Description
Three-way cooling relay with wiring harness compatible with Citroën and Peugeot vehicles. This replacement part listed under OEM numbers 9652021180, 9652021280, 9662570980 and 6500EJ is designed to control the radiator/cooling fan circuit and ensure reliable fan operation under normal driving conditions.
The relay functions as an electrical switch that supplies current to the cooling fan(s) when the engine reaches operating temperature or when additional cooling is requested (for example by the air conditioning system). Correct relay operation is essential to avoid engine overheating and to maintain stable cabin climate during A/C use.
Symptoms of a failing relay include the radiator fan failing to run, intermittent fan operation, engine temperature rising at idle, or blown fuses due to internal shorting. Common causes of relay failure are heat-related stress, corrosion on terminals, worn internal contacts, or damage to the wiring pigtail. These used components are inspected and supplied as direct-fit replacements.
Replacement is generally straightforward: disconnect the battery, locate the relay in the engine bay fuse/relay box or near the cooling system harness, unplug the old relay or release its retaining clip, fit the new relay with its wiring harness and secure connectors, then reconnect the battery and verify fan operation. No special tools are usually required, though access can vary by model and some vehicles may require removal of trim or covers.
Technical Information
- Manufacturer: Citroën, Peugeot
- Model: Citroën C4 Picasso, Citroën C5
- Product Codes: 9652021180, 9652021280, 9662570980, 6500EJ
- Additional Numbers: N/A
Suitable for professional workshops and DIY enthusiasts, this relay with wiring harness offers a practical and cost-effective way to restore proper cooling fan control and reduce the risk of overheating-related damage. Always verify compatibility by OEM number before installation.









