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Replacement 104mm piston ring set specifically for Big Bore Type 4 engines enlarged to 2413cc. Designed only for engines running 104mm barrels and pistons—this set is not suitable for standard 94mm or 96mm builds.
Ideal during a refresh or full rebuild where worn rings are causing low compression, oil consumption, blow-by, or crankcase pressure issues. Manufactured to suit high-capacity Type 4 engines, helping restore proper sealing and long-term reliability.
1 complete set – includes all piston rings required for one engine (4 pistons)
VW Baywindow – Type 4 aircooled engines converted to 104mm / 2413cc (1968–1979)
VW Type 25 / T3 – Type 4 aircooled engines converted to 104mm / 2413cc (1979–1983)
For Big Bore 104mm engines only
This Part Fits: Baywindow, Type 25, Porsche 914,
Availability: Special Order Item
Unit of Measure: Set
Manufacturer: Reproduction
Dimensions:
Width: 130mm
Height: 130mm
Depth: 100mm
Volume: 1690000mm3
Weight: 0.19kg