VW T1 Bus - T2 Bus - Beetle - KG | Vacuum unit for distributor with vacuum advance BBT #1998 | 311 905 271 - 113 905 271

VW T1 Bus - T2 Bus - Beetle - KG | Vacuum unit for distributor with vacuum advance BBT #1998 | 311 905 271 - 113 905 271

The vacuum box for your distributor automatically advances the ignition timing when you accelerate - making your engine run more efficiently and helping to reduce consumption. This BBT unit is suitable for both the T-series and the classic Beetle - and also fits later models such as the Type 3 - Type 4 - and Karmann Ghia. You can recognize it by the OEM number 311 905 271 (or 113 905 271 on some units). Combine this vacuum box with new sensor guides and hoses for a complete overhaul of your ignition control.