OE Ford Spark Plugs

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When Is the Right Time to Change Spark Plugs?

Spark plugs play a crucial role in your engine’s performance. Over time, they wear out and lose efficiency. Ignoring them for too long can cause rough starts, poor fuel economy, and engine misfires. If your Ford F-150 isn’t running as smoothly as it used to, it may be time to inspect or replace the spark plugs to restore peak performance.

Signs to Replace Spark Plugs in Your Ford F-150 Urgently

1. Engine Misfires

Worn spark plugs can’t ignite fuel properly, causing your F-150’s engine to misfire or stumble.

2. Difficulty Starting

Old or fouled plugs can make it harder for your truck to start, especially in colder conditions.

3. Decreased Fuel Efficiency

When spark plugs don’t fire efficiently, your engine burns more fuel to compensate.

4. Rough Idling

Uneven firing from bad plugs can lead to a shaky or noisy idle.

5. Lack of Acceleration Power

If your F-150 feels sluggish or slow to respond, worn spark plugs might be the culprit.

Keeping your truck’s engine strong starts with the small parts that make a big difference. Consider replacing worn spark plugs along with other OEM engine parts to keep your Ford running smoothly. For help finding exactly what you need, contact us today and our Hacienda Ford Kingsville Parts team will gladly assist.

Spark Plug

Part Number: DYFS-12Y-PT
Ford Ford
Other Names: sp596
Description: 3.5L.
Fits:
  • Ford:
    • Expedition,
    • F-150
  • Lincoln:
    • Navigator
MSRP $19.82
$12.75

Spark Plug

Part Number: CYFS-12F-1X
Ford Ford
Other Names: sp548x
Replaces: CYFS-12F-1, CYFS-12Y, SP-519, SP-548
Description: 5.0L, 2015-17. 5.2L, without supercharger.
Fits:
  • Ford:
    • F-150,
    • Mustang
MSRP $10.04
$6.46

Spark Plug

Part Number: CYFS-13Y-RCX
Ford Ford
Other Names: sp532x
Replaces: CYFS-13Y-RC, SP-532
Description: 1.6L turbo.
Fits:
  • Ford:
    • Escape,
    • Fiesta,
    • Fusion,
    • Transit Connect
MSRP $15.13
$9.73

Spark Plug

Part Number: AGSF-22F-MX
Ford Ford
Other Names: sp500x
Replaces: AGSF-22F-M, AGSF-22F-MF6, AGSF-22P-P, AGSF-22P-PF6, AGSF-22P-PM, AGSF-22P-PMF6, AGSF12PP, SP-500
Description: 3.0L ohv, with Flex fuel. 4.0L, sohc. 3.0L, with ethanol.
Fits:
  • Ford:
    • Explorer,
    • Explorer Sport,
    • Explorer Sport Trac,
    • Ranger,
    • Taurus
  • Mercury:
    • Mountaineer,
    • Sable
MSRP $8.76
$5.78

Spark Plug

Part Number: AGSF-22W-MX
Ford Ford
Other Names: sp479x
Replaces: AGSF-22W, AGSF-22W-F4, AGSF-22W-M, AGSF-22W-MF4, AWSF-22E, AWSF-22E-F4, AWSF22W, SP-479
Description: 6.8L. 5.4l sohc.
Fits:
  • Ford:
    • E-150,
    • E-150 Club Wagon,
    • E-150 Econoline,
    • E-150 Econoline Club Wagon,
    • E-250,
    • E-250 Econoline,
    • E-350 Club Wagon,
    • E-350 Econoline,
    • E-350 Econoline Club Wagon,
    • E-350 Super Duty,
    • E-450 Econoline Super Duty,
    • E-450 Super Duty,
    • E-550 Econoline Super Duty,
    • E-550 Super Duty,
    • Econoline Super Duty,
    • Excursion,
    • Expedition,
    • F-150,
    • F-150 Heritage,
    • F-250,
    • F-250 Super Duty,
    • F-350 Super Duty,
    • F-450 Super Duty,
    • F-550 Super Duty
  • Lincoln:
    • Navigator
MSRP $8.25
$5.45

Spark Plug

Part Number: AGSF-22Y-PCX
Ford Ford
Other Names: sp492x
Replaces: AGSF-22Y-PC, AGSF-22Y-PCF4, SP-492
Description: 2.3L.
Fits:
  • Ford:
    • Escape,
    • Focus
  • Mercury:
    • Mariner
MSRP $17.87
$11.50

Spark Plug

Part Number: AGSF-24N-X
Ford Ford
Other Names: sp412x
Replaces: AGSF-24N, SP-412
Description: From 07/19/05. 4.0l.
Fits:
  • Ford:
    • Explorer,
    • Explorer Sport Trac,
    • Mustang,
    • Ranger
  • Mercury:
    • Mountaineer
MSRP $7.35
$4.85

Spark Plug

Part Number: AGSF-32W-MX
Ford Ford
Other Names: sp433x
Replaces: AGSF-32W, AGSF-32W-F6, AGSF-32W-M, AGSF-32W-MF4, AGSF-32W-MF6, SP-433
Description: Dohc.
Fits:
  • Ford:
    • Escape,
    • Five Hundred,
    • Freestyle,
    • Fusion,
    • Taurus
  • Lincoln:
    • Aviator,
    • Mark VIII,
    • Zephyr
  • Mercury:
    • Marauder,
    • Mariner,
    • Milan,
    • Montego,
    • Sable
MSRP $8.87
$5.86

Spark Plug

Part Number: AGSF-32Y-RAX
Ford Ford
Other Names: sp541ax
Replaces: AGSF-32Y-PC, AGSF-32Y-PCF4, AGSF-32Y-R, AGSF-32Y-RA, SP-541, SP-541-A
Description: 2.3L. From 04/05/04.
Fits:
  • Ford:
    • Escape,
    • Focus,
    • Ranger,
    • Transit Connect
  • Mercury:
    • Mariner
MSRP $12.27
$7.90

Spark Plug

Part Number: ASF-42P-X
Ford Ford
Other Names: sp502x
Replaces: ASF-42P, ASF-42P-F4, SP-502
Description: Vendor:motorcraft. Vendor #ASF 42-P. Standard. Optional.
Fits:
  • Ford:
    • Bronco,
    • E-150 Econoline,
    • E-150 Econoline Club Wagon,
    • E-350 Econoline,
    • E-350 Econoline Club Wagon,
    • Econoline Super Duty,
    • F-150,
    • F-250,
    • F-250 HD,
    • F-350,
    • F-Super Duty
MSRP $8.51
$5.62

Spark Plug

Part Number: AWSF-42C-X
Ford Ford
Other Names: sp419x
Replaces: AWSF-42C, AWSF-42C-A, AWSF-42C-F4, AWSF-42C-F6, SP-419, SP-419-A
Description: Standard. Vendor:motorcraft. Vendor #awsf 42-c.
Fits:
  • Ford:
    • Aerostar,
    • Bronco II,
    • Explorer,
    • Ranger,
    • Tempo
  • Mercury:
    • Topaz
MSRP $5.82
$3.84

Spark Plug

Part Number: HYFS-094-YECX
Ford Ford
Other Names: sp539x
Replaces: HYFS-094-YEC, HYFS-94-YEC, HYFS-94-YECX, SP-539
Description: 1.5L.
Fits:
  • Ford:
    • Escape,
    • Fusion
MSRP $20.73
$13.34

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