Piston Ring Kit 4089644 For ISC ISL9 ISLE4 QSB3.3 QSC8.3 QSL9 Engine

Keywords: 4089644 piston ring kit, ISC ISL9 ISLE4 piston ring set, QSB3.3 QSC8.3 QSL9 engine piston rings, excavator diesel engine spare parts, aftermarket replacement piston ring kit

Product Overview

Piston Ring Kit Part No.4089644 is a complete sealing assembly for ISC, ISL9, ISLE4, QSB3.3, QSC8.3, QSL9 series diesel engines. It forms reliable sealing between piston and cylinder liner, prevents high‑pressure combustion gas leaking into crankcase, and scrapes excess lubricating oil from cylinder wall to control oil consumption. This replacement kit resolves typical faults including engine oil burning, black exhaust smoke, blow‑by gas and power reduction caused by original piston ring wear, elasticity attenuation and enlarged ring gap. Every piston ring kit passes strict dimension inspection, hardness test and end‑gap detection before delivery.

Detailed Specifications

Key Features & Advantages

• ✅ High‑quality alloy raw material with special surface treatment, outstanding wear‑resistance for long‑time heavy‑duty operating environment.
• ✅ Precisely controlled ring gap and thickness, excellent sealing performance, effectively lower engine oil consumption and blow‑by gas.
• ✅ Stable elastic property, maintain proper pressing force, resist thermal deformation under high‑temperature working condition.
• ✅ Effectively eliminate oil‑burning, black smoke and insufficient power caused by aged and worn original piston rings.
• ✅ Complete matching dimensions, easy installation, perfect overhaul spare part for multi‑model engine repair.

Application Scope

Fit Equipment: Excavators and heavy‑duty machinery equipped with ISC / ISL9 / ISLE4 / QSB3.3 / QSC8.3 / QSL9 diesel engine ‑ Widely applied for engine repair workshops and routine equipment 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.