Product Introduction
B1109103 Moisture-resistant Precision-fit OEM-standards Air Filter for Lifan
Our B1109103 Air Filter is a precision-engineered replacement part built to protect Lifan powertrains and optimize performance. Featuring a multi-layered synthetic media, it delivers 99.8% filtration efficiency, capturing dust, pollen, and debris as small as 5 microns—exceeding OEM standards. This blocks harmful contaminants from entering the combustion chamber, reducing engine wear by up to 30% (per in-house testing) and maintaining consistent airflow for steady power output. Rigorously validated in high-dust conditions, it extends engine life and improves fuel efficiency—ideal for fleet or individual use seeking reliable, cost-effective protection.
Backed by 5+ years of aftermarket expertise, this filter balances durability with performance to keep Lifan engines running smoothly.
Product Advantage
1. Industry-Leading Filtration Precision
Our filter uses a multi-layer synthetic media engineered to capture 99.8% of contaminants as small as 5 microns—including dust, sand, and pollen—surpassing OEM filtration standards by 15%. Lab tests prove it retains 20% more fine particles than generic filters, ensuring only clean air enters the engine. This directly reduces abrasive wear and maintains peak combustion efficiency for your Lifan powertrain.
2. Factory-Matched Precision Fit
Designed to Lifan’s original specifications with ±0.1mm dimensional tolerance, our filter seals flawlessly against the intake housing—eliminating “bypass leakage” (unfiltered air slipping into the engine). This ensures consistent airflow, prevents engine strain, and avoids check-engine lights caused by ill-fitting generics. A drop-in replacement for hassle-free maintenance.
3. Proven Performance Under Stress
We rigorously test every unit in a high-dust chamber (500 µg/m³) for 100+ hours, where pressure drop remains <5%—a critical metric for maintaining airflow. Field trials with aftermarket partners show it cuts engine wear by up to 30% compared to subpar filters. Trusted by fleet managers for trouble-free operation in demanding conditions.
4. Cost-Effective Long-Term Value
Combining a 25% longer lifespan with unwavering performance, this filter lowers your total cost of ownership (TCO). Commercial clients report 15% fewer filter-related engine repairs and 10% annual maintenance savings over generic options. It’s not just a part—it’s an investment in protecting your Lifan engine’s resale value and reliability.
Technical Parameters
| Parameter | Specification |
| Filter Media Material | 3-layer synthetic non-woven fabric (polyester + cellulose blend) with epoxy-coated backing
|
| Filtration Efficiency | ≥99.8% @ 5 microns (tested per ISO 16949 particulate contamination standards) |
| Dimensions (L×W×H) | 285mm × 180mm × 55mm (±0.1mm dimensional tolerance) |
| Max Operating Temp | -40°C to 120°C (resistant to thermal expansion/deformation) |
| Pressure Drop | ≤5% @ 85 CFM standard airflow (maintains optimal engine breathing) |
| Durability Testing | 500+ hours in accelerated aging chamber (500 µg/m³ dust load + 85% humidity) |
| Sealing Frame | Rigid thermoplastic construction with dual-layer gasket (prevents bypass leakage) |
| Compliance | Meets SAE J726 particulate retention standards; tested for OEM fitment protocols |
Product Uses
Here are specific application scenarios of Air filter:
1. High-Dust Work Sites (Construction/Mining)
Our filter dominates in dusty environments (500+ µg/m³ particulates)—its 99.8% efficiency at 5 microns (ISO-tested) traps sand/dirt, slashing engine wear by 30% vs. generics. Fleet managers praise its uptime: fewer breakdowns mean heavy equipment keeps running reliably, even in daily 12-hour shifts. Backed by 5+ years of aftermarket validation for dust-prone use.
2. Long-Haul Logistics & Freight
Built for trucks covering 10k+ miles/month, this filter’s moisture-resistant media maintains airflow—reducing engine strain and improving fuel consistency. Field tests show 25% longer life than standard filters, cutting replacement downtime and lowering TCO for logistics operators. Trusted by commercial fleets for cross-country reliability.
3. Urban Daily Commuting
Ideal for city driving with pollution/road dust: the multi-layer media captures fine particles (5 microns) without restricting airflow. Drivers enjoy smoother acceleration and fewer “check engine” lights—thanks to its precision fit preventing bypass leakage. Perfect for stop-and-go traffic where low maintenance matters.
4. Fleet Maintenance Programs
Aligns with strict PM schedules: 500-hour aging tests (500 µg/m³ dust + 85% humidity) prove durability. Clients report 15% fewer filter-related repairs and 10% annual savings—making it a scalable choice for managing 50+ vehicles. Built for hassle-free fleet upkeep.
5. Extreme Temperature Regions
Withstands -40°C cold or 120°C desert heat: thermoplastic frame resists deformation, maintaining ≤5% pressure drop. Tested 10k+ hours in climate chambers, it ensures steady airflow for engines in harsh weather—critical for regions with temperature swings.
Product Operate Guide
Inspect old filter for dirt/debris and seal gaps.
Align new filter’s tabs with housing slots; hand-tighten clamp to 8-10 N·m (OEM-recommended torque—no over-tightening!).
Start engine—no hissing means no unfiltered air bypass.
Replace every 5k-7.5k miles (8k-12k km)—our testing proves this cuts engine wear by 30%.
