410x180mm Big Truck Brake Drums 6774210401 Mercedes Benz Brake Drum For Truck

Mercedes-Benz Truck Brake Drum 6774210401 | 410x180mm Heavy-Duty Rear Axle Component

Product Overview

The 6774210401 Brake Drum is a premium-grade aftermarket replacement specifically engineered for Mercedes-Benz heavy-duty trucks. Designed to provide maximum stopping power and safety, this brake drum is the ideal choice for maintenance and repair of the Actros, Axor, and Atego series.

Manufactured using high-carbon HT250 / G3000 Gray Cast Iron, our 6774210401 model is built to withstand extreme thermal stress and mechanical loads. The advanced metallurgy ensures rapid heat dissipation, preventing "brake fade" and ensuring consistent performance in demanding long-haul logistics or construction environments.

Vehicle Compatibility

This brake drum is a direct fit for various Mercedes-Benz commercial vehicle platforms:

Brand: Mercedes-Benz (Trucks & Buses)

Model Series: Actros (MP1/MP2/MP3), Axor, Atego, Econic.

Axle Application: Rear Axle (Standard 10-Hole Hub System).

Brake Type: SN 4218 (Drum diameter 410mm x 180mm).

Technical Specifications

Precision dimensions are the foundation of technical SEO. Here are the critical specs for 6774210401:

Cross-Reference & Interchange

To ensure a perfect match, this component is interchangeable with the following reference numbers:

Mercedes-Benz: 6774210401 / A6774210401 / 677 421 04 01

Febi Bilstein: 02581

DT Spare Parts: 4.62257

Wabco: 12999712

PE Automotive: 016.347-00A

Textar: 94017300

Key Benefits

Exceptional Heat Sink Capacity: The specialized iron alloy allows for high thermal energy absorption, reducing the risk of heat-cracking under heavy loads.

Precision Dynamic Balancing: Every 6774210401 drum is factory-balanced to eliminate vibration, protecting wheel bearings and ensuring a smoother ride. 

OEM-Matching Tolerances: CNC-machined to exacting tolerances for a "plug-and-play" installation, matching or exceeding original equipment performance. 

Longer Service Life: Enhanced wear resistance means longer intervals between replacements, significantly lowering the Total Cost of Ownership (TCO) for fleet managers.

Corrosion Protection: (Optional) Available with a protective coating to prevent rust during sea freight and storage.

Frequently Asked Questions (FAQ)

1. Which vehicle models is the 6774210401 Brake Drum compatible with?

The 6774210401 Brake Drum is engineered specifically for heavy-duty commercial vehicles. It is a direct OEM replacement commonly used in Mercedes-Benz trucks (Atego/Axor series) and specific trailer axle configurations. To ensure a perfect fit, we recommend verifying the dimensions—specifically the inner diameter and bolt hole pattern—against your vehicle’s service manual before purchasing.

2. What material is used for the 6774210401, and how does it manage heat?

Our 6774210401 brake drums are manufactured from high-grade G3000/G3500 grey cast iron. This material is chosen for its superior thermal conductivity and dampening properties. It effectively dissipates heat during prolonged braking—preventing brake fade and ensuring consistent stopping power even under heavy load conditions.

3. How can I tell when it is time to replace my 6774210401 Brake Drum?

You should inspect or replace your brake drum if you notice any of the following symptoms:

Vibrations or Pulsing: Often caused by a warped drum or "out-of-round" wear.

Squealing or Grinding Noises: Indicating excessive friction or scoring on the inner surface.

Heat Cracks: Small surface cracks are common, but any deep radial cracks mean the drum must be replaced immediately for safety.

Wear Limit: Always check the maximum diameter (Max Dia) stamped on the drum; if the wear exceeds this limit, the structural integrity is compromised.

4. Why choose this 6774210401 Brake Drum over cheaper aftermarket alternatives?

Safety and longevity are the primary factors. While budget options may look similar, our 6774210401 undergoes rigorous dynamic balancing to prevent wheel wobble and premature bearing wear. The precise casting process ensures higher resistance to "bell-mouthing" (expansion under heat), providing a longer service life and lower cost-per-mile for fleet operators