Caterpillar & Mitsubishi Excavator Parts March 9, 2025
Premium Aftermarket Parts for Caterpillar and Mitsubishi Excavators
In the demanding world of construction and excavation, maintaining your machinery is paramount. Growshine International, a leading provider in engineering machinery parts, heavy truck parts, agricultural machinery parts, and auto parts import and export, offers a comprehensive range of high-quality aftermarket parts for Caterpillar (CAT) and Mitsubishi excavators. Our extensive inventory ensures your equipment operates at peak performance, minimizing downtime and maximizing productivity.
Seal Kits for Hydraulic System Maintenance
Hydraulic systems are the lifeblood of excavators, and leaks can lead to significant performance issues. We provide a wide array of seal kits to address various components:
Boom Cylinder Seal Kit for Caterpillar E120B
Travel Motor Seal Kit for Caterpillar CAT300 & E120B & E311 & CAT324
Adjust Cylinder Seal Kit for Caterpillar CAT300 & E330C & E320C
Swivel Joint Seal Kit for Caterpillar CAT324 & CAT60 & E320C & E330C & CAT300 & E320D
Bucket Cylinder Seal Kit for Caterpillar E330C & E320D & CAT 300 & 320C 322C 325C E320C E320CL E322C
Main Pump Seal Kit for Caterpillar E240 & E70B
Swing Motor Seal Kit for Caterpillar CAT Excavator E300
Engine Components for Reliable Power
Ensure your excavator's engine runs smoothly with our range of engine parts:
Alternator 212-8622 for Caterpillar CAT Engine 3064 3066 Excavator 311C 320C
Oil Pump 4W-2448 8N-8635 6I-1346 for Caterpillar 3304 3306 Engine
Turbo TD06H Turbocharger 5I-8018 for Caterpillar CAT Engine 3066 Excavator 320C 321C 320D
Water Pump 129-1169 for Caterpillar CAT Excavator 322C 325C 325CL M325C Engine 3126B C7 3116
Cooling Water Pump 34345-10010 for Mitsubishi S4K S6K S6KT Engine Caterpillar CAT E120B E312 E312B E312C E200B E320 E320B Excavator
Cylinder Head Gasket for Mitsubishi S6K S6KT Caterpillar CAT 3066 3066T Engine (2 PCS)
Engine Mounting Rubber Cushion Set 109-9369 109-9349 109-9350 109-9368 for Caterpillar CAT 320B 320C 324D 325D 329D & Engine Mounting Rubber Cushion Feet Bumper for Caterpillar CAT Excavator E320C & Engine Rubber Cushion Feet for Caterpillar Excavator CAT E307 (8PCS)
Hydraulic Oil Cooler 124-1607 for Caterpillar Excavator Cat 325B 325B L Engine 3116 & Hydraulic Oil Cooler 281-3514 for Caterpillar Excavator Cat 345C 345C L 345C LC 345C UHD 345C HCR W345C
Idler 6I-6489 for Mitsubishi 4D32 4M40 Caterpillar CAT 3406 3054 Engine
Water Pump 129-1169 for Caterpillar CAT Excavator 322C 325C 325CL M325C Engine 3126B C7 3116
Starter Motor 185-9157 for Caterpillar CAT 307C 308C Mitsubishi Engine 4M40
Stop Solenoid 175-1246 for Caterpillar Ecavator E200B
Throttle Motor 247-5207 247-5208 for Caterpillar CAT Engine 3064 3054T Excavator 312C 312CL
Drive Panel 24V for Caterpillar Excavator CAT 320B 320C E320B E320C
Traveling 2nd Central Gear & Swing 2nd Three Star Planetary Gear & Traveling 1st Three Star Planetary Gear & Small Motor for Caterpillar Excavator CAT E320C & E320B & E312 Sumitomo Excavator SH265
Universal Cardan Joint for Caterpillar Excavator CAT
Track Adjuster Spring 7Y-1606 for Caterpillar CAT Excavator 320 315B 317B L 317B LN 318B L 318B LN 320 LN 320 S 320L 320N
Throttle Cable for Caterpillar Excavator E320C
Upper & Lower Water Hose 085-8401 085-8400 for Caterpillar CAT Engine 3064 Excavator 311 312 E110B E120B E312 E312B & Lower Water Hose 230-2870 for Caterpillar CAT Excavator 325D & Lower Water Hose 124-1702 for Caterpillar CAT Excavator 330
Filters and Belts for Optimal Operation
Maintain clean systems and efficient power transfer with our filters and belts:
Air Filter 131-8821 & 131-8822 for Caterpillar CAT 320B 320C 320D 320E 321B 322B 323D 325B
Fuel Filter 094-7073 ME006066 for Mitsubishi Engine 4D31 4D32 Caterpillar CAT Excavator E70 E70B 307
Oil Filter 094-7208 for Mitsubishi Engine 4D31-T 4D32 Caterpillar CAT Excavator 307 E110 E70B
Fan Belt 8PK1510 for CAT Caterpillar Excavator E322 & Fan Belt 12pk1880 for CAT Caterpillar Excavator E320C & E320D
Air Conditioning Belt 6450 for CAT Caterpillar Excavator E312
Other Essential Components
We also supply a variety of other crucial parts:
Gear Pump 274-5947 for Caterpillar CAT Excavator 305.5 306 306D 308
Time Relay 163-6703 for Caterpillar CAT 311C 312C 314C 315C 318C 319C 320C 320D 321C 322C 325C 330C 345C 365C 385C
Pressure Switch 167-3466 for Caterpillar Excavator E320
Cab Door Lock for CAT Caterpillar Excavator E320
Track Roller Bottom Roller 7I-2719 1R-6316 086-0254 099-6467 for Caterpillar CAT Excavator E70B
Pilot Gear Pump for Caterpillar Excavator CAT E70
Water Tank Radiator Core ASS'Y for Caterpillar CAT 306D
Coolant Temperature Water Sensor 264-4297 for Caterpillar CAT Engine C7 3126B C9.3 3406C 3512B
Swing Motor Seal Kit for Caterpillar CAT Excavator E300
Speed Sensor 238-0120 for Caterpillar CAT Engine C6.4 Excavator 312D 320D 320E 324E 450E
Choose Growshine International for reliable, durable, and high-performance aftermarket parts that keep your Caterpillar and Mitsubishi excavators running efficiently. Contact us today to learn more about our products and how we can support your machinery maintenance needs.
Engineering Machinery Parts Glossary
1. Hydraulic Cylinder Seal Kit / 液压缸密封套件
Installation Location: Inside hydraulic cylinders, such as boom, arm, and bucket cylinders.
Function: Prevents hydraulic fluid leakage and maintains cylinder pressure.
Example: Caterpillar 320C Bucket Cylinder Seal Kit, Part No: 259-0626.
2. Travel Motor Seal Kit / 行走马达密封套件
Installation Location: Within the travel motor assembly, which drives the excavator tracks.
Function: Seals hydraulic components within the travel motor, preventing leaks and ensuring smooth track movement.
Example: Caterpillar CAT300 Travel Motor Seal Kit.
3. Swivel Joint Seal Kit / 回转接头密封套件
Installation Location: At the swivel joint (rotary joint) connecting the excavator's upper structure to the undercarriage.
Function: Seals hydraulic lines passing through the swivel joint, allowing 360-degree rotation without leaks.
Example: Caterpillar CAT324 Swivel Joint Seal Kit.
4. Oil Pump / 机油泵
Installation Location: Typically mounted on the engine block.
Function: Circulates engine oil to lubricate engine components, reducing friction and wear.
Example: Caterpillar 3304 Engine Oil Pump, Part No: 4W-2448.
5. Water Pump / 水泵
Installation Location: Usually at the front of the engine, driven by a belt.
Function: Circulates coolant through the engine and radiator to regulate engine temperature.
Example: Caterpillar 322C Water Pump, Part No: 129-1169.
6. Alternator / 交流发电机
Installation Location: Mounted on the engine, driven by a belt.
Function: Generates electrical power to charge the battery and power electrical systems while the engine is running.
Example: Caterpillar 3064 Engine Alternator, Part No: 212-8622.
7. Turbocharger / 涡轮增压器
Installation Location: Attached to the engine's exhaust manifold.
Function: Increases engine power and efficiency by forcing more air into the combustion chamber.
Example: Caterpillar 320C Turbocharger, Part No: 5I-8018.
8. Fuel Filter / 燃油滤清器
Installation Location: In the fuel line, typically near the engine.
Function: Removes contaminants from fuel to protect the engine's fuel system and ensure clean combustion.
Example: Mitsubishi 4D31 Engine Fuel Filter, Part No: 094-7073.
9. Air Filter / 空气滤清器
Installation Location: In the engine's air intake system.
Function: Filters out dust, dirt, and other particles from the intake air, preventing engine damage and ensuring clean air for combustion.
Example: Caterpillar 320C Air Filter, Part No: 131-8821.
10. Track Roller / 履带滚轮
Installation Location: Along the undercarriage frame, supporting the excavator's tracks.
Function: Provides smooth and stable movement of the tracks over the ground.
Example: Caterpillar E70B Track Roller, Part No: 7I-2719.
Common Questions about Excavator Parts
Q1: How often should I replace excavator seal kits?
Seal kits should be inspected regularly, ideally every 500 hours of operation or as part of a preventative maintenance schedule. Replacement frequency depends on operating conditions and seal quality, but proactively replacing them every 1000-2000 hours can prevent costly hydraulic failures.
Q2: What are the signs of a failing excavator alternator?
Signs of a failing alternator include dimming headlights, slow engine cranking, a warning light on the dashboard (battery or ALT), and electrical system malfunctions. Battery drain and frequent jump starts can also indicate alternator issues.
Q3: Why is regular replacement of filters crucial for excavators?
Regular filter replacement (air, fuel, oil, hydraulic) is vital to prevent contaminants from damaging engine and hydraulic components. Clean filters ensure optimal performance, fuel efficiency, and extend the lifespan of critical systems, reducing downtime and repair costs.
Growshine International: Your Trusted Partner
At Growshine International, we specialize in the import and export trade of high-quality engineering machinery parts, heavy truck parts, agricultural machinery parts, and auto parts. We are committed to providing our customers with reliable and durable aftermarket parts for Caterpillar, Mitsubishi, and other leading brands. Our extensive product range and dedication to customer satisfaction make us the ideal partner for your machinery maintenance needs.
Common Excavator Fault and Solution
Fault: Excavator Hydraulic System Overheating
Description: Overheating in the hydraulic system can lead to reduced efficiency, component damage, and potential system failure. Symptoms include sluggish operation, unusual noises from the hydraulic pump, and excessively hot hydraulic oil.
Possible Causes:
Low hydraulic fluid level
Clogged hydraulic oil cooler
Faulty hydraulic pump
Internal leaks in hydraulic cylinders or motors
Contaminated hydraulic fluid
Solution:
Check Hydraulic Fluid Level: Ensure the fluid level is within the recommended range and top up if necessary.
Inspect and Clean Oil Cooler: Clean any debris or blockage from the hydraulic oil cooler to ensure proper heat dissipation.
Examine Hydraulic Pump: Listen for unusual noises and check for leaks. A faulty pump may require repair or replacement.
Check for Internal Leaks: Inspect hydraulic cylinders and motors for internal leaks, which can cause inefficiency and heat buildup. Seal kits may need replacement.
Fluid Analysis and Change: Analyze the hydraulic fluid for contamination. If contaminated or degraded, flush the system and replace with new, high-quality hydraulic fluid and filters.
