Designed to be compatible with 1941 to 1956 Buick vehicles, Rotors have a 11.88\" and are engineered to fit 15\"-up wheels, Four piston calipers have a Type III gray anodized finish for improved looks and added protection, Designed to bolt on the OEM drum spindles, Can be used with either manual or power boost master cylinders Wilwood 140-12321 FDL 11.88 Inch Front Disc Brake Kit, 1941-56 Buick Sku # 83514012321 Mfr. Part # 140-12321 Condition New Brand Wilwood Sold Each Details
Wilwood\'s new FDL Pro-Series Front 1 Piece Hub and Rotor Kits for Buick vehicles 1941 to 1956, offer disc brake upgrade solutions for OEM Drum spindles. A completely new kit design, featuring a large 11.88\" x 1.29\" rotor with a 5 x 5\" bolt circle pattern and hub assembly . Based on the venerable forged billet Dynalite caliper, these versatile kits are easily optioned to suit the braking requirements and style preferences for a daily driver or the most discriminating show enthusiast. Intended vehicle applications require no modifications for installation, and provide plenty of clearance inside popular 15\" wheels. FDL 1 piece kits can be used with either manual or power boost master cylinders. Kits are complete with calipers, rotors and, hub assembly brackets and hardware. Requires purchase of additional brake line kit shown below.
Specs Sold in Quantity Kit GTIN Code 889545016291 MFG. Part # 140-12321 Position Front Wheel Bolt Pattern (in.) 5x4.75 in. Wheel Bolt Pattern (mm) 5x120.65 mm Rotor Diameter 11.88 Inch Rotor Type Vented Caliper Pistons Four Caliper Finish Anodized Parking Brake Provision No Minimum Recommended Wheel Diameter 15 Inch Rotor Shape Round Hardware Included Yes Rotor Style Plain Face Spindle Type Factory Drum Spindle Rotor Thickness 1.29" Thread Pitch 1/2"-20 Mount Type Lug Total Piston Area 4.8 sq. in. Piston Type Stainless Pad Area 6.36 sq. in. Pad Volume 2.1 cu. in. Brake Pad Compound BP-10 Caliper Type Lug Rotor Finish Natural Rotor Material Type Iron Bedded No Balanced No Front Rotor Included Yes Front Rotor Diameter 11.88 Inch Front Caliper Included Yes Rear Caliper Included No Front Spindles Included No Master Cylinder Included No Brake Booster Included No Brake Lines Included No Brake Hoses Included No Ford Bearing End Style No Value Caliper Color Gray Caliper Material Type Forged Aluminum Rear Rotor Included No Bolt Pattern 5 on 5" Color Gray Front Caliper Piston Quantity 4 Front Caliper Finish Anodized Reviews Yes Rated by Bill on May 26, 2025
Summary: It stops very nice. Nice complete kit
Yes, I recommend this product.
Easy install, High Quality parts! Rated by Shawn on August 01, 2023
Summary: Wow! Very complete kit, very easy install!
Yes, I recommend this product.
Excellent brakes Rated by Ian on April 04, 2021
Summary: Great service from Speedway motors, substantial kit, well worth the money
Yes, I recommend this product.
Excellent quality Rated by Byron Y on September 14, 2017
Summary: Wilwood Brakes, what's not to like. No fitnent issues at all on my 1950 Buick Roadmaster Rivera Sedan.
Yes, I recommend this product.
Related Items / Suggested Parts Wilwood 220-12296 16 Inch Flexline Front Brake Line Kit, 1941-56 Buick Wilwood 290-0632 570 Brake Fluid, 12 oz Bottle Tech Support We\'re here to help before and after your purchase. If you have a question or need assistance with one of our products, please contact us through Messaging and a knowledgeable Speedway Motors team member will be happy to help. About Speedway Motors is America’s Oldest Speed Shop® and has been a trusted source for specialty rodding and racing products and friendly expert advice for more than 74 years. Founded in 1952 by “Speedy” Bill Smith – a racer and street rodder himself – Speedway has grown from a one-man operation to become the world’s largest manufacturer, distributor and retailer of street rod and racing products. Our industry-leading fast delivery is the result of same-day shipping from our state-of-the-art, centrally located 500,000 sq. ft. headquarters. Speedway’s size offers customers unmatched product selection and low pricing, while our excellent technical support and customer service have made us a recognized leader in the rodding and racing industries.
