Reliable engine protection starts with precision filtration. If you are searching for a high-quality 6N-6444 replacement for your Caterpillar fleet, you have found the right source. This heavy-duty air filter is engineered to meet or exceed OEM specifications, ensuring your 3306 or 3406 engines maintain peak performance in the most demanding environments.
Whether you are managing a construction site or a repair shop, sourcing the right 6N6444 filter is critical to preventing premature engine wear and minimizing downtime.
| Data Field | Product Details |
|---|---|
| Model NO. | 6N-6444 / 6N6444 Heavy Duty Air Filter |
| Product Name | Primary Engine Air Filter |
| Part Number | 6N-6444, 6N6444 Replacement |
| Compatible Brands | Caterpillar (CAT), Aftermarket Replacement |
| Condition | Brand New, OEM Standard Replacement |
| MOQ | 1 Piece |
| Payment Terms | T/T, Western Union, MoneyGram |
| Delivery Methods | Express (DHL, Fedex, EMS, UPS), Air Freight, Sea Freight |
| Stock Status | In Stock / Fast Dispatch Available |
| Application | Engine rebuild, routine maintenance, overhaul projects |
This filter is widely used across various heavy equipment models. Below is the compatibility list for 6N6444:
| Equipment Type | Model Coverage |
|---|---|
| Track-Type Tractors (Dozers) | D5, D6, D6C, D6D, D7, D7G Series |
| Engine Models | 3304, 3306, 3406, 3406B, 3408 Engine Series |
| Wheel Loaders | 966C, 966D, 980, 980B, 980C Models |
| Motor Graders | 12G, 14G, 140G, 16G Series |
| Excavators | 235, 235B, 245 Series |
| Features | Standard Filters | Our 6N6444 Replacement |
|---|---|---|
| Media Material | Standard Paper | High-Efficiency Cellulose Media |
| Structural Strength | Prone to collapse | Reinforced Steel Mesh Inner/Outer Support |
| Seal Reliability | Variable fitment | Heavy-Duty Polyurethane Seals |
| Dust Capacity | Moderate | Extended Service Interval Design |
| Cost Efficiency | Frequent changes | Lower Total Cost of Ownership |
| Manufacturing | Generic mass production | OEM Standard Precision Craftsmanship |
Optimized Airflow: Precision-pleated media ensures maximum engine breathability.
Superior Filtration: Captures 99.9% of dust and contaminants before they reach the cylinder.
Vibration Resistance: Built to withstand the harsh vibrations of D6 and D7 dozers.
Universal Fitment: Guaranteed compatibility with part numbers 6N-6444 and 6N6444.
Fleet Reliability: Trusted by independent repair shops for long-term maintenance contracts.
Immediate Availability: Ready for express shipping to reduce machine downtime.
Our expert team helps operators navigate complex maintenance challenges:
Identify potential risks during routine maintenance before they become costly failures.
Recommend suitable replacement parts based on your specific engine hours and environment.
Support both inspection advice and parts supply for fleet owners and individual owners.
Need professional guidance? Email us for expert support.
A: A clogged filter restricts airflow, leading to "air starvation." Symptoms include black smoke from the exhaust, significant power loss, and increased fuel consumption. In severe cases, it can cause engine overheating and damage to the turbocharger.
A: While standard intervals are usually every 500 hours, we recommend checking the restriction indicator daily. In high-dust areas, the 6N-6444 should be replaced whenever the indicator reaches the red zone to protect your engine's internal components.
A: Our replacement features an OEM-standard tri-metal structure for maximum durability and is trusted by repair shops & equipment fleets globally for its consistent quality.
We specialize in complete engine assemblies and high-precision spare parts. Our core inventory includes premium solutions for Cummins, Komatsu, Caterpillar, Isuzu, Kubota, Yanmar, and Weichai engines.
From Cylinder Liners, Pistons, and Piston Rings to Crankshaft Bearings, Connecting Rod Bearings, and Thrust Washers, we provide everything needed for a professional engine overhaul. Our Full Gasket Overhaul Kits, Diesel Pumps, Fuel Injectors, Crankshafts, Turbochargers, Water Pumps, Oil Pumps, Cylinder Blocks, Cylinder Heads, and Connecting Rods are engineered for longevity.
Contact us now for bulk pricing or immediate shipping quotes.
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