New 6E4004 Seal-Shaft Replacement suitable for Caterpillar Equipment

  • New Seal-Shaft Replacement suitable for Caterpillar Equipment
  • Made to USA Specification

Buy with Confidence: All parts are covered by our warranty

$6.30

4.7

(Site rating)
In Stock | Ships Out Today | Order By 3pm ET
SKU
6E4004CTP
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Description for 6E4004 Hyd Pump Seal

This aftermarket Caterpillar 6E4004 Hyd Pump 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 Hyd Pump 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 6E4004 Hyd Pump Seal

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: 0.04 LBS | 0.02 KG
Dimensions: 2.05 x 2.05 x 0.24 (inches)
Condition: New

Exact Fit Guarantee for 6E4004 Hyd Pump Seal

Looking for a reliable replacement Caterpillar 6E4004 Hyd Pump 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
Dimensions 2.05x2.05x0.24
Customer Reviews
  1. 100%
    Original Review (Spanish)
    Si necesitas piezas de repuesto a buen precio para tu m?quina grande y quieres un servicio al cliente atento, esta tienda es una muy buena opci?n.

    English Translation
    If you need affordable replacement parts for your heavy equipment and want attentive customer service, this store is a very good option.
  2. 100%
    Great customer service answered email question quickly.
  3. 100%
    Excellent and prompt response.
    Propel parts team helped me greatly regarding a special request and I always get prompt response.
    They’re fantastic!
  4. 100%
    Great service affordable parts
  5. 100%
    Good Stuff.
    We have had a couple shipping issues, but each time they made it right and we ended up getting what we need. Quality parts at half the price of OEM.
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Frequently Asked Questions

Product

What is the function of the 6E4004 shaft seal?

The 6E4004 shaft seal is designed to prevent fluid leakage around rotating shafts in engines, pumps, and other mechanical assemblies. It helps maintain proper lubrication and pressure while keeping contaminants out, which supports smooth operation and protects internal components.

What is the function of the 6E4006 rotating group (right)?

The 6E4006 rotating group (right) is a key assembly that supports and enables rotational movement within mechanical systems. It typically includes bearings and related components that allow shafts or other parts to rotate smoothly with minimal friction, helping maintain reliable operation in heavy machinery or industrial equipment.

How do I install the 6E4004 shaft seal?

Please follow these general steps for proper installation:

  1. Turn off the engine or machine and ensure it is safely secured.
  2. Remove any components blocking access to the shaft area.
  3. Carefully extract the old seal without damaging the shaft surface.
  4. Clean the shaft and surrounding housing thoroughly.
  5. Position the new shaft seal squarely and press it into place using the appropriate tool or driver.
  6. Reassemble any removed components and tighten fasteners to the recommended torque.
  7. Test the system to confirm the seal is holding properly.

Always consult your equipment’s service manual for exact installation instructions and safety procedures.

How do I install the 6E4006 rotating group (right)?

Please follow these general steps for proper installation:

  1. Turn off the engine or machine and ensure it is safely supported.
  2. Remove any covers, housings, or obstacles blocking access to the installation area.
  3. Carefully extract the old rotating group if present.
  4. Clean the mounting surfaces and inspect for wear or damage.
  5. Position the new rotating group (right) precisely in its designated orientation.
  6. Secure all fasteners to the correct torque specifications as outlined in your service manual.
  7. Reassemble any removed components and test rotate to confirm proper installation.

Refer to your equipment’s service documentation for exact instructions and safety precautions.

Which machines or systems use the 6E4004 shaft seal?

The 6E4004 shaft seal is used in a variety of heavy equipment and industrial machinery applications where proper sealing around a rotating shaft is required. Compatibility depends on your machine model and design, so verify fitment with your equipment’s part documentation before ordering. If you are unsure don’t hesitate to reach out to Propel Parts for help verifying fitment.

Which machines or systems use the 6E4006 rotating group (right)?

The 6E4006 rotating group (right) is designed for use in heavy equipment or industrial machinery where this specific assembly is needed to support rotational components. Compatibility depends on your machine’s configuration, so always verify the part number with your service manual before ordering. Check your manual or reach out to Propel Parts for help verifying fitment.

Does the 6E4004 shaft seal meet performance expectations?

Yes, the 6E4004 shaft seal is engineered to meet or exceed OEM specifications for sealing durability and effectiveness. When replacing, choose genuine or high-quality aftermarket parts that meet or exceed OEM expectations to help ensure reliable sealing performance and long-term service life.

Does the 6E4006 rotating group (right) meet performance expectations?

Yes, the 6E4006 rotating group (right) is engineered to meet or exceed OEM specifications for durability, fit, and function. When replacing components, choose genuine or high-quality aftermarket parts that meet or exceed OEM expectations to help ensure dependable operation and long service life.

How often should a shaft seal like the 6E4004 be inspected or replaced?

Shaft seals should be inspected during routine maintenance or whenever a system shows signs of fluid leakage. Replace the seal if you notice wear, cracking, hardened material, or any leakage around the shaft to maintain system integrity and prevent further component damage.

How often should a rotating group like the 6E4006 be inspected or replaced?

Rotating groups should be checked during routine maintenance or when you notice changes in performance. If there are signs of excessive wear, unusual noise, or play in rotating parts, inspect the assembly and replace it as needed to prevent further damage to surrounding components.

What are common signs that a shaft seal needs replacement?

Typical indicators include:

  1. Visible fluid leaking around the shaft area
  2. Reduced lubrication around components
  3. Unusual noises or vibration from the shaft
  4. Hardened or cracked seal material

Early detection through regular inspection helps avoid more extensive repairs and keeps machinery operating smoothly.

What are common signs that the 6E4006 rotating group (right) needs attention?

Typical indicators include:

  1. Unusual noises during rotation, such as grinding or clicking
  2. Excessive vibration or wobble in the rotating assembly
  3. Difficulty in smooth rotation
  4. Visible wear or damage to bearings or related parts

Prompt inspection and replacement help maintain system performance and prevent more serious issues.

Why is using a quality shaft seal important for equipment performance?

A quality shaft seal helps maintain proper fluid containment and lubrication around critical moving parts, which supports efficient performance and minimizes wear. Using genuine or high-quality aftermarket parts that meet or exceed OEM expectations helps ensure dependable sealing, reduces maintenance issues, and extends the life of your equipment.

Why is using a quality rotating group important for equipment performance?

A quality rotating group helps ensure smooth, low-friction movement of critical components, reducing stress on the system and enhancing operational stability. Using genuine or high-quality aftermarket parts that meet or exceed OEM expectations supports efficient performance, lowers the risk of premature failure, and contributes to longer equipment life.

Questions About this Part?
Have a question about fit, compatibility, shipping, warranty, or 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.