Export Ready

Yanmar 4TNV98 Cylinder Block

Name: Yanmar 4TNV98 Cylinder Block
Brand: Komotashi
SKU: 00258
Rating: 4.8 (1 reviews)

Demo Cylinder Block (4TNV98 Engine)

✓ Product: Cylinder Block
✓ For Yanmar 4TNV98 Inline 4-Cylinder Diesel Engine
✓ Widely used for mini excavators, forklifts, skid steer loaders and agricultural machinery engine overhaul

Yanmar 4TNV98 cylinder block is the core load-bearing foundation component of Yanmar 4TNV98 inline four-cylinder industrial diesel engine. It is integrally cast with high-strength wear-resistant alloy cast iron, equipped with built-in lubricating oil galleries and cooling water channels. The compact integral structure delivers reliable structural rigidity, capable of enduring long-term alternating loads, high temperature and pressure. It serves as a critical replacement spare part for overhauling small construction machinery and agricultural power equipment.

Overview

Product Details

Product Name: Cylinder BlockApplicable Engine: Yanmar 4TNV98Material: High-strength wear-resistant alloy cast ironMatching Equipment: Mini Excavators, Forklifts, Skid Steer Loaders, Agricultural Machinery

Manufactured strictly in accordance with OEM dimensional tolerances for direct bolt-on replacement without modification. Main bearing saddles, cylinder bores and mounting joint surfaces are precisely bored and milled to guarantee assembly concentricity and flatness. Optimized integrated flow channel design ensures stable lubrication circulation and balanced heat dissipation. All finished cylinder blocks pass non-destructive flaw detection and hydraulic pressure leakage testing before delivery. Bare cylinder blocks and pre-assembled blocks fitted with cylinder liners are both available for supply.

Product Advantages

High Rigidity Alloy Cast Iron Structure

Premium high-strength wear-resistant alloy cast iron casting with excellent overall rigidity, outstanding anti-deformation and anti-cracking performance, adapting to complex farm and small engineering working environments
One-piece integrated oil and cooling water passages eliminate splicing leakage risks and effectively reduce oil seepage and coolant leakage faults
Compact four-cylinder layout supports long-time continuous stable operation and extends engine overall service life

Precision OEM Standard Machining

Fully processed to original factory drawing tolerance standards, consistent dimensional accuracy for all hole positions and mounting surfaces to achieve seamless assembly matching
High-precision finishing of main bearing housings prevents eccentric wear of crankshaft and prolongs service life of crankshaft and bearing shells
Ultra-fine sealing surface machining thoroughly avoids oil, water and air leakage after installation, lowering one-time overhaul failure rate

Wide Matching & Stable Aftermarket Supply

Exclusively matched with Yanmar 4TNV98 naturally aspirated and turbocharged four-cylinder power units, extensively equipped on various small engineering and farming equipment
Mature aftermarket small engine spare part with sufficient stock and fast delivery
Flexible supply modes: bare cylinder blocks or finished units pre-installed with cylinder liners for bulk order customization