Thermo King Trailer Alternator-to-Water-Pump Belt 780929
Official OEM Thermo King parts catalog entry for the Thermo King Belt, Alternator (Trailer) 780929, verified by PEAK Thermo King and West Texas Thermo King Texas, Utah, Wyoming, Washington, Oregon, serving all of the USA.
Built for Performance: The Thermo King Belt, Alternator (Trailer) 780929 delivers OEM-grade drive reliability for transport refrigeration fleets. This alternator-to-water-pump drive belt supports consistent coolant circulation and dependable temperature control on trailer refrigeration units, reducing downtime and protecting perishable cargo.
Thermo King refrigeration system operators depend on precise power transmission between the alternator and water pump. The 780929 belt ensures smooth operation on high-mount alternator Thermo King SB series units and is engineered for the rugged demands of West Texas and the Permian Basin.
- Alternator-to-Water-Pump Design – Enables consistent coolant flow and reliable thermal regulation for reefer trailers and transport refrigeration systems.
- OEM Chloroprene Construction – Offers heat and stretch resistance for long service life across wide operating conditions.
- Industrial Cogged Profile – Improves grip and reduces slippage to maintain efficient power transfer and preserve belt life.
- Wide Temperature Tolerance – Performs in extreme ambient conditions encountered in Amarillo, Lubbock, Odessa, and the Permian Basin.
- Direct Fit for SB Series – Designed for high-mount alternator configurations on Thermo King SB-II, SB-II Max, SB-III, and SB 100/190 (Isuzu 2.2) units for accurate, secure installation.
- Durability Under Vibration – Withstands transport vibration and frequent duty cycles to support fleet uptime and lower lifecycle costs.
Product Details
| Part Number | 780929 |
| Product Name | Thermo King Belt, Alternator (Trailer) 780929 |
| Material | Chloroprene rubber, industrial cogged design |
| Function | Drive belt transferring power from alternator to water pump |
| Compatibility | Thermo King SB-II, SB-II Max (30 & 50), SB-III (30), SB 100/190 with Isuzu 2.2; high-mount alternator models |
| Operating Range | Engineered for extreme temperatures and heavy-duty reefer use |
Efficiency & Sustainability
This belt supports fuel-efficient cooling and consistent temperature control by maintaining reliable drive transfer and reducing slippage losses. Integration with modern monitoring systems such as Smart Reefer SR-4 enhances fleet diagnostics and helps preserve compressor and engine efficiency. Properly maintained drive components contribute to lower fuel use and reduced emissions across transport refrigeration operations.
Installation & Maintenance Tips
Inspect the Thermo King 780929 belt during scheduled service intervals and replace at the first sign of cracking, glazing, or abnormal wear. Use manufacturer-recommended tensioning and OEM pulleys for secure fitment. Certified technicians at West Texas Thermo King perform professional installation and tension checks to ensure optimal belt life and consistent temperature control.
Real-World Applications
The Thermo King Belt, Alternator 780929 serves reefer trailers, refrigerated trucks, and other transport refrigeration platforms that require reliable alternator-to-water-pump drive solutions. It supports cold-chain operations for food, pharmaceuticals, and temperature-sensitive freight across long-haul and regional routes. Available for installation and service in Amarillo, Lubbock, Odessa, and throughout West Texas.
Customer Assurance
Backed by Thermo King engineering and supported by certified technicians at West Texas Thermo King, this component delivers lasting reliability and uptime assurance for fleet operations.
For product verification or service assistance, call (806) 376-5837.
Check Parts Warranty
For current warranty eligibility or OEM replacement coverage, contact us for warranty information or contact the service department directly at https://www.trailerservicesofwesttexas.com/contact.
Frequently Asked Questions
Q: Is this belt compatible with Thermo King SB-II units?
A: Yes. The 780929 belt fits high-mount alternator SB-II and SB-II Max configurations and ensures correct power transfer for the cooling system.
Q: Can this belt be installed during routine preventive maintenance?
A: Yes. Certified technicians perform belt inspection and replacement during scheduled service intervals to preserve temperature control and reduce unplanned downtime.
Q: How does this belt affect fleet reliability?
A: Reliable alternator-to-water-pump drive reduces overheating risk and supports continuous refrigeration operation, improving uptime and return on investment for fleet managers.
Q: Is this part suitable for units with Isuzu 2.2 engines?
A: Yes. Compatibility includes Thermo King SB 100/190 models equipped with Isuzu 2.2 engines where a high-mount alternator configuration is used.
Ask about fleet-wide parts programs through West Texas Thermo King.
Produced by a certified Thermo King dealership, West Texas Thermo King | a Division of PEAK Industrial. Servicing fleets across Amarillo, Lubbock, and Odessa.
Official OEM Thermo King parts catalog entry for the Thermo King Belt, Alternator (Trailer) 780929, verified by PEAK Thermo King and West Texas Thermo King Texas, Utah, Wyoming, Washington, Oregon, serving all of the USA.
Built for Performance: The Thermo King Belt, Alternator (Trailer) 780929 delivers OEM-grade drive reliability for transport refrigeration fleets. This alternator-to-water-pump drive belt supports consistent coolant circulation and dependable temperature control on trailer refrigeration units, reducing downtime and protecting perishable cargo.
Thermo King refrigeration system operators depend on precise power transmission between the alternator and water pump. The 780929 belt ensures smooth operation on high-mount alternator Thermo King SB series units and is engineered for the rugged demands of West Texas and the Permian Basin.
- Alternator-to-Water-Pump Design – Enables consistent coolant flow and reliable thermal regulation for reefer trailers and transport refrigeration systems.
- OEM Chloroprene Construction – Offers heat and stretch resistance for long service life across wide operating conditions.
- Industrial Cogged Profile – Improves grip and reduces slippage to maintain efficient power transfer and preserve belt life.
- Wide Temperature Tolerance – Performs in extreme ambient conditions encountered in Amarillo, Lubbock, Odessa, and the Permian Basin.
- Direct Fit for SB Series – Designed for high-mount alternator configurations on Thermo King SB-II, SB-II Max, SB-III, and SB 100/190 (Isuzu 2.2) units for accurate, secure installation.
- Durability Under Vibration – Withstands transport vibration and frequent duty cycles to support fleet uptime and lower lifecycle costs.
Product Details
| Part Number | 780929 |
| Product Name | Thermo King Belt, Alternator (Trailer) 780929 |
| Material | Chloroprene rubber, industrial cogged design |
| Function | Drive belt transferring power from alternator to water pump |
| Compatibility | Thermo King SB-II, SB-II Max (30 & 50), SB-III (30), SB 100/190 with Isuzu 2.2; high-mount alternator models |
| Operating Range | Engineered for extreme temperatures and heavy-duty reefer use |
Efficiency & Sustainability
This belt supports fuel-efficient cooling and consistent temperature control by maintaining reliable drive transfer and reducing slippage losses. Integration with modern monitoring systems such as Smart Reefer SR-4 enhances fleet diagnostics and helps preserve compressor and engine efficiency. Properly maintained drive components contribute to lower fuel use and reduced emissions across transport refrigeration operations.
Installation & Maintenance Tips
Inspect the Thermo King 780929 belt during scheduled service intervals and replace at the first sign of cracking, glazing, or abnormal wear. Use manufacturer-recommended tensioning and OEM pulleys for secure fitment. Certified technicians at West Texas Thermo King perform professional installation and tension checks to ensure optimal belt life and consistent temperature control.
Real-World Applications
The Thermo King Belt, Alternator 780929 serves reefer trailers, refrigerated trucks, and other transport refrigeration platforms that require reliable alternator-to-water-pump drive solutions. It supports cold-chain operations for food, pharmaceuticals, and temperature-sensitive freight across long-haul and regional routes. Available for installation and service in Amarillo, Lubbock, Odessa, and throughout West Texas.
Customer Assurance
Backed by Thermo King engineering and supported by certified technicians at West Texas Thermo King, this component delivers lasting reliability and uptime assurance for fleet operations.
For product verification or service assistance, call (806) 376-5837.
Check Parts Warranty
For current warranty eligibility or OEM replacement coverage, contact us for warranty information or contact the service department directly at https://www.trailerservicesofwesttexas.com/contact.
Frequently Asked Questions
Q: Is this belt compatible with Thermo King SB-II units?
A: Yes. The 780929 belt fits high-mount alternator SB-II and SB-II Max configurations and ensures correct power transfer for the cooling system.
Q: Can this belt be installed during routine preventive maintenance?
A: Yes. Certified technicians perform belt inspection and replacement during scheduled service intervals to preserve temperature control and reduce unplanned downtime.
Q: How does this belt affect fleet reliability?
A: Reliable alternator-to-water-pump drive reduces overheating risk and supports continuous refrigeration operation, improving uptime and return on investment for fleet managers.
Q: Is this part suitable for units with Isuzu 2.2 engines?
A: Yes. Compatibility includes Thermo King SB 100/190 models equipped with Isuzu 2.2 engines where a high-mount alternator configuration is used.
Ask about fleet-wide parts programs through West Texas Thermo King.
Produced by a certified Thermo King dealership, West Texas Thermo King | a Division of PEAK Industrial. Servicing fleets across Amarillo, Lubbock, and Odessa.