5M8137 V-Belt Single for CAT 3116, 3126, 3126B & more

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

Buy with Confidence: All parts are covered by our warranty

$7.82
In Stock • Ships Today • Order By 3pm ET
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SKU
5M8137CTP
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Description for 5M8137 Engine Belt

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This aftermarket Caterpillar 5M8137 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 5M8137 Engine Belt

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Replacement Part Number(s): 5M-8137
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: 0.50 LBS | 0.23 KG
Dimensions: 4.72 x 0.59 x 21.26 (inches)
Condition: New

Exact Fit Guarantee for 5M8137 Engine Belt

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Looking for a reliable replacement Caterpillar 5M8137 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 3114, 3116, 3126, 3126B, 3304, 3306, D330C, D333C, 3208
Dimensions 4.72x0.59x21.26
Customer Reviews
  1. 100%
    At the beginning, I experienced significant delays and communication issues regarding my order, which honestly caused serious concern because the parts were urgently needed for an important project.

    However, after continuous follow-up, the Propel Parts team handled the matter professionally, provided shipment tracking, and the parts finally arrived successfully.

    I especially appreciate their willingness to communicate, acknowledge the issue, and continue working toward resolving the situation.

    In international business, delays can sometimes happen, but what matters is the final commitment to resolving the issue properly.

    Thank you to Daniel and the team, and hopefully future transactions will be smoother for both sides.
  2. 100%
    Great customer services, the best
  3. 100%
    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!
  4. 100%
    Great site and price
  5. 100%
    I almost want to cry ;( writing this review because I dont want people to find out about them and rather keep them in my pocket but they deserve it…
    This company is great with Quality Products at amazing prices! Sometimes, their website is not the most accurate but is user friendly and if you got questions they will call back and are very prompt in responding via a call or text to verify inventory before placing an order.
    I really appreciate and look forward to continuing to work with you all especially Anthony — he is amazing & the best!!!
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Frequently Asked Questions

Product

What is the 5M8137 V-Belt Single used for?

This V-Belt Single transmits power from the engine to essential components like the alternator, water pump, and fan, ensuring smooth operation and optimal performance.

How to install this 5M8137 V-Belt Single?

Follow the steps below to properly install the 5M8137 V-Belt Single Part:
1. First, turn off the engine and allow it to cool completely 
2. Remove the old belt and inspect pulleys for wear or debris 
3. Position the new V-belt over the pulleys following the correct routing 
4. Adjust the tension according to the equipment’s specifications 
5. Start the engine to check for proper alignment and smooth operation

Is the 5M8137 V-Belt compatible with my equipment?

This belt fits various models including 3114, 3116, 3126, 3126B, 3304, 3306, D330C, D333C, 3208, and similar engines. Always confirm your engine model before purchase for compatibility. If you are unsure don’t hesitate to reach out to Propel Parts for help verifying fitment.

Does this 5M8137 belt meet performance standards?

Yes, this 5M8137 V-Belt Single is designed to meet OEM specification, providing reliable durability, high strength, and consistent performance under demanding conditions.

How long will this 5M8137 V-belt last?

Belt life depends on usage, maintenance, and operating conditions. Regular inspections for wear, cracks, or fraying can help maximize service life and prevent unexpected downtime.

Can I replace this 5M8137 belt myself?

Yes, with basic mechanical skills and proper tools, you can replace the belt safely. Make sure to follow the correct routing and tensioning procedures to avoid engine or belt damage.

How should I maintain the V-belt for best performance?

To maintain this properly, you should:
1. Keep pulleys clean, 
2. Maintain proper tension
3. Avoid exposure to oil or chemicals. 
4. Regular checks for wear and alignment ensure long-term performance and reduce the risk of failure.

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

This 5M8137 Engine Belt is compatible with the following models:
3114, 3116, 3126, 3126B, 3304, 3306, D330C, D333C, 3208 & 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.

Exact Fit Guarantee®

The right part — or we'll make it right.

1

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2

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Place your order, then send us your serial number before it ships.

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3

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