5x120 to 5x114.3 Wheel Adapters 12mm for Ford Lincoln Chevy GMC Cadillac Jeep, 78.1mm Hub Bore, Set of 4

5x120 to 5x114.3 Wheel Adapter Plates – 12 mm, 78.1 mm Bore, Set of 4

This BDFHYK set is listed as a thin 5x120 vehicle-side to 5x114.3 wheel-side conversion plate. Each plate is approximately 12 mm thick with a 78.1 mm center bore. The design changes the mounting pattern while moving the wheel outward by approximately 12 mm per side, making it relevant to selected wheel-conversion or inner-clearance projects where a thick bolt-on adapter would create too much outward movement.

The plates are listed for selected Ford, Lincoln, Chevrolet, GMC, Cadillac, Jeep, and related applications, but the brand or model name is not enough to confirm compatibility. Bolt pattern, hub diameter, wheel center bore, hardware diameter, thread pitch, lug-seat style, and usable thread engagement must all match the actual vehicle and wheel.

What This Thin Adapter Changes

• Vehicle-side bolt pattern: 5x120.
• Wheel-side bolt pattern: 5x114.3.
• Thickness: approximately 12 mm per side.
• Center bore: 78.1 mm as listed.
• Hardware: wheel bolts or studs are not included.

Common Fitment Scenarios

The 12 mm thickness may be useful when a wheel conversion is required but outer fender clearance is limited. It may also create modest additional space between the inner wheel or tire and a suspension or brake component. Moving the wheel outward reduces effective offset by approximately 12 mm, so tire-to-fender and liner clearance still need to be checked at full steering lock and suspension compression.

Hardware and Thread Engagement

Do not assume the original wheel bolts or studs are automatically suitable. Compatible extended hardware may be required to maintain adequate thread engagement after adding a 12 mm plate. The hardware diameter, thread pitch, shank length, lug-seat profile, and wheel-hole design must match the vehicle and wheel. Insufficient engagement, incorrect seat shape, or bottoming hardware can prevent proper clamping.

Fitment Checks Before Ordering

• Verify the vehicle-side mounting pattern is 5x120.
• Verify the intended wheel-side pattern is 5x114.3.
• Confirm the vehicle hub fits the listed 78.1 mm bore.
• Confirm the wheel center bore and mounting face are compatible with the plate.
• Measure wheel offset, brake clearance, suspension clearance, fender space, and tire width.
• Determine the exact extended hardware and minimum usable thread engagement required.

Installation and Maintenance

Clean the hub and wheel mounting faces until both are flat and free of rust, paint buildup, or debris. Install only with correctly specified hardware and tighten in a star pattern using a calibrated torque wrench. Recheck clearance before driving, then recheck torque after the initial driving period. Never stack adapter plates or combine them with another spacer. Inspect the plates, hardware, hub, and wheel mounting surfaces whenever the wheels are removed.

This thin conversion plate should be selected only after the complete mounting system has been measured; it is not a universal fitment solution.