Bosch Vacuum Advance Unit 1 237 121 607 – used, fully functional | Porsche 911

Description

Original Bosch vacuum advance unit 1 237 121 607 – used, fully functional

#1156

For sale is a used, original Bosch vacuum advance unit 1 237 121 607.

The vacuum advance unit is intended for, among others, classic Porsche 911 and 911 S with 2.7-liter flat-six engines as well as certain Porsche 911 Carrera 3.0 models.

Original Bosch vacuum advance units are particularly interesting for the professional rebuild and authentic restoration of classic Porsche ignition distributors and classic cars.

The vacuum advance unit is part of the ignition timing adjustment and enables a load-dependent adjustment of the ignition timing. In the corresponding Porsche ignition systems, the adjustment mechanism in the ignition distributor is actuated via the applied vacuum.

Correctly functioning vacuum advance is important for maintaining the ignition curve specified by the manufacturer.

Product Details

• Manufacturer: Bosch
• Item: Vacuum advance unit
• Bosch part number: 1 237 121 607 / 1237121607
• Bosch short number: 07065
• Porsche cross-reference number: 911 602 932 00, 91160293200
• Condition: used, refurbished
• Application: Vacuum-dependent ignition timing adjustment
• Application: Classic Porsche 911 ignition systems

Matching Vehicles

Porsche 911 2.7 (G-Model)

• Body: Coupé / Targa
• Engine: 2.7 liter, 6-cylinder flat engine
• Displacement: 2,687 cm³
• Power: 150–165 hp
• Years: 1974–1977

Porsche 911 S 2.7 (G-Model)

• Body: Coupé / Targa
• Engine: 2.7 liter, 6-cylinder flat engine
• Displacement: 2,687 cm³
• Power: 160–175 hp depending on version
• Years: 1974–1977

Porsche 911 Carrera 3.0

• Body: Coupé / Targa
• Engine: 3.0 liter, 6-cylinder flat engine
• Displacement: 2,993 cm³
• Power: 200 hp (147 kW)
• Years: 1976–1977

Important: Vehicle assignment may vary depending on engine, year of construction, country version, and installed Bosch ignition distributor. The listed vehicle data does not constitute a general installation approval.

Please check the number of the existing component or ignition distributor before purchasing.

Fitment and Application

Please compare the Bosch part number 1 237 121 607 or the Porsche cross-reference number 911 602 932 00 with your existing component before purchasing.

Vacuum advance units from different Bosch ignition distributors can differ in terms of their mounting, adjustment characteristics, and vacuum curve. A visually similar version is therefore not necessarily interchangeable.

If you have any questions regarding compatibility or the item, we will be happy to assist you.

Radspieler Classic – Your specialist for classic Bosch spare parts, classic car technology, and professional ignition distributor rebuilds.