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6Y8764 Pump for CAT 120H, 120H ES, 120H NA & more
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Description for 6Y8764 Gear Pump
â–¶Specification for 6Y8764 Gear Pump
â–¶Exact Fit Guarantee for 6Y8764 Gear Pump
â–¶Reviews
The Double Order Catastrophe
My co-worker placed an order and wasn't sure it went through online. I later placed the same order thinking the previous order didn't go through. To my surprise both orders went through, and I needed to cancel one of the orders. I called and spoke with someone who instructed me someone would contact me about the situation. I was contacted by Misty and she said she would do her best to cancel one of the orders but not sure if she could because they were next day orders. A small tome later I received an email saying she was able to cancel one of the orders. Thank you to Misty and the entire Propel Parts Team. Greatly appreciated!!
Great company with outstanding customer service. Always get answers to my questions and always get my order to me quickly!
Great company to deal with. Answered my questions with detail and shipped me the part in good time! I will be dealing with them more in the future!
BEST for Heavy Equipment Parts.
Awesome quality products! Better customer service! Steven is always a pleasure to work with and very prompt in assisting me - thank you!
Good Stuff.
We have had a couple shipping issues, but each time they made it right and we ended up getting what we need. Quality parts at half the price of OEM.
Product Questions
Frequently Asked Questions
What is the function of the 6Y8764 pump?
The 6Y8764 pump is a hydraulic gear pump that pressurizes and circulates hydraulic fluid throughout the machine’s hydraulic system. It converts mechanical power from the engine into hydraulic energy, which powers steering, blade controls, lift circuits, and other fluid‑driven functions.
How do I install the 6Y8764 pump?
Here’s a general guide for proper installation:
- Turn off the engine and safely relieve all hydraulic pressure before beginning work.
- Locate and disconnect the hydraulic lines and mounting bolts from the old pump.
- Carefully remove the old pump assembly, taking care not to spill fluid.
- Clean the mounting surface and inspect the ports and fittings for wear or damage.
- Install the new 6Y8764 pump, align it with the mounting holes, and torque fasteners to the specifications in your service manual.
- Reconnect hydraulic lines, refill the reservoir with the correct hydraulic fluid, and bleed air from the system as required.
- Start the engine and check for proper operation and leaks.
Which machines or systems use the 6Y8764 pump?
The 6Y8764 pump fits many Caterpillar motor graders and heavy machines, including models such as 120H, 12H, 140H, 135H, 160H, 143H, 120K, 12K, 160K, 163H, and others where this part number is specified. It also fits various engine platform applications including models powered by 3116, 3126, 3126B, 3176C, 3306, C‑9, and C7. Please reach out to Propel Parts for help verifying fitment.
Does the 6Y8764 pump meet performance expectations?
Yes, the 6Y8764 pump is manufactured to meet or exceed OEM specifications for durability and performance. Aftermarket units are quality‑checked to ensure they match the fit and function of the original Caterpillar part, helping to deliver reliable hydraulic pressure and consistent flow under typical operating conditions.
How often should a pump like the 6Y8764 be inspected or replaced?
Hydraulic pumps should be checked during routine hydraulic system maintenance or when your machine shows signs of declining performance. Inspect for unusual noise, fluid leaks, slow or inconsistent actuator motion, or overheating. Replace the pump if it fails to maintain proper pressure or if wear is evident.
What are common signs that the 6Y8764 pump needs replacement?
Typical indicators include:
- Reduced hydraulic performance (slow lift or steering response)
- Unusual whining or grinding noises from the pump area
- Visible hydraulic fluid leaks around the pump or fittings
- Overheating of the hydraulic system
Why is using a quality hydraulic pump important for equipment performance?
A quality hydraulic pump like the 6Y8764 ensures consistent fluid delivery and pressure to all hydraulic circuits. Using a pump that meets or exceeds OEM standards improves reliability, reduces the risk of system failures, and contributes to long‑term equipment uptime and performance, especially in heavy‑duty applications.
Compatible Models
This 6Y8764 Gear Pump is compatible with the following models:
120H, 120H ES, 120H NA, 120K, 120K 2, 12H, 12H ES, 12H NA, 12K, 135H, 135H NA, 140H, 140H ES, 140H NA, 140K, 140K 2, 143H, 160H, 160H ES, 160H NA, 160K, 163H, 163H NA, 3116, 3126, 3126B, 3176C, 3306, C-9, C7 & more...
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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.
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