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Belt: Generator, (Analog)

Product Code: 781945 N/O, 6PK3150

Used: Цена по запросу

New: 96.00$

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Step 2: Receiving information
The consultant will provide you with the
necessary information about the products,
their cost and availability.

Step 3: Order confirmation
The consultant confirms the order and
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methods and terms, and can also take a
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Place an order by phone:
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+7 (928) 563-26-64 Place an order E-Mail:
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Step 2: Sending a letter
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request by mail: info@rbhshop.ru.
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wait answer.


We are the company «RefBelholod»
We have been working with refrigerators
CARRIER & THERMO KING for more than 10 years.


We have a large warehouse of secondary spare parts for refrigerators. Excellent quality of spare parts, all spare parts are inspected!


📞 Contact us
For all questions, as well as for advice, please write to us on WhatsApp!

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Due to technical reasons, consultation by phone is not always possible. In this case, please contact us via WhatsApp. Sorry for the inconvenience.
+7 (916) 529-69-16


🛒 Placing an order

To place an order, contact us in any way convenient for you. Send us a link to the spare part or its article number.


✅ Order delivery

If the spare part is in our warehouse in Minsk, we will try to quickly deliver it to any city in the CIS where there is SDEK.

If the spare parts are not in the warehouse in Minsk, we will try to find them in the UAE and send them for you, and we will also deliver from the warehouse in Moscow to any city where there is SDEK.

Alternator Drive Multi-Ribbed Belt 6PK3150 (Aftermarket Premium) Thermo King SLX / SLXe / SLXi cross 78-1945 / 78-1744

The Premium Aftermarket Alternator Drive Belt Thermo King 78-1945 (Charging System Belt 6PK3150 / High-Grade Multi-Ribbed Replacement) is a high-performance mechanical power transmission component designed as a reliable and cost-effective alternative for the SLX, SLXe, and the latest SLXi trailer refrigeration series. Featuring a 6-rib PK profile and a 3150 mm effective length, this belt is engineered to replace the original elastic belts on Yanmar 486 diesel engines.

In SLXi / SLXe configurations, the alternator is critical for maintaining stable power delivery to the SR-3 microprocessor controller and charging the starter battery. The 6PK3150 belt ensures direct torque transfer from the diesel crankshaft pulley. Throughout fleet operations, the belt drive faces extreme thermal stress, road debris, and moisture. Rib wear or cord elongation leads to belt slippage, triggering "Check Alternator" or "Battery Not Charging" fault codes. A snapped belt causes an immediate reefer shutdown due to low voltage, risking the safety of temperature-sensitive logistical cargo. Our aftermarket alternative (marked as 6PK3150) is manufactured from high-grade EPDM rubber with reinforced polyester tensile cords. It provides OEM-standard flexibility and wear resistance, ensuring consistent charging performance without the high original manufacturer markup.

This replacement component is a precision-engineered cross-reference part. It is designed to match the factory specifications of Thermo King 78-1945 (781945), 78-1744 (781744), 78-1507 (781507), and the 1E11111H85 technical reference.

Technical Information:

  • Manufacturer: Aftermarket (Premium Factory Quality / OEM-grade alternative)
  • Belt Type: Multi-ribbed (Poly-V), 6PK profile (6 ribs)
  • Dimensions: Effective length 3150 mm (6PK3150)
  • Compatibility Crosses: Thermo King 78-1945, 781945, 78-1744, 78-1507, 1E11111H85
  • Application: Charging system drive (Alternator)
  • Material: Heavy-duty heat and oil resistant EPDM rubber with reinforced cords

Used in Equipment Logistics:
Extensively applied for maintenance and repairs on modern Thermo King trailer units powered by Yanmar 486 diesel blocks:
SLX-series: SLX-100, SLX-200, SLX-300, SLX-400, SLX Whisper / Spectrum;
SLXe-series: SLXe-200, SLXe-300, SLXe-400, SLXe Spectrum builds;
SLXi-series: SLXi-200, SLXi-300, SLXi-400, and SLXi Spectrum platforms.

Catalog Number:

Cross References: 6PK3150, 78-1945 (Aftermarket), 78-1744, 78-1507, 1E11111H85

Delivery and Warranty:
Fast structural shipping layout options across Russia and Belarus. 1-month comprehensive operational warranty included. Delivered in protective trade packaging to ensure material integrity and prevent rib damage during transit.


Product Description: Buy premium aftermarket multi-ribbed alternator drive belt (6PK3150) Thermo King 78-1945 / 78-1744 for SLX, SLXe and latest SLXi reefer units. Reliable charging performance. Fast shipping.

thermo king 78-1945, buy 6PK3150 belt, alternator belt 781945 replacement, slxi alternator belt, 78-1744, 1E11111H85, reefer belt drive components, refbelholod.

Price information is updated automatically, every night!


The price during the day can change several times, in such cases it is unloaded manually.

In most cases, RefBelholod provides up-to-date information on prices, but no one is immune from a technical failure!


We try to ensure that the information is always up-to-date.

We will pack it beautifully and provide it for you around the clock!

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Tags: Belt Drive / Thermo King SLX / SLXe / SLXi