Pioneer Cables FWS-12 Flywheel Shim

Pioneer Flywheel Shim for Precise Flywheel Spacing

The Pioneer Cables FWS-12 flywheel shim restores the correct spacing after a machined flywheel is reinstalled. Built from stamped steel to exact measurements, it supports proper flywheel engagement and a clean, accurate repair on a wide range of Ford, Honda, Lincoln, and Mercury applications.

• Inside diameter: 1.5 in.
• Outside diameter: 4.0 in.
• Width: 0.025 in. for precise flywheel spacing
• Stamped steel construction for consistent fit
• Direct replacement style for machined flywheel reinstallation
• Part number: FWS-12

Detailed Fitment and Application

Use this flywheel shim when the flywheel has been machined and the original spacing must be restored to maintain proper clutch and starter engagement. The Pioneer Cables FWS-12 is listed for applications including Fits 2003-2004 Honda Civic, N/A and Fits 1999-2003 Ford F-250 Super Duty, N/A, along with many Ford E-Series, F-Series, Lincoln Continental, and Mercury passenger car applications. This part cross-references 15134 and 691736 for the same application.

Common search terms for this part include Ford F-350 flywheel shim, Honda Civic flywheel spacer, and Pioneer Cables FWS-12 replacement shim.

What This Part Helps Correct

• Incorrect flywheel spacing after machining
• Poor flywheel-to-clutch engagement
• Starter engagement issues caused by altered flywheel depth
• Fitment mismatch when replacing a machined flywheel
• Repair inconsistency from non-matching shim dimensions

Installation Notes and Tips

Verify the flywheel type and confirm the required shim dimensions before installation. Several Ford truck and van applications note: do not use with Dual Mass flywheel. Match the 0.025 in. width, 4.0 in. outside diameter, and 1.5 in. inside diameter to the service specification before reassembly.

Quality Assurance

Pioneer Cables manufactures this shim from high-quality stamped steel and machines it to exact measurements for consistent service fit. The FWS-12 is built to support accurate flywheel spacing during repair work on confirmed applications.