Product Introduction

The 3813370511 Cross Joint is a critical drivetrain component used in the propeller shaft assembly of Mercedes-Benz SK, MK, NG series, and Beiben NG80 heavy-duty trucks.

Installed between the yokes of the driveshaft, the cross joint allows smooth torque transmission while accommodating changes in shaft angle caused by suspension movement, axle articulation, and chassis flex during vehicle operation.

The universal joint works together with:

• Propeller shaft
• Slip yoke
• Driveshaft flange
• Transmission output flange
• Differential input flange
• Center bearing (where applicable)

Its primary functions include:

• Transmitting engine torque efficiently
• Compensating for driveline angular movement
• Reducing drivetrain vibration
• Maintaining smooth power delivery
• Improving driveline reliability

Heavy-duty trucks operate under high torque, frequent load changes, and harsh road conditions. A worn or damaged universal joint may lead to:

• Driveline vibration
• Abnormal knocking noise
• Grease leakage
• Needle bearing failure
• Driveshaft imbalance
• Premature transmission or differential wear

The 3813370511 cross joint is manufactured from premium 20CrMnTi alloy steel using precision forging, carburizing, quenching, and precision grinding. The cross trunnions are surface-hardened to provide exceptional wear resistance, while high-quality needle bearings ensure smooth rotation and reduced friction.

Designed according to OEM specifications, this universal joint provides direct replacement compatibility for Mercedes-Benz SK, MK, NG, and Beiben NG80 driveline systems. It is widely used for propeller shaft repair, drivetrain rebuilding, fleet maintenance, mining trucks, construction vehicles, and long-haul commercial transportation.

Each cross joint undergoes comprehensive quality inspections including:

• Material composition analysis
• Heat treatment hardness testing
• Bearing clearance inspection
• Precision dimensional measurement
• Dynamic balance verification
• Fatigue testing
• Installation fitment verification

to ensure OEM-level reliability, durability, and long service life.

Technical Specifications

Vehicle Fitment

Payment & Shipping

Related Products Categories

Engine Parts System

Transmission & Drivetrain Parts

Chassis & Suspension Parts

Cabin & Body Parts