
TOPRAN 408320 Warming Relay - Compatible with Mercedes 639, 906, Spr, 203, 211, 414 | 12V
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Fitment
Listed for Mercedes-Benz
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Product details
Optimize Your Mercedes with TOPRAN 408320 Warming Relay
The TOPRAN 408320 Warming Relay is an essential component designed for automotive technicians and Mercedes vehicle owners to enhance engine performance during pre-heating conditions. This versatile relay can be used in various Mercedes models such as the 639, 906, Sprinter, 203, 211, and 414.
Key Features:
- Type: Warming Relay
- Nominal Voltage: 12 V
- Number of Connections: 4
- Relay Function: Pre-Heating Relay
Why Choose TOPRAN 408320?
This warming relay is specifically engineered to meet the demands of automotive service. By facilitating optimal engine temperatures, it helps ensure smooth engine operation and improved fuel efficiency.
Specifications:
- Voltage: 12 V
- Connections: 4
- Relay Function: Designed for pre-heating
Installation Instructions:
For best results, consult your vehicle's service manual and ensure proper wiring connections when installing the TOPRAN 408320 relay. Regular maintenance and checks are recommended to maintain optimal operation.
Checking fitment
Match the part number above against the part you are replacing, or check the models and engines named on this page against your vehicle. If the number matches, the part matches.
Shipping
Orders leave the warehouse in 1–2 business days. Free shipping on every US order.
Returns & warranty
30 days to return an unused part in its original packaging. Manufacturer warranty of 12 months against defects.







