5321612 TB Turbocharger Thrust Bearing Replacement

This aftermarket FOR 5321612 TB thrust bearing is a replacement component for turbocharger applications associated with QSV91 and Cummins QSK series engines. It serves heavy-duty mining and industrial equipment, including BelAZ trucks and Komatsu haul trucks, where verifying specific OEM reference numbers is essential for correct fitment.

Key Specifications

• Part Number: FOR 5321612 TB
• Product Type: Turbocharger Thrust Bearing
• Gross Weight: 1.5 kg
• Packing Dimensions: 11 x 11 x 13 cm
• Representative OEM References: 4037264, 3772429 TB, 3773274 TB, 3784335 TB
• Application Clues: QSV91, Cummins QSK38, QSK60, QSK78, QST30
• Image Availability: High-resolution studio shots showing front, top-angled, and bottom-angled views of the copper-colored circular bearing plate with six radial pins.

Application & Compatibility

Source application path clues for buyer verification. These are source category/application paths, not confirmed fitment claims:

• BROADCROWN > Custom Combined Heat and Power units supplied for Thames Water Riverside Sewage Treatment Works > QSV91
• BelAZ > Belaz Mining Truck > Belaz mining dump truck > Cummins QST30
• HITACHI > EX1900-6 > EX1900-6 Mining excavator > hydraulic shovel > CUMMINS QSK38
• KOMATSU > 830E series, including 830E-5 > 830E series, including 830E-5 Mining haul truck > QSK60 2500HP
• KOMATSU > 930E-2SE, 930E-4SE, 930E-5SE; 960E-1, 960E-2, 960E-2K; 980E-4, 980E-5 > QSK78
• KOMATSU > Komatsu 830E > Cummins QSK60

This thrust bearing is listed for reference applications including QSV91 units and Cummins QSK series engines in heavy-duty mining equipment. Representative OEM reference numbers such as 4037264, 3772429 TB, and 3773274 TB help confirm fitment. Application clues include BelAZ mining trucks with QST30, Komatsu 830E haul trucks with QSK60, and Hitachi EX1900-6 excavators with QSK38. Verify your specific engine code, vehicle model, and production year against these references before ordering.

Technical Notes

This thrust bearing is a mechanical component designed to manage axial loads within the turbocharger shaft assembly. The visible copper-colored circular plate features six radial pins and two side mounting holes, which help with installation alignment. Buyers should verify the specific material grade and load ratings against their engine requirements, as these details are not visible in the product images. For QSV91 and Cummins QSK applications, confirm that the bearing dimensions match the housing bore and shaft diameter. Technical fitment support is available to assist with reference checking the 130+ associated OEM reference numbers.

B2B Supply

LeadTurbo supports B2B buyers, repair shops, and distributors with volume pricing and worldwide shipping for this FOR 5321612 TB thrust bearing. Technical fitment support is available to help verify the 130+ associated OEM reference numbers against your specific engine and vehicle application. Inquire for bulk orders or to confirm packing details, such as the 1.5 kg gross weight and 11 x 11 x 13 cm dimensions, before placing an order.