Piston Ring Kit 4941138 for QSB3.3 B3.3 Diesel Engine

Keywords: 4941138 piston ring kit, QSB3.3 B3.3 engine piston rings, excavator diesel engine piston ring set, construction machinery engine overhaul spare parts

Product Overview

Piston Ring Kit Part No.4941138 is an essential overhaul spare part specially matched for QSB3.3, B3.3 diesel engine, widely used on excavators and heavy‑duty construction machinery. The complete ring kit realizes cylinder sealing, oil scraping and heat transfer inside engine cylinder. It effectively improves issues including excessive oil consumption, blow‑by gas, power loss caused by worn, stuck or broken original piston rings. Every piston ring kit has passed strict dimensional and surface performance inspection before export packaging and shipment.

Detailed Specifications

Key Features & Advantages

• Advanced surface treatment alloy material, excellent wear‑resistance, heat‑resistance and anti‑fatigue performance under long‑time heavy‑load operation.
• Precision‑cut ring opening and surface profile, achieve reliable cylinder sealing and efficient oil‑scraping performance.
• Effectively eliminate engine oil burning, gas blow‑by, insufficient power and high exhaust smoke caused by failed original piston rings.
• Strict size tolerance control, perfect match with corresponding piston and cylinder liner, convenient for direct installation.
• Ideal spare part for QSB3.3 B3.3 engine maintenance 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 QSB3.3 / B3.3 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 carton 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.