Cylinder Head Assembly 5272457 for Engine B4.5 B6.7 ISB6.7 ISBE QSB6.7 QSB7

Keywords: 5272457 cylinder head assembly, B4.5 B6.7 ISB6.7 ISBE QSB6.7 QSB7 engine cylinder head, excavator diesel engine cylinder head assembly, construction machinery engine overhaul spare parts

Product Overview

Cylinder Head Assembly Part No.5272457 is a critical core component specially matched for B4.5 B6.7 ISB6.7 ISBE QSB6.7 QSB7 diesel engines, widely used on excavators and heavy‑duty construction machinery. It undertakes intake, exhaust, fuel injection and combustion sealing functions of the engine. Effectively solve engine overheating, air leakage, poor compression, difficult starting and excessive exhaust smoke caused by cracking, deformation and valve damage of original cylinder head assembly. Each cylinder head assembly passes strict pressure‑testing and dimensional inspection before export wooden case packaging and delivery.

Detailed Specifications

Key Features & Advantages

• High‑strength cast alloy material, excellent pressure‑resistance, high‑temperature resistance and anti‑deformation performance under heavy‑duty working conditions.
• Precise machining of valve seats, valve guides and mounting threaded holes, guarantee accurate valve movement and stable combustion chamber sealing.
• Effectively eliminate failures including air leakage, insufficient cylinder compression, hard startup, engine overheating and heavy exhaust smoke caused by damaged original cylinder head assembly.
• Strict hydrostatic pressure leak test, no internal sand holes or cracks, stable long‑term running performance.
• Perfect fit for B4.5 B6.7 ISB6.7 ISBE QSB6.7 QSB7 engine repair and overhaul projects.
• Stable interchangeability, can directly replace original OEM spare parts.

Application Scope

Fit Equipment: Excavators and other heavy‑duty construction machinery equipped with B4.5 B6.7 ISB6.7 ISBE QSB6.7 QSB7 diesel engine ‑ Widely used for machinery repair shops, engine rebuilding factories and heavy‑duty equipment overhaul services.

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 wooden case with shock‑proof protective packaging, avoid collision and 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.