135-5787 Excavator Air Filter Element

Product Overview

The 135-5787 Excavator Air Filter Element provides critical secondary protection for heavy-duty excavator engines. Installed inside the primary outer filter housing, this inner air filter element acts as a fail-safe barrier that prevents dust, fine particles, and contaminants from entering the engine during primary filter servicing, or in the rare event of primary filter damage or seal failure. Constructed with high-performance wrapped synthetic fiber media for superior fine particle capture and dust holding.

Key Features

• Fine Particle Filtration: Wrapped synthetic fiber media effectively traps sub-micron particles, protecting sensitive engine components from abrasive wear caused by fine dust ingress
• Safety Backup Design: Provides an essential secondary barrier during primary filter maintenance, ensuring the engine intake remains protected even when the outer filter is removed for servicing
• Secure PU Sealing: Polyurethane end caps deliver consistent, reliable sealing to prevent unfiltered air bypass and maintain full filtration integrity under vibration and temperature cycling
• OEM Specification Match: Direct replacement for CAT 135-5787 filter element specifications, ensuring perfect fit and performance in compatible excavator models
• Quality Assurance: Manufactured under ISO 9001:2015 quality management with 100% inspection for dimensional accuracy and filtration performance before shipment

Technical Specifications

Application

Designed for CAT 320D, 325D, 330D, and 336D excavator series as well as compatible heavy equipment. Functions as an inner air filter element in dual-stage air filtration systems, installed concentrically inside the primary outer filter element. Provides critical backup engine protection in construction, mining, quarry, and earthmoving environments where airborne dust concentrations are high.

Packaging & Delivery

Each air filter element is individually sealed in protective plastic wrap with end cap guards, then packed in a WNRLN branded color box. Master cartons use export-grade corrugated material with moisture-resistant lining. Stock items typically ship within 3-7 working days; production orders within 15-25 working days. Custom labeling and packaging solutions available for volume orders.