TS Gapl. Piston Ring Set GM Duramax 6.6L 4.075

The Total Seal Piston Ring Set for GM Duramax 6.6L with 4.075-inch bore is a street-duty ring kit engineered for OEM replacement and performance restoration in heavy-duty diesel engines. Built to original equipment specifications, this set restores compression, reduces blowby, and maintains proper ring tension under the sustained high-pressure cycles that diesel combustion demands.

The kit features standard-tension steel construction with precisely specified dimensions: 3.0 mm top ring thickness, 2.0 mm second ring thickness, and 3.0 mm oil ring thickness. These specifications ensure proper gas sealing on the power stroke while maintaining controlled oil return to the crankcase—critical for long-term engine durability in trucks running sustained loads, towing, or high-mileage service. Total Seal rings are manufactured to strict tolerances and are a direct fit for GM Duramax 6.6L blocks.

This piston ring set is intended for Duramax diesel owners and engine builders performing overhauls or rebuilds who need reliable OEM-specification replacement rings. It is suitable for both light-duty pickup trucks and medium-duty applications where maintaining factory performance and fuel economy is the priority. Proper installation with correct ring gap clearance and precise ring seating is essential for optimal function.

Total Seal is recognized in the engine rebuilding industry for precision ring manufacturing. This kit provides a complete piston ring set—all rings needed per cylinder—making it straightforward to order the correct quantity for a full rebuild without calculating individual ring counts.