Home > products > CAT Excavator Parts >
479-8991 4798991 Secondary Air Filter Fits C.A.T Engine Filtration System

479-8991 4798991 Secondary Air Filter Fits C.A.T Engine Filtration System

Place of Origin:

USA

Brand Name:

C.A.T

Model Number:

479-8991 4798991

Chat Now
Request A Quote
Product Details
Product Name:
Secondary Air Filter
Part No.:
479-8991 4798991
Quality Standard:
Genuine Part
Compatible Equipment Models:
320D, 320D L, 320D GC, 323D, 323D L
Payment & Shipping Terms
Minimum Order Quantity
1 piece
Price
$50-100
Packaging Details
Neutral Export Carton or Custom Wooden Case
Delivery Time
7-10days
Payment Terms
L/C,D/A,D/P,T/T
Supply Ability
500pcs/month
Product Description
479-8991 4798991 Secondary Air Filter Fits C.A.T Engine Filtration System
Product Specifications
Part Name  Secondary Air Filter
Part Number 479-8991 4798991 
Brand C.A.T (100% Original Guaranteed)
Place Of Origin Multiple Origins
Quality Standard Genuine Standard
Condition 100% Brand New
MOQ 1 Piece
Packaging Original CaT Sealed Packaging with Authenticity Label

Product Features
  • High-Flow Synthetic Safety Media & Ultimate Engine Protection: Serves as a inner safety barrier nested within the primary air filter assembly. Built with high-porosity flame-retardant synthetic media that maintains negligible airflow resistance under normal loads, while guaranteeing 100% dust interception into the engine manifold during primary filter replacement or primary element damage.
  • Reinforced Structural Cage & Anti-Collapse Design: Engineered with an ultra-rigid thermoplastic and electro-galvanized mesh support cage designed to withstand severe intake vacuum pressures from high-displacement engines (C13/C15/C18). Prevents structural deformation or filter media collapse even under high pressure differentials caused by wet, heavily loaded primary elements. 
  • Radial-Seal Elastomeric Interface for Leak-Free Lockout: Integrates a precision-molded, high-resilience polyurethane radial-seal gasket. Creates a 360-degree, vibration-proof air-tight lock upon installation against the air cleaner housing tube, effectively eliminating dust bypass without requiring manual bolt-clamping forces. 
Friendly Reminder: Please ensure this part number matches your machine model and serial number. We strongly recommend checking with the official parts catalog or providing your machine serial number before purchase to avoid ordering the wrong part.

479-8991 4798991 Secondary Air Filter Fits C.A.T Engine Filtration System

479-8991 4798991 Secondary Air Filter Fits C.A.T Engine Filtration System

Contact Information
Contact Person Sylvia (International Sales Specialist) Anna
Whatsapp/WeChat +86 19120194795 +86 13229460031
Email sale01@uniwaypart.com -

Send your inquiry directly to us

Privacy Policy China Good Quality Excavator Main Parts Supplier. Copyright © 2026 Guangzhou Youdao Machinery Equipment Co., Ltd. . All Rights Reserved.