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New 1P3704 Seal Replacement suitable for Caterpillar Equipment
- New Seal 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.
Wrong Part?
We'll overnight correct part at no cost to you.
Description for 1P3704 Seal Ring
▶Specification for 1P3704 Seal Ring
▶Exact Fit Guarantee for 1P3704 Seal Ring
▶| Dimensions | 1.73x1.73x0.24 |
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I put 2 of the same orders in due to a web page error and shortly after I was contacted by Deb from customer service asking if I meant to place both orders. She was very helpful, the email was very well written and it genuinely made me feel better about the whole experience. She resolved the issue quickly and with there not being much of customer service these days I was very happy so see that is not the case everywhere!!!
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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. -
Great company to deal with. Answered my questions with detail and shipped me the part in good time! I will be dealing with them more in the future!
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Science I buy parts from propel parts I don’t have to spend too much down time always on time and good service
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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.
Frequently Asked Questions
What is the function of the 1P3704 / 6J3625 seal in Caterpillar equipment?
The 1P3704 / 6J3625 seal is designed to prevent fluid leaks in critical engine and hydraulic systems. It helps maintain proper lubrication and pressure by sealing shafts, housings, or mating surfaces, protecting internal components from contamination and ensuring reliable equipment performance.
Where is the 1P3704 / 6J3625 seal commonly used?
Always cross-reference the 1P3704 part number against your equipment manual before purchasing, as configurations can differ across serial number ranges. Not sure? The Propel Parts team is happy to confirm the right fit for your machine.
What does a sealing ring or oil seal do in heavy equipment systems?
A sealing ring or oil seal, like the 1P3704 / 6J3625, creates a tight barrier between moving parts and stationary housings. This prevents oil, coolant, or hydraulic fluid from leaking out while keeping dirt, dust, and moisture from entering sensitive internal mechanisms — essential for maintaining fluid pressure and reducing wear.
Is the 1P3704 / 6J3625 seal an OEM‑compatible replacement part?
Yes the 1P3704 replacement is engineered to OEM standards, so you can count on dependable performance in heavy-duty conditions. If you have questions about fitment or compatibility, the Propel Parts team is ready to assist.
How do I install the 1P3704 / 6J3625 seal correctly?
To install the 1P3704 / 6J3625 seal properly:
- Clean the area thoroughly to remove debris, old sealant, and oil residue.
- Position the new seal straight and even in the housing or groove.
- Gently press the seal into place using a seal driver or appropriate tool.
- Reassemble components and install fasteners according to the manufacturer’s torque specs.
Proper installation helps prevent leaks and ensures long‑lasting performance.
What are signs that a seal like 1P3704 / 6J3625 needs replacement?
Common indicators include:
- Oil, hydraulic fluid, or coolant leaks near housings or shafts
- Loss of fluid pressure in hydraulic or lubrication systems
- Contaminated fluid due to seal failure
- Unusual noise or overheating due to inadequate lubrication
Replacing a worn seal promptly helps protect internal parts and avoid larger mechanical issues.
Why is using the correct seal important for Caterpillar equipment?
Incorrect parts can cause fitment issues, system leaks, or accelerated wear that wouldn't occur with the right replacement. Using a 1P3704 that matches the original specs ensures proper function and protects the surrounding system.
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
