Thermo King Transport Refrigeration Drive Belt 781856
Official OEM Thermo King parts catalog entry for the Thermo King Belt 781856, verified by PEAK Thermo King and West Texas Thermo King Texas, Utah, Wyoming, Washington, Oregon, serving all of the USA.
Built for Dependability: The Thermo King Belt 781856 provides OEM-grade drive reliability for temperature-controlled fleets, ensuring consistent power transmission for battery charging and coolant pump drive in Thermo King transport refrigeration systems. This genuine Thermo King component supports uptime and predictable service intervals across demanding reefer operations.
Thermo King refrigeration system compatibility and proven durability make this belt a core maintenance item for fleets running Precedent-series and Smart Power-equipped units.
- OEM Fit – Designed specifically for Thermo King applications to ensure secure installation and exact alignment with drive pulleys.
- Durable Construction – Engineered with oil- and abrasion-resistant top fabric to extend service life under heavy-duty, transport refrigeration conditions.
- Stable Tension – Advanced tensile cord construction minimizes stretch and maintains reliable power transfer for battery charging and coolant pump operation.
- Temperature Resilience – Built to perform across wide ambient ranges typical of long-haul refrigerated transport in West Texas and the Permian Basin.
- Fleet Uptime – Reduces unplanned downtime risk, protecting cargo integrity and fleet ROI through consistent, predictable operation.
- Certified Component – Supplied to Thermo King specifications and supported by certified technicians at West Texas Thermo King.
Product Details
| Part Number | 781856 |
| Product Name | Thermo King Belt 781856 |
| Compatibility | Precedent S-700, Precedent S-700 SmartPower, Precedent G-700 (Smart Power/Battery Charger and Coolant Pump applications) |
| Application | Transport refrigeration drive belt for battery charging and coolant pump drive |
| Brand | Thermo King (OEM) |
Thermo King parts follow rigorous OEM standards. The Belt 781856 supports critical subsystems within Thermo King Precedent platforms and aligns with certified maintenance practices for temperature control and fuel-efficient cooling strategies.
Efficiency & Sustainability
This belt contributes to fuel-efficient cooling and reduced operating cost by maintaining correct drive tension and minimizing slippage. It supports fleet compliance and monitoring initiatives tied to Thermo King telematics and efficiency programs such as Smart Reefer SR-4 and regional emissions efforts including CARB Evergreen-related fleet planning.
Installation & Maintenance Tips
Install with OEM-recommended tensioning procedures and use Thermo King–specified clamps or pulleys where applicable. Inspect belt condition during scheduled service intervals and replace at the first sign of cracking, glazing, or significant wear to protect battery charging and coolant circulation performance.
Real-World Applications
The Thermo King Belt 781856 is ideal for reefer trailers and refrigerated trucks operating in regional and long-haul transport refrigeration. It performs in Smart Power and Diesel Direct Electric configurations, serving carriers that require consistent temperature control for perishables and pharmaceuticals.
Available for installation and service in Amarillo, Lubbock, Odessa, and throughout West Texas.
Backed by Thermo King’s engineering and supported by certified technicians at West Texas Thermo King, this component delivers lasting performance and uptime assurance for fleet operations.
For product verification or service assistance, call (806) 376-5837.
For current warranty eligibility or OEM replacement coverage, contact us for warranty information.
Frequently Asked Questions
Q: Is the Thermo King Belt 781856 compatible with Precedent-series units?
A: Yes. It is specified for Precedent S-700, Precedent S-700 SmartPower, and Precedent G-700 applications where it supports Smart Power battery charging and coolant pump drive.
Q: How often should the belt be inspected or replaced?
A: Inspect belts during scheduled maintenance intervals and replace when wear, cracking, or loss of tension appears to maintain reliable temperature control and avoid cargo risk.
Q: Can this belt affect fuel efficiency?
A: Yes. A properly functioning belt preserves accessory drive efficiency, supporting fuel-efficient cooling and consistent system performance across transport refrigeration cycles.
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 781856, verified by PEAK Thermo King and West Texas Thermo King Texas, Utah, Wyoming, Washington, Oregon, serving all of the USA.
Built for Dependability: The Thermo King Belt 781856 provides OEM-grade drive reliability for temperature-controlled fleets, ensuring consistent power transmission for battery charging and coolant pump drive in Thermo King transport refrigeration systems. This genuine Thermo King component supports uptime and predictable service intervals across demanding reefer operations.
Thermo King refrigeration system compatibility and proven durability make this belt a core maintenance item for fleets running Precedent-series and Smart Power-equipped units.
- OEM Fit – Designed specifically for Thermo King applications to ensure secure installation and exact alignment with drive pulleys.
- Durable Construction – Engineered with oil- and abrasion-resistant top fabric to extend service life under heavy-duty, transport refrigeration conditions.
- Stable Tension – Advanced tensile cord construction minimizes stretch and maintains reliable power transfer for battery charging and coolant pump operation.
- Temperature Resilience – Built to perform across wide ambient ranges typical of long-haul refrigerated transport in West Texas and the Permian Basin.
- Fleet Uptime – Reduces unplanned downtime risk, protecting cargo integrity and fleet ROI through consistent, predictable operation.
- Certified Component – Supplied to Thermo King specifications and supported by certified technicians at West Texas Thermo King.
Product Details
| Part Number | 781856 |
| Product Name | Thermo King Belt 781856 |
| Compatibility | Precedent S-700, Precedent S-700 SmartPower, Precedent G-700 (Smart Power/Battery Charger and Coolant Pump applications) |
| Application | Transport refrigeration drive belt for battery charging and coolant pump drive |
| Brand | Thermo King (OEM) |
Thermo King parts follow rigorous OEM standards. The Belt 781856 supports critical subsystems within Thermo King Precedent platforms and aligns with certified maintenance practices for temperature control and fuel-efficient cooling strategies.
Efficiency & Sustainability
This belt contributes to fuel-efficient cooling and reduced operating cost by maintaining correct drive tension and minimizing slippage. It supports fleet compliance and monitoring initiatives tied to Thermo King telematics and efficiency programs such as Smart Reefer SR-4 and regional emissions efforts including CARB Evergreen-related fleet planning.
Installation & Maintenance Tips
Install with OEM-recommended tensioning procedures and use Thermo King–specified clamps or pulleys where applicable. Inspect belt condition during scheduled service intervals and replace at the first sign of cracking, glazing, or significant wear to protect battery charging and coolant circulation performance.
Real-World Applications
The Thermo King Belt 781856 is ideal for reefer trailers and refrigerated trucks operating in regional and long-haul transport refrigeration. It performs in Smart Power and Diesel Direct Electric configurations, serving carriers that require consistent temperature control for perishables and pharmaceuticals.
Available for installation and service in Amarillo, Lubbock, Odessa, and throughout West Texas.
Backed by Thermo King’s engineering and supported by certified technicians at West Texas Thermo King, this component delivers lasting performance and uptime assurance for fleet operations.
For product verification or service assistance, call (806) 376-5837.
For current warranty eligibility or OEM replacement coverage, contact us for warranty information.
Frequently Asked Questions
Q: Is the Thermo King Belt 781856 compatible with Precedent-series units?
A: Yes. It is specified for Precedent S-700, Precedent S-700 SmartPower, and Precedent G-700 applications where it supports Smart Power battery charging and coolant pump drive.
Q: How often should the belt be inspected or replaced?
A: Inspect belts during scheduled maintenance intervals and replace when wear, cracking, or loss of tension appears to maintain reliable temperature control and avoid cargo risk.
Q: Can this belt affect fuel efficiency?
A: Yes. A properly functioning belt preserves accessory drive efficiency, supporting fuel-efficient cooling and consistent system performance across transport refrigeration cycles.
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.