New CAT 1086631 (2W3414) Plunger & Barrel Caterpillar Aftermarket for CAT 3406, 3406B, 3406C, 3412 and more

$71.96
In Stock • Ships Today • Order By 3pm ET
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Details

Description for 1086631 Plunger And Barrel

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This aftermarket Caterpillar 1086631 Plunger And Barrel 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 Plunger And Barrel.
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 1086631 Plunger And Barrel

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Replacement Part Number(s): 108-6631, 2W3414
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: 0.83 LBS | 0.38 KG
Dimensions: 2.17 x 2.17 x 5.91 (inches)
Condition: New

Exact Fit Guarantee for 1086631 Plunger And Barrel

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Looking for a reliable replacement Caterpillar 1086631 Plunger And Barrel ? 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
★★★★★

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!!

★★★★★

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

★★★★★

I own old cat bulldozers D8k,D8H,D8N that required frequent repairs and servicing. it was erratic and practically cumbersome to keep them running without constant supply of reliable
and affordable spares in Uganda a third world country however,since I started dealing with propel parts US,my bulldozers have earned reliability and efficiency in providing high quality services to clients and making me a great dependable construction company in earth moving.
My shipments are always handled expeditiously and delivered in record time to Uganda this is awesome from Propelparts.
My business is booming by the clock for finding the best partner in Propelparts.

★★★★★

Great Customer Service!
Had some difficulties with the website. Contacted customer service. Once I communicated the issues I was having Steven worked through getting my order processed and making sure I got my receipt and all issues resolved. Perfect!

★★★★★

La mejor experiencia y calidad

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Product Questions

Frequently Asked Questions

What is the Caterpillar 1086631 plunger barrel used for?

The Caterpillar 1086631 plunger barrel is a high-quality aftermarket fuel system component designed for fuel injection pump applications in Caterpillar engines. It is manufactured to meet or exceed OEM specifications for dependable fuel delivery and long-lasting engine performance.

What are the benefits of the 1086631 plunger barrel?

  • Supports accurate fuel injection performance
  • Helps maintain dependable engine combustion
  • Manufactured from durable materials for long service life
  • Designed to meet or exceed OEM specifications
  • Suitable for demanding heavy-duty engine applications

Is the 1086631 plunger barrel compatible with multiple Caterpillar engines?

Yes, this plunger barrel may fit Caterpillar 3406, 3406B, 3406C, 3412, and related engine applications depending on fuel system configuration. Check your manual or reach out to Propel Parts for help verifying fitment.

Why is replacing worn fuel injection components important?

Replacing worn fuel injection components helps maintain proper fuel delivery, support efficient combustion, and reduce unnecessary wear on engine systems.

Does the 1086631 plunger barrel meet OEM standards?

Yes, this aftermarket replacement is designed to meet or exceed OEM specifications for fit, durability, and dependable fuel system performance.

Can a damaged plunger barrel affect engine performance?

Yes. A worn or damaged plunger barrel may contribute to fuel delivery problems, rough engine operation, reduced fuel efficiency, and increased maintenance needs.

Are related Caterpillar fuel system components available from Propel Parts?

Yes. Propel Parts carries a wide range of fuel injection and engine replacement components for Caterpillar equipment. You can also explore the Caterpillar 3400 Nozzle 7N9843 for another related fuel system replacement option.

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

This 1086631 Plunger And Barrel is compatible with the following models:
3406, 3406B, 3406C, 3412 & more...

Shipping | Returns

shipping 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 no stress 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 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

Exact Fit Guarantee®

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