New 4D2287 (9K2258) Valve A. Replacement suitable for Caterpillar Equipment
- New Valve A. Replacement suitable for Caterpillar Equipment
- Made to USA Specification
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Description for 4D2287 Brake Valve
▶Specification for 4D2287 Brake Valve
▶Exact Fit Guarantee for 4D2287 Brake Valve
▶| Models | 621, 621B, 621E, 623, 623B, 623E, 627, 627B, 631C, 631D, 631E, 633C, 633D, 637, 637D, 637E, 641, 641B, 650B, 651, 657, 657B, 666, 666B, 768B, 769, 814, 814B, 815, 816, 816B, 824C, 825C, 826C, 916, 920. |
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| Dimensions | 4.13x4.13x4.33 |
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At the beginning, I experienced significant delays and communication issues regarding my order, which honestly caused serious concern because the parts were urgently needed for an important project.
However, after continuous follow-up, the Propel Parts team handled the matter professionally, provided shipment tracking, and the parts finally arrived successfully.
I especially appreciate their willingness to communicate, acknowledge the issue, and continue working toward resolving the situation.
In international business, delays can sometimes happen, but what matters is the final commitment to resolving the issue properly.
Thank you to Daniel and the team, and hopefully future transactions will be smoother for both sides. -
Steven & Propel Parts were a huge help! We were able to place a large order and get it shipped out same day to avoid a line down situation for a customer due to a lost component. The order was even submitted after the 3pm cutoff for same day shipments and we got it the next morning!
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customer service and parts availability is fantastic
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Great service!
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Propel parts is a good Cat vendor that provides a top notch service to customers from ordering to delivery. Their after sales service is really impressive.
Frequently Asked Questions
What is the Caterpillar 4D2287 / 2Y7478 valve used for?
The Caterpillar 4D2287 / 2Y7478 valve is a high-quality aftermarket replacement designed to help regulate fluid or system flow within heavy equipment applications. It is manufactured to meet or exceed OEM specifications for dependable operation and durability.
What are the benefits of the 4D2287 / 2Y7478 valve?
- Helps regulate system flow and performance
- Supports dependable equipment operation
- Manufactured from durable materials for long service life
- Designed to meet or exceed OEM specifications
- Suitable for demanding heavy-duty applications
Is the 4D2287 / 2Y7478 valve compatible with multiple Caterpillar machines?
Yes, this valve may fit various Caterpillar equipment models depending on the system configuration and application requirements. If you are unsure don’t hesitate to reach out to Propel Parts for help verifying fitment.
Why is replacing worn valves important in heavy equipment?
Replacing worn valves helps maintain proper system control, improve efficiency, and reduce unnecessary wear on connected components.
Does the 4D2287 / 2Y7478 valve meet OEM standards?
Yes, this aftermarket replacement is designed to meet or exceed OEM specifications for fit, durability, and reliable system performance.
Can damaged valves affect equipment performance?
Yes. Damaged or malfunctioning valves may contribute to improper flow control, pressure issues, reduced efficiency, and increased maintenance requirements.
Are related Caterpillar flow-control components available from Propel Parts?
Yes. Propel Parts offers a wide range of replacement valves and system components for Caterpillar equipment. You can also check the Caterpillar Equipment Seal O-Ring 6D7146 for a related system sealing component.
This 4D2287 Brake Valve is compatible with the following models:
621, 621B, 621E, 623, 623B, 623E, 627, 627B, 631C, 631D, 631E, 633C, 633D, 637, 637D, 637E, 641, 641B, 650B, 651, 657, 657B, 666, 666B, 768B, 769, 814, 814B, 815, 816, 816B, 824C, 825C, 826C, 916, 920. & more...

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.

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.

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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