Thermo King 12V OSGR Starter 2.0 kW CW P-25-39291-00-B
Official OEM Thermo King parts catalog entry for the Thermo King Starter P-25-39291-00-B, 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 Starter P-25-39291-00-B powers reliable cold-chain starts and supports consistent temperature control across transport refrigeration operations. This starter integrates into Thermo King refrigeration systems to help fleets maintain uptime and protect temperature-sensitive loads.
Key Features & Customer Benefits
- 12-Volt Design – Matches common TRU electrical systems for straightforward installation and dependable starting power.
- 2.0 kW Output – Delivers robust cranking capability to start diesel and electric-driven Thermo King refrigeration units under load.
- Offset Gear Reduction (OSGR) – Provides efficient torque multiplication and smooth engagement for long-term reliability.
- 9-Tooth Pinion – Ensures precise engagement with flywheel assemblies, supporting repeatable starts in demanding conditions.
- CW Rotation – Matches common Thermo King starter requirements for correct rotational direction and system compatibility.
- Durable Construction – Engineered to withstand transport vibration, temperature cycles, and fleet duty for extended service life.
- Certified Support – Backed by West Texas Thermo King certified technicians for parts verification and service across West Texas.
Product Details
| Part Number | Starter P-25-39291-00-B |
| Dealer Reference | rem3504602 |
| Voltage | 12 V |
| Power | 2.0 kW |
| Pinion Teeth | 9 |
| Rotation | Clockwise (CW) |
| Type | Offset Gear Reduction (OSGR) |
| Mounting | 2-hole, unthreaded |
| Gear Outside Diameter | 1.1315 in (28.7401 mm) |
| Weight | 13.25 lbs (approx.) |
Efficiency & Sustainability
This starter supports fuel-efficient cooling strategies by delivering reliable starts that reduce repeated cranking and downtime. It aligns with Thermo King system goals for temperature control and operates within configurations that include Smart Reefer SR-4 telematics and Diesel Direct Electric systems when installed in approved Thermo King refrigeration units. Reliable starts contribute to reduced fuel consumption and lower emissions across fleet operations.
Installation & Maintenance Tips
Use OEM-quality mounting hardware and corrosion-resistant electrical connections. Inspect starter terminals, cable harnesses, and mounting points during scheduled maintenance intervals. Verify system voltage before installation and torque mounting fasteners to Thermo King specifications. Replace worn flywheel or ring gear components to ensure correct pinion engagement and minimize starter wear.
Real-World Applications
The Thermo King Starter P-25-39291-00-B suits reefer trailers, truck-mounted transport refrigeration units, and other Thermo King temperature-control applications that require a durable 12 V starter with offset gear reduction. Fleet operators across Amarillo, Lubbock, Odessa, and the Permian Basin rely on this component to keep loads refrigerated and deliveries on schedule.
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, please contact us for warranty information or contact the service department for confirmation.
Frequently Asked Questions
Q: Is this starter compatible with Thermo King transport refrigeration units?
A: Yes. The starter is engineered for Thermo King refrigeration applications that require a 12 V offset gear reduction starter with 9-tooth pinion and clockwise rotation. Confirm fitment with certified parts personnel for specific unit models.
Q: What maintenance extends starter life?
A: Regular inspection of electrical connections, secure mounting, and flywheel gear condition extends starter life. Follow scheduled maintenance intervals and service guidelines provided by West Texas Thermo King technicians.
Q: Can this starter support telematics and Smart Reefer controls?
A: Yes. When installed in approved configurations, the starter supports Thermo King systems that include Smart Reefer SR-4 telematics and related control systems.
Related Resources
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 Starter P-25-39291-00-B, 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 Starter P-25-39291-00-B powers reliable cold-chain starts and supports consistent temperature control across transport refrigeration operations. This starter integrates into Thermo King refrigeration systems to help fleets maintain uptime and protect temperature-sensitive loads.
Key Features & Customer Benefits
- 12-Volt Design – Matches common TRU electrical systems for straightforward installation and dependable starting power.
- 2.0 kW Output – Delivers robust cranking capability to start diesel and electric-driven Thermo King refrigeration units under load.
- Offset Gear Reduction (OSGR) – Provides efficient torque multiplication and smooth engagement for long-term reliability.
- 9-Tooth Pinion – Ensures precise engagement with flywheel assemblies, supporting repeatable starts in demanding conditions.
- CW Rotation – Matches common Thermo King starter requirements for correct rotational direction and system compatibility.
- Durable Construction – Engineered to withstand transport vibration, temperature cycles, and fleet duty for extended service life.
- Certified Support – Backed by West Texas Thermo King certified technicians for parts verification and service across West Texas.
Product Details
| Part Number | Starter P-25-39291-00-B |
| Dealer Reference | rem3504602 |
| Voltage | 12 V |
| Power | 2.0 kW |
| Pinion Teeth | 9 |
| Rotation | Clockwise (CW) |
| Type | Offset Gear Reduction (OSGR) |
| Mounting | 2-hole, unthreaded |
| Gear Outside Diameter | 1.1315 in (28.7401 mm) |
| Weight | 13.25 lbs (approx.) |
Efficiency & Sustainability
This starter supports fuel-efficient cooling strategies by delivering reliable starts that reduce repeated cranking and downtime. It aligns with Thermo King system goals for temperature control and operates within configurations that include Smart Reefer SR-4 telematics and Diesel Direct Electric systems when installed in approved Thermo King refrigeration units. Reliable starts contribute to reduced fuel consumption and lower emissions across fleet operations.
Installation & Maintenance Tips
Use OEM-quality mounting hardware and corrosion-resistant electrical connections. Inspect starter terminals, cable harnesses, and mounting points during scheduled maintenance intervals. Verify system voltage before installation and torque mounting fasteners to Thermo King specifications. Replace worn flywheel or ring gear components to ensure correct pinion engagement and minimize starter wear.
Real-World Applications
The Thermo King Starter P-25-39291-00-B suits reefer trailers, truck-mounted transport refrigeration units, and other Thermo King temperature-control applications that require a durable 12 V starter with offset gear reduction. Fleet operators across Amarillo, Lubbock, Odessa, and the Permian Basin rely on this component to keep loads refrigerated and deliveries on schedule.
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, please contact us for warranty information or contact the service department for confirmation.
Frequently Asked Questions
Q: Is this starter compatible with Thermo King transport refrigeration units?
A: Yes. The starter is engineered for Thermo King refrigeration applications that require a 12 V offset gear reduction starter with 9-tooth pinion and clockwise rotation. Confirm fitment with certified parts personnel for specific unit models.
Q: What maintenance extends starter life?
A: Regular inspection of electrical connections, secure mounting, and flywheel gear condition extends starter life. Follow scheduled maintenance intervals and service guidelines provided by West Texas Thermo King technicians.
Q: Can this starter support telematics and Smart Reefer controls?
A: Yes. When installed in approved configurations, the starter supports Thermo King systems that include Smart Reefer SR-4 telematics and related control systems.
Related Resources
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.
