Hydraulic Tank Breather Cap 4178684 Include Seat Base for 110 120 135C 160C 200CLC 230LC 270LC 330LCR 450LC 490 75C

Keywords: 4178684 hydraulic tank breather cap, hydraulic reservoir vent cap with base, excavator hydraulic tank breather, 110 120 135C breather cap, construction machinery hydraulic spare parts, aftermarket replacement breather cap assembly

Product Overview

Hydraulic Tank Breather Cap Part No.4178684 comes complete with seat base, designed for multiple excavator models including 110, 120, 135C, 160C, 200CLC, 230LC, 270LC, 330LCR, 450LC, 490, 75C. This vent cap balances internal air pressure inside hydraulic tank while preventing dust, dirt, moisture and impurities from entering hydraulic system. It avoids tank deformation, oil overflow and pressure abnormality caused by temperature change and oil level fluctuation. This aftermarket assembly solves common issues such as clogged vent, oil mist leakage, dirt contamination into hydraulic oil and cap aging damage.

Detailed Specifications

Key Features & Advantages

• Complete assembly including cap and matching seat base, direct replacement without extra modification.
• Good air circulation performance, effectively balance hydraulic tank internal and external pressure.
• Dust‑proof and moisture‑proof structure, protect hydraulic oil from outside pollutants, extend service life of hydraulic components.
• Wear‑resistant material, anti‑aging, suitable for harsh construction site working conditions.
• Simple installation, perfect fit for corresponding excavator hydraulic tank mounting position.

Application Scope

Fit Equipment: 110,120,135C,160C,200CLC,230LC,270LC,330LCR,450LC,490,75C series excavators. ‑ Widely used for machinery repair workshops, equipment refurbishment and routine maintenance projects.

Our Company Advantage

• We are professional supplier of full‑range construction machinery spare parts, supplying engine parts, hydraulic parts, electrical parts, seal kits and complete overhaul kits.
• Large ready stock for various machinery spare parts
• Factory‑direct wholesale competitive price
• Mixed‑order & one‑stop spare‑parts procurement supported
• Professional part‑number matching technical support service

Packaging & Shipping

• Neutral export carton with shock‑proof inner packing, prevent collision damage during long‑distance transportation
• Multiple shipping options: sea freight, air freight, international express for small trial orders
• Export documents such as Commercial Invoice, Packing List can be provided.

Contact Us

If you need more excavator spare parts or other construction machinery replacement components, please send your parts list to us. We will offer our best quotation for you quickly.