1S3311 CAT Ring-Retaining
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Before shipping your order, we use CAT SIS to ensure
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Description for 1S3311 Ring Retainer
â–¶Specification for 1S3311 Ring Retainer
â–¶Exact Fit Guarantee for 1S3311 Ring Retainer
â–¶| Dimensions | 4.33x4.33x0.12 |
|---|
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NE Enterprises (India)100%They went above and beyond to make sure my order was right. Thanks again
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Sharif (United Kingdom)100%Very nice job
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Ian (Australia)100%Quick and efficient.
Great products and a great team to deal with. We had a small issue with a missing part and the Customer Services Team dealt with it quickly and efficiently and in a way which left me, the customer, feeling entirely satisfied. Would highly recommend. -
Gnovey (Panama)100%Good Customer Service. Fast Shipping. A+++
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Leon Bachu (Uganda)100%Propel parts is a very reliable parts source for heavy equipment
Quick response,good quality parts,favourable prices and always deliver on time
Frequently Asked Questions
What is the 1S3311 ring used for?
The 1S3311 ring seals, retains, or guides within its assembly, holding pressure or position as designed. Its condition directly affects how well the assembly performs.
How do I install the 1S3311 ring?
To install the 1S3311 properly, prepare the area first and confirm the result afterward. Use these steps:
- Shut down and depressurize or disassemble the area safely
- Remove the old ring and clean its groove or seat
- Inspect the groove and mating surfaces for wear
- Fit the 1S3311 squarely without distorting or over-stretching it
- Reassemble and verify correct seating and operation
Which Caterpillar machines is the 1S3311 compatible with?
The 1S3311 ring is used across many Caterpillar applications, but the correct fit depends on your exact model and assembly. Always cross-check fitment using your service manual or part reference guide before ordering. If you are unsure don’t hesitate to reach out to Propel Parts for help verifying fitment.
Does the 1S3311 ring meet performance standards?
Yes. The 1S3311 is built to meet OEM specifications for fit, strength, and service life. When replacing, choose genuine or high-quality aftermarket parts that meet or exceed OEM specifications to keep the assembly protected.
How often should the 1S3311 be replaced?
Service life for the 1S3311 depends on operating conditions and load. Replace it on inspection findings or at the interval your manual specifies rather than waiting for a failure. When servicing this area, the 5I8420 Pin is commonly replaced at the same time.
What are the signs of a worn or failing 1S3311 ring?
A worn 1S3311 usually gives early warning through the assembly it supports. Watch for these signs:
- Leaks or loss of pressure
- A worn, broken, or distorted ring on removal
- Reduced performance in the assembly
- Blow-by or contamination past the ring
Why is the 1S3311 ring important, and what related part is commonly replaced with it?
A sound 1S3311 is inexpensive insurance against larger repairs. Servicing it on time with parts that meet OEM specifications keeps the whole assembly working as intended. During an overhaul, the 2357679 Seal Lip Type is frequently replaced alongside this part.

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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