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New 4K1388 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.
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We'll overnight correct part at no cost to you.
Description for 4K1388 Seal O Ring
▶Specification for 4K1388 Seal O Ring
▶Exact Fit Guarantee for 4K1388 Seal O Ring
▶| Dimensions | 1.30x1.30x0.12 |
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I was able to source my parts with propelparts in one click pay and have the shipment worked on under 60 minutes, with various options of couriers i received my shipments in less than 10days
The parts a durable and efficient -
They went above and beyond to make sure my order was right. Thanks again
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100% excelente
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Buen servicio y atención
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Will definitely use regularly!
Shipped the exact product we were looking for. Prompt Customer Service. Seamless cross-border shipping
Frequently Asked Questions
What is the Caterpillar 4K1388 seal O-ring used for?
The 4K1388 seal O-ring is designed to create a secure seal between Caterpillar equipment components, helping prevent fluid leakage and protect systems from contamination during operation.
What are the benefits of using a high-quality O-ring seal?
- Helps maintain proper pressure sealing
- Reduces the risk of leaks and contamination
- Supports reliable hydraulic and engine system performance
What are common signs that an O-ring should be replaced?
Common signs include fluid leakage, cracking, flattening, swelling, hardening, or reduced sealing effectiveness during equipment operation.
Why are O-rings important in heavy equipment systems?
O-rings help maintain system integrity, prevent pressure loss, and protect internal components from contamination and excessive wear.
Is the 4K1388 seal O-ring compatible with multiple Caterpillar machines?
Yes, this O-ring may fit various Caterpillar equipment applications depending on machine configuration. If you are unsure don’t hesitate to reach out to Propel Parts for help verifying fitment.
Are aftermarket replacement O-rings dependable?
Yes. Premium aftermarket O-rings that meet or exceed OEM specifications provide reliable sealing performance and durability in demanding operating environments.
Are similar sealing components available for related applications?
Yes, products such as the Caterpillar 1079570 seal O-ring are commonly used in related Caterpillar systems requiring dependable leak prevention.
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
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EASY RETURNS & FAST REFUNDS
