Hella 003259121 Engine Oil Pressure Switch

The Hella 003259121 is a high-quality engine oil pressure switch designed to monitor and regulate oil pressure in the engine's lubrication system. This precision-engineered component installs directly into the engine's oil circuit and continuously monitors oil pressure levels, activating warning indicators when pressure falls outside safe operating parameters.

Key Features:

• OEM-quality construction meeting original equipment specifications
• Switch pressure range: 0.2 to 0.5 bar operating threshold
• Normally closed design for reliable circuit operation
• Direct replacement for BMW part numbers 1243414, 61311243414, and related cross-references
• Compatible with Mercedes-Benz and Smart vehicle applications
• Manufactured by Hella, a trusted OE supplier to major automotive manufacturers

This oil pressure switch serves a critical safety function by alerting drivers to potentially dangerous low oil pressure conditions that could result in engine damage. When the ignition is switched on, the switch allows the oil pressure warning light to illuminate until proper pressure is achieved. Hella's engineering expertise ensures precise pressure sensing and reliable long-term performance in demanding engine environments.