Excavator Engine Spare Parts 4955251 Piston Kit With Piston Ring for cumm-ins ISB ISBE QSB QSB4.5 Engine

Keywords: 4955251, piston kit with ring, cumm-ins ISB piston ring set, ISBE QSB QSB4.5 engine overhaul parts, diesel engine piston repair kit, construction machinery engine replacement spare‑parts

🔹Product Overview

This piston kit with piston ring, OEM part number 4955251, is an essential overhaul spare‑part specially designed for cumm-ins ISB, ISBE, QSB, QSB4.5 diesel engines. It works to seal the combustion chamber, control oil consumption and transfer heat from piston to cylinder wall. Our aftermarket piston ring kit is manufactured with high‑strength alloy steel material, processed with advanced surface hardening treatment. Every set has passed strict hardness, size tolerance and gap inspection. It is the ideal replacement component for engine rebuilding, solving problems of excessive oil burning, low compression power, exhaust blue smoke and piston wear‑out failure.

🔹Detailed Specifications

🔹Key Features & Advantages

✅ Exact OEM Dimension Perfect inner‑outer diameter and end‑gap size, direct fit without modification during engine assembly.

✅ High‑Strength Alloy Material Wear‑resistant, high‑temperature resistant, durable under long‑time high‑load engine working conditions.

✅ Reliable Sealing Performance Good gas‑tightness for combustion chamber, effectively reduce engine oil consumption and prevent blow‑by gas.

✅ Fine Surface Treatment Anti‑friction coating reduces cylinder wall abrasion, extend service life of cylinder liner.

✅ Effectively Fix Common Engine Faults Solve blue smoke exhaust, weak engine power, low cylinder pressure, oil burning and piston‑ring stuck problems.

✅ 100% Pre‑Shipment Quality Inspection Each piston ring set is fully checked on dimension, clearance and appearance defects before shipment.

🔹Application Scope

Compatible with cumm-ins ISB, ISBE, QSB, QSB4.5 diesel engines. Widely used for excavators, trucks, generators and other heavy‑duty construction & transportation equipment engine maintenance and overhaul projects.

🔹Our Company Advantage

We are a professional supplier of full‑series cumm-ins diesel engine spare parts. We supply overhaul kits including piston assemblies, piston rings, cylinder liners, crankshafts, connecting rods, gaskets and injector parts. Rich stock for cumm-ins ISB/QSB series engine repair spare‑parts Competitive factory‑direct wholesale price Shock‑proof carton packaging to protect precision engine parts Support mixed‑container order for one‑stop spare‑parts purchasing Provide professional part‑number matching technical service for your inquiry

🔹Packaging & Shipping

Independent anti‑rust plastic bag + shock‑proof export carton box, avoid scratch and rust damage for metal rings during transit Outer carton reinforced for long‑distance sea transportation Support sea freight, air freight, international logistics for heavy cargo Complete export documents are available (Commercial Invoice, Packing List)

🔹Contact Us

If you need more piston kits, engine overhaul spare parts for cumm-ins engines, please send your parts list to us. We will provide you our best quotation promptly.