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OE Quality
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Standard Ignition 6943 Spark Plug Wire Set
Ignition Wire Set for Ford Super Duty
Standard Ignition 6943 is a spark plug wire set built for 2017-2022 Ford F-250 Super Duty and 2017-2022 Ford F-350 Super Duty applications. It uses a silicone suppression core with RFI suppression to help maintain stable ignition performance and reduce electrical interference.
Key Features
- Standard Ignition 6943 spark plug wire set for Ford Super Duty trucks
- Fits 2017-2022 Ford F-250 Super Duty and 2017-2022 Ford F-350 Super Duty
- Silicone suppression core with RFI suppression
- Silicone insulation and silicone jacket for heat resistance
- 180-degree spark plug boot design with straight distributor/coil end boot
- Black distributor/coil boot and gray spark plug boot
- Includes heat shields
- 8-cylinder application with 21.25-inch wire leads
Detailed Description
Standard Ignition 6943 is a direct-fit spark plug wire set for Ford F-250 Super Duty and Ford F-350 Super Duty trucks from 2017 through 2022. The wire set uses a silicone suppression core, silicone insulation, and a silicone jacket to support consistent spark delivery in demanding underhood conditions. The 180-degree spark plug boot and straight distributor/coil end boot help match the factory-style routing used on these V8 truck applications. Standard Ignition 6943 also includes heat shields and is built with RFI suppression to help limit radio-frequency interference.
This part cross-references AMS Automotive 4994 and Anchor 9800 for the same application.
What It Helps Address
- Misfires caused by worn or heat-damaged plug wires
- Intermittent ignition performance from cracked insulation
- Radio-frequency interference affecting vehicle electronics
- Hard starting related to weak spark transfer
- Underhood heat exposure that can shorten wire life
Installation Notes and Tips
Fits 2017-2022 Ford F-250 Super Duty, N/A. Fits 2017-2022 Ford F-350 Super Duty, N/A. This wire set only does not contain Direct Ignition Coil boots, so verify your ignition layout before installation. Route each lead to match the original path and confirm boot seating at both ends before starting the engine. Standard Ignition 6943 is intended for 8-cylinder truck applications with 21.25-inch leads.
Quality Assurance
Standard Ignition is a long-established ignition parts brand with coverage across OE-style replacement components. Part number 6943 is built to meet the needs of Ford Super Duty ignition service where heat resistance, suppression, and proper boot configuration matter.
| Brand | Standard Ignition |
|---|---|
| Part Number | 6943 |
| Outside Diameter | 21.25 |
| Core Material | Silicone suppression core |
| Spark Plug End Boot Degree | 180 |
| Boot Color | Black |
| Car/Truck | Truck |
| Coil Wire Included | No |
| Cylinders | 8 |
| Dist/Coil Boot Color | Black |
| Dist/Coil Boot Material | Silicone |
| Dist/Coil End Boot Degree | Straight |
| Distributor Cap Included | No |
| Insulation | Silicone |
| Jacket | Silicone jacket |
| Notes | Includes heat shields |
| Package Quantity | 1 set |
| RFI Suppression | Yes |
| Spark Plug Boot Color | Gray |
| Spark Plug Boot Material | Silicone |
| Spark Plug Wire Lead 2 | 21.25" |
| Spark Plug Wire Lead 3 | 21.25" |
| Spark Plug Wire Lead 4 | 21.25" |
| Spark Plug Wire Lead 5 | 21.25" |
| Spark Plug Wire Lead 6 | 21.25" |
| Spark Plug Wire Lead 7 | 21.25" |
| Spark Plug Wire Lead 8 | 21.25" |
| Total Number of Leads | 8 |
| Wire Color | Gray |
This part fits 12 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2022 | Ford | F-250 Super Duty | 6.2L | V8 | N/A | Wire set only, does not contain Direct Ignition Coil boots |
| 2022 | Ford | F-350 Super Duty | 6.2L | V8 | N/A | Wire set only, does not contain Direct Ignition Coil boots |
| 2021 | Ford | F-250 Super Duty | 6.2L | V8 | N/A | Wire set only, does not contain Direct Ignition Coil boots |
| 2021 | Ford | F-350 Super Duty | 6.2L | V8 | N/A | Wire set only, does not contain Direct Ignition Coil boots |
| 2020 | Ford | F-250 Super Duty | 6.2L | V8 | N/A | Wire set only, does not contain Direct Ignition Coil boots |
| 2020 | Ford | F-350 Super Duty | 6.2L | V8 | N/A | Wire set only, does not contain Direct Ignition Coil boots |
| 2019 | Ford | F-250 Super Duty | 6.2L | V8 | N/A | Wire set only, does not contain Direct Ignition Coil boots |
| 2019 | Ford | F-350 Super Duty | 6.2L | V8 | N/A | Wire set only, does not contain Direct Ignition Coil boots |
| 2018 | Ford | F-250 Super Duty | 6.2L | V8 | N/A | Wire set only, does not contain Direct Ignition Coil boots |
| 2018 | Ford | F-350 Super Duty | 6.2L | V8 | N/A | Wire set only, does not contain Direct Ignition Coil boots |
| 2017 | Ford | F-250 Super Duty | 6.2L | V8 | N/A | Wire set only, does not contain Direct Ignition Coil boots |
| 2017 | Ford | F-350 Super Duty | 6.2L | V8 | N/A | Wire set only, does not contain Direct Ignition Coil boots |
* 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:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.