Sourcing High-Performance Engine Components for Heavy Machinery Maintenance and Overhaul
As a reputable source manufacturer, Honour Time Machinery Limited offers factory-direct sales and specializes in custom development for all types of diesel engine cylinder liners. We are your reliable partner for foreign trade export, ensuring precision-engineered sleeves for diverse industrial needs.
We develop and supply liners for critical models like Cummins QSB4.5 Liner, Caterpillar 3406 Liner, and Kubota V3800 Liner.
Discover the high-demand components available from Honour Time Machinery Limited for the powerful Komatsu 4D95A engine. Our commitment to precision ensures perfect fit and long-term reliability for your heavy machinery. We stock and supply top-tier Cylinder Liner, Piston, and Piston Ring sets, alongside complete engine rebuild essentials.
| Component | Engine Model No. | Part Number (Symbolized) | Part Number (Clean) |
|---|---|---|---|
| Engine Model | 4D95A | N/A | N/A |
| Piston | 4D95A | 6202-33-2160 / 6202-32-2121 | 6202332160 / 6202322121 |
| Piston Ring Set | 4D95A | 6204-31-2202 | 6204312202 |
We provide comprehensive technical data to ensure you order the exact components for your Komatsu PC75UU-2 piston and engine rebuild. Accuracy is paramount for every heavy equipment maintenance parts order.
| Piston (P/N: 6202-33-2160 / 6202-32-2121) | Cylinder Liner (Inferred P/N: 6202-21-2110) | Piston Ring Set (P/N: 6204-31-2202) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Bore Diameter: | 95 mm | No. of Cyl: | 4 | Liner No: | 6202-21-2110 / 6202212110 | RIK No: | Available | TP No: | Available | ||
| Total Length: | 97 mm | Comp Height: | 56.5 mm | Total Length: | 165 mm | Top Outside: | 100.5 mm | NPR No: | Available | Top Ring: | 3.0 mm (Keystone) |
| Chamber Dia: | 54 mm | Ring Groove: | 3.0K / 2.0 / 4.0 mm | Flange Depth: | 9.0 mm | Surface Treatment: | Honed/Phosphated | 2nd Ring: | 2.0 mm | Oil Ring: | 4.0 mm |
| Pin Size: | 34 x 78 mm | Bushing No: | Available | FF/SF: | FF (Full Finished) | Inside Bore: | 95 mm | Bottom Outside: | 100 mm | Bushing No: | N/A |
We are proud to be a leading international supplier of genuine Komatsu parts alternative and aftermarket engine components. Our extensive inventory supports a vast range of construction and agricultural equipment, focusing on engines from cummins, komatsu, Caterpillar, isuzu, kubota, yanmar, and weichai.
Our core product line ensures the success of your engine rebuild essentials and vehicle longevity:
Cylinder Liner (Sleeves) and Piston assemblies
Piston Ring sets and complete diesel engine gasket (Overhaul Kits)
Crankshaft, Connecting Rod, Cylinder Block, and Cylinder Head
Engine Bearings: Main Bearing (Crankshaft Bearing), Connecting Rod Bearing (Con-rod Bearing), and Thrust Washer
Fuel System: Diesel Pump and Injector (Fuel Injector)
Auxiliary Components: Water Pump, Oil Pump, and Turbocharger
Specialized components like the precision engine parts for Cummins QSL9 Cylinder Head Gasket
Understanding your engine is the first step to effective engine rebuilds. Here are 10 critical parts and their roles in various heavy equipment systems, forming important engine rebuild essentials knowledge.
Cylinder Liner: Sleeved part installed inside the engine cylinder block. Komatsu PC200-8 SAA6D107E-1 Cylinder Liner.
Piston Pin: Secures the piston to the connecting rod. Caterpillar D6T C9.3 Piston Pin.
Connecting Rod: Links the piston to the crankshaft. Cummins QSB6.7 Connecting Rod.
Main Bearing: Supports the crankshaft within the cylinder block. Isuzu EX35U 3LD1 Main Bearing.
Injector (Fuel Injector): Sprays fuel into the combustion chamber/pre-chamber. Weichai WP12 Injector.
Thrust Washer: Controls the crankshaft's axial movement (end-play), installed near the main bearings. Kubota KX080-3 V3307 Thrust Washer.
Water Pump: Circulates coolant through the cooling system/engine block. Yanmar ViO50-6 4TNV88 Water Pump.
Oil Pump: Circulates oil through the lubrication system/engine oil sump. Komatsu PC78US-6 4D95LE-3 Oil Pump.
Turbocharger: Compresses air into the intake manifold. Caterpillar 336D C9 Turbocharger.
Cylinder Head Gasket: Seals the combustion pressure between the cylinder head and cylinder block. Cummins QSL9 Cylinder Head Gasket.
Fault: Excessive White Smoke on Startup in a Caterpillar 330D Excavator (C9 Engine).
White smoke is often an indication of either unburnt diesel fuel or coolant being introduced into the combustion chamber. For the Caterpillar 330D C9 Injector system, this is a common issue.
Fuel Leak Check: First, perform a high-pressure leakage test on the fuel system. A sticking or leaking Caterpillar 330D C9 Injector can drip fuel after shutdown, causing raw fuel to burn poorly at startup. Check injector return rates to isolate the faulty unit.
Compression Test: Low compression due to severely worn piston rings or a damaged Cylinder Liner will prevent proper fuel ignition, leading to white smoke. If compression is low, an engine overhaul kit is necessary.
Coolant Check: Check for external coolant leaks and perform a cooling system pressure test. A failed Cylinder Head Gasket can allow coolant to seep into the combustion chambers overnight. If coolant levels drop without external leaks, this is likely the cause.
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