New 6F6673 Seal Replacement suitable for Caterpillar Equipment

$0.11
In Stock • Ships Today • Order By 3pm ET
Excellent on Trustpilot
ppp-seal
Fit Guarantee

Exact Fit Guarantee

This part is guaranteed to fit your machine.

Wrong Part

Wrong Part?

We'll overnight correct part at no cost to you.

Secure Checkout Secure Checkout • Trusted Since 2012
Also accepts PayPal and Apple Pay
Details

Description for 6F6673 Seal O Ring

â–¶
This aftermarket Caterpillar 6F6673 Seal O Ring is built to meet U.S. OEM specifications for durability and performance. At Propel Parts, we perform strict quality checks to ensure it fits and functions like your original Caterpillar Seal O Ring.
Direct Replacement: Engineered for a precise fit in Caterpillar equipment.
OEM-Spec Quality: Manufactured to match the performance of your original part.
Tested Reliability: Strict quality checks are performed before shipping.

Specification for 6F6673 Seal O Ring

â–¶
Replacement Part Number(s): 6F-6673
Specifications: Aftermarket Part | US OEM Specs.
Shipping: Same Day (Weekdays) | Order by 3pm.
Warranty: Unlimited Mileage | 1 Year Warranty.
Core: No Core Required | No Core Charge.
Weight: 0.01 LBS | 0.00 KG
Dimensions: 1.57 x 1.57 x 0.16 (inches)
Condition: New

Exact Fit Guarantee for 6F6673 Seal O Ring

â–¶
Looking for a reliable replacement Caterpillar 6F6673 Seal O Ring ? Order with confidence through our Exact Fit Guarantee.
Verified Fit: Before we ship, we check your part against CAT SIS (Caterpillar Service Information System) to confirm it's the correct match for your machine.
Peace of Mind: If it isn't the right fit, we'll contact you with the correct Caterpillar part number before your order goes out.
Exclusive Guarantee: Enroll in our Exact Fit Guarantee at checkout to ensure you get the part you need the first time.
Reviews

Customer Reviews

★★★★★

Excellent service and very very good service

★★★★★

Great company with outstanding customer service. Always get answers to my questions and always get my order to me quickly!

★★★★★

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.

★★★★★

Original Review (Portuguese)
Muito bom atendimento
Ótima empresa

English Translation
Very good service.
Excellent company.

★★★★★

He was a great help with ordering and refunding the sales tax,

★★★★★

Prompt service, Friendly people and hassle free

★★★★★

Great prices prompt courteous customer service and fast shipping.

★★★★★

Excelente servicio rapido, responsable y confiable

★★★★★

They were great to deal with

★★★★★

A Delay Handled the Right Way
Honestly, if I were in Miami like my shipment was, I wouldn?t have been in a hurry to ship out either. I was frustrated at first ? delays cost me time on the job ? but Propel Parts stepped up.

Deb, Daniel and the team owned the mistake, kept the communication clear, and graciously refunded my shipping costs without making it a hassle. That kind of accountability is rare these days, and I genuinely appreciated how they handled it.

Things don?t always go perfectly, but these folks proved they?re more interested in doing right by their customers than just pushing parts out the door. Solid company, solid people.

? Jimmy Spong
Hartco Mobile Welding

P.S. Incredible quality on the pin as well. I had to do some custom modifying, and let?s just say the case hardening was ? well ? hard. Great Stuff! Thank you.

Product Questions

Frequently Asked Questions

What is the 6F6673 seal used for?

The 6F6673 is a sealing component that blocks fluid leakage and keeps dirt and debris out of the assembly. Reliable sealing is key to maintaining pressure and protecting internal parts.

How do I install the 6F6673 seal?

Fitting the 6F6673 correctly comes down to clean surfaces and following the manual sequence. Work through these steps:

  1. Shut down and depressurize the system, then let it cool if needed
  2. Remove the old seal and clean the bore and shaft surfaces
  3. Inspect the sealing surface for scoring, pitting, or wear
  4. Lightly lubricate the 6F6673 as directed and fit it square to the bore
  5. Seat it to the correct depth without distorting the lip, then check for leaks

Which Caterpillar machines is the 6F6673 compatible with?

Compatibility for the 6F6673 seal varies by machine and configuration, so cross-check it for your Caterpillar equipment before ordering. If you are unsure don't hesitate to reach out to Propel Parts for help verifying fitment.

Does the 6F6673 seal meet performance standards?

Yes. The 6F6673 is engineered to meet OEM specifications for material, dimensions, and durability. When replacing, choose genuine or high-quality aftermarket parts that meet or exceed OEM specifications so the part performs the way it was designed to.

How often should the 6F6673 be replaced?

The 6F6673 is typically renewed during scheduled service or a related repair. In demanding, high-hour operation, inspect it more often to stay ahead of wear.

What are the signs of a worn or failing 6F6673 seal?

When the 6F6673 reaches the end of its service life, the symptoms tend to show up first as performance or wear issues. Look for:

  • Visible fluid leaks or seepage at the joint
  • Loss of system pressure
  • Contamination found inside the assembly
  • A hardened, cracked, or torn sealing surface

Why is the 6F6673 important, and what related parts work with it?

Replacing the 6F6673 when needed keeps the system within its designed clearances and loads, which extends the life of the surrounding parts and supports dependable performance. Related hardware on our site includes 0336033 Seal O-Ring and CTP3306001C Rebuild Overhaul Gasket Kit D6d D6e D6h 12g 12h 14g 14h 140g 528 2.

Questions About this Part?
Have a question about fit, compatibility, shipping, warranty, or returns?
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.

1

Order Normally

Know your part number?
Simply place your order.

2

Not Sure?

Place your order, then send us your serial number before it ships.

We'll verify fit.
Truck Icon
3

We Make It Right

Wrong part? We'll make it right.

Fast. At our expense.