Are you facing engine knock or high oil consumption in your heavy machinery? Honour Time Machinery Limited provides high-quality China aftermarket solutions to solve these abnormal failure issues. We specialize in supplying premium engine components, including the Komatsu 4D95 Crankshaft (Part Number: 6204-31-3100 / 6204313100) and overhaul kits.
As a leading supplier, our main business covers complete engine assemblies and spare parts for top brands like Cummins, Komatsu, Caterpillar, Isuzu, Kubota, Yanmar, and Weichai. Our extensive inventory includes precision-engineered Cylinder Liners, Pistons, Piston Rings, Crankshaft Bearings, Connecting Rod Bearings, Thrust Washers, Overhaul Gasket Kits, Diesel Pumps, Fuel Injectors, Turbochargers, Water Pumps, Oil Pumps, Cylinder Blocks, Cylinder Heads, and Connecting Rods.
Whether you need a durable cast iron cylinder block replacement, a forged steel crankshaft for heavy-duty excavators, or a complete gasket set for engine rebuilding, Honour Time Machinery guarantees parts that meet OEM specifications for fit and performance.
We are a source factory offering direct sales and foreign trade export services. We support the customized development of various engine cylinder liners to meet your specific needs.
| Comprehensive Engine Spare Parts Catalog | ||
|---|---|---|
| Liner Kit | Piston | Piston Ring |
| Gasket Kit | Gasket Head | Crankshaft |
| Valve Guide | Nozzle | Bearing |
| Pressure Switch | Flameout Solenoid | Monitor |
| Radiator | Main Valve | Belt |
| Engine Bearing | Cylinder Block | Valve Seat |
| Accelerator Motor | Transmitter | Fan Cooling |
| Brand | Model Series A | Model Series B |
|---|---|---|
| KOMATSU | 3D82, 3D84 | 4D105, 6D95 |
| 6D108, 6D110 | 4D84, 4D95 | |
| 6D102, 6D105 | 6D114, 6D170 | |
| S6D95, S6D102 | S6D105, S6D108 | |
| S6D110, S6D125 | S6D140, S6D170 | |
| S4D95, S4D102 | S4D105, PC200-7 | |
| KOBELCO | J05E, 6D34T | 6D16, J08E |
| 6D22T, 6D24T | 6D16T, J05E | |
| 6D34, J08E | SK200-8, SK350-8 | |
| CATERPILLAR | 3114, 3116 | C4, C6 |
| 3064T, S6K | C7, C-9 | |
| C13, 3306 | 3406, C15 | |
| MITSUBISHI | 4D34, 4D24 | K4M, S3Q2 |
| 6D16, 6D24 | S4KT, 6D40 | |
| ISUZU | 3LD1, 4LE1 | 4BG1, 4HK1 |
| 6SD1, 6WG1 | 4LE2, 4JB1 | |
| 6BG1, 6HK1 | 6WF1, 6RB1 | |
| YANMAR | 4D88E, 4TNE84 | 4TNV88, 4TNV94L |
| 4TNE88, 4TNE94 | 4TNV98, 4TNV106 | |
| HINO | J05E, J08E | V25C, EF750 |
| P11C, V21C | H06CT, H07D | |
| CUMMINS | QSB6.7, QSM11-C | B5.9-C, B3.9-C |
| QSM11, C8.3-C | ISF2.8, ISF3.8 | |
| VOLVO | D6D, D6E | D9E, D12D |
| D7D, D7E | D12E, D16D |
| Product Name | Crankshaft (High Strength Alloy Steel) |
|---|---|
| Engine Model | Komatsu 4D95 / S4D95 |
| Part Number | 6204-31-3100 (Non-symbol format: 6204313100) Note: For 3G-2720, refer to 3G2720 |
| OEM/ODM Service | Provided (Custom dimensions available) |
| Condition | 100% New Aftermarket |
| MOQ | 1 Piece |
| Packing | Standard Export Wooden Cases or Pallets |
| Supply Ability | 1000 Pieces per Month |
| Payment Terms | T/T, Western Union, MoneyGram |
| Delivery Methods | Express: DHL, FedEx, EMS, UPS or by Air / Sea Freight |
Understanding where these components fit is crucial for accurate maintenance. Here are common parts with their specific equipment applications:
1. Turbocharger (Komatsu PC200-8 / 6D107 Engine): Located on the exhaust manifold; increases engine power by forcing extra air into the combustion chamber.
2. Water Pump (Cummins QSB6.7 / Excavator): Mounted on the front of the cylinder block; circulates coolant to prevent overheating.
3. Fuel Injector (Caterpillar 320D / C6.4 Engine): Installed in the cylinder head; delivers precise fuel spray for combustion.
4. Main Bearing (Isuzu 4HK1 / ZX200-3): Located between the crankshaft and engine block; reduces friction during rotation.
5. Alternator (Kubota V2203 / Mini Excavator): Attached to the engine side; charges the battery and powers electrical systems.
6. Hydraulic Pump Solenoid (Yanmar 4TNV98 / ViO80): Attached to the main pump; controls hydraulic fluid flow and pressure.
7. Cylinder Head Gasket (Weichai WD10 / Loader): Sits between the block and head; seals the combustion chamber and coolant passages.
8. Starter Motor (Caterpillar 3306 / D6 Dozer): Mounted on the flywheel housing; initiates engine cranking.
9. Oil Cooler (Volvo D6D / EC210B): Positioned near the oil filter; dissipates heat from engine oil.
10. Connecting Rod (Komatsu 4D95 / PC60-7): Connects the piston to the crankshaft; transfers reciprocating motion into rotating motion.
Problem: The excavator hydraulic oil or engine oil temperature rises abnormally during operation.
Diagnosis & Solution:
Check Radiator/Cooler: Debris often blocks airflow. Clean the fins of the oil cooler and radiator thoroughly.
Fan Belt Tension: Loose belts reduce cooling fan efficiency. Inspect and tighten the fan belt on the 6D107 engine.
Thermostat Check: A stuck thermostat prevents coolant circulation. Replace with a genuine or high-quality aftermarket thermostat.
Oil Quality: Degraded oil loses viscosity. Perform a complete oil change using the recommended grade.
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