
Product Introduction
The 31313 / WG9981031313 Angular Tooth External Bearing is a high-quality tapered roller bearing designed for SINOTRUK HOWO 457 heavy-duty truck axle systems. It is mainly used in axle and wheel hub assemblies to support rotating components, maintain accurate positioning, and ensure stable operation under heavy-duty working conditions.
Manufactured according to OEM standard quality requirements, this bearing adopts high-strength bearing steel and precision manufacturing technology to provide excellent durability, impact resistance, and wear resistance. The tapered roller bearing structure allows efficient handling of combined radial and axial loads, making it suitable for heavy trucks operating under high load, high torque, and long-distance transportation conditions.
The 31313 / WG9981031313 bearing is commonly applied in SINOTRUK HOWO 457 axle systems, supporting axle rotating parts and helping reduce friction, improve mechanical stability, and extend the service life of related chassis components. It is widely used in heavy-duty transportation vehicles, construction trucks, and commercial fleet maintenance applications.
As an aftermarket replacement part, this angular tooth external bearing is suitable for truck repair workshops, axle maintenance specialists, fleet operators, and wholesale spare parts distributors. It provides a reliable replacement solution with OEM-standard quality, accurate installation, and long service life for SINOTRUK HOWO axle repair requirements.

Technical Specifications
| Item | Specification |
|---|
| Product Name | Angular Tooth External Bearing |
| Part Number | 31313 / WG9981031313 |
| Bearing Type | Tapered Roller Bearing |
| Vehicle Brand | SINOTRUK HOWO |
| Application | 457 Axle / Wheel Hub / Differential System |
| Product System | Chassis & Axle Parts |
| Compatible Axle | SINOTRUK 457 Axle |
| Bearing Structure | Single Row Taper Roller Bearing |
| Material | High Grade Bearing Steel |
| Load Type | Combined Radial & Axial Load |
| Installation Position | Axle Rotating Assembly |
| Installation Type | Direct Replacement |
| Quality Standard | OEM Standard |
| Condition | Brand New |
| Packaging | Export Standard Packaging |
Vehicle Fitment
| Vehicle Brand | Compatible Models |
|---|
| SINOTRUK HOWO | HOWO, HOWO A7, HOWO T7H, HOWO TX, HOWO MAX |
| SINOTRUK 457 Axle | 457 Rear Axle Systems |
| SINOTRUK Steyr | Steyr Heavy Duty Trucks |
| SINOTRUK SITRAK | C5H, C7H, G7 |
| SHACMAN | F2000, F3000, X3000, X5000 |
| FAW JIEFANG | J5P, J6P, J7 |
| DONGFENG | Tianlong, Tianjin KR, KL, GX |
| FOTON AUMAN | ETX, GTL, EST, EST-A |
| BEIBEN | NG80, V3 |
| Heavy Duty Trucks | Vehicles Equipped with Compatible Axle Bearing Systems |
Payment & Shipping
| Category | Options |
|---|
| Payment Methods | T/T (Bank Transfer), PayPal, Western Union, MoneyGram, Visa, MasterCard, L/C (Letter of Credit), Alibaba Trade Assurance |
| Express Shipping | DHL, FedEx, UPS, TNT |
| Freight Shipping | Air Freight, Sea Freight, Railway Freight |
| Delivery Time | Express: 3-7 Working Days; Air Freight: 7-15 Days; Sea Freight: 20-45 Days |
| Shipping Coverage | Worldwide Shipping Available |
| Trade Terms | EXW, FOB, CFR, CIF, DDP |
Related Products Categories
| Section/System | Common Spare Parts |
|---|
| Engine Parts | Cylinder Block, Cylinder Head, Piston, Piston Ring, Crankshaft, Connecting Rod, Camshaft, Fuel Injector, Turbocharger, Water Pump, Oil Pump, Alternator, Starter Motor, Sensors |
Transmission & Drivetrain Parts
| Section/System | Common Spare Parts |
|---|
| Transmission System | Transmission Assembly, Synchronizer, Gear Set, Bearing, Oil Seal, Shift Fork, Clutch Disc, Pressure Plate, Release Bearing, PTO Assembly, Driveshaft, Universal Joint, Differential Assembly |
| Section/System | Common Spare Parts |
|---|
| Chassis Parts | Front Axle, Rear Axle, Kingpin Kit, Wheel Hub, Wheel Bearing, Leaf Spring, Air Spring, Shock Absorber, Brake Drum, Brake Disc, Brake Chamber, Slack Adjuster, Steering Gearbox |
Cabin & Body Parts
| Section/System | Common Spare Parts |
|---|
| Cabin Parts | Cab Assembly, Dashboard, Door Assembly, Door Lock, Mirror, Headlamp, Tail Lamp, Bumper, Grille, Fender, Seat, AC Compressor, Wiring Harness |
