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New 3S9643 Seal, Oil Replacement suitable for Caterpillar 834S, 834U, 814F, 814F II, 824C, 824G, 824G II, 824H, 834B, 834G, 834H, 844, 844H, 854G, 854K, 621E, 621F, 623E, 623F, 627E, 627F, 627G, 637D, 637E, 637G, 651E, 657, 657B, 657E, 657G, 621B, 621E, 6
- New Seal, Oil Replacement suitable for Caterpillar Equipment
- Made to USA Specification
Buy with Confidence: All parts are covered by our warranty
4.7
(Site rating)Description for 3S9643 Integral Seal
â–¶Specification for 3S9643 Integral Seal
â–¶Exact Fit Guarantee for 3S9643 Integral Seal
â–¶| Models | 6, 621B, 621E, 621F, 623E, 623F, 627E, 627F, 627G, 637D, 637E, 637G, 651E, 657, 657B, 657E, 657G, 814F, 814F II, 824C, 824G, 824G II, 824H, 834B, 834G, 834H, 834S, 834U, 844, 844H, 854G, 854K & more |
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| Dimensions | 2.64x2.64x0.24 |
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Very thorough ! Confirmed order and great communications.
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Excellent service and quick response!
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Propel Parts provided quality parts for my Caterpillar needs at a very fair price. Shipping to my international location was very fast. took about a week for the parts to get here. Seller is also responsive with my inquiry.
Thanks again -
Amazing Help.
I don't know who I spoke with, but they were helpful. We will be buying those parts shortly. -
I’ve been ordering parts from propel for about 3 years & counting. I live in Hawaii where we have a hard time getting parts especially for decent prices with fast shipping. I've been 100% satisfied with the company and the customer service and will continue to use them. I recommend propel to everyone here in Hawaii and we are all happy to have you guys. Thank you!!!
Frequently Asked Questions
Which Caterpillar machines is this part compatible with?
A: This part is listed for compatibility with a large number of Caterpillar compactors, scrapers, and wheel-type machines including the 814F, 814F II, 824C, 824G, 824G II, 824H, 834B, 834G, 834H, 834S, 834U, 844, 844H, 854G, 854K, 621E, 621F, 623E, 623F, 627E, 627F, 627G, 631D, 631E, 631G, 633D, 637D, 637E, 637G, 651E, 657, 657B, 657E, and 657G. Always verify your specific serial number against the listed fitment before ordering.
How do I verify the correct fitment for my specific machine?
A: Use your equipment's model and serial number to confirm compatibility. If you are still unsure, reach out to Propel Parts ??? our team will be happy to help you verify if this part fits your equipment.
Is this a high-quality aftermarket part?
A: Yes. This is a premium high-quality aftermarket component manufactured to meet or exceed OEM specifications for fit, performance, and durability across the wide range of listed Caterpillar models.
Are all machines in the compatibility list using the same part?
A: In many cases, Caterpillar uses the same seal or component across multiple machine families. However, always cross-reference your serial number and refer to your service documentation to confirm the correct part before installation.
For the complete range of replacement seals and gaskets for heavy equipment, visit our dedicated category.
What are the signs that this component needs replacing?
A: Signs vary by component type but may include fluid leaks, abnormal machine operation, unusual noise, loss of pressure, or visible damage during inspection. Refer to your Caterpillar service manual for the specific failure indicators for this part.
Can I install this part myself?
A: Installation difficulty varies based on the specific component and its location in the machine. For seals and gaskets, proper surface preparation and torque procedures are critical. Refer to your Caterpillar service manual for step-by-step instructions.
What warranty is included?
A: All Propel Parts products come with a 12-month warranty against manufacturing and material defects. Same-day shipping is available for weekday orders placed by 3pm ET.
This 3S9643 Integral Seal is compatible with the following models:
6, 621B, 621E, 621F, 623E, 623F, 627E, 627F, 627G, 637D, 637E, 637G, 651E, 657, 657B, 657E, 657G, 814F, 814F II, 824C, 824G, 824G II, 824H, 834B, 834G, 834H, 834S, 834U, 844, 844H, 854G, 854K & more...
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.
1 YEAR UNLIMITED WARRANTY
ORDER BY 3PM EST. EXCL. WEEKEND
NO CORE OR EXCHANGE CHARGES
EASY RETURNS & FAST REFUNDS
