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The WG9720580004 24v/12v Transformer With Four Outputs is a premium, heavy-duty chassis electrical component engineered for SINOTRUK Howo and Hohan N7 series trucks. It steps the truck’s 24V supply down to a stable 12V and distributes power through four individually protected outputs for accessories such as radios, cameras, GPS units and work lights. As a trusted supplier of genuine Sinotruk howo parts, we offer this OEM-grade transformer as a direct replacement for the original factory unit. The WG9720580004 transformer restores clean, reliable low-voltage power on Howo H76/H77 cab bodies and Hohan N7G models.
Manufactured with a sealed converter module, a heat-resistant housing and corrosion-resistant terminals, this four-output transformer is built to exact OEM specifications. Its mounting bracket and plug-and-play connector match the factory chassis harness, so replacement avoids cutting, splicing or adding an external voltage dropper.
OEM WG9720580004 • 24V to 12V step-down • Four protected outputs • Direct OEM fit
This transformer is the voltage step-down module that supplies 12V equipment from the 24V chassis electrical system on SINOTRUK Howo H76 and H77 cab bodies and on the Hohan N7G cab. It is mounted on the chassis or cab bracket and connected into the factory harness, feeding four separate 12V circuits.
The WG9720580004 module combines a sealed converter, a heat-resistant housing and four individually protected outputs in one compact unit. Its mounting bracket and connector layout follow the original factory design, so the unit fits the existing mounting points and plugs straight into the truck wiring.
Common signs that a transformer needs replacement include accessories that stop working one by one, a radio or camera that resets when the engine starts, a 12V output that reads low or fluctuates, a hot or discoloured housing and corrosion or water ingress at the connector.
Fitting the WG9720580004 transformer restores a clean, stable 12V supply to all four outputs, protects sensitive accessories from over-voltage and avoids the unreliable results of improvised dropper resistors or aftermarket converters.
This transformer is designed for SINOTRUK Howo and Hohan trucks, with primary compatibility across the H76/H77 cab body used on HOWO models and the Hohan N7G cab. The WG9720580004 unit is a direct OE replacement that mounts on the factory bracket and plugs into the original harness.
The module matters most on trucks fitted with 12V accessories, such as tippers, mixers, recovery vehicles and long-haul tractor units. In these duties it must deliver a steady supply through vibration, temperature swings, dust and rain while keeping each of the four outputs independent.
Before fitting a new transformer, check the input supply, the chassis earth points and the accessory fuses for faults. A loose earth or blown fuse can mimic a failed module, so confirm the wiring is sound before replacing the WG9720580004 unit.
For fleets running multiple HOWO or Hohan trucks, stocking this transformer means a replacement is always on hand when an accessory circuit fails, which simplifies electrical maintenance and reduces vehicle downtime in daily service.
Replacing a chassis transformer is a straightforward electrical job for a qualified technician. Park the truck on level ground, apply the parking brake and disconnect the battery negative terminal before touching the chassis harness.
Locate the original module, release the connector lock and unplug the harness. Remove the mounting bolts, lift the old unit away and inspect the connector pins and wiring for corrosion, chafing or loose terminals before fitting the replacement.
Mount the new WG9720580004 transformer on the original bracket, plug in the connector until it clicks and reconnect the battery. Test each of the four outputs one by one with the engine running to confirm a steady 12V supply.
During routine service, check the connector for water ingress, confirm the mounting bolts are tight and inspect the housing for heat discolouration. Replace any blown output fuse with the correct rating and keep the module area clean and dry.
This transformer is manufactured in an ISO 9001-certified facility using a sealed converter module, a heat-resistant housing and quality connector hardware. Incoming components are checked for output accuracy, insulation and surface quality before assembly.
Each WG9720580004 unit is tested for input and output voltage, load response on all four channels, short-circuit protection and connector fit. Every batch is checked against the OEM specification, and samples are bench-tested under load.
Batch samples also undergo vibration, humidity and temperature cycle testing to confirm long-term reliability in heavy-duty truck use. These checks help ensure the module withstands constant electrical load and the harsh conditions Howo and Hohan trucks face every day.
The WG9720580004 transformer is covered by a 12-month warranty against material and workmanship defects. Strict quality control means every unit matches the fit, function and durability of the original factory part.
A failing voltage converter is more than an inconvenience. It can leave the radio, reversing camera or GPS unit dead, cause accessories to reset when the engine cranks and damage sensitive electronics through unstable output. Improvised fixes rarely last.
The WG9720580004 replacement solves the problem at the source. The sealed converter and heat-resistant housing restore a stable 12V supply, while four protected outputs keep each accessory circuit independent and easy to diagnose.
Fleet operators benefit from fewer electrical faults, lower maintenance costs and reliable accessory power across the fleet. Owner-operators gain confidence from a part that meets strict OEM standards and is backed by a 12-month warranty.
Order the WG9720580004 24v/12v Transformer With Four Outputs today and restore clean, dependable accessory power on your SINOTRUK Howo or Hohan truck.
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