2003 Buick Century Cooling System Parts

This table covers the engine coolants and antifreeze formulations specified for this cooling system. Typical signs include a rising temperature gauge, rusty or sludged coolant, or a heater that blows cold. Use the chemistry named in the notes. Mixing silicate, OAT and HOAT formulas can gel in the radiator. Read more

16 Coolant / Antifreeze parts are listed for the 2003 Buick Century, from PRESTONE, PEAK, VALVOLINE and 3 other brands. FVP MV5050GAL carries the "Popular" badge.

The Compatible With All Colors section lists 1 option from PRESTONE — grouped under the catalog's "Compatible With All Colors" designation — the notes column spells out what sets them apart. PRESTONE AF3055 is listed in this group.

In the Economy grade, FVP, PEAK, PRESTONE and 1 other brand supply 4 parts: the catalog's value-priced group. A representative part number is FVP MV5050GAL.

The Premium section lists 4 options from PRESTONE and PEAK — a step above OE specification in materials, tolerances or warranty terms. PRESTONE AF2100 is listed in this group.

The Standard Replacement section lists 7 options from VALVOLINE, PRESTONE, ACDELCO and 2 other brands — built to original-equipment specification. ACDELCO 105027 is listed in this group.

This table covers the bleeders used to purge air from the coolant circuit. Read more

This group shows a single part: DORMAN 902112.

This table covers the hard pipes and extra hoses in the coolant circuit. Read more

6 Coolant Hose / Pipe parts are listed for the 2003 Buick Century, from GM GENUINE, ACDELCO, GATES and 2 other brands. ACDELCO 14156S carries the "Popular" badge.

Listed part numbers: ACDELCO 14156S, GATES 19026 and CONTINENTAL 63121, plus the other parts above.

This table covers the seals at the Coolant Hose / Pipe. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again. Read more

2 Coolant Hose / Pipe Seal parts for the 2003 Buick Century come from 2 brands — APEX and FEL-PRO.

Part numbers include APEX ADM1403 and FEL-PRO 70799.

This table covers the Coolant Level sensors. Typical signs include a warning lamp, a stored code, or a reading that drops out when the harness is wiggled. Inspect the connector and ground before replacing the sensor — wiring faults are often condemned as bad sensors. Read more

5 Coolant Level Sensor parts are listed for the 2003 Buick Century, from WALKER PRODUCTS, HOLSTEIN, GPD and 1 other brand. GPD 1712532 carries the "Popular" badge.

Economy: 1 part, from HOLSTEIN. A representative part number is HOLSTEIN 2CTS0221.

In the Full Service Kit grade, WALKER PRODUCTS supplies 1 part: grouped under the catalog's "Full Service Kit" designation — the notes column spells out what sets them apart. A representative part number is WALKER PRODUCTS 21192002.

The Standard Replacement section: 1 option from GPD. GPD 1712532 is listed in this group.

2 ungrouped parts are not assigned to a grade, with the same engine-level match.

This group includes GPD 1712532, HOLSTEIN 2CTS0221 and WALKER PRODUCTS 21192002 and the remaining parts above.

This table covers the overflow / expansion tanks that hold extra coolant. Read more

5 Coolant Reservoir parts for the 2003 Buick Century come from 5 brands — DORMAN, GM GENUINE, GPD and 2 other brands. The "Popular" part is DORMAN 603033.

This group includes DORMAN 603033, GM GENUINE 10333858 and GPD 2411209 and the remaining parts above.

This table covers the caps on the overflow / expansion tank. Typical signs include a leak at the neck, a cap that will not hold pressure, or a missing tether. Match the pressure rating or thread in the notes — radiator, reservoir and fuel caps are not interchangeable. Read more

2 Coolant Reservoir Cap parts for the 2003 Buick Century come from 2 brands — DORMAN and MOTORAD.

Listed part numbers: DORMAN 82724 and MOTORAD T167.

This table covers the Coolant Reservoir retainers and clips. Read more

One part is listed for the 2003 Buick Century — GM GENUINE 10427340.