New 9S3808 (4H1991) Regulator Temp Replacement suitable for Caterpillar Equipment
- New Regulator Temp Replacement suitable for Caterpillar Equipment
- Made to USA Specification
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Description for 9S3808 Water Temperature Regulator
â–¶Specification for 9S3808 Water Temperature Regulator
â–¶Exact Fit Guarantee for 9S3808 Water Temperature Regulator
â–¶| Models | 44H, D4D |
|---|---|
| Dimensions | 2.76x2.76x3.54 |
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The Double Order Catastrophe
My co-worker placed an order and wasn't sure it went through online. I later placed the same order thinking the previous order didn't go through. To my surprise both orders went through, and I needed to cancel one of the orders. I called and spoke with someone who instructed me someone would contact me about the situation. I was contacted by Misty and she said she would do her best to cancel one of the orders but not sure if she could because they were next day orders. A small tome later I received an email saying she was able to cancel one of the orders. Thank you to Misty and the entire Propel Parts Team. Greatly appreciated!! -
They went above and beyond to make sure my order was right. Thanks again
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Customer service was great! There was a small problem with the part and they responded quickly and respectfully until was resolved! Highly recommended
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He was a great help with ordering and refunding the sales tax,
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Excellent customer service and parts.
You guys have always gave excellent customer service!!! Very prompt responsiveness. Warranty services are superb. I have been using them for quite awhile now on equipment I have. Always great prices for parts! Keep up the great work guy's
Frequently Asked Questions
What is the 9S3808 component used for?
The 9S3808 component plays a specific role in its assembly on Caterpillar equipment, contributing to safe, dependable performance.
How do I install the 9S3808 component?
To install the 9S3808 properly, prepare the area first and confirm the result afterward. Use these steps:
- Shut the machine down and isolate power before working on the assembly
- Clean the mating surfaces and inspect them for wear or damage
- Remove the old part and check the area for debris
- Fit the new 9S3808 in the correct orientation per your service manual
- Reassemble to specification and confirm correct operation before returning to service
Which Caterpillar machines is the 9S3808 compatible with?
Fitment for the 9S3808 depends on your specific Caterpillar model and the assembly it serves, so confirm the application before you order. Or reach out to Propel Parts for help verifying fitment.
Does the 9S3808 component meet performance standards?
Yes. The 9S3808 is manufactured to meet OEM specifications for tolerance and material quality. When replacing, choose genuine or high-quality aftermarket parts that meet or exceed OEM specifications for dependable, long-term performance.
How often should the 9S3808 be replaced?
Plan to replace the 9S3808 during a rebuild of the surrounding components, or sooner if inspection shows it is past its serviceable limit.
What are the signs of a worn or failing 9S3808 component?
A worn 9S3808 usually gives early warning through the assembly it supports. Watch for these signs:
- Visible wear, cracking, or corrosion on inspection
- Reduced performance or reliability in the assembly
- Unusual noise, movement, or leaks near the part
- Premature wear on the components around it
Why is the 9S3808 important, and what related parts work with it?
A sound 9S3808 is inexpensive insurance against larger repairs. Servicing it on time with parts that meet OEM specifications keeps the whole assembly working as intended. Related hardware on our site includes 3879503 Seal Valve and 1433125 Oil Cooler Lines Gasket Kit.
This 9S3808 Water Temperature Regulator is compatible with the following models:
44H, D4D & more...

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.
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