Unmatched Quality and Specifications for Yanmar 4TNV94 Engine Parts

Our high-performance Piston Ring Set is engineered to meet or exceed OEM specifications for the widely used Yanmar 4TNV94 engine, vital for various Kubota and Yanmar heavy machinery applications. This precision component is crucial for maintaining optimal compression and oil control.

Core Specifications

Ring Dimensions and Part Numbers

Global Trade and Warranty Information

We ensure swift availability and reliable quality for all our diesel engine parts, including cylinder liner kits and connecting rod bearings.

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We accept secure payments via: T/T, PayPal, and MoneyGram.

Honour Time Machinery Limited: Your Genuine Diesel Engine Parts Supplier

Honour Time Machinery Limited is a premier global provider specializing in complete engine assemblies and spare parts for leading construction and heavy machinery brands. We are experts in providing heavy equipment repair solutions, offering components for Cummins, Komatsu, Caterpillar, Isuzu, Kubota, Yanmar, and Weichai engines.

Our comprehensive inventory includes everything needed for a full engine overhaul: Cylinder Liners, Pistons, Piston Rings, Crankshaft Main Bearings, Connecting Rod Bearings, Thrust Washers, Complete Gasket Sets, Fuel Pumps, Fuel Injectors, Crankshafts, Turbochargers, Water Pumps, Oil Pumps, Engine Blocks, Cylinder Heads, and Connecting Rods.

Explore our solutions for: Caterpillar engine overhaul kits, Komatsu excavator spares, Isuzu engine cylinder head price, Kubota mini-excavator maintenance, Weichai truck engine assembly, reliable engine component export, cylinder liner manufacturer direct, piston ring set factory price, connecting rod bearing specs, thrust washer installation guide, fuel injection pump rebuilding, turbocharger performance upgrade, water pump replacement cost, oil pump failure diagnosis, engine block remanufacturing, cylinder head cracking repair, diesel engine complete gasket set, and crankshaft grinding service.

Essential Construction Machinery Component Glossary

Understanding your heavy equipment parts is key to efficient maintenance. Here are 10 critical components:

• Cylinder Head Gasket: Seals the combustion chamber between the block and head. Located on the top of the engine block. Cummins QSB4.5 Cylinder Head Gasket

• Piston Pin: Connects the piston to the connecting rod. Located inside the piston skirt. Komatsu PC300-7 Piston Pin

• Hydraulic Pump Gear: Drives the main hydraulic pump for machine movement. Located in the gear train or front of the engine. Caterpillar 320D Hydraulic Pump Gear

• Fuel Injector Nozzle: Atomizes and sprays fuel into the combustion chamber. Located in the cylinder head. Isuzu 6BG1 Fuel Injector Nozzle

• EGR Cooler: Cools exhaust gases before they are recirculated. Located externally near the manifold. Kubota V3800 EGR Cooler

• V-ribbed Belt: Drives ancillary components like the alternator and water pump. Located around the crankshaft pulley. Yanmar 4TNV98 V-ribbed Belt

• Oil Cooler Core: Cools the lubricating oil before it returns to the sump. Located near the oil filter housing. Weichai WP10 Oil Cooler Core

• Track Adjuster Cylinder: Maintains tension on the excavator track chain. Located within the track frame. Komatsu PC200-8 Track Adjuster Cylinder

• Torque Converter: Transmits power from the engine to the transmission (on certain equipment). Located between the engine and transmission. Caterpillar 950H Torque Converter

• Oil Pan Gasket: Seals the joint between the oil pan and the engine block. Located at the bottom of the engine. Cummins B3.3 Oil Pan Gasket

Diesel Engine Health: Troubleshooting and Maintenance

A common issue in machinery like the Caterpillar 320D Excavator with a C6.4 engine is excessive white smoke under load, often due to coolant leaking into the combustion chamber.

Troubleshooting: White Smoke

Cause: Often a failure of the cylinder head gasket or a crack in the cylinder head/block. The coolant is burned off, producing dense white smoke (steam).

Solution: Perform a cooling system pressure test. If pressure drops, use an exhaust gas analyzer in the coolant reservoir to detect combustion gases. If confirmed, the engine must be stripped down to replace the Caterpillar C6.4 head gasket or, if necessary, the entire cylinder head assembly.

Routine Engine Maintenance Tips

• Oil Analysis: Implement routine oil sampling to detect abnormal wear metals (indicating connecting rod bearing wear or piston ring failure) and coolant contamination before major failure occurs.

• Turbocharger Inspection: Check for excessive shaft play and oil leaks in the turbocharger to ensure optimal air intake pressure, especially critical on high-output engines like the Cummins ISX15 Turbocharger.

• Cooling System Flush: Annually flush the cooling system and replace the coolant to prevent cavitation and corrosion, which can damage the Yanmar 4TNV94 water pump.