2019 Buick Lacrosse 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

9 Camshaft Position Sensor parts are listed for the 2019 Buick Lacrosse, from HOLSTEIN, PRENCO, UNITED MOTOR PRODUCTS and 6 other brands. GM GENUINE 12646782 carries the "Popular" badge.

In the Economy grade, HOLSTEIN, PRENCO and UNITED MOTOR PRODUCTS supply 3 parts: the catalog's value-priced group. A representative part number is HOLSTEIN 2CAM0581.

The Standard Replacement section lists 5 options from GM GENUINE, STANDARD MOTOR PRODUCTS, ASTEMO / HITACHI and 2 other brands — built to original-equipment specification. GM GENUINE 12646782 is listed in this group.

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

This group includes GM GENUINE 12646782, HOLSTEIN 2CAM0581 and PRENCO 4E1259 and the remaining parts above.

This table covers the seals at the Camshaft Position Sensor. 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

This group shows a single part: GM GENUINE 12626252.

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

8 Crankshaft Position Sensor parts are listed for the 2019 Buick Lacrosse, from HOLSTEIN, SPECTRA PREMIUM, GM GENUINE and 5 other brands. GM GENUINE 12646781 carries the "Popular" badge.

Economy: 2 parts, from HOLSTEIN and SPECTRA PREMIUM. A representative part number is HOLSTEIN 2CRK0730.

The Standard Replacement section: 6 options from GM GENUINE, STANDARD MOTOR PRODUCTS, ASTEMO / HITACHI and 3 other brands. GM GENUINE 12646781 is listed in this group.

This group includes GM GENUINE 12646781, HOLSTEIN 2CRK0730 and SPECTRA PREMIUM S10568 and the remaining parts above.

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

16 Ignition Coil parts are listed for the 2019 Buick Lacrosse, from GM GENUINE, B&B, FAMOUS BRAND and 12 other brands. DELPHI GN10889 carries the "Popular" badge.

Economy: 7 parts, from B&B, FAMOUS BRAND, HOLSTEIN and 4 other brands. A representative part number is B&B BB2830.

The Premium section lists 1 option from DELPHI — a step above OE specification in materials, tolerances or warranty terms. DELPHI GN10889 is listed in this group.

The Standard Replacement section: 8 options from GM GENUINE, DENSO, NGK and 4 other brands. DENSO 6737206 is listed in this group.

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

4 Spark Plug parts for the 2019 Buick Lacrosse come from 3 brands — NGK, ACDELCO and BOSCH.

Listed part numbers: ACDELCO 41130, BOSCH 85006 and NGK 91768, plus the other parts above.

This table covers the silicone and rubber boots that insulate the coil-to-plug spark path. Typical signs include a misfire in the rain, carbon tracking on the boot, or a snap when you pop the coil off. Replace boots as a set on a high-mileage engine; one cracked boot will take the coil with it. Read more

STANDARD MOTOR PRODUCTS supplies both parts for the 2019 Buick Lacrosse.

Economy: 1 part, from STANDARD MOTOR PRODUCTS. A representative part number is STANDARD MOTOR PRODUCTS 34181.

The Standard Replacement section: 1 option from STANDARD MOTOR PRODUCTS. STANDARD MOTOR PRODUCTS SPP227E is listed in this group.

Listed part numbers: STANDARD MOTOR PRODUCTS 34181 and STANDARD MOTOR PRODUCTS SPP227E.

This table covers the seals at the Spark Plug Tube. 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 Spark Plug Tube Seal parts are listed for the 2019 Buick Lacrosse, from GM GENUINE and MAHLE / CLEVITE.

Part numbers include GM GENUINE 12613249 and MAHLE / CLEVITE GS34091.