1990 Buick Lesabre 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

10 Alternator / Generator parts are listed for the 1990 Buick Lesabre, from TERREPOWER, ACDELCO, REMY and 2 other brands. ACDELCO 3351011 carries the "Popular" badge.

In the New grade, ACDELCO, WAI GLOBAL, REMY and 1 other brand supply 4 parts: brand-new units rather than rebuilt ones. A representative part number is ACDELCO 3351011.

In the Remanufactured grade, PURE ENERGY, TERREPOWER, ACDELCO and 1 other brand supply 6 parts: factory-rebuilt units with new wear components. A representative part number is ACDELCO 3342351.

This table covers the brushes inside the alternator. Read more

3 Alternator / Generator Brush parts are listed for the 1990 Buick Lesabre, from STANDARD MOTOR PRODUCTS and WELLS.

This group includes 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 Lesabre, from 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

3 Alternator / Generator Diode Rectifier parts are listed for the 1990 Buick Lesabre, from STANDARD MOTOR PRODUCTS and WELLS.

Listed part numbers: 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

4 Alternator / Generator End Bearing parts for the 1990 Buick Lesabre come from 4 brands — ACDELCO, BCA, SCHAEFFLER and 1 other brand.

Part numbers include ACDELCO 203FF, BCA NB203FF and SCHAEFFLER 60002RSR, among others listed above.

This table covers the batteries listed by group size and specification. Typical signs include slow cranking, a battery lamp, or a no-start after the vehicle sat overnight. Confirm group size and terminal layout in the notes. Clean the posts and the ground before condemning the battery. Read more

6 Battery parts for the 1990 Buick Lesabre come from 5 brands — DEKA, FVP, BOSCH and 2 other brands. The "Popular" part is DEKA 9A78DT.

In the AGM (Extended Life) grade, DEKA, FVP, BOSCH and 1 other brand supply 5 parts: grouped under the catalog's "AGM (Extended Life)" designation — the notes column spells out what sets them apart. A representative part number is DEKA 9A78DT.

In the Performance AGM (Extended Life + Increased Power) grade, FULLRIVER supplies 1 part: grouped under the catalog's "Performance AGM (Extended Life + Increased Power)" designation — the notes column spells out what sets them apart. A representative part number is FULLRIVER FT82578.

Listed part numbers: DEKA 9A78DT, FVP 78AGMG and BOSCH S678DT, plus the other 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

14 Battery Cable parts are listed for the 1990 Buick Lesabre, from STANDARD MOTOR PRODUCTS, DEKA, ACDELCO and 3 other brands. ACDELCO 4SD30X carries the "Popular" badge.

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 engine-control modules that run fuel, spark and emissions. Read more

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

Part numbers include BSE EM8330, CARDONE 778330 and GM GENUINE 88999156.

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

7 Flasher parts for the 1990 Buick Lesabre come from 4 brands — STANDARD MOTOR PRODUCTS, TRIDON / NOVITA, WELLS and 1 other brand. The "Popular" part is BUSSMANN 552.

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

20 Fuse parts for the 1990 Buick Lesabre come from 2 brands — BUSSMANN and LITTELFUSE. The "Popular" part is BUSSMANN ATC15.

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. BUSSMANN ATC20 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 30 Amp grade, BUSSMANN supplies 2 parts: grouped under the catalog's "30 Amp" designation — the notes column spells out what sets them apart. A representative part number is BUSSMANN ATC30.

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.

The 7.5 Amp section lists 3 options from BUSSMANN and LITTELFUSE — grouped under the catalog's "7.5 Amp" designation — the notes column spells out what sets them apart. BUSSMANN ATC712ID is listed in this group.

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

17 Horn parts for the 1990 Buick Lesabre come from 5 brands — FIAMM, STANDARD MOTOR PRODUCTS, ACDELCO and 2 other brands. The "Popular" part is FIAMM 72112.

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.

In the Standard Replacement grade, FIAMM, STANDARD MOTOR PRODUCTS, ACDELCO and 2 other brands supply 11 parts: built to original-equipment specification. A representative part number is FIAMM 7200223.

This table covers the capacitors that suppress radio noise. Read more

This group shows a single part: WELLS 1B1001.

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

This group shows a single part: WELLS 5S4622.

This table covers the starter drives that engage the flywheel ring gear. Read more

This group shows a single part: STANDARD MOTOR PRODUCTS SDN180.

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

7 Starter Motor parts are listed for the 1990 Buick Lesabre, from REMY, WAI GLOBAL, ACDELCO and 3 other brands. ACDELCO 3361893A carries the "Popular" badge.

New: 2 parts, from REMY and WAI GLOBAL. A representative part number is REMY 96017.

Remanufactured: 5 parts, from ACDELCO, PURE ENERGY, FVP and 2 other brands. A representative part number is ACDELCO 3361893A.

This group includes ACDELCO 3361893A, REMY 96017 and WAI GLOBAL 6315N and the remaining parts above.

This table covers the Starter Motor shims. Read more

This group shows a single part: DORMAN 678211.

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

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

In the Economy grade, STANDARD MOTOR PRODUCTS supplies 1 part: the catalog's value-priced group. 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.

Listed part numbers: STANDARD MOTOR PRODUCTS SS251T, STANDARD MOTOR PRODUCTS SS251 and WELLS 1M1028A, plus the other parts above.

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

4 Voltage Regulator parts for the 1990 Buick Lesabre come from 2 brands — STANDARD MOTOR PRODUCTS and WELLS.

This group includes STANDARD MOTOR PRODUCTS VR472, STANDARD MOTOR PRODUCTS VR431 and WELLS 1V1060 and the remaining parts above.