3904409 Valve Stem Guide for Genuine Machinery Engine 4BT3.9 6BT5.9

3904409 Valve Stem Guide for cumm-ins 4BT3.9 6BT5.9 Machinery Engine Replacement

Search Keywords

3904409, valve stem guide, engine valve guide, 4BT3.9 6BT5.9 valve stem guide, cumm-ins 4BT 6BT spare parts, construction machinery engine parts

Product Overview

ARKENOU Valve Stem Guide 3904409 fits cumm-ins 4BT3.9 and 6BT5.9 diesel engines. Made of high-performance cast bronze alloy with excellent wear resistance and heat dissipation. It guides the valve stem for stable linear movement, keeps valves aligned correctly, reduces friction and prevents oil leakage through valve stems. It is an essential overhaul component to restore engine compression and eliminate blue smoke issues.

Detailed Specifications

Key Features & Advantages

• ✅ High-Quality Cast Bronze Material Superb wear resistance, thermal conductivity and anti-seizure property under high temperature.
• ✅ Precision Inner & Outer Diameter Machining Strict tolerance control for perfect press-fit into cylinder head and smooth sliding of valve stem.
• ✅ Stable Dimensional Consistency Minimize valve tilt, protect valve seat and reduce premature wear.
• ✅ OEM Equivalent Size for Direct Replacement No extra machining required during engine overhaul.
• ✅ Full Batch Inspection Before Shipment Dimensional and material testing to guarantee quality.

Application Scope

For cumm-ins 4BT3.9 / 6BT5.9 diesel engines, widely applied to:

• Excavators, loaders, bulldozers
• Medium-duty trucks
• Generator sets and engineering machinery

Our Company Advantage

We are a professional supplier of full range cumm-ins engine spare parts, including intake & exhaust valves, valve stem guides, valve springs, valve retainers, belts, filters, gaskets, pistons and overhaul kits.

• Ready stock for multiple cumm-ins engine series
• Competitive factory direct price
• Fast shipment for in‑stock goods
• Accept mixed container order for one‑stop spare parts purchasing
• Provide professional technical matching service for your part number inquiry

Packaging & Shipping

1. Individually packed in ARKENOU labeled plastic bag
2. Outer export carton for sea transportation
3. Support sea freight, air freight, express delivery for small trial order
4. Full export document can be offered (Commercial Invoice, Packing List)

Contact Us

If you need valve stem guides or other engine spare parts for cumm-ins machinery engines, please send your part list to us. We will offer you our best quotation immediately.