Worldwide Shipping 
5M6651 Hub for CAT Equipment
- New Hub Replacement suitable for Caterpillar Equipment
- Made to USA Specification
Buy with Confidence: All parts are covered by our warranty
4.7
(Site rating)Description for 5M6651 Hub
▶Specification for 5M6651 Hub
▶Exact Fit Guarantee for 5M6651 Hub
▶| Dimensions | 21.26x21.26x20.28 |
|---|
-
Excellent service and very very good service
-
I would give 5 stars but my first time ordering from here and using aftermarket parts. The price is reasonable comparing to original Cat parts and the customer support is great and hoping to do more business with them
-
I own old cat bulldozers D8k,D8H,D8N that required frequent repairs and servicing. it was erratic and practically cumbersome to keep them running without constant supply of reliable
and affordable spares in Uganda a third world country however,since I started dealing with propel parts US,my bulldozers have earned reliability and efficiency in providing high quality services to clients and making me a great dependable construction company in earth moving.
My shipments are always handled expeditiously and delivered in record time to Uganda this is awesome from Propelparts.
My business is booming by the clock for finding the best partner in Propelparts. -
Propel Parts provided quality parts for my Caterpillar needs at a very fair price. Shipping to my international location was very fast. took about a week for the parts to get here. Seller is also responsive with my inquiry.
Thanks again -
customer service and parts availability is fantastic
Frequently Asked Questions
What is the function of the 5M6651 hub?
The 5M6651 hub (also cataloged as 0R1651) is a drive hub assembly that supports rotation and power transmission between the final drive and wheel/undercarriage components on heavy equipment. It helps deliver torque from the machine’s drivetrain to the wheels or tracks, enabling movement and load‑bearing support.
How do I install the 5M6651 hub?
Here’s a general guide for proper installation:
- Park the machine on level ground, shut off the engine, and ensure it is safely supported.
- Remove any wheels, tracks, or related components that block access to the existing hub.
- Unbolt and remove the worn or damaged hub from its mounting location.
- Clean the mounting surface and inspect for wear or damage.
- Position the new 5M6651 hub and secure it with the specified fasteners, torquing them to values in your service manual.
- Reinstall wheels, tracks, and any removed components.
- Test the machine at low speed to confirm smooth operation and secure fit.
Which machines or systems use the 5M6651 hub?
The 5M6651 hub is used on a variety of Caterpillar track‑type tractors and dozers where this part number is specified in the drivetrain or final drive assembly. It fits models such as D6C, D6D, D6E, and similar Caterpillar machines in final drive or undercarriage applications. Check your manual or reach out to Propel Parts for help verifying fitment.
Does the 5M6651 hub meet performance expectations?
Yes, the 5M6651 hub is engineered to meet or exceed OEM specifications for strength, durability, and dimensional accuracy. Aftermarket versions are manufactured to match the performance of the original equipment part, helping ensure reliable torque transfer, smooth operation, and long service life under heavy loads.
How often should a hub like the 5M6651 be inspected or replaced?
Hubs should be inspected during routine undercarriage or drivetrain maintenance, especially if you notice abnormal noises, vibration, or looseness. Examine bearings, seals, splines, and mounting surfaces for wear. Replace the hub if significant wear or damage is found to avoid secondary component failure.
What are common signs that the 5M6651 hub needs replacement?
Typical indicators include:
- Grinding or rumbling noises during movement
- Excessive play or looseness in the hub or drive shaft
- Vibration or uneven motion at low or high speeds
- Visible wear or damage to splines, bearings, or hub surfaces
Why is using a quality hub important for equipment performance?
A quality hub ensures efficient power transfer from the drivetrain to wheels or tracks, which supports consistent machine movement and traction. Parts that meet or exceed OEM expectations improve reliability, reduce premature wear on related components, and contribute to long‑term equipment durability.
Shipping
We know equipment downtime costs money, so fast and reliable shipping is a priority at Propel Parts. Orders placed on weekdays before 3:00 PM ET typically ship the same day, with expedited delivery options available for many locations when time is critical.
We ship across the U.S., Canada, and over 130 countries worldwide, helping customers keep machines running wherever they operate. Available shipping methods and delivery estimates are shown at checkout so you can select the option that best fits your timeline.
Tracking information is emailed within 24–48 hours after your order is processed, giving you full visibility from dispatch to delivery and peace of mind that your parts are on the way.
Easy Returns
Our refund policy is simple. We offer a 30-day, no-hassle return policy, and we make every effort to provide the best service and highest-quality parts possible. If you’re not fully satisfied with your purchase, you may return it within 30 days for a refund. Full details are available on our Returns Policy page.
Warranty
Buy with confidence. All parts from Propel Parts are covered against material or manufacturer defects for 12 months from the original invoice date. We stand behind every part we sell, so you can count on reliable performance and dependable support. Full details are available on our Warranty Policy page.
1 YEAR UNLIMITED WARRANTY
ORDER BY 3PM EST. EXCL. WEEKEND
NO CORE OR EXCHANGE CHARGES
EASY RETURNS & FAST REFUNDS
