12V Glow Plug Relay F81Z-12B533AC for Ford 94-03 7.3L F250 F350 Super Duty
$42.39
Sale price
$42.39
Regular price
Skip to product information
SKU:
ZZ3F02379
Same day shipping if ordered by 4PM CST.
12V Glow Plug Relay F81Z-12B533AC for Ford 94-03 7.3L F250 F350 Super Duty
$42.39
In Stock
$42.39
Sale price
$42.39
Regular price
Part Number(s)
Estimated delivery between
Let Northline Parts Do the Heavy Lifting for You!
Not sure which part you need? Our team can help you find the right replacement.
Parts Support Hours: Monday–Friday, 8:00 AM–5:00 PM CT
Live Chat: Available 24/7
I reached out for some replacement head bolts and they responded quickly with a few questions and cautionary information and is sending me some bolts. Great customer service! Thanks
Edward H. — Verified customer
Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
Compatible equipment / model
12V Glow Plug Relay for Ford 94-03 7.3L F250 F350 Super Duty
This 12V Glow Plug Relay F81Z-12B533AC is a direct replacement part designed for Ford 1994-2003 7.3L diesel engines, specifically for F250 and F350 Super Duty trucks. It controls the glow plug system to ensure reliable starting in cold conditions. This relay is for Ford Super Duty models with the 7.3L engine, providing the correct switching for the heating circuit.
Overview
This 12V Glow Plug Relay for Ford 94-03 7.3L F250 F350 Super Duty is an essential electrical component that manages power to the glow plugs, enabling efficient cold starts. It is engineered for Ford diesel trucks, ensuring the 12V system correctly energizes the glow plugs for a predetermined time. This relay is a direct replacement for a worn or failed unit, restoring proper starting functionality.
Built For Performance
- Rated for 12V electrical systems used in light trucks
- Direct OEM style connection for a hassle-free installation
- Handles high current draw from the glow plug circuit
- Sealed construction protects against moisture and debris
- Meets or exceeds original equipment specifications
Fits These Machines
- for Ford F250 with 7.3L Diesel
- for Ford F350 with 7.3L Diesel
- for Ford Super Duty with 7.3L Diesel
On-The-Job Use
- Facilitates engine start in freezing temperatures
- Ensures reliable operation for work trucks used in construction or agriculture
- Reduces starter motor strain by preheating the cylinders
- Supports both daily commuting and heavy-duty hauling
Specs At A Glance
| Part Number(s) | F81Z-12B533AC |
| Voltage | 12V |
| Compatible Engine | 7.3L Diesel |
Good To Know
Q: What are the symptoms of a failing glow plug relay? A: Typical symptoms include slow cranking, white smoke upon startup, or a no-start condition in cold weather. A faulty relay may also click repeatedly or show signs of melting or corrosion.
Q: Is this relay the same as the one for 6.0L engines? A: No, the 7.3L and 6.0L Power Stroke engines use different glow plug relay designs and part numbers. This specific relay is only for the 7.3L engine in 94-03 models.
Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.