327-4420 Final Drive Spindle is a hardened-steel drivetrain component designed for Caterpillar D10-series track-type tractors. With 145 external spline teeth, it connects the wheel and hub to the axle and supports rotation and torque transfer within the final drive assembly. Caterpillar officially lists the part for D10N, D10R, D10T, D10 and D10T2, making it suitable for demanding mining, earthmoving and heavy construction applications.
Your supplied D10N / D10R / D10T applications are therefore supported by Caterpillar’s official compatibility information. Machine serial number and configuration should still be checked before ordering.
Applications
Mining
Quarry
Construction
Heavy Earthmoving
Large Infrastructure Projects
The 327-4420 is especially suited to heavy-duty track-type tractors working in mining, earthmoving, infrastructure construction and other demanding environments.
Why Choose YLCM?
20+ Years Experience – Extensive experience in construction and mining machinery parts.
Large Warehouse – Wide inventory covering drivetrain, undercarriage, hydraulic and engine components.
Fast Delivery – Efficient order processing for urgent maintenance requirements.
Genuine & OEM Parts – Genuine, OEM and quality replacement solutions available.
Export to 60+ Countries – Supporting customers across global markets.
Professional Technical Support – Assistance with part identification and compatibility verification.
Packaging
YLCM provides professional export packaging to protect the final drive spindle during transportation and storage.
Standard export carton
Heavy-duty wooden case or crate when required
Shockproof internal protection
Moisture-proof protection
Rust-proof protection
Secure fixation to prevent movement during transportation
Packaging can be adjusted according to product dimensions, quantity and destination.
Shipping
YLCM supports flexible international transportation solutions:
Sea Freight
Railway Transportation
Land Transportation
Multimodal Logistics Solutions
The appropriate transportation method can be arranged according to destination, order quantity, delivery schedule and cargo requirements.
FAQ
Q1: What is 327-4420? A: 327-4420 is a Caterpillar 145 Teeth Final Drive Spindle used in the final drive system of heavy-duty track-type tractors.
Q2: What does the 327-4420 spindle do? A: It connects the wheel and hub to the axle and supports rotation and torque transfer within the final drive assembly.
Q3: How many spline teeth does 327-4420 have? A: Caterpillar specifies 145 external spline teeth.
Q4: What material is 327-4420 made from? A: Caterpillar identifies the material as Boron Steel and describes the spindle as hardened steel for heavy-duty use.
Q5: Is 327-4420 suitable for CAT D10N? A: Yes. CAT officially lists D10N among the compatible track-type tractor models.
Q6: Is 327-4420 suitable for CAT D10R and D10T? A: Yes. Both D10R and D10T are included in Caterpillar’s official compatibility list.
Q7: Does Caterpillar publish dimensions for 327-4420? A: The current official Parts Store listing does not provide detailed dimensional specifications for this part.
Q8: Can YLCM verify compatibility before ordering? A: Yes. Send the part number, machine model, serial number and required quantity, and YLCM can assist with compatibility verification.
Request a Quote
Looking for 327-4420 Final Drive Spindle for CAT D10N, D10R or D10T? Contact YLCM for the latest quotation and availability.
Please provide:
Part Number: 327-4420
Machine Model
Serial Number
Required Quantity
Destination
YLCM can assist with compatibility verification, quotation, lead time, export packaging and international logistics.