Your Trusted Source for Diesel Engine Components

Honour Time Machinery Limited is the premier global supplier of heavy equipment maintenance parts, specializing in Diesel Engine Components Supply. We provide comprehensive engine overhaul rebuild solutions for major industrial brands. Whether you need a Yanmar 4TNE94 Piston with the part number 129931-22100 or a complete 4D94LE Engine Rebuild Kit, we ensure reliable engine spare parts and high-quality cylinder head sourcing. Our inventory is extensive, covering everything from minor seals to a full engine assembly.

Focus on Core Engine Parts and Rebuild Solutions

We specialize in critical internal engine components. Look no further for your piston and liner replacement needs. Our flagship products include the Piston Ring Set, specifically the 127610-33612 / 12761033612 for Yanmar engines. We also stock complete sets of connecting rod bearings and crankshaft bearings (main and rod), thrust washers, and overhaul rebuild kits. We offer reliable bearing set supplier services and engine water pump alternative options for cost-effective maintenance.

Partner Brands and Global Component Sourcing

Our product range spans across engines from Cummins, Komatsu, Caterpillar, Isuzu, Kubota, Yanmar, and Weichai. We are an Isuzu diesel engine specialist and a recognized Cummins engine rebuild expert. We provide high-quality Caterpillar genuine components and dedicated Kubota engine parts supplier solutions. From fuel injection pump diagnosis to turbocharger upgrade options, we cover all machinery engine replacement parts required for your equipment's longevity. Our product line includes diesel pumps, injectors, crankshafts, turbochargers, water pumps, oil pumps, cylinder blocks, cylinder heads, and connecting rods.

Product Details and Specifications

Detailed specifications for our high-demand Piston 129931-22100 component.

Technical Glossary: Key Engine Component Definitions

1. Cylinder Liner: A cylindrical part fitted into the engine block to form the cylinder. It is installed in the Cylinder Block. Example keyword: Cummins B3.3 Cylinder Liner.

2. Piston Ring: Seals the combustion chamber, transfers heat from the piston, and regulates engine oil. Installed on the Piston. Example keyword: Kubota V2203 Piston Ring Set.

3. Crankshaft Main Bearing: Supports the rotating crankshaft. Installed in the main bearing bores of the Cylinder Block. Example keyword: Caterpillar 320D Main Bearing.

4. Connecting Rod Bearing (Rod Bearing): Connects the piston to the crankshaft, allowing rotational movement. Installed in the Connecting Rod big end. Example keyword: Isuzu 4HK1 Connecting Rod Bearing.

5. Fuel Injector: Sprays fuel into the combustion chamber. Installed in the Cylinder Head. Example keyword: Yanmar 4TNV98 Fuel Injector.

6. Turbocharger: Compresses the air entering the engine. Installed on the Exhaust Manifold. Example keyword: Weichai WP10 Turbocharger Assembly.

7. Water Pump: Circulates coolant through the engine and radiator. Mounted on the Engine Front Case. Example keyword: Komatsu PC200-8 Water Pump.

8. Oil Pump: Circulates lubricating oil throughout the engine. Installed in the Oil Sump/Engine Block. Example keyword: Caterpillar 3306 Oil Pump.

9. Thrust Washer: Controls the fore and aft movement of the crankshaft. Installed against the Crankshaft. Example keyword: Cummins M11 Thrust Washer Kit.

10. Cylinder Head: Sits above the cylinders, forming the combustion chamber. Bolted to the Engine Block. Example keyword: Kubota D902 Cylinder Head Assembly.

Common Engine Failure and Solution: Komatsu PC300-7 Engine

Equipment and Model: Komatsu Excavator PC300-7 (Powered by Cummins QSB6.7 engine).

Failure Symptom: The engine starts but rapidly loses power under load and exhibits excessive blue/white smoke from the exhaust after extended idling. Investigation reveals high oil consumption and significant blow-by.

Root Cause and Solution: The primary cause is typically worn Piston Rings and Cylinder Liners, compromising the combustion seal. The solution requires a full engine overhaul rebuild kit replacement, including new Piston Ring Sets (like the 127610-33612 type), Cylinder Liners, and all associated gaskets and seals. Timely replacement is critical to prevent damage to the Cylinder Block and Piston itself, ensuring your Komatsu PC300-7 returns to peak performance.