Caterpillar 1084749 Flywheel Housing Sae 1 Driver Side

Product Description

The CATERPILLAR 1084749 is an aftermarket aluminum flywheel housing designed for heavy-duty diesel applications using the Caterpillar 3406E engine. It shields the flywheel from external debris during engine operation and provides structural mounting for the starter motor. The housing meets SAE 1 bolt pattern specs, positions the starter on the driver side at the 9 o'clock location, and features angled motor mounts. This is not an OEM part — it is an aftermarket replacement manufactured to fit OEM specifications. Each unit is sold individually. Licensed HVAC and diesel technicians familiar with heavy-duty drivetrain work should verify OE numbers before installation, as multiple fitment options may exist for a given year, make, and model.

This flywheel housing is designed for use in heavy-duty truck applications powered by the Caterpillar 3406E diesel engine, including Kenworth platforms. The angled motor mount configuration and driver-side starter position at 9 o'clock make it specific to a defined engine-to-transmission interface. It is intended for shops and fleet service operations performing engine rebuilds, flywheel replacements, or drivetrain overhauls on Class 8 equipment. Always confirm the OE part number match before ordering, as fitment can vary by truck year and transmission configuration.

Key Features

• Aluminum construction — lightweight and corrosion-resistant for heavy-duty service environments
• SAE 1 bolt pattern for proper engine-to-transmission alignment
• Starter location: driver side, 9 o'clock position
• Angled motor mounts to match 3406E engine configuration
• Replaces OE part numbers 1084749, 1302802, and 3044150
• Aftermarket replacement — not OEM; sold individually

Compatibility

Replaces OE part numbers 1084749, 1302802, and 3044150. Designed for Kenworth trucks equipped with the Caterpillar 3406E diesel engine. Verify OE numbers against your specific year and model before installation, as multiple fitment options may apply.

Installation Notes

Installation should be performed by a qualified diesel mechanic or heavy-duty drivetrain technician. Shut down and lock out the engine before beginning any flywheel housing removal or installation. Follow IFGC and manufacturer torque sequencing guidelines for bellhousing fasteners using the appropriate hand tools and torque wrench. Confirm starter alignment and motor mount angles match the existing drivetrain configuration before final assembly.

Technical Specifications

• Material: Aluminum
• Bolt Pattern: SAE 1
• Starter Location: Driver Side, 9 O'Clock
• Motor Mount Style: Angled
• Truck Class: Heavy Duty
• Quantity: Sold Individually
• Part Type: Aftermarket Replacement (Not OEM)

Standard Information

• Brand: CATERPILLAR
• Manufacturer Part Number: 1084749