2021 Ford Explorer 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

18 Camshaft Position Sensor parts for the 2021 Ford Explorer come from 12 brands — MOTORCRAFT, DELPHI, STANDARD MOTOR PRODUCTS and 9 other brands. The "Popular" part is DELPHI SS11388.

The Economy section lists 4 options from DORMAN, HOLSTEIN, PRENCO and 1 other brand — the catalog's value-priced group. DORMAN 962043 is listed in this group.

In the Standard Replacement grade, MOTORCRAFT, STANDARD MOTOR PRODUCTS, WALKER PRODUCTS and 5 other brands supply 12 parts: built to original-equipment specification. A representative part number is DELPHI SS11388.

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

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

23 Crankshaft Position Sensor parts for the 2021 Ford Explorer come from 12 brands — HOLSTEIN, DELPHI, MOTORCRAFT and 9 other brands. The "Popular" part is DELPHI SS12164.

The Economy section: 7 options from HOLSTEIN, PRENCO, SPECTRA PREMIUM and 2 other brands. HOLSTEIN 2CRK0376 is listed in this group.

Standard Replacement: 15 parts, from DELPHI, MOTORCRAFT, WALKER PRODUCTS and 3 other brands. A representative part number is DELPHI SS12164.

1 further part sits outside the graded sections, with the same engine-level match.

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

29 Ignition Coil parts for the 2021 Ford Explorer come from 14 brands — SKP, DELPHI, DENSO and 11 other brands. The "Popular" part is DELPHI GN11145. Grades run from Economy through Standard Replacement; Standard Replacement is the most populated section, led by DENSO, MOTORCRAFT, UNITED MOTOR PRODUCTS and 4 other brands.

This table covers the fasteners that mount an ignition coil. Read more

One part is listed for the 2021 Ford Explorer — DORMAN 23750.

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

This group shows a single part: MOTORCRAFT SW8441.

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

24 Spark Plug parts are listed for the 2021 Ford Explorer, from NGK, BOSCH, ACDELCO and 5 other brands. NGK 94374 carries the "Popular" badge.

In the Double Platinum (lasts up to 3x longer than Copper / Nickel) grade, ACDELCO, AUTOLITE, BOSCH and 1 other brand supply 4 parts: grouped under the catalog's "Double Platinum (lasts up to 3x longer than Copper / Nickel)" designation — the notes column spells out what sets them apart. A representative part number is ACDELCO 41814.

The Iridium (lasts up to 4x longer than Copper / Nickel) section lists 12 options from NGK, BOSCH, DENSO and 4 other brands — grouped under the catalog's "Iridium (lasts up to 4x longer than Copper / Nickel)" designation — the notes column spells out what sets them apart. NGK 94374 is listed in this group.

In the Platinum (lasts up to 2x longer than Copper / Nickel) grade, ACDELCO, MOTORCRAFT, BOSCH and 1 other brand supply 6 parts: grouped under the catalog's "Platinum (lasts up to 2x longer than Copper / Nickel)" designation — the notes column spells out what sets them apart. A representative part number is ACDELCO 17.

In the Ruthenium (maximum durability & ignitability) grade, NGK supplies 2 parts: grouped under the catalog's "Ruthenium (maximum durability & ignitability)" designation — the notes column spells out what sets them apart. A representative part number is NGK 90495.

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

5 Spark Plug / Ignition Coil Boot parts for the 2021 Ford Explorer come from 2 brands — STANDARD MOTOR PRODUCTS and MOTORCRAFT.

The Economy section: 2 options from STANDARD MOTOR PRODUCTS. STANDARD MOTOR PRODUCTS 20781 is listed in this group.

Standard Replacement: 3 parts, from STANDARD MOTOR PRODUCTS and MOTORCRAFT. A representative part number is MOTORCRAFT WR6161.

Listed part numbers: STANDARD MOTOR PRODUCTS 20781, STANDARD MOTOR PRODUCTS 20791 and MOTORCRAFT WR6161, plus the other parts above.

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

This group shows a single part: FEL-PRO 71321.