Description

Genuine OEM Mercedes-Benz Auxiliary Heater A4478300861

This is an original factory Mercedes-Benz Auxiliary Heater / Supplemental Heater Unit with part number A4478300861.

This unit is a used genuine OEM Mercedes-Benz part, removed from a working vehicle and was in good working condition at the time of removal.

It is suitable as a replacement for a damaged, faulty, or missing auxiliary heater when the original part number and vehicle configuration match.

Part Number

• A4478300861

Compatible Models

• 2019-2023 Mercedes-Benz Sprinter 2500
• Mercedes-Benz Sprinter W447
• Selected Sprinter models using the same part number and heating system configuration

Please confirm the part number and vehicle configuration before purchasing.

Item Features

• Genuine Mercedes-Benz OEM
• Original factory auxiliary heater
• Supplemental heating unit
• Part Number: A4478300861
• Used OEM replacement
• Removed from a working vehicle
• Good working condition when removed
• Original connectors and housing

Condition

Used – Good Working Condition

This auxiliary heater was removed from a working vehicle and was in good working condition at the time of removal.

As a used OEM part, it may have normal signs of previous use such as minor scratches, marks, dust, or cosmetic wear. Please check the listing photos carefully for the actual condition.

Important Information

• Please match your original part number with A4478300861 before purchasing.
• Compare the connectors, mounting points, labels, and physical appearance with your original unit.
• Vehicle model and year alone do not guarantee compatibility.
• Please verify that your vehicle has the same auxiliary heating system.
• Some vehicle modules or heating systems may require coding, programming, or initialization after installation.
• We only sell the part and do not provide programming or coding services.
• Professional installation is recommended.

Before Purchasing

Please make sure:

1. Your original part number matches A4478300861.
2. The connectors and physical appearance match the listing photos.
3. Your vehicle uses the same auxiliary heating system.
4. The unit is suitable for your exact vehicle configuration.

What you see in the listing photos is what you will receive, unless otherwise stated.