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9l6643 V-Belt Single for CAT 3406B, 3406E, 3412E & more

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  • New V-Belt Single Replacement suitable for Caterpillar Equipment
  • Made to USA Specification

Buy with Confidence: All parts are covered by our warranty

$13.91

Six Month Financing

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4.7

(Site rating)
In Stock | Ships Out Today | Order By 3pm ET
SKU
9L6643CTP
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Description for 9L6643 Engine Belt

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This aftermarket Caterpillar 9L6643 Engine Belt 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 Engine Belt.
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 9L6643 Engine Belt

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Replacement Part Number(s): 9L-6643
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: 0.60
Condition: New

Exact Fit Guarantee for 9L6643 Engine Belt

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Looking for a reliable replacement Caterpillar 9L6643 Engine Belt ? 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 C18, 3406B, 3406E, 3412E, C15, C18, C30, C32, TH48-E70, TH48-E70, 3408E, SR4, SR4B, SR5, C27, C32, C32
Dimensions 26.38x6.69x0.98
Customer Reviews
  1. Claudia (Florida, USA)
    100%
    Excellent service!! Yes, very satisfied with the service, you have been very kind!
  2. Robin
    100%
    Amazing service, emails answered very quickly with simple straight forward answers. Haven’t received the parts yet but ordering them was quick and easy.
  3. Robert
    100%
    Helpful with making sure parts fit my machine
  4. Branimir Pjevac (Serbia)
    100%
    Quality Caterpillar parts
    Very fast delivery and respons from Propel Parts
    This is my second time that I bought something from it, first time delivery time was in one week from US to Serbia
  5. Manuel Rodríguez (Florida, USA)
    100%
    100% excelente
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Frequently Asked Questions

Product

What is the 9L6643 V-Belt Single used for?

This V-belt is designed to transfer power efficiently between pulleys in heavy machinery, helping engines and accessories run smoothly.

How to Install this 9L6643 part?

Take these steps to extend the lifespan of your 9L6643 V-Belt.
1. Ensure the engine is off and cool. 
2. Remove the old belt, inspect pulleys for wear, then position the new belt on the pulleys following the correct routing. 
3. Adjust tension according to the equipment manual and double-check alignment before operation.

Which machines are compatible with this V-belt?

This belt is compatible with multiple engine models, including C18, 3406B, 3406E, 3412E, C15, C30, C32, TH48-E70, 3408E, SR4, SR4B, SR5, C27, and more. Always verify compatibility with your equipment before installation. 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.

How long will this 9L6643 V-belt last?

This 9L6643 V-Belt Single is designed to OEM specifications, offering durable performance under normal operating conditions. Proper maintenance and correct tensioning help maximize its service life.

Can I reuse my old V-belt?

Reusing an old or worn belt is not recommended as it can slip, fray, or break, potentially causing system damage. Installing a new belt ensures reliable operation.

How can I maintain the 9L6643 V-belt for optimal performance?

Use the following steps to keep your 9L6643 V-belt performing at its best.
1. Regularly inspect for wear, cracks, or fraying. 
2. Keep pulleys clean and check belt tension periodically to prevent slippage and uneven wear

What should I do if the belt slips or makes noise?

Check for proper tension and alignment first. If issues persist, replace the belt immediately to avoid damage to engine components or accessories.
Questions About this Part?
Have a question about fit, compatibility, shipping, warranty, or returns?

This 9L6643 Engine Belt is compatible with the following models:
C18, 3406B, 3406E, 3412E, C15, C18, C30, C32, TH48-E70, TH48-E70, 3408E, SR4, SR4B, SR5, C27, C32, C32 & more...

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.

Same Day Shipping

Orders placed weekdays, by 3pm ET, ship out same day.

United States & Canada

Click Check Delivery Times for discounted Ground, 2-Day & Overnight rates

International Shipping

We have served customers in over 90 countries. Click Check Delivery Time .

Tracking Number

Tracking will be emailed within 24-48 hours of your order.

QUALITY GUARANTEED

1 YEAR UNLIMITED WARRANTY

SAME DAY SHIPPING

ORDER BY 3PM EST. EXCL. WEEKEND

PRICE GUARANTEED

NO CORE OR EXCHANGE CHARGES

NO HASSLE RETURNS

EASY RETURNS & FAST REFUNDS

Trustpilot

4.8 Rating. Excellent
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