New 1P3703 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
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This part is guaranteed to fit your machine.
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×WILL PART FIT?
Yes, it will fit! We offer an Exact Fit Guarantee® or
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HOW WE GUARANTEE, EXACT FIT
Before shipping your order, we use CAT SIS to ensure
this part is the exact fit for your equipment.
BUY WITH CONFIDENCE
Purchase with confidence because this part includes a
1 year warranty and it's guaranteed to fit & perform.
Description for 1P3703 Seal Ring
▶Specification for 1P3703 Seal Ring
▶Exact Fit Guarantee for 1P3703 Seal Ring
▶| Dimensions | 1.50x1.50x0.20 |
|---|
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Tony White (Iowa, USA)100%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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Enrique Arango100%Excelente servicio rapido, responsable y confiable
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Susan (West Virginia, USA)100%Satisfied Customer.
I made my first purchase from Propel Parts last week. I was very happy with the response time and the delivery was fast, fast, fast! Also, the quality of the product is superb and at a great low price.
Keep up the great work! -
Fernando (Mexico)100%La mejor experiencia y calidad
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Stan Pfeiler (Iowa, USA)100%Great service They respond back very fast always try…
They respond back very fast always try there best to get what I need
Very friendly
Prices are reasonable
If there is a problem they fix it
Been working with them 4 years and hopefully many more
Frequently Asked Questions
What is the 1P3703 seal replacement used for?
The 1P3703 seal replacement is designed to prevent fluid leaks in Caterpillar equipment by providing a tight, reliable seal between components. It helps maintain hydraulic or mechanical system pressure, protect internal parts from contamination, and ensure consistent machine performance.
Which Caterpillar equipment is compatible with the 1P3703 seal?
Compatible with a wide range of Caterpillar machinery and engine systems, the 1P3703 is a commonly used replacement part. Machine configurations and serial number ranges can affect compatibility, so it\'s worth confirming the 1P3703 against your equipment manual before placing an order. Contact Propel Parts if you need help verifying fitment.
What are the signs that a 1P3703 seal needs replacement?
A worn or damaged 1P3703 seal may cause:
- Hydraulic or fluid leaks
- Reduced system pressure or efficiency
- Contamination entering sensitive components
- Unusual noises or vibrations in the system
Replacing the seal promptly prevents further damage and ensures reliable operation.
Does the 1P3703 seal replacement meet OEM standards?
Yes, it does. Engineered to meet OEM specifications, the 1P3703 is a dependable replacement for the original part. If you\'re unsure whether it\'s the right match for your machine, contact Propel Parts and our team can assist.
How do you install the 1P3703 seal replacement?
General installation steps include:
- Turn off the equipment and relieve system pressure
- Remove the worn seal carefully from its seating
- Clean the surrounding surfaces thoroughly
- Install the new 1P3703 seal, ensuring proper alignment and seating
- Reassemble components and check for leaks
Always follow your equipment's service manual for detailed instructions and torque specifications.
How often should the 1P3703 seal be replaced?
There is no fixed replacement interval. Inspect the 1P3703 seal regularly during routine maintenance or whenever leaks, pressure drops, or performance issues are observed. Timely replacement helps maintain system integrity and prevents damage to connected components.
Can I use a premium aftermarket 1P3703 seal replacement?
Of course. Premium aftermarket 1P3703 replacements built to OEM standards are a common and practical choice. What matters most is selecting a part that meets the required specs — ensuring proper fitment and reliable long-term performance.

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.
Exact Fit Guarantee®
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