/live/media/CS/CS_7989_Fro.jpg)
OE Quality
60-Day Returns
/live/media/CS/CS_7989_Fro.jpg)
/live/media/CS/CS_7989_Top.jpg)
/live/media/CS/CS_7989_Con.jpg)
/live/media/CS/CS_7989_Oth.jpg)
ChampionPart #: 7989
Champion 7989 Spark Plug
⚙️ 44 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$20.87Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship
Most orders ship same-day if ordered before 1pm CST.
✅OE Direct Replacement — Bolt-on fit, no modifications needed
📦Double Platinum Power
🚗Fitment: Ford, Lincoln, Mercury, and Avanti, Expedition, Explorer, Explorer Sport Trac, F-150, F-250 Super Duty, F-350 Super Duty, Mustang, Mark LT, Navigator, Mountaineer, and Avanti
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST
Not what you need? Click here for all Spark Plug options
Champion Double Platinum Power Spark Plug Overview
The Champion Double Platinum Power spark plug, part number 7989, is engineered for reliable ignition performance in select Ford, Lincoln, and Mercury vehicles. Designed with platinum on both the center and ground electrodes, this spark plug offers consistent spark delivery and durability for models like the Ford F-150, Explorer, and Lincoln Navigator.
- Double platinum electrodes for enhanced durability and stable ignition
- Non-removable nut electrical terminal type for secure connection
- Pre-gapped at 0.045 inches (1.15 mm) for optimal spark efficiency
- Tapered seat type with 0.85-inch reach and 0.630-inch (16 mm) thread diameter
- Resistor type spark plug to reduce electrical interference
- Hex size of 0.625 inches (15.88 mm) for standard installation tools
- High thread plug type suitable for specific ignition systems
Detailed Product Features and Specifications
This Champion spark plug features a platinum ground electrode core and a platinum center electrode tip, which contribute to longer service life and consistent ignition performance. The single ground electrode design is paired with a tapered seat to ensure a secure fit and proper sealing in the combustion chamber. The plug’s pre-gap size of 0.045 inches (1.15 mm) is factory set to meet the ignition requirements of compatible vehicles. With a thread diameter of 0.630 inches (16 mm) and a reach of 0.85 inches, this spark plug fits a range of Ford, Lincoln, and Mercury models. The resistor built into the plug helps minimize radio frequency interference, supporting vehicle electronics and communication systems.
About the Double Platinum Power Product Line
The Double Platinum Power line from Champion is designed to provide enhanced durability and consistent ignition performance by utilizing platinum on both the center and ground electrodes. This construction helps maintain the spark plug’s gap over time, reducing the need for frequent replacements and supporting efficient combustion. The 7989 spark plug is part of this line, offering a balance of longevity and reliable ignition for vehicles requiring high thread, tapered seat plugs.
Compatible Vehicles and Common Applications
- Ford F-150, F-250 Super Duty, F-350 Super Duty
- Ford Expedition, Explorer, Explorer Sport Trac
- Lincoln Navigator, Mark LT
- Mercury Mountaineer, Mustang
This spark plug is suitable for secondary ignition systems in these models, helping to address issues such as:
- Engine misfires or rough idling
- Reduced fuel efficiency
- Difficulty starting the engine
- Increased exhaust emissions
- Loss of power under acceleration
Installation Notes and Tips
When installing the Champion Double Platinum Power spark plug 7989, ensure the engine is cool to prevent damage to the threads. Use a torque wrench to tighten the plug to the manufacturer’s specifications to avoid over-tightening or under-tightening. The non-removable nut electrical terminal requires compatible ignition wires or boots for proper connection. Verify the pre-gap size before installation, although the plug comes pre-gapped at 0.045 inches (1.15 mm).
Quality Assurance and Warranty
Champion spark plugs, including the Double Platinum Power 7989, are manufactured to meet OEM standards for fit, form, and function. The use of platinum electrodes enhances durability and consistent performance over time. While specific warranty details may vary, Champion typically offers coverage against manufacturing defects to ensure product reliability.
| Brand | Champion |
| Part Number | 7989 |
| Position | Double Platinum Power |
| Center Electrode Tip Material | Platinum |
| Classification | Champion Double Platinum |
| Electrical Terminal Type | Non-Removable Nut |
| Ground Electrode Core Material | Platinum |
| Ground Electrode Quantity | 1 |
| Hex Size | 0.625 |
| Hex Size | 15.880 |
| Hex Type | Hex |
| Insulator Height | 0.06 |
| Plug Type | High Thread |
| Pre-Gap Size | 0.045 |
| Pre-Gap Size | 1.15 |
| Reach | 0.85 |
| Resistor Type | Yes |
| Seat Type | Tapered |
| Thread Diameter | 0.630 |
| Thread Diameter | 16.000 |
This part fits 44 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2008 | Ford | Expedition | 5.4L | V8 | N/A | Match to Original; OE Type; Gap 0.044 (in); with OE Black Coil Boots; with 16 (mm) Diameter Threads Above Seat; Cam Cover Date Before 10/09/2007; Uses standard 5/8 (in) hex plug socket; One-Piece Shell; Enhanced over OE Design; Plug Type Number 7989; Double Platinum Power |
| 2008 | Ford | Explorer | 4.6L | V8 | N/A | Match to Original; OE Type; Gap 0.044 (in); with OE Black Coil Boots; with 16 (mm) Diameter Threads Above Seat; Cam Cover Date Before 11/30/2007; Uses standard 5/8 (in) hex plug socket; One-Piece Shell; Enhanced over OE Design; Plug Type Number 7989; Double Platinum Power |
| 2008 | Ford | Explorer Sport Trac | 4.6L | V8 | N/A | Match to Original; OE Type; Gap 0.044 (in); with OE Black Coil Boots; with 16 (mm) Diameter Threads Above Seat; Cam Cover Date Before 11/30/2007; Uses standard 5/8 (in) hex plug socket; One-Piece Shell; Enhanced over OE Design; Plug Type Number 7989; Double Platinum Power |
| 2008 | Ford | F-150 | 5.4L | V8 | N/A | Match to Original; OE Type; Gap 0.044 (in); with OE Black Coil Boots; with 16 (mm) Diameter Threads Above Seat; Cam Cover Date Before 10/09/2007; Uses standard 5/8 (in) hex plug socket; One-Piece Shell; Enhanced over OE Design; Plug Type Number 7989; Double Platinum Power |
| 2008 | Ford | F-250 Super Duty | 6.8L | V10 | N/A | Match to Original; OE Type; Gap 0.044 (in); with OE Black Coil Boots; with 16 (mm) Diameter Threads Above Seat; Cam Cover Date Before 10/09/2007; Uses standard 5/8 (in) hex plug socket; One-Piece Shell; Enhanced over OE Design; Plug Type Number 7989; Double Platinum Power |
| 2008 | Ford | F-250 Super Duty | 5.4L | V8 | N/A | Match to Original; OE Type; Gap 0.044 (in); with OE Black Coil Boots; with 16 (mm) Diameter Threads Above Seat; Cam Cover Date Before 10/09/2007; Uses standard 5/8 (in) hex plug socket; One-Piece Shell; Enhanced over OE Design; Plug Type Number 7989; Double Platinum Power |
| 2008 | Ford | F-350 Super Duty | 5.4L | V8 | N/A | Match to Original; OE Type; Gap 0.044 (in); with OE Black Coil Boots; with 16 (mm) Diameter Threads Above Seat; Cam Cover Date Before 10/09/2007; Uses standard 5/8 (in) hex plug socket; One-Piece Shell; Enhanced over OE Design; Plug Type Number 7989; Double Platinum Power |
| 2008 | Ford | F-350 Super Duty | 6.8L | V10 | N/A | Match to Original; OE Type; Gap 0.044 (in); with OE Black Coil Boots; with 16 (mm) Diameter Threads Above Seat; Cam Cover Date Before 10/09/2007; Uses standard 5/8 (in) hex plug socket; One-Piece Shell; Enhanced over OE Design; Plug Type Number 7989; Double Platinum Power |
| 2008 | Ford | Mustang | 4.6L | V8 | N/A | Match to Original; OE Type; Gap 0.044 (in); with OE Black Coil Boots; with 16 (mm) Diameter Threads Above Seat; Cam Cover Date Before 11/30/2007; Uses standard 5/8 (in) hex plug socket; One-Piece Shell; Enhanced over OE Design; Plug Type Number 7989; Double Platinum Power |
| 2008 | Lincoln | Mark LT | 5.4L | V8 | N/A | Match to Original; OE Type; Gap 0.044 (in); with OE Black Coil Boots; with 16 (mm) Diameter Threads Above Seat; Cam Cover Date Before 10/09/2007; Uses standard 5/8 (in) hex plug socket; One-Piece Shell; Enhanced over OE Design; Plug Type Number 7989; Double Platinum Power |
| 2008 | Lincoln | Navigator | 5.4L | V8 | N/A | Match to Original; OE Type; Gap 0.044 (in); with OE Black Coil Boots; with 16 (mm) Diameter Threads Above Seat; Cam Cover Date Before 10/09/2007; Uses standard 5/8 (in) hex plug socket; One-Piece Shell; Enhanced over OE Design; Plug Type Number 7989; Double Platinum Power |
| 2008 | Mercury | Mountaineer | 4.6L | V8 | N/A | Match to Original; OE Type; Gap 0.044 (in); with OE Black Coil Boots; with 16 (mm) Diameter Threads Above Seat; Cam Cover Date Before 11/30/2007; Uses standard 5/8 (in) hex plug socket; One-Piece Shell; Enhanced over OE Design; Plug Type Number 7989; Double Platinum Power |
| 2007 | Ford | Expedition | 5.4L | V8 | N/A | OE Type; Gap 0.044 (in); Uses standard 5/8 (in) hex plug socket; One-Piece Shell; Enhanced over OE Design; Plug Type Number 7989; Double Platinum Power |
| 2007 | Ford | Explorer | 4.6L | V8 | N/A | OE Type; Gap 0.044 (in); Uses standard 5/8 (in) hex plug socket; One-Piece Shell; Enhanced over OE Design; Plug Type Number 7989; Double Platinum Power |
| 2007 | Ford | Explorer Sport Trac | 4.6L | V8 | N/A | OE Type; Gap 0.044 (in); Uses standard 5/8 (in) hex plug socket; One-Piece Shell; Enhanced over OE Design; Plug Type Number 7989; Double Platinum Power |
| 2007 | Ford | F-150 | 5.4L | V8 | N/A | OE Type; Gap 0.044 (in); Uses standard 5/8 (in) hex plug socket; One-Piece Shell; Enhanced over OE Design; Plug Type Number 7989; Double Platinum Power |
| 2007 | Ford | F-250 Super Duty | 5.4L | V8 | N/A | OE Type; Gap 0.044 (in); Uses standard 5/8 (in) hex plug socket; One-Piece Shell; Enhanced over OE Design; Plug Type Number 7989; Double Platinum Power |
| 2007 | Ford | F-250 Super Duty | 6.8L | V10 | N/A | OE Type; Gap 0.044 (in); Uses standard 5/8 (in) hex plug socket; One-Piece Shell; Enhanced over OE Design; Plug Type Number 7989; Double Platinum Power |
| 2007 | Ford | F-350 Super Duty | 6.8L | V10 | N/A | OE Type; Gap 0.044 (in); Uses standard 5/8 (in) hex plug socket; One-Piece Shell; Enhanced over OE Design; Plug Type Number 7989; Double Platinum Power |
| 2007 | Ford | F-350 Super Duty | 5.4L | V8 | N/A | OE Type; Gap 0.044 (in); Uses standard 5/8 (in) hex plug socket; One-Piece Shell; Enhanced over OE Design; Plug Type Number 7989; Double Platinum Power |
| 2007 | Ford | Mustang | 4.6L | V8 | N/A | OE Type; Gap 0.044 (in); Uses standard 5/8 (in) hex plug socket; One-Piece Shell; Enhanced over OE Design; Plug Type Number 7989; Double Platinum Power |
| 2007 | Lincoln | Mark LT | 5.4L | V8 | N/A | OE Type; Gap 0.044 (in); Uses standard 5/8 (in) hex plug socket; One-Piece Shell; Enhanced over OE Design; Plug Type Number 7989; Double Platinum Power |
| 2007 | Lincoln | Navigator | 5.4L | V8 | N/A | OE Type; Gap 0.044 (in); Uses standard 5/8 (in) hex plug socket; One-Piece Shell; Enhanced over OE Design; Plug Type Number 7989; Double Platinum Power |
| 2007 | Mercury | Mountaineer | 4.6L | V8 | N/A | OE Type; Gap 0.044 (in); Uses standard 5/8 (in) hex plug socket; One-Piece Shell; Enhanced over OE Design; Plug Type Number 7989; Double Platinum Power |
| 2006 | Ford | Expedition | 5.4L | V8 | N/A | OE Type; Gap 0.044 (in); Uses standard 5/8 (in) hex plug socket; One-Piece Shell; Enhanced over OE Design; Plug Type Number 7989; Double Platinum Power |
| 2006 | Ford | Explorer | 4.6L | V8 | N/A | OE Type; Gap 0.044 (in); Uses standard 5/8 (in) hex plug socket; One-Piece Shell; Enhanced over OE Design; Plug Type Number 7989; Double Platinum Power |
| 2006 | Ford | F-150 | 5.4L | V8 | N/A | OE Type; Gap 0.044 (in); Uses standard 5/8 (in) hex plug socket; One-Piece Shell; Enhanced over OE Design; Plug Type Number 7989; Double Platinum Power |
| 2006 | Ford | F-250 Super Duty | 5.4L | V8 | N/A | OE Type; Gap 0.044 (in); Uses standard 5/8 (in) hex plug socket; One-Piece Shell; Enhanced over OE Design; Plug Type Number 7989; Double Platinum Power |
| 2006 | Ford | F-250 Super Duty | 6.8L | V10 | N/A | OE Type; Gap 0.044 (in); Uses standard 5/8 (in) hex plug socket; One-Piece Shell; Enhanced over OE Design; Plug Type Number 7989; Double Platinum Power |
| 2006 | Ford | F-350 Super Duty | 6.8L | V10 | N/A | OE Type; Gap 0.044 (in); Uses standard 5/8 (in) hex plug socket; One-Piece Shell; Enhanced over OE Design; Plug Type Number 7989; Double Platinum Power |
| 2006 | Ford | F-350 Super Duty | 5.4L | V8 | N/A | OE Type; Gap 0.044 (in); Uses standard 5/8 (in) hex plug socket; One-Piece Shell; Enhanced over OE Design; Plug Type Number 7989; Double Platinum Power |
| 2006 | Ford | Mustang | 4.6L | V8 | N/A | OE Type; Gap 0.044 (in); Uses standard 5/8 (in) hex plug socket; One-Piece Shell; Enhanced over OE Design; Plug Type Number 7989; Double Platinum Power |
| 2006 | Lincoln | Mark LT | 5.4L | V8 | N/A | OE Type; Gap 0.044 (in); Uses standard 5/8 (in) hex plug socket; One-Piece Shell; Enhanced over OE Design; Plug Type Number 7989; Double Platinum Power |
| 2006 | Lincoln | Navigator | 5.4L | V8 | N/A | OE Type; Gap 0.044 (in); Uses standard 5/8 (in) hex plug socket; One-Piece Shell; Enhanced over OE Design; Plug Type Number 7989; Double Platinum Power |
| 2006 | Mercury | Mountaineer | 4.6L | V8 | N/A | OE Type; Gap 0.044 (in); Uses standard 5/8 (in) hex plug socket; One-Piece Shell; Enhanced over OE Design; Plug Type Number 7989; Double Platinum Power |
| 2005 | Ford | Expedition | 5.4L | V8 | N/A | OE Type; Gap 0.044 (in); Uses standard 5/8 (in) hex plug socket; One-Piece Shell; Enhanced over OE Design; Plug Type Number 7989; Double Platinum Power |
| 2005 | Ford | F-150 | 5.4L | V8 | N/A | OE Type; Gap 0.044 (in); Uses standard 5/8 (in) hex plug socket; One-Piece Shell; Enhanced over OE Design; Plug Type Number 7989; Double Platinum Power |
| 2005 | Ford | F-250 Super Duty | 5.4L | V8 | N/A | OE Type; Gap 0.044 (in); Uses standard 5/8 (in) hex plug socket; One-Piece Shell; Enhanced over OE Design; Plug Type Number 7989; Double Platinum Power |
| 2005 | Ford | F-250 Super Duty | 6.8L | V10 | N/A | OE Type; Gap 0.044 (in); Uses standard 5/8 (in) hex plug socket; One-Piece Shell; Enhanced over OE Design; Plug Type Number 7989; Double Platinum Power |
| 2005 | Ford | F-350 Super Duty | 6.8L | V10 | N/A | OE Type; Gap 0.044 (in); Uses standard 5/8 (in) hex plug socket; One-Piece Shell; Enhanced over OE Design; Plug Type Number 7989; Double Platinum Power |
| 2005 | Ford | F-350 Super Duty | 5.4L | V8 | N/A | OE Type; Gap 0.044 (in); Uses standard 5/8 (in) hex plug socket; One-Piece Shell; Enhanced over OE Design; Plug Type Number 7989; Double Platinum Power |
| 2005 | Ford | Mustang | 4.6L | V8 | N/A | OE Type; Gap 0.044 (in); Uses standard 5/8 (in) hex plug socket; One-Piece Shell; Enhanced over OE Design; Plug Type Number 7989; Double Platinum Power |
| 2005 | Lincoln | Navigator | 5.4L | V8 | N/A | OE Type; Gap 0.044 (in); Uses standard 5/8 (in) hex plug socket; One-Piece Shell; Enhanced over OE Design; Plug Type Number 7989; Double Platinum Power |
| 2004 | Ford | F-150 | 5.4L | V8 | N/A | OE Type; Gap 0.044 (in); Uses standard 5/8 (in) hex plug socket; One-Piece Shell; Enhanced over OE Design; Plug Type Number 7989; Double Platinum Power |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
3L3E12405KD3VR14S3VR17YS79897C3E12405ABE370HT0HT1HT15HT2PZH14FPZH1FPZT1FPZT1FF4PZT2FPZT2FF4SP462SP514SP515
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.