1990 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

14 Alternator / Generator parts are listed for the 1990 Buick Century, from ACDELCO, PURE ENERGY, WAI GLOBAL and 5 other brands. ACDELCO 3351193 carries the "Popular" badge.

In the New grade, WAI GLOBAL, ACDELCO, BOSCH and 1 other brand supply 5 parts: brand-new units rather than rebuilt ones. A representative part number is ACDELCO 3351193.

In the Remanufactured grade, ACDELCO, FVP, PURE ENERGY and 3 other brands supply 9 parts: factory-rebuilt units with new wear components. A representative part number is ACDELCO 3342395A.

This table covers the brushes inside the alternator. Read more

3 Alternator / Generator Brush parts are listed for the 1990 Buick Century, from STANDARD MOTOR PRODUCTS and WELLS. All of them fit every engine offered in the 1990 Century.

Listed part numbers: STANDARD MOTOR PRODUCTS RX145, STANDARD MOTOR PRODUCTS RX144 and WELLS 5A1041.

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

2 Alternator / Generator Brush Holder parts are listed for the 1990 Buick Century, from STANDARD MOTOR PRODUCTS and WELLS. All of them fit every engine offered in the 1990 Century.

Listed part numbers: STANDARD MOTOR PRODUCTS RX131 and WELLS 5A1040.

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

3 Alternator / Generator Diode Rectifier parts are listed for the 1990 Buick Century, from STANDARD MOTOR PRODUCTS and WELLS. All of them fit every engine offered in the 1990 Century.

Part numbers include STANDARD MOTOR PRODUCTS D67, STANDARD MOTOR PRODUCTS D56 and WELLS 2D3008.

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

7 Alternator / Generator End Bearing parts for the 1990 Buick Century come from 7 brands — WJB / INMOTION PARTS, ACDELCO, NATIONAL and 4 other brands. The "Popular" part is ACDELCO 203FF. Every part fits both the 2.5L 151cid L4 and the 3.1L 189cid V6.

The Economy section lists 1 option from WJB / INMOTION PARTS — the catalog's value-priced group. WJB / INMOTION PARTS RB62032RS is listed in this group.

In the Standard Replacement grade, ACDELCO, NATIONAL, BCA and 1 other brand supply 4 parts: built to original-equipment specification. A representative part number is ACDELCO 203FF.

2 further parts sit outside the graded sections, with the same engine-level match.

This group includes ACDELCO 203FF and WJB / INMOTION PARTS RB62032RS and the remaining parts above.

This table covers the positive and ground cables that run from the battery. Typical signs include a stretched or frayed cable, or a control that no longer reaches the end of its travel. Route the new cable through the same clips. A kinked cable binds and fails early. Read more

7 Battery Cable parts are listed for the 1990 Buick Century, from DEKA, STANDARD MOTOR PRODUCTS and UNITED MOTOR PRODUCTS. STANDARD MOTOR PRODUCTS A354DA carries the "Popular" badge.

This group includes STANDARD MOTOR PRODUCTS A354DA, STANDARD MOTOR PRODUCTS A404DA and DEKA 00310 and the remaining parts above.

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

One part is listed for the 1990 Buick Century — DORMAN 390030.

This table covers the terminals and clamps that connect cables to the battery posts. Read more

This group shows a single part: DEKA 00351.

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

This group shows a single part: STANDARD MOTOR PRODUCTS BR34.

This table covers the Cruise control modules. Read more

One part is listed for the 1990 Buick Century — CARDONE 341872.

This table covers the servos that hold throttle for cruise control. Read more

This group shows a single part: BSE CS2501.

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 are listed for the 1990 Buick Century, from DORMAN and GM GENUINE. All of them fit every engine offered in the 1990 Century.

Part numbers include DORMAN 47150 and GM GENUINE 1550568.

This table covers the engine-control modules that run fuel, spark and emissions. Read more

3 Engine Control Module (ECM Computer) parts are listed for the 1990 Buick Century, from BSE, CARDONE and GM GENUINE.

This group includes BSE EM7748, CARDONE 777748 and GM GENUINE 88999170.

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

7 Flasher parts for the 1990 Buick Century come from 4 brands — STANDARD MOTOR PRODUCTS, TRIDON / NOVITA, WELLS and 1 other brand. The "Popular" part is BUSSMANN 552. 6 parts fit every engine; the other 1 is engine-specific.

Listed part numbers: BUSSMANN 552, STANDARD MOTOR PRODUCTS EFL552 and STANDARD MOTOR PRODUCTS EFL1, 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 for the 1990 Buick Century come from 2 brands — BUSSMANN and LITTELFUSE. The "Popular" part is BUSSMANN ATC15. Every part fits both the 2.5L 151cid L4 and the 3.1L 189cid V6.

In the 10 Amp grade, BUSSMANN and LITTELFUSE supply 3 parts: grouped under the catalog's "10 Amp" designation — the notes column spells out what sets them apart. A representative part number is BUSSMANN ATC10.

The 15 Amp section lists 3 options from BUSSMANN and LITTELFUSE — grouped under the catalog's "15 Amp" designation — the notes column spells out what sets them apart. BUSSMANN ATC15 is listed in this group.

The 20 Amp section lists 3 options from BUSSMANN and LITTELFUSE — grouped under the catalog's "20 Amp" designation — the notes column spells out what sets them apart. LITTELFUSE ATO20 is listed in this group.

In the 25 Amp grade, BUSSMANN and LITTELFUSE supply 3 parts: grouped under the catalog's "25 Amp" designation — the notes column spells out what sets them apart. A representative part number is BUSSMANN ATC25.

In the 5 Amp grade, BUSSMANN and LITTELFUSE supply 3 parts: grouped under the catalog's "5 Amp" designation — the notes column spells out what sets them apart. A representative part number is BUSSMANN ATC5.

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

16 Horn parts for the 1990 Buick Century come from 5 brands — FIAMM, STANDARD MOTOR PRODUCTS, ACDELCO and 2 other brands. The "Popular" part is FIAMM 72112. 15 parts fit every engine; the other 1 is engine-specific.

The Accessory Replacement section lists 6 options from FIAMM — grouped under the catalog's "Accessory Replacement" designation — the notes column spells out what sets them apart. FIAMM 72112 is listed in this group.

Standard Replacement: 10 parts, from FIAMM, STANDARD MOTOR PRODUCTS, ACDELCO and 2 other brands. A representative part number is FIAMM 7200223.

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

3 Speed Sensor parts for the 1990 Buick Century come from 3 brands — DORMAN, ULTRA-POWER and WELLS. 2 parts fit every engine; the other 1 is engine-specific.

The Economy section: 2 options from DORMAN and ULTRA-POWER. DORMAN 917630 is listed in this group.

Standard Replacement: 1 part, from WELLS. A representative part number is WELLS 5S4617.

Listed part numbers: DORMAN 917630, ULTRA-POWER SC10 and WELLS 5S4617.

This table covers the Starter bolts. Read more

2 Starter Bolt parts are listed for the 1990 Buick Century, from DORMAN and GM GENUINE.

Listed part numbers: DORMAN 72004 and GM GENUINE 11610633.

This table covers the brushes inside the starter motor. Read more

This group shows a single part: WELLS 5A1010.

This table covers the Starter bushings. Typical signs include a clunk over bumps, or a torn or walked-out bushing you can see. Press the new bushing square. A cocked bushing will tear in a few thousand miles. Read more

2 Starter Bushing parts for the 1990 Buick Century come from 2 brands — STANDARD MOTOR PRODUCTS and WELLS.

Listed part numbers: STANDARD MOTOR PRODUCTS X5256 and WELLS 7A1005.

This table covers the starter motors that crank the engine. Typical signs include no motion, a squeal, or a motor that only runs on one speed. Confirm power, ground and the control module before replacing the motor. Read more

11 Starter Motor parts are listed for the 1990 Buick Century, from ACDELCO, PURE ENERGY, REMY and 4 other brands. ACDELCO 3371126 carries the "Popular" badge.

New: 7 parts, from ACDELCO, PURE ENERGY, BOSCH and 4 other brands. A representative part number is ACDELCO 3371126.

Remanufactured: 4 parts, from ACDELCO, PURE ENERGY, REMY and 1 other brand. A representative part number is ACDELCO 3361891.

This table covers the Starter Motor repair kits. Read more

This group shows a single part: 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

6 Starter Solenoid parts are listed for the 1990 Buick Century, from WELLS and STANDARD MOTOR PRODUCTS.

Economy: 1 part, from STANDARD MOTOR PRODUCTS. A representative part number is STANDARD MOTOR PRODUCTS SS251T.

The Standard Replacement section: 3 options from WELLS and STANDARD MOTOR PRODUCTS. STANDARD MOTOR PRODUCTS SS251 is listed in this group.

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

This group includes STANDARD MOTOR PRODUCTS SS251T, STANDARD MOTOR PRODUCTS SS251 and WELLS 1M1028A and the remaining parts above.

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

4 Voltage Regulator parts for the 1990 Buick Century come from 2 brands — STANDARD MOTOR PRODUCTS and WELLS. Every part fits both the 2.5L 151cid L4 and the 3.1L 189cid V6.

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