1950–1967 Wiper Motor Voltage Reducer for 6V to 12V Conversion
Safely Run Your Original 6V Wiper Motor on a 12V System
When converting your air-cooled VW from 6 volts to 12 volts, the stock 6V wiper motor becomes a challenge. Later 12V wiper systems require different motors, linkages, and spindles—which don't always fit without major modification. This Voltage Reducer solves that problem by allowing you to keep your original 6-volt wiper motor, even after upgrading to a 12-volt electrical system.
The reducer steps down voltage precisely to avoid wiper over-speeding, motor damage, or failure of the auto-park feature. Clean installation. Variable speed support. No overheating like resistor-based methods.
Because Details Matter
• Lets your original 6-volt wiper motor run safely on 12-volt systems
• Avoids costly wiper system replacements or modifications
• Compatible with stock wiring and switch operation
• Variable-speed feature maintains OEM-like performance
• Compact and efficient—no bulky heat-dissipating resistors
• Sold individually—one required per vehicle
Fits the Following Models
• 1955–1967 Standard Beetle
• 1956–1967 Karmann Ghia
• 1950–1967 Split Window Bus
• 1962–1966 Type 3 (Notchback, Fastback, Squareback)
Tech Notes
• Voltage: 12V input, reduced output suitable for 6V wiper motor
• Installation location: inline between switch and motor
• Not for use with 12V wiper motors—this reducer is designed for retaining 6V motors only
• Ideal for restorers who want to preserve original wiper performance
• Compatible with both SWF and Bosch 6V motor types
Preserve originality without sacrificing your 12V upgrade—this smart reducer keeps your factory wipers functioning like VW intended.
Adapted with permission from VW-Resource.com.
Also known under these part numbers: (For reference only)
- 00-9344-0
- 707924338553
- 9344
- AC998030