Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSFORD2021EDGE SE, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 256 (ENGINE - 6.7L POWER STROKE DIESEL)SPECIFICATIONSPISTON
2021 Ford Edge SE, 4WD
Section 256 (Engine - 6.7L Power Stroke Diesel): Specifications: Piston
2021 Ford Edge SE, 4WDSECTION Piston
WARNING: This page is about a different car, the 2019 Ford F-550 Super Duty, 2019 Ford F-450 Super Duty, 2019 Ford F-350 Super Duty, and 2019 Ford F-250 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
| Item | Specification |
|---|---|
| Piston Diameter - standard size (major diameter) | 3.8952 -3.8958 in (98.939 -98.953 mm) |
| Piston Diameter - 0.50 mm (0.019 in) oversize (major diameter) | 3.9149 -3.9155 in (99.439 -99.453 mm) |
| Piston Diameter - 1.00 mm (0.039 in) oversize (major diameter) | 3.9346 -3.9352 in (99.939 -99.953 mm) |
| Piston-to-cylinder bore clearance | 0.002 -0.003 in (.047 -.079 mm) |
| Piston pin bore diameter | 1.378 -1.379 in (35.013 -35.018 mm) |
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.