Exhaust Valve Guide 3904409 for 6BT5.9 Diesel Engine

Keywords: 3904409 exhaust valve guide, 6BT5.9 valve guide sleeve, 6BT5.9 diesel engine exhaust valve guide, engine valve train spare parts, construction machinery engine components, aftermarket replacement valve guide

Product Overview

Exhaust Valve Guide Part No.3904409 is an important valve‑train component for 6BT5.9 diesel engine. It acts as positioning sleeve for exhaust valve, guiding the exhaust valve to make stable reciprocating movement, and transferring partial heat from valve stem to cylinder head. This replacement exhaust valve guide resolves common engine faults including valve stem excessive wear, valve sealing failure, engine oil burning, exhaust gas leakage and valve abnormal noise, which are caused by long‑time high‑temperature erosion and inner bore abrasion. Every valve guide is strictly tested for inner hole dimension, outer diameter tolerance and surface finish before delivery.

Detailed Specifications

Key Features & Advantages

• High‑precision machining size, perfect interference fit with 6BT5.9 cylinder head.
• Wear‑resistant high‑hardness material, resist high‑temperature exhaust erosion, extend service life.
• Smooth inner bore surface, reduce exhaust valve stem friction loss, keep valve moving flexibly.
• Effectively reduce engine oil consumption and exhaust blow‑by, restore valve sealing performance.
• Essential spare part for 6BT5.9 engine overhaul and valve system maintenance.

Application Scope

Fit Equipment: Excavators, wheel loaders, heavy‑duty trucks and generator sets equipped with 6BT5.9 diesel engine. ‑ Widely used in engine repair workshops, construction machinery refurbishment and full engine overhaul 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 anti‑collision inner packing, prevent surface scratch 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.