New 2W4037 Seal, Oil Replacement suitable for Caterpillar PR-1000, PR-1000C, PS-500, 3208, 3412, 3608, SR4, 3606, 3612, 3616, SR4, 3304, 3306, 3612, D330C, D333C, 3606, C280-12, C280-16, C280-6, C280-8, 1673C, 613C, and more

$0.98
In Stock • Ships Today • Order By 3pm ET
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Description for 2W4037 Oil Seal

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This aftermarket Caterpillar 2W4037 Oil Seal 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 Oil Seal.
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 2W4037 Oil Seal

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Replacement Part Number(s): 2W-4037
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: 1.00 x 1.00 x 0.26 (inches)
Condition: New

Exact Fit Guarantee for 2W4037 Oil Seal

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Looking for a reliable replacement Caterpillar 2W4037 Oil Seal ? 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

★★★★★

Australian buyer, sales where professional and very responsive with secure parts identification.
Highly recommend.
Bedrock Exploration Pty Lt, Australia

Customer Follow-Up After Delivery:

Thank you Deb and your colleague Anthony A for your help in supplying a replacement part which arrived in good time and is running smoothly.
I shall continue to use your services and recommend you to other remote miners, as your services and delivery times are better than our home-based suppliers.
With thanks again.
Regards, Gerard

★★★★★

Customer Service.
I recently had to cancel an order with Propel Parts, and I was thoroughly impressed by the prompt and efficient service I received. Steven handled my request with professionalism and speed, ensuring a hassle-free process. I've purchased parts from Propel Parts before and have never been disappointed. Their consistent reliability and excellent customer service keep me coming back.

★★★★★

Cat blade pins.
Easy transaction good web site.

★★★★★

Awesome and diligent support. Would definitely recommend

★★★★★

Buen servicio y atención

★★★★★

Awesome service prices and quality parts

★★★★★

Online order.
I had a good experience this morning I placed an online order and everything went smoothly. The staff at propel parts has always been helpful in the past when I have been looking for harder to find parts or something that wasn’t listed online.

★★★★★

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!!!

★★★★★

Helpful with making sure parts fit my machine

★★★★★

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

Product Questions

Frequently Asked Questions

What is the 2W4037 seal used for?

The 2W4037 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 2W4037 seal?

Fitting the 2W4037 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 2W4037 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 2W4037 compatible with?

Compatibility for the 2W4037 seal varies by machine and configuration, so cross-check it for your Caterpillar equipment before ordering. 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.

Does the 2W4037 seal meet performance standards?

Yes. The 2W4037 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 2W4037 be replaced?

The 2W4037 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 2W4037 seal?

When the 2W4037 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 2W4037 important, and what related parts work with it?

Replacing the 2W4037 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 8T6850 Seal O-Ring and 2314457 Gasket Ctp.

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

This 2W4037 Oil Seal is compatible with the following models:
1673C, 3208, 3304, 3306, 3412, 3606, 3608, 3612, 3616, 613C, C280-12, C280-16, C280-6, C280-8, D330C, D333C, PR-1000, PR-1000C, PS-500, SR4 & more...

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

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