New 3B8491 Fitting Grease Replacement suitable for Caterpillar Equipment

$2.03
In Stock • Ships Today • Order By 3pm ET
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Description for 3B8491 Fitting

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This aftermarket Caterpillar 3B8491 Fitting 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 Fitting.
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 3B8491 Fitting

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Replacement Part Number(s): 3B-8491
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: 0.07 LBS | 0.03 KG
Dimensions: 2.64 x 0.47 x 2.64 (inches)
Condition: New

Exact Fit Guarantee for 3B8491 Fitting

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Looking for a reliable replacement Caterpillar 3B8491 Fitting ? 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

★★★★★

Excelente servicio rapido, responsable y confiable

★★★★★

Excellent experience.
Mike has been very helpful. I am looking forward to keep doing business with them

★★★★★

Received 15 items within 5 days from placing order !
Great. !

★★★★★

To my country the company is doing great
The products they market is good and
Affordable.
They can delivery to any country, stree free.
Tested and trusted.

★★★★★

customer service and parts availability is fantastic

★★★★★

Great service affordable parts

★★★★★

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

★★★★★

Great people! Good and fast service. Always looking to help get what you need! 10/10 ????????

★★★★★

100% recommend it is a good parts by par for five years and everything is good

★★★★★

Very helpful. Every question or request I had was answered quickly. I didn't have a parts book for my excavator but that was no problem for them. If you need parts for your Cat, give them a shot.

Product Questions

Frequently Asked Questions

What is the Caterpillar 3B8491 grease fitting used for?

  • The 3B8491 grease fitting is designed to allow proper lubrication of heavy equipment components.
  • It helps deliver grease into moving parts to reduce friction and wear during operation.

Why are grease fittings important in heavy equipment maintenance?

Grease fittings help ensure critical components receive proper lubrication, which can reduce premature wear, minimize friction, and extend equipment service life.

What equipment applications commonly use the 3B8491 fitting?

This grease fitting may be used in various Caterpillar equipment applications including pivot points, bearings, joints, and other moving assemblies that require regular lubrication.

What are signs that a grease fitting should be replaced?

  • Common signs include clogging, grease leakage, corrosion, physical damage, or difficulty applying grease during maintenance.
  • Reduced or blocked grease flow can also indicate that the fitting is no longer functioning properly and should be replaced.

Can a damaged grease fitting affect equipment performance?

Yes. A faulty grease fitting may prevent proper lubrication, potentially leading to increased wear, overheating, and reduced component lifespan.

Is the 3B8491 grease fitting compatible with all Caterpillar machines?

Compatibility depends on your machine model and lubrication system requirements. Check your manual or reach out to Propel Parts for help verifying fitment.

Are aftermarket grease fittings reliable?

Yes. High-quality aftermarket grease fittings that meet or exceed OEM specifications can provide dependable durability and lubrication performance in demanding heavy equipment environments.

Are there related Caterpillar maintenance components commonly used with this fitting?

Yes, components such as the Caterpillar 3S2093 cable tie may also be used during maintenance and equipment assembly applications to help secure hoses and wiring around lubricated components.

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

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