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

  • New Seal, Oil Replacement suitable for Caterpillar Equipment
  • Made to USA Specification

Buy with Confidence: All parts are covered by our warranty

$0.98
In Stock • Ships Today • Order By 3pm ET
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SKU
2W4037CTP
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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.
More Information
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
Dimensions 1.00x1.00x0.26
Customer Reviews
  1. 100%
    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!!
  2. 100%
    Great affordable option for aftermarket parts
    Found Propel Parts while looking for parts to repair a D6C dozer that has been sitting for 20 years. Great parts, great prices, fast shipping and excellent customer service.
  3. 100%
    Rapid response! Excellent service!
  4. 100%
    Great site and price
  5. 100%
    Great service at an affordable price to get my machine back going.
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Frequently Asked Questions

Product

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?

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

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.

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