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The WG9003395320 Needle Roller Bearing K455320 is a precision chassis bearing built for SINOTRUK Howo trucks, providing high radial load capacity and smooth rotation in compact driveline and chassis assemblies. As a trusted supplier of genuine Sinotruk howo parts, we offer this OEM-grade needle roller bearing as a direct replacement for the factory original. The WG9003395320 bearing ensures correct fit, low friction and dependable operation on Howo A7, T7H, HOWO 371 and HOWO 380 models.
Manufactured from high-carbon chromium bearing steel with precision-ground raceways, a rigid cage and a corrosion-resistant finish, the Needle Roller Bearing K455320 is made to exact OEM dimensions. Its compact cross-section maintains correct internal clearance, resists vibration, heat, dust and moisture, and performs reliably in constant commercial truck service.
OEM WG9003395320 • Needle roller bearing • K455320 • High radial load • Direct OEM fit
The WG9003395320 Needle Roller Bearing K455320 is a compact roller bearing that uses long, thin cylindrical rollers to support high radial loads within a small cross-section. It is used in chassis, driveline and auxiliary assemblies where space is limited but load capacity must remain high.
This WG9003395320 bearing is manufactured to exact OEM dimensions. Bore diameter, outer diameter, width, roller complement and cage design all match the factory specification, so it fits correctly and carries load smoothly under demanding conditions.
Common signs that a needle roller bearing needs replacement include rumbling or grinding noises from the rotating assembly, vibration felt through the chassis, excessive heat at the bearing housing, grease leaks from worn seals, and visible pitting or spalling on the rollers or raceways.
Fitting a new WG9003395320 Needle Roller Bearing K455320 restores smooth rotation, correct shaft alignment and reliable load support. It is a key part for keeping chassis and driveline components running quietly and efficiently.
The WG9003395320 Needle Roller Bearing K455320 fits SINOTRUK Howo trucks, mainly the A7, T7H, HOWO 371 and HOWO 380 series. It is a direct OE replacement, so it presses onto the original shaft and into the factory housing bore without modification.
This bearing is used in long-haul transport, construction, mining, logging and municipal service. In these roles, it must support rotating shafts reliably despite vibration, heavy loads, heat, dust, mud, water and constant operation.
When fitting the WG9003395320, inspect the shaft, housing bore, seals and adjacent components for wear, burrs or corrosion. A damaged shaft or housing can prevent a new bearing from seating correctly, so checking these areas saves time and avoids repeat repairs.
For fleets running multiple HOWO trucks, keeping the Needle Roller Bearing K455320 in stock makes chassis and driveline repairs faster and more predictable, reducing downtime and keeping vehicles on the road.
Replacing the WG9003395320 Needle Roller Bearing K455320 is a job for a qualified technician using a suitable press and bearing tools. Clean the work area first so dirt cannot enter the bearing during installation.
Remove the old bearing with a puller or press, taking care not to damage the shaft or housing bore. Inspect the shaft and bore for wear, scoring or corrosion, and clean them thoroughly before fitting the new bearing.
Press the new WG9003395320 bearing onto the shaft and into the housing using the correct adapters. Apply pressure only to the ring being fitted, never through the rollers. Check that the bearing seats fully and rotates freely by hand.
Refit seals, covers and surrounding components, then road test the truck to confirm quiet, vibration-free operation. During routine service, listen for bearing noise and check for grease leaks or excessive heat at the housing.
The WG9003395320 Needle Roller Bearing K455320 is produced in an ISO 9001-certified plant using high-carbon chromium bearing steel. Incoming steel is checked for hardness, chemical composition and cleanliness before production begins.
Each bearing is ground, honed and assembled on precision equipment, then inspected for bore diameter, outer diameter, width, internal clearance, raceway finish and cage integrity. Every batch is dimensionally checked, and samples receive a rotation and noise test before packing.
Batch samples undergo thermal cycling, vibration, salt spray and fatigue testing to confirm long-term reliability in heavy-duty truck use. These checks help ensure the bearing performs in the tough conditions Howo trucks face every day.
The WG9003395320 is covered by a 12-month warranty against material and workmanship defects. Strict quality control means every needle roller bearing matches the fit, function and durability of the original factory part.
The WG9003395320 Needle Roller Bearing K455320 helps maintain smooth rotation, correct alignment and reliable load support on your Howo truck. A worn or damaged bearing can cause noise, vibration, heat and costly damage to shafts, housings and gears.
Made from quality bearing steel with precision-ground raceways and a rigid cage, the WG9003395320 offers dependable performance and long service life. Its exact OEM dimensions keep installation simple and work with the factory shaft and housing.
Fleet managers gain shorter repair times, lower maintenance costs and better vehicle availability. Owner-operators get confidence from a needle roller bearing that meets strict OEM standards and is backed by a 12-month warranty.
Choose the WG9003395320 Needle Roller Bearing K455320 for your SINOTRUK Howo and keep your chassis rotating smoothly and reliably for the long haul.
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