Worldwide Shipping
New 5K9090 Seal O Ring Replacement suitable for Caterpillar Equipment
- New Seal O Ring Replacement suitable for Caterpillar Equipment
- Made to USA Specification
Buy with Confidence: All parts are covered by our warranty
Exact Fit Guarantee
This part is guaranteed to fit your machine.
Wrong Part?
We'll overnight correct part at no cost to you.
Description for 5K9090 Seal O Ring
â–¶Specification for 5K9090 Seal O Ring
â–¶Exact Fit Guarantee for 5K9090 Seal O Ring
â–¶| Dimensions | 1.06x1.06x0.04 |
|---|
-
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. -
They are great !
-
100% recommend it is a good parts by par for five years and everything is good
-
Quality Caterpillar parts
Very fast delivery and respons from Propel Parts
This is my second time that I bought something from it, first time delivery time was in one week from US to Serbia -
Very helpful. Every question or request I had was answered quickly. I didn't have a parts book for my excavator but that was no problem for them. If you need parts for your Cat, give them a shot.
Frequently Asked Questions
What is the Caterpillar 5K9090 seal O-ring used for?
The 5K9090 seal O-ring is designed to create a secure seal between connected components in Caterpillar equipment systems. It helps prevent leaks, maintain pressure, and reduce contamination in hydraulic and engine applications.
What are common signs of a failing O-ring?
Common signs include fluid leaks, cracking, flattening, hardening, or reduced sealing performance. Replacing worn O-rings early can help avoid costly equipment downtime.
Is the 5K9090 O-ring compatible with multiple Caterpillar machines?
- Yes, this O-ring may fit a range of Caterpillar equipment applications depending on the machine model and system configuration.
- It is commonly used in sealing applications where leak prevention and pressure integrity are required.
- Check your manual or reach out to Propel Parts for help verifying fitment.
Why is proper sealing important in heavy equipment systems?
Proper sealing helps maintain system pressure, prevents fluid loss, protects internal components from contamination, and supports overall equipment reliability.
Can harsh operating conditions affect O-ring lifespan?
Yes. Exposure to heat, pressure fluctuations, chemicals, and demanding operating environments can gradually reduce sealing performance over time.
Are aftermarket replacement O-rings reliable?
Yes. High-quality aftermarket sealing components that meet or exceed OEM specifications can provide dependable durability and long-lasting sealing performance.
Should O-rings be replaced during preventive maintenance?
Yes, inspecting and replacing worn sealing components during scheduled maintenance can help reduce unexpected failures and improve equipment efficiency.
Are there related Caterpillar sealing components commonly used in similar applications?
Yes, parts such as the Caterpillar 6V5391 seal O-ring may also be used in related hydraulic and engine sealing applications.
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.
Exact Fit Guarantee®
The right part — or we'll make it right.
Order Normally
Know your part number? Simply place your order.
Not Sure?
Place your order, then send us your serial number before it ships.
We'll verify fit.
We Make It Right
Wrong part? We'll make it right.Fast. At our expense.
1 YEAR UNLIMITED WARRANTY
ORDER BY 3PM EST. EXCL. WEEKEND
NO CORE OR EXCHANGE CHARGES
EASY RETURNS & FAST REFUNDS
