Centric 143.63021

Centric 143.63021 is a 20-piece repair kit for two front four-piston Kelsey-Hayes brake calipers. The package is cataloged as an axle set, covering the left and right calipers on one axle. Caliper pistons are not included.

Application / fitment

The kit appears in classic Ford, Mercury, Dodge and Plymouth disc-brake systems using the corresponding fixed Kelsey-Hayes calipers with a 1.625-inch bore. Confirm fitment by caliper type and interchange number, not by vehicle model alone.

• 1965–1967 Ford Mustang with original four-piston front disc calipers
• selected 1967 Ford Fairlane, Falcon and Ranchero applications
• selected 1967 Mercury Comet and Cougar applications
• 1965–1972 Dodge Dart with the corresponding disc-brake system
• 1964–1969 Plymouth Barracuda and 1965–1972 Valiant with matching calipers
• selected 1970–1972 Plymouth Duster and 1971–1972 Scamp applications

Rebuild the calipers in clean conditions after inspecting the pistons, cylinder bores and housings. New seals will not correct deep corrosion, pitting or a cracked caliper. Bleed the system, check for leakage and verify equal operation on both wheels after assembly.

Technical information

• part type: brake-caliper repair kit
• position: front axle
• caliper type: fixed four-piston Kelsey-Hayes
• caliper bore: 1.625 in / 41.28 mm
• package coverage: left and right calipers
• catalog component count: 20
• pistons included: no
• interchanges: Raybestos WK518, Dorman D46457
• Ford numbers: C5ZZ-2221-A, C7ZZ-2221-A
• UPC: 805890072522
• sale unit: 1 front-axle set