Diamond T Torque Converter for Ford (1997-08) F-150 & (03-06) Expedition with 5.4L Gas, 4R70 & 4R75, 4x4

The Diamond T Torque Converter for Ford (1997-08) F-150 & Expedition with 5.4L Gas, 4R70 & 4R75, 4x4 – FS974R is a purpose-built, low-stall lockup replacement for hard-working 5.4L 4x4 trucks and SUVs. Based on a proven 4R70/4R75 lockup converter layout with a milled-flats hub, it is engineered to restore smooth takeoff, consistent lockup, and dependable performance on vehicles that see real towing and work duty.

Each converter is remanufactured and precision balanced to reduce vibration and stress on the transmission, making it a smarter choice than a worn or unknown-core unit. The low-stall (~1600 RPMs) characteristics and lockup clutch design help control heat and maintain good drivability with trailers, loads, or larger tires—key factors in long-term 4R70/4R75 survival in 5.4L 4x4 applications.

With its OEM-style milled-flats hub and factory-style mounting pattern, FS974R installs as a direct-fit replacement when matched to the correct converter code and application. Backed by a lifetime warranty and branded by Diamond T, it delivers the durability and confidence expected from a heavy-duty torque converter solution—American Made, Because It Matters.

Fitment:
1997 - 2008 F-150 5.4L 4x4
2003 - 2006 Expedition 5.4L 4x4

Details:
Diameter: 12-3/4"
Spline: 31
Pilot: 1.375", 3/4" Long
Hub: Milled Flats
Mounting: 11-3/8" Bolt Circle, 4 Studs
ID Code: 71A, 84A, 99A
Stall: ~1600 stall

Replaces OE:
8L3Z-7902-CRM
8L3Z7902CRM