Description
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.
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.
