Bobcat primarily manufactures skid-steer loaders, excavators, track loaders, wheel loaders, and telescopic forklifts, among other equipment.

Purchasing Bobcat excavator parts isn’t as simple as searching for products based on the equipment model. Different model years, serial numbers, and configurations may correspond to different part numbers.

This article will cover the main models of Bobcat excavator parts, common replacement parts, symptoms of malfunctions, methods for looking up part numbers, and how to select the correct aftermarket replacement parts.

Bobcat Series

E Series

Common Models：E10、E17、E20、E26、E32、E35、E42、E45、E50、E55、E60、E80、E85、E88.

Large Excavator

Common Models：E145、E165、E220、E245.

S Series

Common Models：S450、S510、S530、S550、S570、S590、S650、S770、S850.

T Series

Common Models：T450、T550、T590、T595、T650、T66、T740、T750、T770、T870。

MT Series

Common Models：MT50、MT52、MT55、MT85、MT100、MT120.

L Series

Common Models：L65、L75、L85、L95 and L205、L235、L255、L285.

In addition, Bobcat offers backhoe loaders, telescopic forklifts, compact tractors, and multi-purpose work equipment.

Reference Manual ：Kubota 2026 Construction Product Catalog

What are the main Bobcat Excavator parts?

Bobcat excavator parts can be categorized by equipment system.

Hydraulic Pump

The hydraulic pump is the core component of an excavator’s hydraulic system, responsible for converting the mechanical energy supplied by the engine into hydraulic energy.

It provides hydraulic power to the boom, stick, bucket, swing, and travel systems.

Common Problems:

• Slow hydraulic operation.
• Insufficient pressure in the hydraulic system.
• Abnormal noise from the hydraulic pump.
• Abnormal rise in hydraulic fluid temperature.
• External leakage from the hydraulic pump.

Travel Motor

The travel motor converts hydraulic energy into rotational mechanical power to drive the excavator’s tracks.

Bobcat track-type excavators typically feature independent left and right travel drive systems.

Common Problems:

• The left and right tracks are moving at different speeds.
• One side of the track is not moving properly.
• Abnormal noise occurs during travel.
• Oil is leaking from the travel motor.
• The machine lacks power while moving.

When these problems occur, inspect the travel motor, control circuit, final drive, and track mechanism.

Final Drive

The final drive typically consists of a travel motor and a reduction gear mechanism, or works in conjunction with them.

Its primary function is to reduce rotational speed and increase output torque, thereby driving the tracks.

Common Bobcat excavator parts include:

1. Planetary Gears
2. Sun Gear
3. Ring Gear
4. Bearings
5. Oil Seals

Common Problems:

• Gear wear
• Bearing failure
• Gearbox leak
• Abnormal noise

Swing Motor

The swing motor is responsible for driving the rotation of the excavator’s upper structure.

Common Problems:

• Slow rotation
• Lack of power during rotation
• Abnormal noise
• Internal leakage

Hydraulic Cylinder

The following hydraulic cylinders are included in Bobcat excavator parts:

• Boom Cylinder
• Arm Cylinder
• Bucket Cylinder

Common Problems:

• Scratches on the piston rod
• Worn seals
• External oil leaks
• Internal leaks

If a hydraulic cylinder is leaking, you can choose to replace the seals, install a repair kit, or replace the entire cylinder assembly, depending on the extent of the damage.

Seal Kit

Hydraulic seals are primarily used to prevent hydraulic fluid leaks and maintain the sealing performance inside hydraulic cylinders and other hydraulic components.

Seal kits for Bobcat excavator parts generally include the following components:

1. Piston Seal
2. Rod Seal
3. Dust Seal
4. O-Ring
5. Backup Ring
6. Wear Ring

Engine Parts

Common engine parts include:

1. Fuel Injector
2. Fuel Injection Pump
3. Water Pump
4. Starter Motor
5. Alternator
6. Oil Filter
7. Fuel Filter
8. Air Filter

Common Problems with Bobcat Excavators and Corresponding Parts.

A single symptom may be caused by several different issues; therefore, the necessary tests should be performed before replacing any parts.

Symptoms	Possible Affected Components or Systems
Slow Hydraulic Operation	Hydraulic pump, control valve, hydraulic oil supply system
Abnormal Travel on One Side	Travel motor, hydraulic control circuit, final drive
Weak Boom Lifting Performance	Hydraulic cylinder, control valve, hydraulic supply system
Hydraulic Oil Overheating	Cooling system, hydraulic pump, internal hydraulic leakage
Hydraulic Cylinder Leakage	Piston rod seals, cylinder seals
Abnormal Hydraulic Noise	Hydraulic pump, suction system, mechanical coupling
Slow or Irregular Swing	Swing motor, swing gearbox, hydraulic control system
Track Drive Noise	Travel motor, final drive, bearings, gears

How to Look Up Part Numbers for Bobcat Excavator Parts？

Accurately identifying the original manufacturer’s part number is a crucial step in purchasing parts for a Bobcat excavator.

Step 1: Confirm the device’s full model number.

Do not provide only generic names such as “Bobcat Mini Excavator.”

Step 2: Check the machine’s serial number

The equipment serial number is an important piece of information for identifying the specific production configuration.

Different production batches of Bobcat machines may use different engines, hydraulic pumps, or other components.

Step 3:Use the Official Parts Catalog

You can use the official parts catalog to find Bobcat excavator parts lists and parts diagrams.

Search Website: Bobcat Parts

Step 4：Verify the original manufacturer’s part number

If the old parts have part numbers, take clear photos of them and record the information in full.

For hydraulic pumps, travel motors, final drives, and engine parts, you should also photograph the nameplates, as this will help you identify the corresponding products more accurately.

Step 5:Verify Replacement Compatibility

Once you have found the original part number, please verify the technical specifications of the replacement part.

This includes mounting dimensions, port locations, connection methods, pressure requirements, and the applicable serial number range.

Original Excavator Parts vs. Aftermarket Excavator Parts

Comparison Factors	Genuine Excavator Parts	Aftermarket Excavator Parts
1. Price	Usually more expensive.	Generally more cost-effective, with more competitive pricing.
2. Quality	Manufactured according to the original manufacturer’s specifications and quality standards.	Quality varies depending on the manufacturer and production standards.
3. Materials	Materials are selected according to original design requirements.	Material quality may vary between suppliers.
4. Dimensional Accuracy	Manufactured according to original design specifications.	Depends on machining precision and quality control.
5. Compatibility	Generally designed to match specific original equipment models.	Compatibility should be verified by part number, dimensions, and specifications.
6. Service Life	Depends on operating conditions and maintenance.	Depends on product quality, operating conditions, and maintenance.
7. Warranty	Covered by the original manufacturer’s warranty policy.	Warranty is provided according to the supplier’s or manufacturer’s policy.
8. Delivery Time	Some genuine parts may require longer ordering and delivery times.	Some aftermarket parts may be more readily available from suppliers.
9. Brand	Supplied under the original equipment manufacturer’s brand.	Produced by independent manufacturers or aftermarket brands.
10. After-Sales Service	Support is generally provided through authorized dealers or the original manufacturer.	Support is provided by the aftermarket parts supplier or manufacturer.

Both genuine and aftermarket excavator parts have their own advantages. Genuine parts offer original manufacturer specifications and brand assurance, while aftermarket parts provide more competitive pricing and flexible purchasing options. The best choice depends on your budget, equipment requirements, operating conditions, and the reliability of the supplier.

Checklist Before Purchasing Bobcat Excavator Parts

When making a purchase, you can check the following information before placing your order:

1. When making a purchase, you can check the following information before placing your order:
2. Confirm the Bobcat excavator model
3. Provide the equipment serial number
4. Verify the genuine part number
5. Confirm the part dimensions and technical specifications
6. Verify the part’s compatibility with the equipment
7. Research product quality and the manufacturer
8. Confirm the price, inventory, and delivery time
9. Review the warranty and after-sales service policies

FAQ

How do I find the correct Bobcat excavator part number?

You can search the official “Bobcat Parts Catalog” using your Bobcat machine’s model and serial number. Additionally, you can identify the correct replacement part by comparing the original part number with the machine’s schematic.

Are parts for the Bobcat E35 model compatible with the E42 model?

Not necessarily. Although some components may be similar in design, compatibility depends on the specific part number, machine configuration, and serial number range.

What is the difference between a Bobcat travel motor and a final drive?

The travel motor converts hydraulic power into rotational motion, while the final drive (reduction gear) drives the tracks by reducing speed and increasing torque. Some replacement products combine these two components into a single complete assembly.

Where can I purchase Bobcat replacement parts?

At Farinparts, we help customers identify and purchase the excavator replacement parts they need based on the excavator model, serial number, and original equipment part number.

Conclusion

Bobcat excavators utilize a wide variety of hydraulic, mechanical, and engine components. Selecting the right replacement parts cannot be based solely on the equipment model.

If you need to purchase Bobcat excavator parts, please provide the machine model, serial number, original part number, or a photo of the product before placing your order to confirm compatibility.

FarinParts provides procurement support for excavator hydraulic components and replacement parts, helping equipment owners and repair professionals identify suitable replacement options.