Total Seal® pioneered Gapless® technology over 50 years ago. Our Gapless® piston ring design provides consistent performance that doesn’t fade with opening end gaps. They are used for all aspects of Motorsports, Diesel, Industrial, Compressors and Aviation.
Total Seal® Gapless® patented Top or 2nd Piston Rings provide:
- Elimination of blow-by
 - Increased horsepower & torque
 - Longer engine life
 - Improved consistency
 - Longer ring life
 - Better sealing
 - Saves money (fewer tear-downs)
 - Cleaner, cooler engine oil
 - Better oil control
 - Increased intake signal
 - Wider torque curve
 - More engine vacuum
 
Specifications
- Part #: M3690
 - Description: Gapless Top Ring Sets
 - # of Cylinder: 8
 - Bore in: 4.000
 - Bore mm: 101.60
 - Groove Size: 1/16 1/16 3/16
 - Available Sizes: STD 5 10 15 20 25 30 35 40 45 55 60 65 80 85 95 105
 - Oil Tension: STD OIL,20LB+/–
 
If we dont show your size in stock please contact our sales team on 07 3808 1986
Custom ring sets are also available
| Sizes | Part # | Bore Inch | 
| STD | M3690 | 4.000 | 
| 5 | M3690 | 4.005 | 
| 10 | M3690 | 4.010 | 
| 15 | M3690 | 4.015 | 
| 20 | M3690 | 4.020 | 
| 25 | M3690 | 4.025 | 
| 30 | M3690 | 4.030 | 
| 35 | M3690 | 4.035 | 
| 40 | M3690 | 4.040 | 
| 45 | M3690 | 4.045 | 
| 55 | M3690 | 4.055 | 
| 60 | M3690 | 4.060 | 
| 65 | M3690 | 4.065 | 
| 80 | M3690 | 4.080 | 
| 85 | M3690 | 4.085 | 
| 95 | M3690 | 4.095 | 
| 105 | M3690 | 4.105 |