The Mahle Engine Piston Ring Set - .020 Oversize (part number 41788.020) is a direct-fit replacement for 1997-2017 Ford vehicles with 6.8L engines.
Specifications:
| Item Grade | Premium |
| Size | Shallow Groove |
| Second Ring Thickness (Axial Height) | 0.0587 in |
| Piston Ring Face Coating | Plasma-Moly |
| Top Ring Thickness (Axial Height) | 0.0586 in |
| Oil Ring Assembly Thickness (Axial Height) | 0.1181 in |
| Piston Ring Oversize | 0.020 in |
| Top Ring Material | Carbon Steel |
| Oil Ring Assembly Material | Stainless Steel |
| Bore Diameter (in) | 3.5709 |
| Second Ring Material | Carbon Steel |
Fits: 1997-2017 Ford models including F-450 Super Duty, E-350 Super Duty, F-550 Super Duty, F-53 Motorhome Chassis, E-450 Super Duty, F-250 Super Duty, F-350 Super Duty, F-59 Commercial Stripped Chassis and more - 6.8L engines. Confirm your year, make, model, and engine before ordering.
Fitment Notes: Size 0.020in; Material Grade Premium; Material UCR-Carbon Steel; LCR-Carbon Steel; OCR-Stainless Steel; Facing UCR-Plasma-Moly; OCR-Chrome; Axial Height UCR-1.5mm; LCR-1.5mm; OCR-3.0mm; Ring Type UCR:RF-13PF; LCR:THM-13; OCR: CP-20; Shallow Groove
Interchanges With: Hastings Piston Rings 2M4814.020
