Thermo King Wiring Kit 20A Boost Charger 40' 401335
Official OEM Thermo King parts catalog entry for the Kit, Wiring 20A Boost Charger 40' 401335, 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 refrigeration system support Kit, Wiring 20A Boost Charger 40' 401335 supplies a factory-grade wiring solution that ensures liftgate batteries remain charged and ready across transport refrigeration operations. Engineered for fleets and certified by West Texas Thermo King, this harness kit pulls auxiliary power through standard 7‑way circuits to support reliable temperature control and consistent uptime.
Key Features & Customer Benefits
- 20 Amp Charging Output – Delivers a robust charge rate to maintain liftgate batteries and reduce downtime for refrigerated trailers and reefer trailer operations.
- 40' Wiring Harness – Provides installation flexibility on trailers and trucks serving regional routes across Amarillo, Lubbock, Odessa, and the Permian Basin.
- Wide Input Range – Accepts 9.5–16 Vdc input to integrate with standard truck electrical systems and Smart Reefer SR-4 or Precedent-series power sources.
- IP67 / IP69K Environmental Rating – Sealed design resists road spray and high-pressure washdown for dependable service in harsh West Texas conditions.
- Anodized Aluminum Housing – Corrosion-resistant construction supports long-term reliability and temperature control system integrity.
- Simple Integration – Designed to connect to trailer 7‑way auxiliary circuits and optimized for transport refrigeration applications and liftgate battery support.
- 2‑Year Warranty – Backed by Thermo King engineering and West Texas Thermo King service for fleet peace of mind.
Product Details
| Part Number | 401335 |
| Product Name | Kit, Wiring 20A Boost Charger 40' |
| Output Current | 20 Amps |
| Input Voltage | 9.5–16 Vdc |
| Environmental Rating | IP67, IP69K sealed |
| Housing | Anodized aluminum |
| Operating Temperature | -40°C to 85°C (-40°F to 185°F) |
| Wiring Length | 40 feet |
| Warranty | 2 years unconditional |
Efficiency & Sustainability
This Thermo King wiring kit supports efficient battery maintenance that extends battery life and reduces the frequency of replacements, improving total cost of ownership for transport refrigeration fleets. Compatible with modern Thermo King platforms such as Smart Reefer SR-4 and Precedent S-610M/S-610DE, the kit supports fuel-efficient cooling and dependable temperature control strategies that align with CARB Evergreen and fleet sustainability goals.
Installation & Maintenance Tips
Install the 40' harness using the trailer 7‑way auxiliary circuit rated for 30 Amps and secure all terminations with OEM connectors. Inspect connections during scheduled maintenance intervals and use OEM clamps and sealing practices to preserve IP67/IP69K protection. Certified technicians at West Texas Thermo King provide installation support and diagnostics.
Real-World Applications
This wiring kit installs on refrigerated trucks and reefer trailers to maintain liftgate battery health, support door-operating systems, and reduce operational interruptions in regional transport runs. Fleets in temperature-sensitive industries use this kit to protect cargo integrity and maximize uptime across Amarillo, Lubbock, Odessa, and West Texas routes.
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 our service department for confirmation.
Frequently Asked Questions
Q: Is this wiring kit compatible with Thermo King Precedent units?
A: Yes. The harness integrates with common Thermo King power architectures found on Precedent-series systems and supports liftgate battery charging on reefer trailers.
Q: Where does this kit connect on the trailer?
A: Install the harness to the trailer 7‑way auxiliary circuit, ensuring the auxiliary circuit is rated according to Thermo King installation guidance for safe power draw.
Q: How does this kit improve fleet uptime?
A: By maintaining liftgate and accessory batteries at optimal charge, the kit reduces failures and service interruptions, improving operational reliability for temperature-controlled freight.
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 Kit, Wiring 20A Boost Charger 40' 401335, 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 refrigeration system support Kit, Wiring 20A Boost Charger 40' 401335 supplies a factory-grade wiring solution that ensures liftgate batteries remain charged and ready across transport refrigeration operations. Engineered for fleets and certified by West Texas Thermo King, this harness kit pulls auxiliary power through standard 7‑way circuits to support reliable temperature control and consistent uptime.
Key Features & Customer Benefits
- 20 Amp Charging Output – Delivers a robust charge rate to maintain liftgate batteries and reduce downtime for refrigerated trailers and reefer trailer operations.
- 40' Wiring Harness – Provides installation flexibility on trailers and trucks serving regional routes across Amarillo, Lubbock, Odessa, and the Permian Basin.
- Wide Input Range – Accepts 9.5–16 Vdc input to integrate with standard truck electrical systems and Smart Reefer SR-4 or Precedent-series power sources.
- IP67 / IP69K Environmental Rating – Sealed design resists road spray and high-pressure washdown for dependable service in harsh West Texas conditions.
- Anodized Aluminum Housing – Corrosion-resistant construction supports long-term reliability and temperature control system integrity.
- Simple Integration – Designed to connect to trailer 7‑way auxiliary circuits and optimized for transport refrigeration applications and liftgate battery support.
- 2‑Year Warranty – Backed by Thermo King engineering and West Texas Thermo King service for fleet peace of mind.
Product Details
| Part Number | 401335 |
| Product Name | Kit, Wiring 20A Boost Charger 40' |
| Output Current | 20 Amps |
| Input Voltage | 9.5–16 Vdc |
| Environmental Rating | IP67, IP69K sealed |
| Housing | Anodized aluminum |
| Operating Temperature | -40°C to 85°C (-40°F to 185°F) |
| Wiring Length | 40 feet |
| Warranty | 2 years unconditional |
Efficiency & Sustainability
This Thermo King wiring kit supports efficient battery maintenance that extends battery life and reduces the frequency of replacements, improving total cost of ownership for transport refrigeration fleets. Compatible with modern Thermo King platforms such as Smart Reefer SR-4 and Precedent S-610M/S-610DE, the kit supports fuel-efficient cooling and dependable temperature control strategies that align with CARB Evergreen and fleet sustainability goals.
Installation & Maintenance Tips
Install the 40' harness using the trailer 7‑way auxiliary circuit rated for 30 Amps and secure all terminations with OEM connectors. Inspect connections during scheduled maintenance intervals and use OEM clamps and sealing practices to preserve IP67/IP69K protection. Certified technicians at West Texas Thermo King provide installation support and diagnostics.
Real-World Applications
This wiring kit installs on refrigerated trucks and reefer trailers to maintain liftgate battery health, support door-operating systems, and reduce operational interruptions in regional transport runs. Fleets in temperature-sensitive industries use this kit to protect cargo integrity and maximize uptime across Amarillo, Lubbock, Odessa, and West Texas routes.
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 our service department for confirmation.
Frequently Asked Questions
Q: Is this wiring kit compatible with Thermo King Precedent units?
A: Yes. The harness integrates with common Thermo King power architectures found on Precedent-series systems and supports liftgate battery charging on reefer trailers.
Q: Where does this kit connect on the trailer?
A: Install the harness to the trailer 7‑way auxiliary circuit, ensuring the auxiliary circuit is rated according to Thermo King installation guidance for safe power draw.
Q: How does this kit improve fleet uptime?
A: By maintaining liftgate and accessory batteries at optimal charge, the kit reduces failures and service interruptions, improving operational reliability for temperature-controlled freight.
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.
