1991 Buick Regal Ignition Parts

This table covers the sensors that report camshaft position to the ECU. Typical signs include a stall, a no-start, or a code for cam or crank correlation. Check the connector and the reluctor gap before replacing the sensor. Read more

13 Camshaft Position Sensor parts for the 1991 Buick Regal come from 9 brands — STANDARD MOTOR PRODUCTS, WALKER PRODUCTS, FAMOUS BRAND and 6 other brands. The "Popular" part is WALKER PRODUCTS 23591205.

The Economy section lists 7 options from FAMOUS BRAND, HOLSTEIN, PRENCO and 4 other brands — the catalog's value-priced group. FAMOUS BRAND CSC1326 is listed in this group.

The Full Service Kit section lists 1 option from WALKER PRODUCTS — grouped under the catalog's "Full Service Kit" designation — the notes column spells out what sets them apart. WALKER PRODUCTS 23591205 is listed in this group.

In the Heavy Duty grade, STANDARD MOTOR PRODUCTS supplies 1 part: rated for severe service. A representative part number is STANDARD MOTOR PRODUCTS PC5K.

In the Standard Replacement grade, WALKER PRODUCTS, STANDARD MOTOR PRODUCTS and WELLS supply 4 parts: built to original-equipment specification. A representative part number is STANDARD MOTOR PRODUCTS PC5.

This table covers the interrupter wheels the camshaft sensor reads. Read more

This group shows a single part: STANDARD MOTOR PRODUCTS PC100.

This table covers the sensors that report crankshaft position and engine speed. Typical signs include a stall, a no-start, or a code for cam or crank correlation. Check the connector and the reluctor gap before replacing the sensor. Read more

13 Crankshaft Position Sensor parts for the 1991 Buick Regal come from 10 brands — WALKER PRODUCTS, STANDARD MOTOR PRODUCTS, HOLSTEIN and 7 other brands. The "Popular" part is STANDARD MOTOR PRODUCTS PC9T.

The Economy section: 6 options from STANDARD MOTOR PRODUCTS, HOLSTEIN, PRENCO and 3 other brands. STANDARD MOTOR PRODUCTS PC9T is listed in this group.

The Full Service Kit section: 1 option from WALKER PRODUCTS. WALKER PRODUCTS 23591010 is listed in this group.

Standard Replacement: 6 parts, from WALKER PRODUCTS, DELPHI, STANDARD MOTOR PRODUCTS and 2 other brands. A representative part number is DELPHI SS10208.

This table covers the brackets that mount the Crankshaft Position Sensor. Typical signs include a cracked mount, a rattle, or a bracket that no longer holds alignment. Confirm position in the notes. Many brackets look alike and bolt to different corners. Read more

2 Crankshaft Position Sensor Bracket parts for the 1991 Buick Regal come from 2 brands — STANDARD MOTOR PRODUCTS and WELLS.

This group includes STANDARD MOTOR PRODUCTS PCB1 and WELLS 5S1945.

This table covers the coils that fire each spark plug. Typical signs include a misfire that follows one cylinder, a snap in damp weather, or a coil that is swollen or cracked. Swap a suspect coil with a neighbor to confirm, then replace boots that tore on the way off. Read more

17 Ignition Coil parts for the 1991 Buick Regal come from 15 brands — STANDARD MOTOR PRODUCTS, WALKER PRODUCTS, SKP and 12 other brands. The "Popular" part is SKP SKIC021.

The Economy section: 7 options from SKP, STANDARD MOTOR PRODUCTS, B&B and 4 other brands. SKP SKIC021 is listed in this group.

In the Premium grade, DELPHI and STANDARD MOTOR PRODUCTS supply 2 parts: a step above OE specification in materials, tolerances or warranty terms. A representative part number is DELPHI GN10123.

Standard Replacement: 8 parts, from WALKER PRODUCTS, UNITED MOTOR PRODUCTS, ACDELCO and 4 other brands. A representative part number is UNITED MOTOR PRODUCTS C540.

This table covers the gaskets that seal the Ignition Coil Mounting. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for. Read more

This group shows a single part: WELLS 4C3001.

This table covers the seals at the Ignition Coil. 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

One part is listed for the 1991 Buick Regal — GM GENUINE 19260632.

This table covers the Ignition control modules. Read more

8 Ignition Control Module (ICM) parts for the 1991 Buick Regal come from 6 brands — STANDARD MOTOR PRODUCTS, GM GENUINE, HOLSTEIN and 3 other brands. The "Popular" part is STANDARD MOTOR PRODUCTS LX364T.

The Economy section: 1 option from STANDARD MOTOR PRODUCTS. STANDARD MOTOR PRODUCTS LX364T is listed in this group.

Standard Replacement: 7 parts, from GM GENUINE, HOLSTEIN, STANDARD MOTOR PRODUCTS and 3 other brands. A representative part number is HOLSTEIN 2IGM0052.

Part numbers include STANDARD MOTOR PRODUCTS LX364T, HOLSTEIN 2IGM0052 and GM GENUINE 19435469, among others listed above.

This table covers the lock cylinders in the ignition switch. Read more

3 Ignition Lock Cylinder parts for the 1991 Buick Regal come from 3 brands — DORMAN, STANDARD MOTOR PRODUCTS and WELLS.

The Economy section: 1 option from DORMAN. DORMAN 989006 is listed in this group.

Standard Replacement: 2 parts, from STANDARD MOTOR PRODUCTS and WELLS. A representative part number is STANDARD MOTOR PRODUCTS US126LB.

Part numbers include DORMAN 989006, STANDARD MOTOR PRODUCTS US126LB and WELLS 4H1005.

This table covers the spark plugs for this engine. Typical signs include misfire under load, rough idle, or a flashing check-engine light. Verify the gap even on pre-gapped plugs, and replace coil boots that come off a high-mileage engine. Read more

27 Spark Plug parts are listed for the 1991 Buick Regal, from DENSO, NGK, BOSCH and 5 other brands. DENSO 5023 carries the "Popular" badge. They are grouped as Copper / Nickel, Double Platinum (lasts up to 3x longer than Copper / Nickel), Iridium (lasts up to 4x longer than Copper / Nickel) and Platinum (lasts up to 2x longer than Copper / Nickel), with Copper / Nickel the largest group at 8 parts from MOTORCRAFT, DENSO, NGK and 3 other brands.

This table covers the Spark Plug Heat shields. Typical signs include a bent shield rubbing a rotor, or rust-through that leaves the backing open. A rubbing shield will eat a new rotor. Straighten or replace it before the wheel goes back on. Read more

2 Spark Plug Heat Shield parts for the 1991 Buick Regal come from 2 brands — GM GENUINE and UNITED MOTOR PRODUCTS.

This group includes GM GENUINE 8006 and UNITED MOTOR PRODUCTS 910.

This table covers the non-foulers that space a spark plug away from oil fouling. Read more

This group shows a single part: DORMAN 42008.

This table covers the Spark Plug wires. Read more

12 Spark Plug Wire parts for the 1991 Buick Regal come from 8 brands — STANDARD MOTOR PRODUCTS, B&B, UNITED MOTOR PRODUCTS and 5 other brands. The "Popular" part is NGK 51217.

The Economy section: 2 options from B&B and STANDARD MOTOR PRODUCTS. B&B S648404 is listed in this group.

Premium: 5 parts, from UNITED MOTOR PRODUCTS, NGK, DENSO and 1 other brand. A representative part number is NGK 51217.

Standard Replacement: 5 parts, from ACDELCO, STANDARD MOTOR PRODUCTS, B&B and 2 other brands. A representative part number is ACDELCO 9626D.

This table covers the Tune-Up kits. Read more

This group shows a single part: UNITED MOTOR PRODUCTS 68638.