# MotoRad ST16V Engine Coolant Safety Lever Radiator Cap for 1959-2015 Buick Century ### Specifications Cap Depth: 1.48 in Coolant Recovery System: Open & Closed System Coolant Recovery System: Yes Filler Neck Height: 0.75 in Filler Neck Outside Diameter: 2.61 in Lever Type: Safety Lever Material: Stainless Steel, Plastic, Rubber Pressure Rating (PSI): 16 Quick Pressure Release: Yes SAE Pressure Range (PSI): 14-18 Valve OD: 1.54 IN Width: 2.25 IN ### Features - Offer precise pressure control - Ensure the proper fit - Feature safety lever - Easy installation ### Product Details Engine Coolant Safety Lever Radiator Cap (ST16V) by MotoRad®. Pressure: 16 psi. MotoRad radiator caps are designed and manufactured to offer precise control for the automotive cooling system. MotoRad safety lever radiator caps utilize a lever that locks the cap to the filler neck requiring the lever be lifted before removal. When the lever is lifted, the valve pressurizing in the cooling system is opened and pressure is vented through the overflow tube making it safe to remove the radiator cap. MotoRad radiator pressure caps are designed and manufactured to offer precise pressure control for the automotive cooling system. Most standard radiator caps are also offered in a version with a safety lever feature. MotoRad’s radiator caps are manufactured to meet all OEM requirements and each part is factory tested prior to shipping to customers. A slowly failing, worn out or faulty radiator cap can result in overheating, loss of coolant or even major engine damage. One function of the radiator cap is to keep pressure on the cooling system. If the pressure on the system drops because of a failing radiator cap, the boiling point of the coolant also drops. If the boiling point drops enough, it can cause the engine to overheat. If you replace a thermostat and the radiator cap is more than three years old, chances are is not holding to the same pressure as a new cap. Explain to your customer that by replacing the thermostat and the radiator cap, their vehicle should run within the specified operating temperature and the coolant system will be properly pressurized. The radiator pressure cap is a very important component of the system. The cap monitors the pressure of the system and adjusts to maintain the desired pressure (normally in the 15 psi range). If an improper cap or a defective cap is used, the correct system pressure will not be maintained. If the system pressure is too low the coolant will be allowed to boil at unacceptable temperatures. If the system pressure is too high, damage to the system can occur, potentially causing loss of coolant and an engine overheating condition. Brand: MotoRad Part Number: ST16V UPC: 055644911687 OE Numbers: 861854, 3EF17, 3S17, 3EG17 ### Vehicle Fitment Table Year Make Model Position Fitment Precision Note 1977-2005 Buick Century 1977-1990 Buick Electra 1977-2005 Buick Le Sabre 1991-2005 Buick Park Avenue 1988-1991 Buick Reatta 1977-2004 Buick Regal 2002-2007 Buick Rendezvous 1977-1993, 1995-1999 Buick Riviera 1991-1993 Buick Roadmaster 1977-1988 Buick Skylark 2005-2006 Buick Terraza 1987-1992 Cadillac Allante 1987-1992 Cadillac Brougham 1969-1981, 1983-1995 Cadillac Deville 1969-1981, 1983-1993 Cadillac Eldorado 1999-2000 Cadillac Escalade 1993 Cadillac Fleetwood 1976-1981, 1983-1993 Cadillac Seville 1985-2005 Chevy Astro 1981 Chevy Bel Air 1978-1995, 2003-2005 Chevy Blazer 1976-1992 Chevy Camaro 1976-1993 Chevy Caprice 1982-1994 Chevy Cavalier 1976-1987 Chevy Chevette 1978-2002 Chevy CK Pickup 1991-1996 Chevy Corvette 1978-1987 Chevy El Camino 1996-2002 Chevy Express 1978-1996 Chevy G-Series 1977-1985, 2000-2003 Chevy Impala 1990-2001 Chevy Lumina 1977-1983 Chevy Malibu 1977-1988, 1995-2003 Chevy Monte Carlo 1977-1979 Chevy Nova 1978-1993, 2001-2002 Chevy P-Series 1983-1994 Chevy S-10 Blazer 1982-2001, 2004 Chevy S-10 Pickup 1995-1999 Chevy Silverado 1978-1999 Chevy Suburban 1995-2000 Chevy Tahoe 2005-2006 Chevy Uplander 1971-1972, 1976-1977 Chevy Vega 1997-2005 Chevy Venture 1962-1971 Chrysler 300 1995-2004 Chrysler Cirrus 1983-1989 Chrysler Fifth Avenue 1967-1975, 1981-1983, 1990-1993 Chrysler Imperial 1977-1995 Chrysler Le Baron 1967-1993 Chrysler New Yorker 1965-1981 Chrysler Newport 1987-1989, 1992 Chrysler Phantom 1996-1998, 2001-2003 Chrysler Sebring 1989-1994 Chrysler Shadow 1990-1995 Chrysler Spirit 1995-1997 Chrysler Stratus 1959-1961, 1963-1985, 1990-2015 Chrysler Town and Country 1984-1986 Chrysler Volare 1994-2008 Chrysler Voyager 1971-1998 Dodge B-Series 1984-2007 Dodge Caravan 1970-1974 Dodge Challenger 1967-1978, 1983-1987 Dodge Charger 1965-1976 Dodge Coronet 1987-1999 Dodge Dakota 1967-1988 Dodge Dart 1998 Dodge Durango 1971-1993 Dodge DW Pickup 1987-2015 Dodge Grand Caravan 1978-1979, 1981-1988 Dodge Magnum 1960-1973 Dodge Polara 1971-1974 Dodge Power Wagon 1994-1998 Dodge Ram 1999-2001 Dodge Ram Van 1974-1996, 1999-2001 Dodge Ramcharger 1995-2003, 2005-2006 Dodge Stratus 1992-1996 Dodge Viper 1986-1990 Ford Escort 1986-1991 Ford LTD 1986-1995 Ford Mustang 1986-1991 Ford Tempo 1986-1988 Ford Thunderbird 1978-2002 GMC CK Pickup 1978-1996 GMC G-Series 1978-1995 GMC Jimmy 1978-1993 GMC P-Series 1985-2005 GMC Safari 1996-2002 GMC Savana 1982-2001, 2003-2004 GMC Sonoma 1978-1999 GMC Suburban 1992-1999 GMC Yukon 2000 GMC Yukon Denali 1972-1974 Hummer DJ5 2000-2001 Hummer H1 1996-1999 Isuzu Hombre 1974-1980, 1991-2001 Jeep Cherokee 1972-1978 Jeep CJ 1991-1992 Jeep Comanche 1972-1973 Jeep Commando 1993-1996 Jeep Grand Cherokee 1972-1980, 1984 Jeep J-Series 1972-1983, 1985, 1989-1991 Jeep Wagoneer 1994-1995, 1999 Jeep Wrangler 1986-1988 Lincoln Continental 1986-1992 Lincoln Mark VII 1986-1989 Lincoln Town Car 1986 Mercury Capri 1986-1988 Mercury Cougar 1986-1991 Mercury Grand Marquis 1991-1994, 1996-2001 Oldsmobile Bravada 1982-1996 Oldsmobile Ciera 1974-1997 Oldsmobile Cutlass 1974-1999 Oldsmobile Eighty-Eight 1998-1999 Oldsmobile Intrigue 1974-1996 Oldsmobile Ninety-Eight 1990-2004 Oldsmobile Silhouette 1971-1992 Oldsmobile Toronado 1967-1974 Plymouth Barracuda 1960-1970 Plymouth Belvedere 1970-1976 Plymouth Duster 1959-1978, 1980-1989 Plymouth Fury 1988-2000 Plymouth Grand Voyager 1968-1975 Plymouth Roadrunner 1965-1974 Plymouth Satellite 1967-1976 Plymouth Valiant 1984-2000 Plymouth Voyager 2001-2005 Pontiac Aztek 1977-2005 Pontiac Bonneville 1977-1981 Pontiac Catalina 1984-1988 Pontiac Fiero 1977-1992 Pontiac Firebird 1978-1980, 1985-1988 Pontiac Grand Am 1977-2003 Pontiac Grand Prix 1977-1983 Pontiac LeMans 1999-2006 Pontiac Montana 1976-1980, 1982-1994 Pontiac Sunbird 1987, 1989 Pontiac Tempest 2005-2006 Saturn Relay 2009-2012 Volkswagen Routan ### FAQ **Will this fit my vehicle?** Please verify your year, make, model, position, and any fitment notes using the Vehicle Fitment Table above before purchase. **What part number is this?** The listed part number is ST16V. **Is this product designed for direct replacement?** Yes. This product is intended to match the compatible vehicle applications listed in the fitment table. **Should I confirm fitment before ordering?** Yes. Always compare your original part, position, and vehicle details with the fitment table before ordering. ### Common Searches - Engine Coolant Safety Lever Radiator Cap for Buick Century - ST16V fitment - MotoRad Engine Coolant Safety Lever Radiator Cap - 1977 Buick Century Engine Coolant Safety Lever Radiator Cap ## Details - **Price:** 9.95 CAD - **Vendor:** MotoRad - **Type:** Engine Coolant Safety Lever Radiator Cap - **Tags:** 1959-1961, 1959-1978, 1960-1970 Plymouth Belvedere, 1960-1973 Dodge Polara, 1962-1971 Chrysler 300, 1963-1985, 1965-1974 Plymouth Satellite, 1965-1976 Dodge Coronet, 1965-1981 Chrysler Newport, 1967-1974 Plymouth Barracuda, 1967-1975, 1967-1976 Plymouth Valiant, 1967-1978, 1967-1988 Dodge Dart, 1967-1993 Chrysler New Yorker, 1968-1975 Plymouth Roadrunner, 1969-1981, 1970-1974 Dodge Challenger, 1970-1976 Plymouth Duster, 1971-1972, 1971-1974 Dodge Power Wagon, 1971-1992 Oldsmobile Toronado, 1971-1993 Dodge DW Pickup, 1971-1998 Dodge B-Series, 1972-1973 Jeep Commando, 1972-1974 Hummer DJ5, 1972-1978 Jeep CJ, 1972-1980, 1972-1983, 1974-1980, 1974-1996, 1974-1996 Oldsmobile Ninety-Eight, 1974-1997 Oldsmobile Cutlass, 1974-1999 Oldsmobile Eighty-Eight, 1976-1977 Chevy Vega, 1976-1980, 1976-1981, 1976-1987 Chevy Chevette, 1976-1992 Chevy Camaro, 1976-1993 Chevy Caprice, 1977-1979 Chevy Nova, 1977-1981 Pontiac Catalina, 1977-1983 Chevy Malibu, 1977-1983 Pontiac LeMans, 1977-1985, 1977-1988, 1977-1988 Buick Skylark, 1977-1990 Buick Electra, 1977-1992 Pontiac Firebird, 1977-1993, 1977-1995 Chrysler Le Baron, 1977-2003 Pontiac Grand Prix, 1977-2004 Buick Regal, 1977-2005 Buick Century, 1977-2005 Buick Le Sabre, 1977-2005 Pontiac Bonneville, 1978-1979, 1978-1980, 1978-1987 Chevy El Camino, 1978-1993, 1978-1993 GMC P-Series, 1978-1995, 1978-1995 GMC Jimmy, 1978-1996 Chevy G-Series, 1978-1996 GMC G-Series, 1978-1999 Chevy Suburban, 1978-1999 GMC Suburban, 1978-2002 Chevy CK Pickup, 1978-2002 GMC CK Pickup, 1980-1989 Plymouth Fury, 1981 Chevy Bel Air, 1981-1983, 1981-1988 Dodge Magnum, 1982-1994 Chevy Cavalier, 1982-1994 Pontiac Sunbird, 1982-1996 Oldsmobile Ciera, 1982-2001, 1983-1987 Dodge Charger, 1983-1989 Chrysler Fifth Avenue, 1983-1993 Cadillac Eldorado, 1983-1993 Cadillac Seville, 1983-1994 Chevy S-10 Blazer, 1983-1995 Cadillac Deville, 1984 Jeep J-Series, 1984-1986 Chrysler Volare, 1984-1988 Pontiac Fiero, 1984-2000 Plymouth Voyager, 1984-2007 Dodge Caravan, 1985, 1985-1988 Pontiac Grand Am, 1985-2005 Chevy Astro, 1985-2005 GMC Safari, 1986 Mercury Capri, 1986-1988 Ford Thunderbird, 1986-1988 Lincoln Continental, 1986-1988 Mercury Cougar, 1986-1989 Lincoln Town Car, 1986-1990 Ford Escort, 1986-1991 Ford LTD, 1986-1991 Ford Tempo, 1986-1991 Mercury Grand Marquis, 1986-1992 Lincoln Mark VII, 1986-1995 Ford Mustang, 1987, 1987-1989, 1987-1992 Cadillac Allante, 1987-1992 Cadillac Brougham, 1987-1999 Dodge Dakota, 1987-2015 Dodge Grand Caravan, 1988-1991 Buick Reatta, 1988-2000 Plymouth Grand Voyager, 1989 Pontiac Tempest, 1989-1991 Jeep Wagoneer, 1989-1994 Chrysler Shadow, 1990-1993 Chrysler Imperial, 1990-1995 Chrysler Spirit, 1990-2001 Chevy Lumina, 1990-2004 Oldsmobile Silhouette, 1990-2015 Chrysler Town and Country, 1991-1992 Jeep Comanche, 1991-1993 Buick Roadmaster, 1991-1994, 1991-1996 Chevy Corvette, 1991-2001 Jeep Cherokee, 1991-2005 Buick Park Avenue, 1992 Chrysler Phantom, 1992-1996 Dodge Viper, 1992-1999 GMC Yukon, 1993 Cadillac Fleetwood, 1993-1996 Jeep Grand Cherokee, 1994-1995, 1994-1998 Dodge Ram, 1994-2008 Chrysler Voyager, 1995-1997 Chrysler Stratus, 1995-1999 Buick Riviera, 1995-1999 Chevy Silverado, 1995-2000 Chevy Tahoe, 1995-2003, 1995-2003 Chevy Monte Carlo, 1995-2004 Chrysler Cirrus, 1996-1998, 1996-1999 Isuzu Hombre, 1996-2001 Oldsmobile Bravada, 1996-2002 Chevy Express, 1996-2002 GMC Savana, 1997-2005 Chevy Venture, 1998 Dodge Durango, 1998-1999 Oldsmobile Intrigue, 1999 Jeep Wrangler, 1999-2000 Cadillac Escalade, 1999-2001 Dodge Ram Van, 1999-2001 Dodge Ramcharger, 1999-2006 Pontiac Montana, 2000 GMC Yukon Denali, 2000-2001 Hummer H1, 2000-2003 Chevy Impala, 2001-2002 Chevy P-Series, 2001-2003 Chrysler Sebring, 2001-2005 Pontiac Aztek, 2002-2007 Buick Rendezvous, 2003-2004 GMC Sonoma, 2003-2005 Chevy Blazer, 2004 Chevy S-10 Pickup, 2005-2006 Buick Terraza, 2005-2006 Chevy Uplander, 2005-2006 Dodge Stratus, 2005-2006 Saturn Relay, 2009-2012 Volkswagen Routan, Automotive, Engine Coolant Safety Lever Radiator Cap, MotoRad, ST16V ## Variants | Variant | Price | Available | |---------|-------|-----------| | Default Title | 9.95 CAD | In stock | ## Images - MotoRad ST16V Engine Coolant Safety Lever Radiator Cap for 1959-2015 Buick Century --- > Source: [Standard Auto Part](https://www.standardautopart.com/products/motorad-st16v-engine-coolant-safety-lever-radiator-cap) > Updated: 2026-08-17