ACDelco 12R21 | Engine Coolant Reservoir Cap

Part Number
12R21
Engine Coolant Reservoir Cap

Fits: 91-92 Saturn SC, 91-02 Saturn SL, 91-02 Saturn SL1, 91-02 Saturn SL2, 92-98 Buick Skylark, 92-96 Chevrolet Beretta, 92-96 Chevrolet Corsica, 92-98 Oldsmobile Achieva, 92-98 Pontiac Grand Am, 93-02 Saturn SC1, 93-02 Saturn SC2, 93-99 Saturn SW1, 93-01 Saturn SW2, 94-96 Buick Commercial Chassis, 94-96 Buick Roadmaster, 94-96 Cadillac Commercial Chassis, 94-96 Cadillac Fleetwood, 94-96 Chevrolet Caprice, 94-96 Chevrolet Impala, 95-99 Oldsmobile Aurora, 95 Pontiac Sunfire, 97-99 Chevrolet Corvette, 97-98 Chevrolet Malibu, 97-98 Oldsmobile Cutlass, 99-00 Ford F-350, 99-07 Ford Lobo, 99 Oldsmobile Intrigue, 00 Ford F-550 Super Duty, 00 Mercedes-Benz C43 AMG, 03-10 International 9200i SBA, 03 International 9900i SFA, 05-06 Mercury Monterey

Special Price $9.00 Regular Price $12.99
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ACDelco Professional, premium aftermarket Standard Type Radiator Caps seal and pressurize your vehicle's cooling system as the radiator transfers heat from your vehicle's engine coolant to the outside air, and are a high quality replacement for many vehicles on the road today. These standard type radiator caps are manufactured to meet your expectations for fit, form, and function. ? WARNING: Cancer and Reproductive Harm - https://www.P65Warnings.ca.gov


BRAND: ACDelco




FEATURES:


  • Buick;Cadillac;Chevrolet;Ford;Ford;International;Mercedes-Benz;Mercury;Oldsmobile;Pontiac;Saturn
  • Helps seal and pressurize your vehicle's cooling system as the radiator transfers heat from the engine's coolant to the outside air
  • Manufactured to meet expectations for fit, form, and function
  • Professional, premium aftermarket replacement
  • Provides the performance and dependability you expect from ACDelco


SPECIFICS:


ColorBlack
Good Maintenance Practices - Section 1 - Bullet 1Regularly inspect cap for signs of damage or wear, and replace them if signs of damage are found
Good Maintenance Practices - Section 1 - Bullet 2Lock cap into correct position to help prevent leakage and provide proper ventilation
Installation TypeThreaded
MaterialPlastic
Pressure Release LeverNo
Programming RequiredNo
Signs of Wear & Troubleshooting - Section 1 - Bullet 1Coolant leaks
Signs of Wear & Troubleshooting - Section 1 - Bullet 2Steam venting from radiator or surge tank cap
Signs of Wear & Troubleshooting - Section 1 - Bullet 3Engine overheating
Signs of Wear & Troubleshooting - Section 1 - HeaderSigns of wear for standard type radiator caps include but are not limited to:
VentedYes

Relief pressure 15 lb Standard


DOWNLOADS:




APPLICATIONS:


  • 1991-2002 Saturn SL
  • 2005-2006 Mercury Monterey
  • 1992-1996 Chevrolet Beretta
  • 1993-2002 Saturn SC1
  • 1992-1998 Oldsmobile Achieva
  • 1994-1996 Cadillac Fleetwood
  • 2003-2010 International 9200i SBA
  • 1992-1998 Buick Skylark
  • 2000-2000 Ford F-550 Super Duty
  • 1995-1999 Oldsmobile Aurora
  • 2000-2000 Mercedes-Benz C43 AMG
  • 1991-2002 Saturn SL2
  • 1994-1996 Cadillac Commercial Chassis
  • 1994-1996 Buick Roadmaster
  • 1992-1996 Chevrolet Corsica
  • 1992-1998 Pontiac Grand Am
  • 1997-1998 Chevrolet Malibu
  • 1997-1998 Oldsmobile Cutlass
  • 1993-2001 Saturn SW2
  • 1991-2002 Saturn SL1
  • 1991-1992 Saturn SC
  • 1997-1999 Chevrolet Corvette
  • 1999-2007 Ford Lobo
  • 1999-1999 Oldsmobile Intrigue
  • 2003-2003 International 9900i SFA
  • 1999-2000 Ford F-350
  • 1993-2002 Saturn SC2
  • 1994-1996 Buick Commercial Chassis
  • 1995-1995 Pontiac Sunfire
  • 1994-1996 Chevrolet Caprice
  • 1993-1999 Saturn SW1
  • 1994-1996 Chevrolet Impala
Customer Questions
Does AC Delco make Ford parts?
No, AC Delco produces parts primarily for General Motors vehicles and does not make parts specifically for Ford vehicles.
Can I use AC Delco parts to replace OEM parts?
Yes, in most cases AC Delco parts can be used as a replacement for OEM parts. However, it's important to ensure that the parts are compatible with your specific make and model of vehicle.
What AC Delco oil filter do I need?
AC Delco offers a variety of oil filters that are compatible with different makes and models of vehicles. To determine which AC Delco oil filter you need, consult your vehicle's owner's manual or use our online filter lookup tool that matches the make, model, and year of your vehicle.
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