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3I-0421 Industrial Air Filter
High-Performance Air Intake for Heavy-Duty Engines & Trucks
Product Highlights
How the 3I-0421 Air Filter Works
An industrial air filter is designed to remove airborne contaminants-such as dust, soot, and silica-before they enter the combustion chamber. The 3I-0421 utilizes a disposable, high-capacity housing style that manages high velocity air intake while maintaining structural integrity. By ensuring a clean air-to-fuel ratio, this filter prevents abrasive wear on cylinder liners and piston rings.
Why Choose Our Filtration Solution
In B2B procurement, reliability and cost-efficiency are paramount. Unlike generic alternatives, our filters are manufactured with deep-pleat technology to increase the effective surface area.
- Durability: Withstands vacuum pressures of turbocharged Cummins N14 or CAT 3406.
- Stability: Consistent lead times to reduce your Total Cost of Ownership (TCO).
Application and Performance
The 3I-0421 is specifically designed for long-haul trucking and heavy construction applications. Whether operating a Kenworth K100E in a mining site or a Freightliner FLD on the highway, the 180-degree airflow path ensures that the engine receives cool, clean air under all load conditions.
Technical Specifications
| Parameter | Metric Value | Imperial Value |
|---|---|---|
| Model Number | 3I-0421 | 3I-0421 |
| Overall Length | 647.7 mm | 25.50 inch |
| Inlet Diameter | 228 mm | 8.98 inch |
| Outlet Diameter | 177.8 mm | 7.00 inch |
| Body Diameter (Max) | 279.4 mm | 11.00 inch |
| Rated Flow (HR) | 34 m³/min | 1201 cfm |
| Restriction (HR) | 14.95 mbar | 6 inch H2O |
| Filter Style | Disposable | Disposable |
OEM Cross Reference
Direct interchange for leading brands:
Supported Vehicle Matrix
| Brand | Series / Model | Engine |
|---|---|---|
| Freightliner | FLD Series | CAT 3406, Cummins N14 |
| Kenworth | K100 / K100E | CAT 3306, Cummins KT1150 |
| Mercedes | Truck / Bus | OM447, OM906, MBE904 |
Quality and Trust Section
Our manufacturing processes adhere to ISO 5011 standards for air intake systems. Every 3I-0421 unit undergoes a 12-Point QC Inspection, verifying seal integrity and media density to ensure performance parity with original equipment. We focus on structural rigidity to prevent filter collapse during peak torque demands.
Frequently Asked Questions
Q: How do I know when to replace the 3I-0421 air filter?
A: Replace when the restriction indicator reaches specified limit (20-25 inches H2O) or during scheduled maintenance.
Q: Can this filter be cleaned and reused?
A: No. It is a disposable style filter. Cleaning with compressed air can rupture media.
Q: What is the benefit of a 1201 cfm rated flow?
A: Ensures the engine is not "starved" for air, maintaining fuel economy and preventing excessive EGT.
Q: Is this filter compatible with Cummins NTC engines?
A: Yes, widely used in Freightliner and Kenworth trucks with Cummins NTC and N14 engines.
Q: Does this filter provide a 100% seal?
A: Verified to OEM tolerances, ensuring 228mm inlet and 177.8mm outlet provide a vacuum-tight seal.
Ready to Optimize Your Fleet's Performance?
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