198-15-39421 Bearing is a precision-engineered Komatsu bearing designed for compatible D475 and WA900 heavy equipment. It is used in transmission-related assemblies where smooth rotation, reliable load support, and resistance to continuous operating stress are essential. Parts references show 198-15-39421 in Komatsu D475 transmission assemblies, together with gears, shafts, spacers, seals, and other drivetrain components.
| Parameter | Description |
| Part Number | 198-15-39421 |
| Product Name | Bearing |
| Brand | Komatsu |
| Product Type | Precision Support Bearing |
| Material | Bearing steel |
| Strength & Performance | Ensures smooth rotation in transmission and loader drive systems |
| Surface Treatment / Coating | Anti-rust oil protection |
| Dimensions & Structure | OEM specification |
| Function / Installation Position | Gearbox and rotating assemblies |
| Operating Conditions | Heavy-duty construction equipment |
| Compatible Models | Komatsu D475, WA900 |
| Weight | 0.2 kg |
| Packaging | Grease protected packaging |
| Lead Time | 30–90 days |
| Shipping Method | Air / Sea / Land |
| Payment Method | USD / RMB / Ruble |
| Warranty | 6 months |
The 198-15-39421 Bearing is suitable for compatible Komatsu equipment, including:
Public parts references confirm multiple D475A applications and also associate the part with the WA900-8R. Exact compatibility can vary according to machine serial number and transmission configuration.
If you are unsure whether this bearing matches your machine, please provide your machine model, serial number (PIN), or original part number. Our technical team can verify compatibility before shipment.
The 198-15-39421 Bearing is suitable for heavy equipment operating in demanding environments, including:
It is particularly suitable for large bulldozers and wheel loaders working under heavy loads and continuous-duty transmission conditions.
YLCM specializes in supplying construction and mining machinery parts to customers worldwide.
We provide:
Our product range covers bearings, transmission components, final-drive parts, torque converter components, engine parts, hydraulic parts, undercarriage components, seals, filters, cooling system parts, and other construction and mining machinery spare parts.
With professional sourcing capabilities and technical support, YLCM helps customers verify part numbers and select suitable replacement components while reducing equipment downtime.
Every bearing is professionally packaged to protect it from moisture, contamination, corrosion, and transportation impact.
Packaging options include:
Shipping solutions include:
The packaging method can be adjusted according to order quantity, product requirements, and transportation conditions.
Looking for 198-15-39421 Bearing for Komatsu D475/WA900?
Contact YLCM today to receive:
Please provide your machine model, serial number, required quantity, and destination country. Our professional team will verify compatibility and provide a competitive quotation.
Q: What is 198-15-39421?
A: 198-15-39421 is a Komatsu bearing used in transmission-related assemblies for compatible heavy equipment. Parts references identify it specifically as a bearing.
Q: Which Komatsu machines use this bearing?
A: Public application references include D475A models and WA900-8R. Exact application depends on the machine configuration and serial number.
Q: What type of bearing is 198-15-39421?
A: Trade data identifies 198-15-39421 as a needle bearing used for transmission shaft applications.
Q: What is the weight of 198-15-39421?
A: Public parts references list the weight at approximately 0.20 kg, while another parts listing gives approximately 0.22 kg.
Q: Where is this bearing used?
A: Parts references show it in transmission assemblies, working together with shafts, gears, spacers, seals, and other powertrain components.
Q: How can I confirm compatibility?
A: Please provide your machine model, serial number, or original part number, and our technical team will verify the correct application.
Q: What is the warranty period?
A: This product comes with a standard 6-month warranty against manufacturing defects.
Q: How is the bearing packaged?
A: The bearing is professionally protected against moisture, corrosion, contamination, and transportation impact using suitable export packaging.
