Keep your rear disc brake caliper properly located and sliding on its mount with the Dorman - First Stop Disc Brake Caliper Bolt HW5056. This guide bolt/pin threads into the caliper mounting bracket to hold the caliper in position and let it move as the pads wear. It drops in as a direct-fit replacement for many rear-brake General Motors applications, including the 1992-1993 and 1995-1999 Buick Riviera, 1994-2005 Buick Park Avenue, 1994-1996 Buick Regal, 2000-2005 Buick LeSabre, 1993 Cadillac Allante, 1994-2005 Cadillac DeVille, 1992-2002 Cadillac Eldorado, 1992-2004 Cadillac Seville, 1996-1999 Chevrolet Lumina, 1995-1999 Chevrolet Monte Carlo, 1995-1999 and 2001-2003 Oldsmobile Aurora, 1994-1997 Oldsmobile Cutlass Supreme, 1992 Oldsmobile Toronado, 2000-2005 Pontiac Bonneville and 1994-1996 Pontiac Grand Prix (engine listed as All). See the Buyer's Guide tab for the full application list.
- Steel construction: made from quality materials for reliable service.
- Direct-fit design: engineered to drop in like the original bolt on the listed vehicles.
- Handy replacement: a dependable substitute when the original bolt is missing or worn out.
- Trusted support: backed by product experts in the United States and more than a century of automotive experience.
If a corroded or seized guide bolt is behind uneven pad wear or a binding caliper, replacing it helps restore proper caliper movement. Sold individually; quantity per application varies — most listed vehicles use 2, while the 1992 Oldsmobile Toronado uses 4. Country of origin: China.
Interchange: 18K207 · H919589 · H15041 · 5056K · H5056 · H5056-2 · H50562 · 15031 · 15056 · F129652S · H129652S · H15056 · Manufacturer part number HW5056.
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
What does this caliper bolt do?
It threads into the rear caliper mounting bracket to hold the disc brake caliper in position and allow it to slide as the brake pads wear.
How many do I need for my vehicle?
Quantity varies by application. Most listed vehicles use 2, while the 1992 Oldsmobile Toronado uses 4. This listing is for one bolt, so order the quantity your application requires.
What is HW5056 made of?
It is made of steel from quality materials for reliable service.
What are signs this caliper bolt may need replacing?
A corroded, seized, or worn guide bolt can let the caliper bind or wear pads unevenly. Diagnose the cause first, since these signs can have other sources.
Which vehicles does this bolt fit?
It is a direct-fit replacement for many rear-brake GM models, including the Buick Park Avenue, Cadillac DeVille and Seville, and Pontiac Bonneville. See the Buyer's Guide tab for the full list.
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