
Product Introduction
The 6019-Z / 190003310239 Differential Rear Bearing is a high-quality axle bearing designed for SINOTRUK HOWO and Steyr heavy-duty trucks. It is mainly installed in rear axle differential assemblies to support rotating components, maintain accurate positioning, and ensure smooth power transmission under heavy-duty operating conditions. The 190003310239 bearing is identified as a 6019-Z deep groove ball bearing with dust cover used in SINOTRUK rear driving axle and differential housing assemblies.
Manufactured according to OEM standard quality requirements, this bearing adopts precision machining technology and high-strength bearing steel materials to provide reliable durability, stable rotation performance, and excellent resistance against wear. The dust cover structure helps protect internal bearing components from contamination and improves service reliability in demanding truck operating environments.
The 6019-Z / 190003310239 bearing is commonly applied in SINOTRUK HOWO and Steyr rear axle differential systems, supporting differential components during heavy transportation, construction, and logistics operations. Its reliable design helps reduce maintenance frequency and extend the service life of axle assemblies.
As an aftermarket replacement part, this differential rear bearing is suitable for truck repair workshops, axle maintenance specialists, fleet operators, and wholesale spare parts distributors. It provides an OEM-standard replacement solution with accurate fitment, dependable performance, and long service life for SINOTRUK rear axle repair requirements.


Technical Specifications
| Item | Specification |
|---|
| Product Name | Differential Rear Bearing |
| Part Number | 6019-Z / 190003310239 |
| Bearing Type | Deep Groove Ball Bearing |
| Vehicle Brand | SINOTRUK HOWO / Steyr |
| Application | Rear Axle Differential Assembly |
| Product System | Chassis & Axle Parts |
| Bearing Structure | Single Row Deep Groove Ball Bearing |
| Seal / Cover Type | Dust Cover Type |
| Material | High Grade Bearing Steel |
| Inner Diameter | 95 mm |
| Outer Diameter | 145 mm |
| Width | 24 mm |
| Load Type | Radial Load Support |
| Installation Position | Differential Housing / Rear Axle 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 Steyr | Steyr, Steyr King Heavy Duty Trucks |
| SINOTRUK Rear Axle System | Rear Driving Axle / Differential Assembly |
| 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 Differential 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 |
