HK1 5.2L diesel engine
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Protects relays and fuses from dust, moisture, and vibration
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Direct OEM replacement for factory cover
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Durable ABS construction for long-term reliability
Vehicle Compatibility
Fits:
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Isuzu NPR
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Isuzu NRR
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Isuzu NQR
Engine: 4HK1 5.2L Diesel
Condition: New OEM
Part Type: Relay & Fuse Box Cover
Placement: Engine / Electrical System
Common Signs You Need Replacement
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Cracked or broken cover
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Missing cover exposing relays and fuses
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Moisture or dust entering the fuse box
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Electrical shorts or relay failure due to contamination
Frequently Asked Questions (FAQ)
What does a relay & fuse box cover do?
It protects relays and fuses from dust, moisture, and vibration, ensuring reliable electrical system operation.
Which trucks does this fit?
This OEM cover fits Isuzu NPR, NRR, and NQR models from 2008 up with the 4HK1 5.2L diesel engine.
Can a damaged cover cause electrical problems?
Yes, exposure to dust or moisture can lead to shorts, relay failure, or fuse blowouts.
Is this a direct OEM replacement?
Yes, this cover meets factory specifications for fit, protection, and durability.




