Original QSL9 Diesel Engine Exhaust Manifold 3937478

Keywords: 3937478 exhaust manifold, QSL9 engine exhaust manifold, diesel engine exhaust manifold, excavator heavy‑duty machinery spare parts, construction machinery exhaust system replacement components

Product Overview

Exhaust Manifold Part No.3937478 is critical exhaust system component for QSL9 diesel engines, widely fitted for excavators and heavy‑duty engineering machinery. It collects exhaust gas from each cylinder and delivers exhaust gas smoothly to turbocharger, ensuring normal exhaust circulation for the whole engine. This exhaust manifold solves common troubles including exhaust gas leakage, manifold cracking, engine power reduction and loud abnormal noise caused by original manifold aging and damage. Each exhaust manifold undergoes strict casting inspection, flatness checking and air‑tightness test before packing and shipment.

Detailed Specifications

Key Features & Advantages

• High‑strength cast iron material, excellent high‑temperature resistance, thermal shock resistance and anti‑deformation performance under long‑time high‑temperature exhaust working conditions.
• Precision casting and machining process, flat mounting sealing surface, effectively prevent exhaust gas leakage.
• Optimized internal flow channel design, smooth exhaust flow, lower exhaust back‑pressure, keep stable engine power output.
• Effectively resolve exhaust leakage, abnormal noise, power loss and premature turbocharger wear caused by cracked original exhaust manifold.
• Advanced high‑temperature anti‑oxidation surface treatment, prolong service life of exhaust related accessories.
• Perfect match for QSL9 engine exhaust system maintenance and overhaul projects.
• Direct replacement installation, cut down overall maintenance cost for heavy‑duty equipment.

Application Scope

Fit Equipment: Excavators and heavy‑duty construction machinery equipped with QSL9 diesel engine ‑ Widely used in engine repair shops and heavy‑duty equipment 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

• Export‑grade carton packaging with shock‑proof filler, avoid collision damage for casting parts 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.