1991 Buick Century Electrical Parts

This table covers the alternators that charge the battery and run the electrical load. Typical signs include dim lights at idle, a battery lamp, or a growl from the charging pulley. Load-test the battery and inspect the belt and grounds — a bad ground mimics a failed alternator. Read more

5 Alternator / Generator parts for the 1991 Buick Century come from 4 brands — PURE ENERGY, WAI GLOBAL, ACDELCO and 1 other brand. The "Popular" part is WAI GLOBAL 786011N6G1.

The New section lists 2 options from WAI GLOBAL and PURE ENERGY — brand-new units rather than rebuilt ones. WAI GLOBAL 786011N6G1 is listed in this group.

The Remanufactured section lists 3 options from ACDELCO, FVP and PURE ENERGY — factory-rebuilt units with new wear components. ACDELCO 3342312A is listed in this group.

Listed part numbers: WAI GLOBAL 786011N6G1, PURE ENERGY 7857607N and ACDELCO 3342312A, plus the other parts above.

This table covers the brushes inside the alternator. Read more

This group shows a single part: STANDARD MOTOR PRODUCTS RX144.

This table covers the holders that carry the alternator brushes. Read more

2 Alternator / Generator Brush Holder parts for the 1991 Buick Century come from 2 brands — STANDARD MOTOR PRODUCTS and WELLS.

This group includes STANDARD MOTOR PRODUCTS RX131 and WELLS 5A1040.

This table covers the rectifier diode packs in the alternator. Read more

This group shows a single part: STANDARD MOTOR PRODUCTS D67.

This table covers the bearings in the alternator housing. Typical signs include a growl that rises with speed, or play in the shaft or hub. Set preload the way the notes specify. A dry or crushed bearing fails quickly. Read more

5 Alternator / Generator End Bearing parts are listed for the 1991 Buick Century, from WJB / INMOTION PARTS, ACDELCO, BCA and 2 other brands. ACDELCO 203FF carries the "Popular" badge.

In the Economy grade, WJB / INMOTION PARTS supplies 1 part: the catalog's value-priced group. A representative part number is WJB / INMOTION PARTS RB62032RS.

The Standard Replacement section lists 3 options from ACDELCO, BCA and NATIONAL — built to original-equipment specification. ACDELCO 203FF is listed in this group.

1 ungrouped part is not assigned to a grade, with the same engine-level match.

Part numbers include ACDELCO 203FF, WJB / INMOTION PARTS RB62032RS and BCA NB203FF, among others listed above.

This table covers the clamps and brackets that secure the battery. Read more

This group shows a single part: DORMAN 390030.

This table covers the resettable circuit breakers in this vehicle's electrical system. Read more

One part is listed for the 1991 Buick Century — STANDARD MOTOR PRODUCTS BR34.

This table covers the Cruise control modules. Read more

This group shows a single part: CARDONE 341872.

This table covers the Cruise Control valves. Typical signs include a circuit that will not hold, a whistle, or a code for this valve. A stuck valve is often debris. Clean the ports before installing the new one. Read more

2 Cruise Control Valve parts for the 1991 Buick Century come from 2 brands — DORMAN and GM GENUINE.

This group includes DORMAN 47150 and GM GENUINE 1550568.

This table covers the flasher units that blink the turn signals and hazards. Read more

6 Flasher parts are listed for the 1991 Buick Century, from STANDARD MOTOR PRODUCTS, TRIDON / NOVITA and WELLS. STANDARD MOTOR PRODUCTS EFL552 carries the "Popular" badge.

Listed part numbers: STANDARD MOTOR PRODUCTS EFL552, STANDARD MOTOR PRODUCTS EFL1 and TRIDON / NOVITA LF12, plus the other parts above.

This table covers the replacement fuses for this vehicle's fuse boxes. Typical signs include one circuit dead while its neighbor still works, or a fuse that blows again as soon as you replace it. Match amperage and fuse type. A repeat blow means a short — find it before the next fuse. Read more

15 Fuse parts are listed for the 1991 Buick Century, from BUSSMANN and LITTELFUSE. BUSSMANN ATC15 carries the "Popular" badge.

The 10 Amp section lists 3 options from BUSSMANN and LITTELFUSE — grouped under the catalog's "10 Amp" designation — the notes column spells out what sets them apart. BUSSMANN ATC10 is listed in this group.

In the 15 Amp grade, BUSSMANN and LITTELFUSE supply 3 parts: grouped under the catalog's "15 Amp" designation — the notes column spells out what sets them apart. A representative part number is BUSSMANN ATC15.

In the 20 Amp grade, BUSSMANN and LITTELFUSE supply 3 parts: grouped under the catalog's "20 Amp" designation — the notes column spells out what sets them apart. A representative part number is LITTELFUSE ATO20.

The 25 Amp section lists 3 options from BUSSMANN and LITTELFUSE — grouped under the catalog's "25 Amp" designation — the notes column spells out what sets them apart. BUSSMANN ATC25 is listed in this group.

The 5 Amp section lists 3 options from BUSSMANN and LITTELFUSE — grouped under the catalog's "5 Amp" designation — the notes column spells out what sets them apart. BUSSMANN ATC5 is listed in this group.

This table covers the horns mounted in the front of the vehicle. Read more

15 Horn parts are listed for the 1991 Buick Century, from FIAMM, STANDARD MOTOR PRODUCTS, ACDELCO and 2 other brands. FIAMM 7200223 carries the "Popular" badge.

In the Accessory Replacement grade, FIAMM supplies 5 parts: grouped under the catalog's "Accessory Replacement" designation — the notes column spells out what sets them apart. A representative part number is FIAMM 7211223.

The Standard Replacement section: 10 options from FIAMM, STANDARD MOTOR PRODUCTS, ACDELCO and 2 other brands. FIAMM 7200223 is listed in this group.

This table covers the speed sensors on the transmission, transfer case or ABS ring. Typical signs include a dead speedometer, harsh transmission shifts, or a code for vehicle speed. Inspect the tone wheel and the connector before replacing the sensor. Read more

2 Speed Sensor parts are listed for the 1991 Buick Century, from DORMAN and WELLS.

Economy: 1 part, from DORMAN. A representative part number is DORMAN 917630.

The Standard Replacement section: 1 option from WELLS. WELLS 5S4617 is listed in this group.

Listed part numbers: DORMAN 917630 and WELLS 5S4617.

This table covers the Starter bolts. Read more

This group shows a single part: GM GENUINE 11610633.

This table covers the Starter Motor repair kits. Read more

One part is listed for the 1991 Buick Century — STANDARD MOTOR PRODUCTS SRK101.

This table covers the Starter solenoids. Typical signs include a harsh or missing shift, or a code for this solenoid circuit. Check resistance and the connector before dropping the pan for a solenoid. Read more

2 Starter Solenoid parts for the 1991 Buick Century come from WELLS.

This group includes WELLS 1M1028A and WELLS 1M1028.

This table covers the regulators that control alternator output voltage. Read more

4 Voltage Regulator parts are listed for the 1991 Buick Century, from STANDARD MOTOR PRODUCTS and WELLS.

Part numbers include STANDARD MOTOR PRODUCTS VR472, STANDARD MOTOR PRODUCTS VR431 and WELLS 1V1060, among others listed above.