What is included in this Mahle piston set?

This set includes eight cast pistons, each measuring 0.040 inches undersize. It also comes with pre-mounted piston rings, wrist pins, and retaining clips, ready for installation.

What does '0.040 inch undersize' mean for these pistons?

This means the pistons are manufactured to be 0.040 inches smaller in diameter than the standard factory size. This is typically used when the engine cylinders have been bored out to a larger size during a rebuild.

Are these pistons compatible with all 7.3L IDI Turbo Diesel engines?

This specific set is designed for 1994 model year Ford F-250, F-350, F-59 Commercial Stripped Chassis, and F-Super Duty trucks equipped with the 7.3L IDI Turbo Diesel V8 engine. Always confirm your vehicle's exact specifications.

1994 Ford F-250 Piston Set | Mahle OE

Name: Mahle OE NAVI 7.3L IDI Turbo Dsl V8 T .040 w/ PC Piston Set (Set of 8)
Brand: Mahle OE
SKU: mahle-oe-mahle-oe-navi-7-3l-idi-turbo-dsl-v8-t-040-w-pc-piston-set-set-of-8-t14-53496
Price: 876.17 USD
Availability: BackOrder

Mahle OE NAVI 7.3L IDI Turbo Dsl V8 T .040 w/ PC Piston Set (Set of 8)

$876.17

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Fits 1994 Ford F-250. Mahle OE cast piston set, 0.040 inch undersize, includes rings, pins, and clips for easier installation.

Key Features

Fits 1994 Ford F-250, F-350, F-59 Commercial Stripped Chassis, and F-Super Duty.
Set includes eight cast pistons, each 0.040 inch undersize.
Pistons come with pre-mounted piston rings, wrist pins, and clips for easier installation.
Features compensated ring grooves for proper ring loading and oil control.
Expansion-controlled design reduces engine noise, wear, and emissions.
OE quality manufactured to meet original equipment specifications.

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Will this fit your vehicle?

Product Details

When you're rebuilding the engine in your 1994 Ford F-250, F-350, F-59 Commercial Stripped Chassis, or F-Super Duty, Mahle OE offers a well-built piston set designed to meet original equipment specifications. This set includes eight cast pistons, each measuring 0.040 inches undersize, along with pre-mounted piston rings, wrist pins, and clips. Having the rings, pins, and clips already installed means you can get straight to work on your engine build, saving you valuable time and effort.

Mahle pistons are known for their OE quality, meaning they are manufactured to the same standards and feature the same technologies as the original parts. This includes compensated ring grooves, which ensure proper ring loading and help maintain excellent oil control. The expansion-controlled design allows for tight fitting clearances, which helps reduce engine noise, minimize wear, and lower emissions, all while improving overall oil management. Mahle is a major OE piston manufacturer globally, so you're getting parts from a company with extensive experience in engine component production.

This set is specifically for the 7.3L IDI Turbo Diesel V8 engine. Please note that these pistons are not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper fitment and assembly procedures.