Hella 358400321 Brake System Vacuum Pump Vane Mechanical with Seal

The Hella 8TM 358 400-321 is a mechanical brake system vacuum pump designed to ensure consistent and reliable vacuum supply for pneumatic brake boosters. Built to OEM standards, this vane-type pump delivers dependable braking performance across a wide range of vehicle applications including Ford, Land Rover, and Lincoln models from 2012–2020.

Hella is a globally established original equipment manufacturer and a recognized market leader in vacuum pump technology, supplying pumps that meet or exceed original factory specifications.

How It Works:

The pump operates on the rotary vane compressor principle. An off-centre rotor spins within the pump chamber, with blades that slide along the chamber wall. The continuous change in enclosed volume generates a vacuum, drawing air through the brake booster to provide consistent pedal feel and braking force.

Key Features:

• Type: Mechanical vane pump
• Application: Brake system vacuum supply
• Connections: 1 port
• Includes: Replacement seal/gasket
• OEM-grade quality: Manufactured to original equipment specifications
• Compatible with conventional, hybrid, and other advanced engine technologies
• Professional installation by qualified personnel recommended

Replace this pump if the existing unit shows signs of mechanical damage, vacuum leaks, or moisture ingress to maintain safe and effective braking performance. Part number cross-reference: 8TM 358 400-321 / 8TM358400321 / 358400321.