Description
Product Overview
The Koruidar Oil Pressure Relief Valve Gasket is designed as a direct replacement for Cummins ISX and QSX engines. Crafted from high‑grade silvery alloy, it meets OEM specifications for size, pressure tolerance, and durability. Weighing just 1.44 ounces and measuring 3.2 x 2 x 2 inches, it fits seamlessly into the existing valve housing without any modifications.
![[Product front view showing all components]](https://www.galaxybuy.store/wp-content/uploads/2026/06/7a82d32238ee45ac917aec30be8578e8.jpg)
Usage
This gasket is ideal for heavy‑duty trucks, construction equipment, and any vehicle equipped with Cummins ISX or QSX power units. Install it during routine maintenance or when replacing a worn valve to restore proper oil pressure regulation and protect engine components.
Why Choose Us
Koruidar combines precision engineering with rigorous quality control, delivering a gasket that matches the original part number 4357177. Our products undergo strict testing to ensure leak‑free performance, and we provide responsive customer support for any installation questions.
Key Features
- Exact OEM fit eliminates the need for custom machining.
- High‑temperature resistant material maintains seal integrity under heavy loads.
- Corrosion‑resistant silvery finish extends service life.
- Lightweight design simplifies handling and installation.
- Dedicated support team ready to assist with fitment verification.
FAQ
Is this gasket compatible with all Cummins ISX models?
Yes, it matches part number 4357177 and fits all ISX variants that use this specification.
Do I need any tools or modifications to install the gasket?
No special tools are required; the gasket installs directly into the existing valve housing.
Can I use this gasket on QSX engines as well?
Absolutely, the gasket is cross‑referenced for both ISX and QSX engine families.
What warranty does Koruidar provide?
We offer a one‑year limited warranty covering manufacturing defects.
How do I verify the correct part before ordering?
Check your engine’s service manual for part number 4357177 and confirm the model matches ISX or QSX.
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