Vacuum Box + MAP Sensor

For sale is a used OEM engine bay vacuum control box removed from a 1988-1991 Honda Prelude Si with the B20A5 2.0L engine.

This is the factory Honda vacuum/emissions control box assembly used on 3rd generation Prelude Si models. This box contains the original vacuum control components, solenoids, valves, and vacuum routing components used for the emissions/EGR system.

Fitment:

• 1988 Honda Prelude Si
• 1989 Honda Prelude Si
• 1990 Honda Prelude Si
• 1991 Honda Prelude Si
• Engine: B20A5 2.0L

Please verify fitment before purchasing. Buyer is responsible for confirming compatibility with their exact year, trim, engine, and transmission.

Included Components / Sensors / Valves:
This vacuum control box may include the following factory components, as shown in the photos:

• OEM vacuum control box housing
• EGR vacuum control solenoid / frequency solenoid
• EGR control valve assembly
• MAP sensor system
• Vacuum switching/control solenoids
• Vacuum delay/check valves
• Vacuum reservoir/tank components
• Emissions vacuum routing fittings
• Original vacuum hose connections
• Mounting bracket/hardware, if pictured

Exact included parts are shown in the listing photos. Please review all photos carefully, as only the components pictured are included.

Condition:

• Used OEM Honda part
• Removed from an older 1988-1991 Honda Prelude Si
• Shows normal wear from age and use
• May have dirt, dust, oxidation, faded plastic, brittle hoses, residue, or staining
• Vacuum hoses may need replacement due to age
• Solenoids/valves have not been professionally tested or rebuilt
• Sold as a used restoration/replacement part
• Good candidate for someone restoring factory emissions equipment or replacing a missing/damaged vacuum box

Important Note:
This is a used vacuum/emissions assembly from a 30+ year-old vehicle. Because it contains multiple vacuum-operated and electrical components, it is sold as used and untested unless otherwise stated. Buyer should expect to inspect, clean, and possibly replace vacuum hoses before installation.

What’s Included:

• Engine bay vacuum control box assembly
• Included solenoids/valves/sensors shown in photos
• Only what is pictured is included

Shipping:
Item will be packaged securely to protect the plastic housing, fittings, and vacuum ports during shipping.

Keywords:
Honda Prelude vacuum box, 1988 Prelude Si vacuum control box, 1989 Prelude Si vacuum box, 1990 Prelude Si emissions box, 1991 Prelude Si vacuum control assembly, B20A5 vacuum box, 3rd gen Prelude Si vacuum solenoid, EGR vacuum solenoid, Prelude EGR control valve, Honda Prelude emissions control box, 36000-PK2-661.