Genuine VOLVO Engine Cylinder Liner Kit — 4-Piece Power Rebuild Set

The Genuine VOLVO Premium Heavy-Duty Engine Cylinder Liner Kit (Part Numbers: 20865990 / VOE20865990 / 3884642) is a complete pre-matched 4-piece engine overhaul assembly, professionally developed for VOLVO D7E and D6E electronic common rail diesel engines. Installed inside engine cylinder bores, this integrated repair set fully restores engine compression ratio, thermal efficiency and oil control performance. Adopting integrated matching design avoids assembly mismatch and sealing failure caused by mixed use of scattered parts, effectively solving excessive oil burning, blow-by power drop and exhaust smoke failure, and restoring engine original working performance.

Full Kit Component Introduction

• Alloy Cast Iron Cylinder Liner: Centrifugal casting boron alloy cast iron material, precise plateau honing inner wall, stable oil film retention, low wear and strong heat resistance.

• Heat-Resistant Engine Piston: High-strength forged aluminum alloy structure with reinforced combustion chamber, effectively resisting high temperature thermal deformation and preventing piston cracking.

• Complete Multi-Grade Piston Ring Set: Including compression ring, scraper ring and oil control ring, wear-resistant surface treatment, excellent air tightness and oil scraping effect.

• Hardened Piston Pin & Circlips: High-precision quenched piston pin with firm positioning snap rings, stable connection and no loose displacement.

Technical Specifications

Master Application Fleet Guide

This cylinder liner four-piece set is widely used in full-series VOLVO engineering machinery engine maintenance:

• Heavy Crawler Excavators: EC200D, EC200E, EC210D, EC210E, EC240B, EC250D, EC290B, EC300D

• Backhoe Loaders & Wheel Loaders: BL60, BL71B, L45B, L110E

• Road Construction Machinery: G710B, G746B, G960, G990 Motor Graders, SD135B Compactors, ABG8820B, P8820D Pavers

• Special Engineering Equipment: PL3005D Tracked Pipelayers

Critical B2B Procurement & Maintenance Guidelines

B2B Procurement Strategy

Cylinder liner four-piece set is the core consumable for engine medium and major overhaul. After long-hour operation, cylinder liner wear, piston fatigue aging and piston ring elastic failure will directly cause engine various faults. It is recommended that global spare parts suppliers and engine repair factories purchase according to cylinder quantity, and match with connecting rod bolts 11700326, crankshaft bearings, engine full gasket set and fuel injectors to form complete engine overhaul packages to improve overall overhaul qualification rate.

Common Wear Failure Symptoms

• Serious engine blow-by gas, obvious air outflow from oil filler port, accompanied by blue and white smoke exhaust

• Sharp increase in oil consumption without external oil leakage, insufficient engine power and weakness under heavy load

• Obvious piston knocking sound inside the engine, large internal clearance caused by excessive liner wear

Global Brand Cross-Reference Matrix

All equipment models are only for compatibility reference. Our genuine cylinder liner kits perfectly restore D6E & D7E engine power and extend overall service life.