Flange bushing (Tensioner bushing)
Used: Price on request
Step 1: Click "Make a request"
After clicking the button, you will be redirected
to the WhatsApp application. Send us a link to the spare part or provide its code.
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
provides information about the delivery
methods and terms, and can also take a
photo or video of the spare part upon request.
Place an order by phone:
Contact us by phone and provide the code
spare parts.
+7 (928) 563-26-64
Place an order E-Mail:
Step 2: Sending a letter
Step 1: Click "E-Mail"
After clicking the button, you will be redirected
to your mail client.
If the "Mail client" does not open. Send us a
request by mail: info@rbhshop.ru.
Attach a link or part code, and then
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!
WE ONLINE : WRITE A MESSAGE
+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.
→Mechanical Belt Tensioner Arm Straight Bushing Metal (Genuine) Thermo King SL-100e / SL-200e / SL-400e Part 77-2689 / 2C44987H01
The Genuine Straight Metal Bushing for Belt Tensioner Pivot Thermo King 77-2689 (Non-Flanged Support Sleeve / Genuine Heavy-Duty Alignment Journal) is a critical precision mechanical power transmission component. Operating in tandem with the flanged sleeve counterpart, this straight bushing is engineered to handle massive radial stress loads, perfectly centering the automatic belt tensioner swing arm pivot across Yanmar diesel setups on SL-e series trailer units.
Within high-capacity framing layouts like the SL-100e, SL-200e, and SL-400e, the belt tensioning pivot works under brutal continuous vibration parameters. Sudden rotational crankshaft shocks during automated Cycle-Sentry start sequences are transferred directly into the tensioner arm pivot joint. The straight support sleeve 77-2689 is pressed tightly into the tensioner bracket, absorbing these destructive forces and protecting the softer alloy casting of the main arm from wearing out against the mounting bolt. Over thousands of operational hours, exposure to engine heat and mechanical friction gradually expands the inner diameter of the bushing, causing structural ovalization. This wear creates critical radial play (wobble) across the entire tensioner assembly. Consequently, idler pulleys lose strict parallelism with the alternator and water pump tracks, forcing drive belts to run misaligned, screech loudly, and ultimately fray or snap. Proactively replacing both pivot sleeves restores absolute factory geometry, avoiding premature belt failure and catastrophic road breakdowns. This genuine replacement is machined from a hardened anti-friction structural metal alloy, respecting microscopic OEM tolerances.
This replacement mechanical overhaul component is indexed within official factory blueprints as a standalone straight tracking sleeve under primary part catalog index Thermo King 77-2689 (772689, alternative specification 772-689). It serves as a direct technical cross reference for factory blueprint index 2C44987H01, matching original building parameters.
Technical Information:
- Manufacturer: Thermo King (Original OEM Equipment Builder)
- Component Layout: Rigid straight mechanical pivot bushing (without support flange)
- Material Composition: Hardened heavy-duty industrial anti-friction structural metal alloy
- Part Catalog References: Thermo King 77-2689, 772689, 772-689
- OEM Factory Codes: 2C44987H01 standard reference blueprint
- Primary Responsibility: Eliminating radial pivot wobble and securing strict alignment across the tensioner arm joint
Used in Equipment Logistics:
Engineered for exact internal fitment on the tensioner arms of diesel trailer refrigeration systems belonging to the SL-e series group:
SL-e series: SL-100e, SL100e, SL-200e, SL200e, SL-400e, and SL400e platforms (fully compatible with Smart Reefer and Tier 2 engine configurations).
Catalog Number:
Thermo King: 77-2689, 2C44987H01
Delivery and Warranty:
Fast structural shipping layout options across Russia and Belarus regions. 1-month comprehensive operational warranty included. Distributed inside a secure brand packing module to protect the precision-machined journal walls against corrosion and transit friction.
Product Description: Buy genuine mechanical belt tensioner straight bushing (without flange) Thermo King 77-2689 (2C44987H01 alternative) for SL-e series trailer refrigeration units. Restores tensioner arm alignment. Fast shipping.
thermo king 77-2689, buy straight bushing 772689, non-flanged tensioner spacer sl-400e, dynamic sleeve pivot sl, 2C44987H01 straight sleeve, reefer belt drive repair components, trailer refrigeration components
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!
There are no reviews for this product.
