Keep your front brakes stopping smoothly with the Raybestos R-Line Disc Brake Rotor 56631R, a front vented rotor developed from OE samples for dependable everyday braking. It installs as a direct-fit replacement that matches the original part's fit, form, and function on 1997-2005 Buick Century, 1998-2005 Buick LeSabre, 1997-2004 Buick Regal, 1999 Buick Riviera, 1997-2005 Chevrolet Venture, 1998-1999 Oldsmobile 88, 1998-2002 Oldsmobile Intrigue, 1998-1999 Oldsmobile LSS, 1997-1998 Oldsmobile Regency, 1997-2004 Oldsmobile Silhouette, 1998-2005 Pontiac Bonneville, 1997-2003 Pontiac Grand Prix, 1999-2005 Pontiac Montana, and 1997-1999 Pontiac Trans Sport — see the Buyer's Guide tab for the full application list.
- G3000-qualified cast iron: developed from OE samples to deliver OE fit, form, and function.
- SAE tensile strength: meets the SAE standard for structural integrity and maximum service life.
- Low runout & thickness variation: small lateral runout for less pedal pulsation, less brake noise, and extended pad life.
- Mill balanced & 100% validated: helps minimize thickness variation for reduced vibration and smoother stopping.
This conventional, vented rotor measures 10.94 in (277.9 mm) outside diameter with 5 lug holes and a non-directional braking surface, so it can install on either side. Discard thickness is 1.208 in (30.7 mm). The ABS tone ring is not included. Sold individually; for even, balanced braking, replacing both rotors on the axle together as a matched pair is recommended. Country of origin: China. Manufacturer part number 56631R.
