Mahle 2243851075MM .75mm Piston Set MaxxForce 7 for 08-10 Ford Powerstroke 6.4L

Vehicle Fitment

• 2008-2010 Ford F-250 Super Duty (6.4L Power Stroke V8 Diesel)
• 2008-2010 Ford F-350 Super Duty (6.4L Power Stroke V8 Diesel)
• 2008-2010 Ford F-450 Super Duty (6.4L Power Stroke V8 Diesel)
• 2008-2010 Ford F-550 Super Duty (6.4L Power Stroke V8 Diesel)
• Navistar MaxxForce 7 6.4L Diesel (commercial/industrial applications)

Fitment Notes

• Piston set only -- rings NOT included (order separately or use 224-3851WR-0.75MM for pistons with rings)
• 0.75MM overbore -- requires block to be machined to 3.900" / 99.05mm bore
• Set of 8 pistons -- sold as complete engine set only
• Designed for the Navistar MaxxForce 7 engine -- commonly used in 6.4L Powerstroke to eliminate stock piston cracking
• Consult your machine shop/engine builder to confirm fitment in your application
• Stock stroke: 4.130"

Features

• MAHLE Original OE-quality replacement piston
• Cast aluminum construction
• Dish top with single valve relief
• Compensated ring grooves for proper ring loading and oil control
• Expansion-controlled design for tight fitting clearances
• GRAFAL anti-friction skirt coating reduces drag, scuffing, and bore wear
• Eliminates stock piston cracking issues common on 6.4L Powerstroke

Specifications

• Part Number: 224-3851-0.75MM (2243851075MM)
• Engine: Navistar MaxxForce 7 / Ford 6.4L Power Stroke V8 Diesel
• Piston Material: Cast aluminum
• Piston Style: Dish with single valve relief
• Bore: 3.900" / 99.05mm (+0.75mm overbore)
• Stroke: 4.130" (stock)
• Skirt Coating: GRAFAL (graphite impregnated resin)
• Rings Included: No
• Quantity: Set of 8
• UPC: Verify at time of order

Included Components

• 8x Mahle OE cast aluminum pistons (0.75mm overbore)
• 8x Wrist pins
• 8x Pin clips/locks

Product Description

The Mahle 2243851075MM is a set of 8 OE-quality replacement pistons in 0.75mm overbore size for the Navistar MaxxForce 7 6.4L diesel V8 used in the 2008-2010 Ford F-250, F-350, F-450, and F-550 Super Duty trucks. These cast aluminum dish-top pistons with single valve relief feature MAHLE's compensated ring grooves for proper ring loading and oil control, expansion-controlled design for tight fitting clearances that reduce engine noise and wear, and GRAFAL anti-friction skirt coating to minimize drag and bore wear. The MaxxForce 7 piston design is commonly used by engine builders in 6.4L Powerstroke applications to eliminate the cracking issues found with the original stock pistons.

This is a piston-only set -- rings are not included. For a complete piston and ring set, order Mahle 224-3851WR-0.75MM instead. The 0.75mm oversize requires the block to be machined to 3.900" (99.05mm) bore. Sold as a complete set of 8 only. Always consult your machine shop or engine builder to confirm proper fitment, bore dimensions, and clearances for your specific application. MAHLE is one of the world's largest OE piston manufacturers, producing replacement pistons machined to the same tight tolerances as factory-installed components.