Details
Description for 2H5549 Ring Retainer
â–¶Specification for 2H5549 Ring Retainer
â–¶Exact Fit Guarantee for 2H5549 Ring Retainer
â–¶Reviews
Customer Reviews
Above and Beyond
Staff took care of issue that was nit created by them. Package was lost by UPS. Propel sent me another part Next Day Air to correct it.
Awesome service prices and quality parts
Great company with outstanding customer service. Always get answers to my questions and always get my order to me quickly!
Excellent experience.
Mike has been very helpful. I am looking forward to keep doing business with them
Great service affordable parts
I would give 5 stars but my first time ordering from here and using aftermarket parts. The price is reasonable comparing to original Cat parts and the customer support is great and hoping to do more business with them
GREAT CUSTOMER SERVICED
WANTED TO THANK PROPEL PARTS FOR THEIR ATTENTION TO AN URGENT MATTER I HAD. THEY RESPONDED QUICKLY & RESOLVED IT. I ALSO WANTED TO MENYTION THAT OUR CUSTOMER'S ARE VERY HAPPY WITH THE PARTS EWE HAVE BEEN ORDERING FROM PROPEL. WE WILL DEFINITLEY CONTINUE TO DO BUSINESS.
:) great service
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!
Fast response and answers all my questions in a polite manner. Highly recommend.
Product Questions
Frequently Asked Questions
What is the 2H5549 ring and where is it used?
The 2H5549 is a precision ring component used in Caterpillar equipment ??? either as a piston ring, snap ring, lock ring, or retention ring depending on the assembly. For a complete range of heavy equipment engine parts, visit our engine parts category.
What are the signs that this ring needs replacement?
Replacement indicators include:
- Oil consumption increase (for piston rings)
- Excessive blowby or blue smoke from the exhaust
- Component shifting or coming loose from its seated position (for snap/lock rings)
- Visible wear, cracking, or deformation during inspection
Is the 2H5549 compatible with my Caterpillar engine?
Compatibility depends on the bore diameter, cross-section dimensions, and material of the ring. For related hardware, see our Caterpillar hardware components. Always verify the part number against your Caterpillar service manual.
What is the correct installation procedure for this ring?
For piston rings, use a ring expander tool to avoid snapping the ring during installation, and ensure the ring gaps are correctly staggered as specified in the service manual. For snap rings, use appropriate snap ring pliers and confirm the ring is fully seated in its groove.
Is this a premium aftermarket ring?
Yes ??? the 2H5549 is a high-quality aftermarket ring manufactured to meet or exceed OEM specifications for dimensions, ring gap, material tensile strength, and surface finish.
Should rings be replaced as a set?
For piston rings, yes ??? always replace the complete ring set for a given cylinder or engine when performing overhaul work. Mixing new and worn rings prevents the new ring from mating properly with the cylinder wall.
What warranty comes with this part?
Propel Parts covers the 2H5549 with a 12-month warranty from the invoice date. Same-day shipping is available for orders placed on weekdays before 3:00 PM ET. Worldwide delivery is available.
Shipping | Returns
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
Exact Fit Guarantee®
The right part — or we'll make it right.
Order Normally
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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.

