Diesel RX DRX01004 Glow Plug Relay / Controller for 7.3L Powerstroke

Restore reliable cold starts and protect your glow plug system with the Diesel RX DRX01004 Glow Plug Controller. This high-quality direct replacement is designed for 1994.5–2003 Ford 7.3L Powerstroke diesel engines and addresses a common failure point often overlooked when diagnosing hard starts or repeated glow plug issues.

Many 7.3 Powerstroke owners replace glow plugs only to experience the same problems again. A failing factory glow plug controller is frequently the root cause. The Diesel RX unit is built with upgraded internal components and superior insulation compared to the original equipment part, delivering improved durability, better resistance to heat/moisture/vibration, and more consistent performance.

Key Features:

• Higher-quality internal components than OEM
• Improved insulation for better protection against heat, moisture, and vibration
• Increased durability and long-term reliability
• Helps prevent premature or repeated glow plug failures
• Direct-fit replacement for the factory glow plug controller/relay
• 1-year unlimited mileage warranty

Fitment:
1994.5–2003 Ford 7.3L Powerstroke (F-Series, Excursion, and related applications)

Whether you’re dealing with hard cold starts, intermittent glow plug operation, or simply performing preventive maintenance, the Diesel RX DRX01004 is a smart upgrade that helps keep your 7.3 Powerstroke starting strong in all conditions.