The rear lower protective device is an essential safety component for any commercial tractor. For the HOWO MAX 4X2, this device prevents smaller vehicles from sliding under the truck during a rear end collision. A robust rear lower protective device absorbs impact energy and protects lives. This genuine HOWO rear lower protective device meets international safety standards, providing reliable protection for Nigerian and African logistics fleets. When you choose authentic Howo Parts, every element of the rear lower protective device performs as engineered from factory.
The rear lower protective device assembly includes the ABS / EBS Spiral wiring harness assembly. This harness is integrated into the protective structure to provide electrical connectivity for rear lights, brake signals, and trailer ABS systems. The spiral design allows the cable to extend and retract without breaking, ideal for the articulation between tractor and trailer. This wiring harness is made with high grade copper conductors and a flexible outer sheath that resists abrasion from road debris.
It connects the vehicle electronic braking system to the rear lights and sensors, ensuring reliable operation even on rough terrain. The harness is sealed against moisture and dust, maintaining signal integrity for years of heavy service. Fleet operators appreciate the durability of this component under continuous flexing cycles.
Another essential component within the rear lower protective device mounting system is the hexagon bolt with flange M8. These bolts are used to attach the protective beam and associated brackets to the truck chassis frame. The integrated flange distributes clamping force evenly, eliminating the need for separate washers. Each M8 bolt is manufactured from high strength steel with a zinc flake coating that resists corrosion. The hexagon head allows for easy torque application using standard tools.
For the HOWO MAX 4X2, these bolts are torqued to precise specifications to maintain the rear lower protective device position during dynamic driving conditions. The flange design also protects painted surfaces from damage. These bolts are reusable for several maintenance cycles.
The hex flange nut M8 completes the fastening solution for the rear lower protective device. This nut features a wide integrated flange that provides a stable bearing surface without extra hardware. The M8 thread size matches the hexagon bolt perfectly, and the nut includes a non metallic locking patch that prevents loosening from vibration. When installed together with the hexagon bolt with flange M8, the nut creates a secure, maintenance free joint that holds the rear lower protective device firmly to the chassis.
This locking feature is critical for safety components, as any loosening could reduce the effectiveness of the protective structure during an impact. The hex flange nut M8 is also reusable for multiple service cycles, and its locking patch maintains prevailing torque even after repeated assembly.
All these precision parts form a complete rear lower protective device system. The ABS/EBS spiral wiring harness ensures that the rear lights and braking system remain operational, while the M8 bolts and nuts provide structural integrity. Fleet owners and workshop managers can rely on genuine HOWO components for perfect fitment and long term reliability. The rear lower protective device is not just a legal requirement in many countries; it is a life saving feature that reduces accident severity.
For trucks operating in dense urban traffic or on highways, a well maintained rear lower protective device is indispensable. This genuine assembly eliminates guesswork and ensures compliance with safety regulations across West Africa.
Rear lower protective device – HOWO MAX 4X2 genuine underride guard assembly
| Material Encoding | Name |
|---|---|
| WG9718770052 | ABS / EBS Spiral wiring harness assembly |
| ZQ1840825 | Hexagon bolt with flange M8 |
| ZQ32008 | Hex flange nut M8 |
Our rear lower protective device is constructed from high tensile steel that meets ECE R58 and FMVSS 223 standards. The structural beam absorbs impact energy without brittle fracture, preventing underride and protecting following vehicles. This safety guard is tested to withstand a load of 100 kN without permanent deformation.
The hexagon bolt with flange M8 and hex flange nut M8 provide a vibration proof connection. The locking patch on the nut prevents loosening even on unpaved roads. All fasteners are grade 10.9 for maximum clamp load retention and long service life without retorquing.
The included spiral wiring harness assembly maintains full electrical functionality for rear lamps, license plate lights, and trailer ABS power. The spiral design allows flexing between tractor and trailer, eliminating wire fatigue failures. The harness is IP67 sealed against water and dust.
The entire rear lower protective device and its fasteners undergo e coat and powder topcoat processing. This dual layer protection resists salt spray, humidity, and road chemicals for over 600 hours. The finish retains appearance and structural integrity in coastal or winter salt environments.
The rear lower protective device for the HOWO MAX 4X2 is computer optimized using finite element analysis. The cross section of the main beam is engineered to distribute impact forces across the chassis frame rails. The mounting brackets are welded with robotic precision to guarantee consistent geometry. This design ensures that the device complies with global regulations while minimizing added weight. The protective device also incorporates rubber buffers to reduce vibration transmission to the chassis.
This rear lower protective device is specifically designed for the HOWO MAX 4X2 tractor model. It aligns with existing mounting holes on the rear cross member and uses factory specified fasteners. No drilling or modification is required for installation. The device also accommodates the standard rear lighting harness and mud flap mounting points. For fleet owners with multiple HOWO units, standardizing on this genuine part simplifies inventory and replacement procedures.
Start by removing the old protective device and cleaning the chassis mounting surfaces. Position the new rear lower protective device and hand tighten the M8 bolts with flanges. Do not fully torque until all bolts are in place. Use a torque wrench set to 25 Nm for the hexagon bolt with flange M8 and hex flange nut M8 combination. After securing, route the ABS/EBS spiral wiring harness along the rear cross member, using cable ties every 150 mm. Connect the harness to the vehicle lighting and ABS connectors. Finally, test all rear lights and ABS communication before returning the truck to service.
Inspect the rear lower protective device every 20,000 km or during routine servicing. Look for bent beams, cracked welds, or loose fasteners. Check the spiral harness for chafing or cuts. If any M8 bolt or nut shows rust or damage, replace with genuine parts immediately. Keep the device surface clean from mud and road salt to prevent accelerated corrosion. A well maintained rear lower protective device will last the entire life of the tractor with no replacement needed unless damaged in an accident.
In Nigeria and many African countries, vehicles exceeding certain GVWR must be equipped with a functional rear underride guard. The HOWO genuine rear lower protective device meets the requirements of the Nigerian Road Traffic Act and ECOWAS vehicle safety directives. It also complies with international standards such as UN ECE R58, making it suitable for cross border transport between West African nations. Using a certified device helps avoid fines and improves road safety for all users.
Aftermarket rear lower protective devices often use thinner gauge steel and lower grade bolts. These copies may fail during a collision or corrode rapidly. The genuine HOWO device uses certified steel grades and the exact M8 fasteners (ZQ1840825 and ZQ32008) that have been tested to withstand vibration and environmental stress. The ABS/EBS spiral wiring harness from aftermarket sources may lack proper shielding, causing electrical faults. Investing in genuine HOWO parts reduces liability and ensures the safety of your drivers and the public.
The rear lower protective device has been tested on HOWO MAX 4X2 trucks operating in Nigeria, Ghana, and Kenya. Drivers report that the device withstands frequent pothole impacts, road debris strikes, and severe weather. The corrosion resistant finish lasts despite exposure to tropical humidity and dust. The M8 bolts and nuts remain tight even after thousands of kilometers on unpaved laterite roads. The spiral harness continues to function without breakage, a common issue on other brands. This proven durability makes it the top choice for fleet operators across Africa.
Each rear lower protective device is wrapped in heavy gauge plastic to prevent scratches during shipping. The ABS/EBS spiral wiring harness is coiled separately and protected inside a cardboard box. The hexagon bolts and flange nuts are packaged in sealed poly bags to avoid moisture contact before installation. Store the product in a dry indoor area away from direct sunlight. Upon receipt, verify that all components match the packing list before installation. If any item is missing, contact your supplier immediately.
When selecting a rear lower protective device, fleet managers should consider weight, ease of installation, and long term reliability. The HOWO genuine device balances all three, weighing only 32 kg but providing high impact resistance. Installation takes less than one hour with standard tools. The use of genuine fasteners eliminates the need for frequent retightening. Combined with the integrated electrical harness, this device reduces downtime and improves resale value of the truck. It is a smart investment for any professional transport operation.
Statistics show that underride crashes account for a significant percentage of fatal truck accidents. A properly functioning rear lower protective device can reduce the risk of fatality by up to eighty percent. The HOWO MAX 4X2 genuine device is designed with a low ground clearance and sufficient lateral rigidity to engage a striking vehicle correctly.
This prevents the car from going under the truck bed where the occupant compartment would be crushed. Every truck on public roads should be equipped with a certified guard. By choosing genuine HOWO parts, you demonstrate commitment to road safety and regulatory compliance.
Generic rear protection bars often lack proper certification and use mild steel that bends easily. The HOWO genuine rear lower protective device uses high strength low alloy steel with yield strength exceeding 355 MPa. The mounting brackets are reinforced with gussets. The fasteners are not ordinary hardware store items but specially heat treated M8 bolts with controlled friction coefficient. Generic versions may skip the spiral harness entirely or use a straight cable that fails under articulation.
The genuine assembly includes the correct harness length and connector types. The price difference is minimal compared to the safety and longevity benefits.
Every genuine rear lower protective device comes with a traceable serial number. Users can verify authenticity through the HOWO dealer network. The packaging includes installation instructions and torque specifications. Replacement fasteners and harnesses are available separately for repair purposes. This product is backed by the manufacturer warranty against defects in materials and workmanship.
For large fleet purchases, volume discounts and bulk shipping options are available through official distributors. Always insist on genuine parts to avoid counterfeit products that compromise safety.
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