Platinum Driveline GM 7.0L 7.2L 8.1L Engine Flywheel OE# 12574404

Automotive flywheel with central hub design.

GM Flywheel 12574404 | 7.0L / 7.2L / 8.1L Engine

Name: GM Flywheel 12574404 | 7.0L / 7.2L / 8.1L Engine
Brand: Platinum Driveline
SKU: 168401
Availability: InStock

$295.00

SKU: 168401 Categories: Truck Flywheels - Medium Duty & Semi Truck, VIEW ALL PRODUCTS Brand: Platinum Driveline

GM FLYWHEEL 12574404 | 7.0L / 7.2L / 8.1L ENGINE

Restore your vehicle’s drivetrain performance with this premium Platinum Driveline heavy-duty flywheel. Specifically engineered for GM 7.0L, 7.2L, and 8.1L engines, this component is designed to meet the rigorous demands of both commercial automotive fleets and heavy-duty equipment. Manufactured to exacting OEM specifications, it ensures consistent torque transfer and long-term durability in high-stress environments.

Verified Casting & Part Numbers

OE#: 12574404

Technical Specifications

Engine Application: GM 7.0L / 7.2L / 8.1L
Bore Diameter: 6-inch bore size
Disc Outside Diameter: 13″
Ring Gear Teeth: 197
Mounting Holes: 6
Locating Holes: 0
Pilot Bearing #: 305SS
Condition: New Aftermarket (No Core Charge)

Expert Installation & Field Note

Drawing from our shop experience specializing in heavy-duty drivetrains since 1985, the GM 8.1L and related big-block platforms require a perfectly clean crankshaft flange to prevent runout. Since this unit has 0 locating holes, technician precision during the initial 6-bolt mounting is vital to ensure proper centering. We recommend using a star-pattern torque sequence to maintain even pressure across the 6-inch bore interface. Always verify your starter drive matches the 197-tooth ring gear configuration before completing the installation.

CRITICAL: Verify Specifications

Please confirm your original casting number and engine model match these specifications. Accurate 6-inch bore size and mounting hole alignment are essential for proper fitment and safe vehicle operation.

Shipping Note: All flywheel orders are drop-shipped directly to ensure the fastest delivery. We are not responsible for carrier delays and cannot guarantee that overnight orders will ship the same day.

Note: Prices shown are for online orders only.