Belt Tensioner Pulley for Mercedes-Benz GL300 GL350 ML-Class W164 2003-2019, Replaces 6422000070 6422001370

Description

Maintain proper serpentine belt alignment and tension with this replacement belt tensioner pulley. Engineered for select Mercedes-Benz GL-Class and M-Class diesel applications, this component addresses wear-related noise, belt slippage, and accessory drive system issues common in high-mileage vehicles from 2003-2019 production.

Key Features

• Direct replacement belt tensioner pulley for Mercedes-Benz GL300, GL350, and ML-Class W164 models
• Interchangeable with OE part numbers 6422000070 and 6422001370
• Fits select models from 2003 through 2019 production years
• Helps restore proper belt tension and reduce accessory drive noise
• Manufactured to meet or exceed aftermarket quality standards for engine accessory components

Technical Specifications

Package Includes

• 1 x Belt Tensioner Pulley

FAQ

Q: Will this fit my 2012 Mercedes-Benz GL350?

A: This pulley is designed for GL350 models from 2003-2019. Please verify your specific model year and engine variant against the OE reference numbers 6422000070 or 6422001370 before purchase.

Q: Does this include the complete tensioner assembly or just the pulley wheel?

A: This listing is for the belt tensioner pulley only. The complete tensioner assembly with arm and spring is not included.

Q: What is the difference between part numbers 6422000070 and 6422001370?

A: These are interchangeable OE reference numbers for the same tensioner pulley application. Both numbers reference this replacement component specification.

Q: Is this a genuine Mercedes-Benz part or aftermarket?

A: This is an aftermarket replacement part designed to meet original equipment specifications. It is not a genuine Mercedes-Benz branded component.