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AF4201 Secondary Air Filter
Ultimate Safety Protection for Agricultural and Construction Machinery
Specifically designed as a secondary (safety) air filter to provide a final line of defense for high-value engines.
Fits major brands including Case, New Holland, JCB, and Atlas Copco platforms.
Features a specialized oval profile with integrated handling tabs for secure installation.
Directly replaces John Deere KK75902, Volvo 43863224, and Fleetguard AF4201.
Detailed Product Description
Critical Engine Safety
The AF4201 is a high-efficiency secondary air filter engineered to protect heavy-duty diesel engines from catastrophic failure. Often referred to as a "safety element," it remains in place while the primary filter is being serviced, ensuring no dust or debris enters the intake manifold during maintenance or in the event of primary filter damage.
Optimized for Severe Environments
Constructed with advanced synthetic media and a durable rubberized seal, this filter is optimized for the vibrating, high-heat environments of agricultural tractors like the Case Magnum and New Holland T8/T9 series. Its structural integrity ensures consistent airflow and maximum filtration efficiency across thousands of operating hours.
Technical Specifications
| Style | AIR FILTER |
| Dimension 1 (D1) | 380.0 mm |
| Dimension 2 (D2) | 366.0 mm |
| Dimension 3 (D3) | 352.0 mm |
| Height 1 (H1) | 60.0 mm |
| Height 2 (H2) | 40.0 mm |
Cross Reference (Entity Linking)
Fleetguard: AF4201 | Donaldson: P607557 | John Deere: KK75902 | HiFi Filter : SA 16509
New Holland: 87373279 | Mitsubishi: ME422836 | JCB: 334R1769 | Mann Filter :CF 37 001
Volvo: 43863224 | SF FILTER: SL 81673 | Agco:568311D1 | Case IH :N102192
Application Industry Fitment
Case Magnum (235-405), New Holland T8/T9, MF 8732 S, Valtra S series.
JCB JS300/305/370, Bell B-series haulers, Sandvik LH/TH mining trucks.
Atlas Copco QAC/QAS generators, Irizar I6 series, Temsa Maraton buses.
Quality Assurance
This filter is manufactured to rigorous industrial standards, ensuring it meets the Experience, Expertise, Authoritativeness, and Trustworthiness (E-E-A-T) required for B2B procurement. Every unit is checked for seal precision to prevent bypass leakage in high-pressure intake systems.
Technical FAQ
Q: Can I run my engine without the AF4201 secondary filter?
A: It is strongly discouraged. The secondary filter is a critical safety component that prevents engine damage if the primary filter fails or is installed incorrectly.
Q: Is the AF4201 interchangeable with the New Holland 87373279?
A: Yes, they are direct technical cross-references with identical fitment and performance.
Q: How often should the secondary air filter be replaced?
A: Typically, secondary filters are replaced every third primary filter change or according to your engine manufacturer's maintenance schedule.
Global Wholesale & Support
"Precision Filtration for Demanding Industrial Applications"
- ✔️ Volume Pricing: Inquire today for bulk distribution rates and fleet contracts.
- ✔️ Technical Verification: Confirm compatibility for your specific model serial number.
- ✔️ Fast Global Shipping: Reliable logistics for international parts supply.
WhatsApp / Wechat: +86 13328990097
Email: Sales@enginegensetparts.com
Official Website: www.enginegensetparts.com
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