OEM & Private Label
AF25271 Air Filter
The NAKATU AF25271 is a secondary safety air filter designed for compatible heavy-duty diesel engine air intake systems. Installed inside the primary air filter, it provides an additional protective barrier against airborne dust and contaminants during primary filter servicing or failure. Its axial-seal design supports secure installation in compatible air cleaner housings.
Specifications
- Model:
- NAKATU AF25271 Air Filter
- Product Type:
- air filter
- Replaces:
- Fleetguard AF25271 Baldwin PA5497 Sakura A-8637 HIFI-FILTER SA18065 UFI 27.D28.00
- Applicable engine number:
- SANY SY200C8E / SY210C8E / SY230C8E (QSB6.7); LiuGong CLG835 / CLG225C; King Long KLQ6840 / KLQ6883; selected Dongfeng trucks. Verify air cleaner configuration.
- Key Specifications:
- Length: Approx. 415 mm (16.34 in) Largest Outside Diameter: Approx. 150 mm (5.91 in) Small End Outside Diameter: Approx. 132 mm (5.20 in) Largest Inside Diameter:
- OEM Part Numbers:
- Dongfeng: 1109N-030 King Long: 1109100K3F0 / 1109100K4F0 / XML1109100P6F4
Product Overview
The NAKATU AF25271 is a secondary safety air filter designed for compatible heavy-duty diesel engine air intake systems. Positioned inside the primary air filter, it provides an additional protective barrier against airborne dust and contaminants, particularly during primary filter replacement or in the event of primary filter damage.
Its axial-seal configuration is intended for installation in compatible air cleaner housings. The AF25271 supports engine intake protection in commercial vehicles, construction machinery and industrial diesel equipment.
Key Features
- Secondary safety element for dual-stage engine air filtration systems.
- Helps protect the engine when the primary filter is removed or damaged.
- Axial-seal design for compatible air cleaner housings.
- Target Markets: North America, China, Europe, South America, Southeast Asia, and South Pacific.
Applications
The AF25271 reference is used alongside the AF25270 primary air filter in selected heavy-duty diesel applications.
Published equipment references include SANY SY200C8E, SY210C8E and SY230C8E excavators equipped with Cummins QSB6.7 engines, LiuGong CLG835 wheel loaders and CLG225C excavators, selected Dongfeng commercial trucks, and King Long KLQ6840 and KLQ6883 buses.
Additional engine references include Cummins 6B5.9, 6BT5.9, 6BTA5.9 and selected 6CTA8.3 configurations.
The associated primary air filter is AF25270, and the reference dual-element kit is AA2956.
Always verify the original air cleaner assembly, equipment configuration, engine details and filter dimensions before ordering.
Why Choose NAKATU?
NAKATU focuses on aftermarket filtration solutions for heavy-duty trucks, construction machinery, mining equipment and industrial diesel engines.
Our filtration range includes primary and secondary air filters, fuel filters, fuel-water separators, engine oil filters and hydraulic filters.
The AF25271 complements the NAKATU AF25270 product range, allowing distributors and maintenance buyers to source related air filtration components.
Quality & Supply Assurance
Product dimensions, sealing surfaces, materials and installation requirements should be confirmed against the actual NAKATU product.
Customers may request available technical drawings, samples and product information for fitment evaluation before placing bulk orders.
Packaging, labeling, quantities and delivery requirements can be discussed during quotation and order confirmation.
Filtration performance and service life must be assessed using product-specific information and should not be assumed from another manufacturer's specifications.
Disclaimer
All third-party brand names and part numbers are used for identification and cross-reference purposes only. NAKATU is an independent aftermarket brand. Please verify product specifications and compatibility before ordering.
