What is the main function of main bearings in an engine?

Main bearings support the crankshaft within the engine block. They allow the crankshaft to rotate smoothly while handling the significant forces generated during combustion and power delivery, preventing direct metal-on-metal contact.

Why is the 25mm bearing size important for my 6.4L diesel?

The 25mm journal size is specific to the crankshaft design of the 6.4L twin-turbo diesel engine. Using the correct size bearing ensures proper clearance and oil film thickness, which is essential for supporting the crankshaft under high torque and load.

What else might I need when installing main bearings?

When replacing main bearings, it's recommended to also inspect and potentially replace the crankshaft thrust bearing. You will also need engine assembly lubricant to properly coat the bearings and crankshaft journals before installation, and new main bearing cap bolts are often advised.

Clevite Ford / Navistar V8 6.4L Twin Turbo Diesel 2008-2009 Main Bearing Set

Specifications

Brand: Clevite
Part #: MS2269P25MM
UPC: 027067706027

Clevite Ford / Navistar V8 6.4L Twin Turbo Diesel 2008-2009 Main Bearing Set

Name: Clevite Ford / Navistar V8 6.4L Twin Turbo Diesel 2008-2009 Main Bearing Set
Brand: Clevite
Price: 129.06 USD
Availability: InStock

$129.06

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Fits 2008-2010 Ford F-250 Super Duty. Clevite main bearing set for the 6.4L twin-turbo diesel engine. Essential for engine rebuilds.

Key Features

Fits 2008-2010 Ford F-250 Super Duty, 2008-2010 Ford F-350 Super Duty, and 2008 Ford F-450 Super Duty.
Features a 25mm main bearing design critical for the 6.4L V8 twin-turbo diesel engine.
Constructed with a multi-layer composite material to handle high diesel engine loads.
Helps reduce friction and wear on the crankshaft for improved engine longevity.
Essential component for any bottom-end engine rebuild on compatible diesel trucks.

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Fits these vehicles

Ford F-250 Super Duty 2008-2010
Ford F-350 Super Duty 2008-2010
Ford F-450 Super Duty 2008

Product Details

The 25-millimeter main bearing design in this Clevite set is crucial for the proper function of your 2008-2010 Ford F-250 Super Duty's V8 6.4L twin-turbo diesel engine. These bearings sit between the crankshaft and the engine block, supporting the crankshaft and allowing it to spin freely while handling immense loads. When you're rebuilding the bottom end of your diesel, replacing these main bearings is a fundamental step to ensure long-term engine health and performance.

Clevite builds these main bearings with a multi-layer composite material designed to withstand the high pressures and temperatures common in heavy-duty diesel applications. This well-built construction helps reduce friction and wear on your crankshaft, which is vital for keeping that powerful 6.4L engine running smoothly. Installing a fresh set of main bearings is part of ensuring your engine can handle the demands of towing or heavy work, providing a solid foundation for your rebuild.

This set is specifically designed for the 6.4L Power Stroke diesel found in your Super Duty truck. Make sure to follow the manufacturer's installation instructions carefully, as proper bearing clearance and torque are critical for engine longevity.