Product Description
MAHLE S41768.010 single-cylinder plasma-moly/chrome piston ring set for the NAVISTAR/FORD 7.3L Power Stroke (1994–2003). This is a +.010" over ring pack sized for a 4.120" bore. Sold per piston (order 8 sets for a full engine).
- Material/Type: Plasma-moly ductile iron top ring with chrome face
- Size: +.010" over (4.120" bore)
- Pack contents (per piston): compression and oil control rings
- Sold as: 1 cylinder set (quantity 1 = rings for one piston)
- UPC/GTIN: 027067820365
Fitment
- 1994–2003 Ford F-Series / Excursion with 7.3L Power Stroke Diesel (VIN F)
- 1994–2003 International/Navistar T444E 7.3L V8 (various medium-duty applications)
- Bore / Oversize: 4.120" (+.010" over)
Cross Reference & IDs
- MAHLE: S41768.010 (aka 41768.010)
- Marketing/short description often shown as: 14420N-010 “NAVI 7.3L Diesel V8 Ring 1 Cyl Chrome Ring Set”
- UPC/GTIN: 027067820365
What’s Included
- One complete ring pack for a single piston (compression + oil rings)
Install Notes
- Verify cylinder finish (plate-honed to spec) and end gaps per MAHLE instructions
- Stagger ring gaps; check ring side clearance in grooves
FAQ
Is this for the entire engine?
No. This is a single-cylinder ring set. Order 8 sets for a full V8.
Will these fit my 1999 F-250 7.3 Power Stroke?
Yes—fits all 1994–2003 7.3L Power Stroke engines (VIN F) at +.010" overbore.
What’s the bore size?
4.120" (0.010" over standard).
Are these chrome or moly?
The top ring is plasma-moly/ductile iron with a chrome-faced design for durability and seating.
Do I need to check end gap?
Yes—always measure and set end gaps to your build’s spec (street/tow vs. performance).
