Carlson 7821 Disc Brake Caliper Piston - Front or Rear
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Carlson

Carlson 7821 Disc Brake Caliper Piston - Front or Rear

Brand Carlson 7821
Position Rear
Fits Cadillac, Ford, Mercury, Buick, Chevrolet, GMC, Isuzu, Saab, and Oldsmobile · 111 vehicles

Brake system component. Uses brake fluid pressure to force pads against the rotor.

Caliper piston. Vital hardware for converting hydraulic pressure into stopping force.

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Carlson Disc Brake Caliper Piston 7821

The Carlson Disc Brake Caliper Piston 7821 is a brake hydraulic component that transfers brake fluid pressure into clamping force at the caliper. It is used in front and rear brake applications across a wide range of Cadillac, Ford, Chevrolet, GMC, and related vehicles.

Key Features

  • Disc brake caliper piston for brake hydraulic service
  • Uses brake fluid pressure to push the brake pads against the rotor
  • Phenolic piston construction on listed applications
  • Compatible with multiple OE-style caliper configurations
  • Part number 7821 for application matching and catalog lookup

Product Details

Carlson Disc Brake Caliper Piston 7821 is part of the brake hydraulics system and is selected by vehicle application, caliper design, and position. The Carlson disc brake caliper piston line is built for service work where the original piston has worn, cracked, or no longer moves smoothly in the caliper bore. This part number 7821 appears in front and rear brake applications on vehicles such as Cadillac CTS, Cadillac STS, Ford Taurus, Chevrolet Trailblazer, GMC Envoy, and Ford Mustang.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Vehicle Fitment

  • Fits 2005-2011 Cadillac STS, rear; except performance brakes; phenolic piston; D922
  • Fits 2008-2009 Ford Taurus, front; phenolic piston; D1070
  • Fits 2008-2009 Ford Taurus X, front; phenolic piston; D1070
  • Fits 2008-2009 Mercury Sable, front; phenolic piston; D1070
  • Fits 2005-2008 Cadillac STS, front; except performance brakes; phenolic piston; D921
  • Fits 2006-2007 Cadillac CTS, rear; except performance brakes; phenolic piston; D922
  • Fits 2006-2007 Cadillac CTS, front; except performance brakes; phenolic piston; D921
  • Fits 2003-2007 Cadillac CTS, rear; phenolic piston; D922
  • Fits 2003-2007 Cadillac CTS, front; phenolic piston; D921
  • Fits 2005-2007 Ford Five Hundred, front; phenolic piston; D1070
  • Fits 2005-2007 Ford Freestyle, front; phenolic piston; D1070
  • Fits 2005-2007 Mercury Montego, front; phenolic piston; D1070
  • Fits 2004-2005 Buick Rainier, front; phenolic piston; D882
  • Fits 2003-2005 Chevrolet SSR, front; phenolic piston; D882
  • Fits 2002-2005 Chevrolet Trailblazer, front; phenolic piston; D882
  • Fits 2002-2005 Chevrolet Trailblazer EXT, front; phenolic piston; D882
  • Fits 2002-2005 GMC Envoy, front; phenolic piston; D882
  • Fits 2002-2005 GMC Envoy XL, front; phenolic piston; D882
  • Fits 2004-2005 GMC Envoy XUV, front; phenolic piston; D882
  • Fits 2003-2005 Isuzu Ascender, front; phenolic piston; D882
  • Fits 2005 Saab 9-7x, front; phenolic piston; D882
  • Fits 2004 Chevrolet Silverado 1500, rear; D975; disc brake caliper piston
  • Fits 1999-2004 Ford Mustang, front; phenolic piston; D804
  • Fits 2004 GMC Sierra 1500, rear; D975; disc brake caliper piston
  • Fits 2002-2004 Oldsmobile Bravada, front; phenolic piston; D882
  • Fits 2002-2003 Chevrolet Avalanche 2500, rear; phenolic piston; D834
  • Fits 2003 Chevrolet Silverado 1500, rear; 4 wheel steering; 330mm rotors; phenolic piston; D834
  • Fits 2003 Chevrolet Silverado 1500 HD, rear; 4 wheel steering; 330mm rotors; phenolic piston; D834
  • Fits 2003 GMC Sierra 1500, rear; 4 wheel steering; 330mm rotors; phenolic piston; D834
  • Fits 2003 GMC Sierra 1500 HD, rear; 4 wheel steering; 330mm rotors; phenolic piston; D834
  • Fits 2002 Cadillac Escalade, rear; 4 wheel steering; phenolic piston; D834
  • Fits 2000-2002 Chevrolet Suburban 1500, rear; dual piston calipers; phenolic piston; D834
  • Fits 2002 Chevrolet Tahoe, rear; phenolic piston; D975
  • Fits 2002 GMC Yukon, rear; phenolic piston; D834
  • Fits 2000-2002 GMC Yukon XL 1500, rear; phenolic piston; D834
  • Fits 2000-2001 Chevrolet Tahoe, rear; phenolic piston; D834
  • Fits 2000-2001 Chevrolet Tahoe, rear; limited slip axle; phenolic piston; D834
  • Fits 2000-2001 GMC Yukon, rear; limited slip axle; phenolic piston; D834

Common Repair Uses

  • Brake piston wear or scoring inside the caliper
  • Uneven pad contact caused by piston movement issues
  • Brake drag from a piston that does not retract properly
  • Hydraulic brake service on front or rear calipers
  • OE-style replacement during caliper rebuild work

Installation Notes

Match the caliper design, position, and notes exactly before installation. Confirm whether the vehicle uses a phenolic piston, dual piston caliper, 4 wheel steering, limited slip axle, or 330mm rotor configuration where listed. Clean the caliper bore thoroughly, inspect seals and related hydraulic parts, and verify smooth piston movement after assembly.

Quality Assurance

Carlson brake hydraulics parts are cataloged for application-specific service work, with the piston selected to match the listed OE-style brake configuration. Use the part number 7821 and the vehicle notes to confirm the correct application before repair.

Related reading

This part fits 111 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelBody TypeDrive TypePositionNotes
2011CadillacSTS———RearExcept Performance Brakes; Phenolic Piston; D922
2010CadillacSTS———RearExcept Performance Brakes; Phenolic Piston; D922
2009CadillacSTS———RearExcept Performance Brakes; Phenolic Piston; D922
2009FordTaurus———FrontPhenolic Piston; D1070
2009FordTaurus X———FrontPhenolic Piston; D1070
2009MercurySable———FrontPhenolic Piston; D1070
2008CadillacSTS———RearExcept Performance Brakes; Phenolic Piston; D922
2008CadillacSTS———FrontExcept Performance Brakes; Phenolic Piston; D921
2008FordTaurus———FrontPhenolic Piston; D1070
2008FordTaurus X———FrontPhenolic Piston; D1070
2008MercurySable———FrontPhenolic Piston; D1070
2007CadillacCTS———RearExcept Performance Brakes; Phenolic Piston; D922
2007CadillacCTS———FrontExcept Performance Brakes; Phenolic Piston; D921
2007CadillacCTS———RearPhenolic Piston; D922
2007CadillacCTS———FrontPhenolic Piston; D921
2007CadillacSTS———RearExcept Performance Brakes; Phenolic Piston; D922
2007CadillacSTS———FrontExcept Performance Brakes; Phenolic Piston; D921
2007FordFive Hundred———FrontPhenolic Piston; D1070
2007FordFreestyle———FrontPhenolic Piston; D1070
2007MercuryMontego———FrontPhenolic Piston; D1070
2006CadillacCTS———RearExcept Performance Brakes; Phenolic Piston; D922
2006CadillacCTS———FrontExcept Performance Brakes; Phenolic Piston; D921
2006CadillacCTS———RearPhenolic Piston; D922
2006CadillacCTS———FrontPhenolic Piston; D921
2006CadillacSTS———RearExcept Performance Brakes; Phenolic Piston; D922
2006CadillacSTS———FrontExcept Performance Brakes; Phenolic Piston; D921
2006FordFive Hundred———FrontPhenolic Piston; D1070
2006FordFreestyle———FrontPhenolic Piston; D1070
2006MercuryMontego———FrontPhenolic Piston; D1070
2005BuickRainier———FrontPhenolic Piston; D882
2005CadillacCTS———RearPhenolic Piston; D922
2005CadillacCTS———FrontPhenolic Piston; D921
2005CadillacSTS———RearExcept Performance Brakes; Phenolic Piston; D922
2005CadillacSTS———FrontExcept Performance Brakes; Phenolic Piston; D921
2005ChevroletSSR———FrontPhenolic Piston; D882
2005ChevroletTrailblazer———FrontPhenolic Piston; D882
2005ChevroletTrailblazer EXT———FrontPhenolic Piston; D882
2005FordFive Hundred———FrontPhenolic Piston; D1070
2005FordFreestyle———FrontPhenolic Piston; D1070
2005GMCEnvoy———FrontPhenolic Piston; D882
2005GMCEnvoy XL———FrontPhenolic Piston; D882
2005GMCEnvoy XUV———FrontPhenolic Piston; D882
2005IsuzuAscender———FrontPhenolic Piston; D882
2005MercuryMontego———FrontPhenolic Piston; D1070
2005Saab9-7x———FrontPhenolic Piston; D882
2004BuickRainier———FrontPhenolic Piston; D882
2004CadillacCTS———RearPhenolic Piston; D922
2004CadillacCTS———FrontPhenolic Piston; D921
2004ChevroletSilverado 1500———RearD975; Disc Brake Caliper Piston
2004ChevroletSSR———FrontPhenolic Piston; D882
2004ChevroletTrailblazer———FrontPhenolic Piston; D882
2004ChevroletTrailblazer EXT———FrontPhenolic Piston; D882
2004FordMustangGT——FrontPhenolic Piston; D804
2004FordMustangGT Equipado——FrontPhenolic Piston; D804
2004FordMustangGT Base——FrontPhenolic Piston; D804
2004FordMustangBase——FrontPhenolic Piston; D804
2004GMCEnvoy———FrontPhenolic Piston; D882
2004GMCEnvoy XL———FrontPhenolic Piston; D882
2004GMCEnvoy XUV———FrontPhenolic Piston; D882
2004GMCSierra 1500———RearD975; Disc Brake Caliper Piston
2004IsuzuAscender———FrontPhenolic Piston; D882
2004OldsmobileBravada———FrontPhenolic Piston; D882
2003CadillacCTS———RearPhenolic Piston; D922
2003CadillacCTS———FrontPhenolic Piston; D921
2003ChevroletAvalanche 2500———RearPhenolic Piston; D834
2003ChevroletSilverado 1500—Extended Cab Pickup—Rear4 Wheel Steering; 330mm Rotors; Phenolic Piston; D834
2003ChevroletSilverado 1500 HD———Rear4 Wheel Steering; 330mm Rotors; Phenolic Piston; D834
2003ChevroletSSR———FrontPhenolic Piston; D882
2003ChevroletTrailblazer———FrontPhenolic Piston; D882
2003ChevroletTrailblazer EXT———FrontPhenolic Piston; D882
2003FordMustangGT——FrontPhenolic Piston; D804
2003FordMustangEquipado——FrontPhenolic Piston; D804
2003FordMustangBase——FrontPhenolic Piston; D804
2003GMCEnvoy———FrontPhenolic Piston; D882
2003GMCEnvoy XL———FrontPhenolic Piston; D882
2003GMCSierra 1500—Extended Cab Pickup—Rear4 Wheel Steering; 330mm Rotors; Phenolic Piston; D834
2003GMCSierra 1500 HD———Rear4 Wheel Steering; 330mm Rotors; Phenolic Piston; D834
2003IsuzuAscender———FrontPhenolic Piston; D882
2003OldsmobileBravada———FrontPhenolic Piston; D882
2002CadillacEscalade———Rear4 Wheel Steering; Phenolic Piston; D834
2002ChevroletAvalanche 2500———RearPhenolic Piston; D834
2002ChevroletSuburban 1500———RearDual Piston Calipers; Phenolic Piston; D834
2002ChevroletTahoe——4WDRearPhenolic Piston; D975
2002ChevroletTrailblazer———FrontPhenolic Piston; D882
2002ChevroletTrailblazer EXT———FrontPhenolic Piston; D882
2002FordMustangEquipado——FrontPhenolic Piston; D804
2002FordMustangBase——FrontPhenolic Piston; D804
2002GMCEnvoy———FrontPhenolic Piston; D882
2002GMCEnvoy XL———FrontPhenolic Piston; D882
2002GMCYukon——4WDRearPhenolic Piston; D834
2002GMCYukon XL 1500———RearPhenolic Piston; D834
2002OldsmobileBravada———FrontPhenolic Piston; D882
2001ChevroletSuburban 1500———RearDual Piston Calipers; Phenolic Piston; D834
2001ChevroletTahoe——RWDRearPhenolic Piston; D834
2001ChevroletTahoe——4WDRearLimited Slip Axle; Phenolic Piston; D834
2001FordMustangGT——FrontPhenolic Piston; D804
2001FordMustangGT Bullitt——FrontPhenolic Piston; D804
2001FordMustangEquipado——FrontPhenolic Piston; D804
2001FordMustangBase——FrontPhenolic Piston; D804
2001GMCYukon———RearLimited Slip Axle; Phenolic Piston; D834
2001GMCYukon XL 1500———RearPhenolic Piston; D834
2000ChevroletSuburban 1500———RearDual Piston Calipers; Phenolic Piston; D834
2000ChevroletTahoe——RWDRearPhenolic Piston; D834
2000ChevroletTahoe——4WDRearLimited Slip Axle; Phenolic Piston; D834
2000FordMustangGT——FrontPhenolic Piston; D804
2000FordMustangEquipado——FrontPhenolic Piston; D804
2000FordMustangBase——FrontPhenolic Piston; D804
2000GMCYukon———RearLimited Slip Axle; Phenolic Piston; D834
2000GMCYukon XL 1500———RearPhenolic Piston; D834
1999FordMustangGT——FrontPhenolic Piston; D804
1999FordMustangBase——FrontPhenolic Piston; D804