KOEED · Automotive Electrical · OEM Relays · In stock
What Is the Ford F80B-14B192-AA Relay?
The F80B-14B192-AA is a genuine Ford OEM 4-pin normally-open electromagnetic relay rated for 70 amps at 12V DC. The "F8" prefix in the Ford engineering part number identifies this as a 1998 model-year design release, and "14B192" is Ford's standard base number for relays. At 70 amps, this is a high-current relay compared to the common 30A/40A ISO micro relays — it is designed for circuits that draw substantial current, such as diesel engine glow plug systems, electric cooling fan high-speed circuits, ABS pump motor control, and secondary air injection pump switching. The 4-pin configuration (pins 30, 85, 86, and 87) provides a single normally-open contact path — when the coil is energized with 12V, the contact closes and current flows from pin 30 to pin 87.
In short: If you are replacing a failed Ford OEM relay in a high-current circuit on a 1998-newer Ford vehicle — particularly glow plug relays on PowerStroke diesel applications — the F80B-14B192-AA is the exact Ford engineering part. In stock at koeed.com.
High-Current Relay vs. Standard ISO Relay: What Changes at 70 Amps
A 70-amp relay is physically different from the common 30/40A relays found in most automotive fuse boxes. Understanding these differences helps you avoid installing the wrong type:
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Terminal size: The 70A relay uses wider spade terminals (often 6.3mm or 9.5mm blade width) to handle higher current without excessive contact resistance and heating. The relay socket and wiring harness must be designed for these larger terminals — a standard ISO 280 relay socket will not physically fit.
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Coil current draw: To close contacts against the heavier spring pressure needed for a 70A rating, the coil draws more current than a 30/40A relay — typically 300-500mA versus 150-200mA. Ensure your control circuit (ECU output, switch, or timer module) can supply this current without voltage drop.
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Mounting bracket: 70A relays often include a metal mounting tab or bracket because they generate more heat at the contacts than smaller relays. The bracket serves as a heat sink path to the vehicle chassis and provides mechanical support for the heavier-gauge wiring connected to the terminals.
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Contact material: Higher-current relays use silver-alloy contacts (often silver-tin-oxide or silver-cadmium-oxide) that resist welding under high inrush currents. Standard relays may use silver-nickel contacts that are adequate for 30A but would weld at 70A inrush.
Key Specifications
| Ford Part Number |
F80B-14B192-AA |
| Type |
4-pin SPST-NO electromagnetic relay |
| Coil Voltage |
12V DC |
| Contact Rating |
70A at 12V DC |
| Terminal Layout |
4 pins (30, 85, 86, 87) |
| Engineering Year |
1998 (F8 prefix) |
| Typical Applications |
Glow plugs, cooling fan, ABS pump, air injection pump |
| Condition |
New |
Ford part numbers with "AA" suffix indicate the original engineering release level. There may be later revisions (AB, AC, etc.) that supersede this part. Check your vehicle's service manual or Ford's parts catalog for the correct current service part number for your VIN.
Frequently Asked Questions
"This relay has four pins. My old relay has five. Can I still use this one?"
No — a 4-pin relay cannot directly replace a 5-pin relay. The 5th pin (pin 87a) on a 5-pin relay provides a normally-closed contact that is connected to pin 30 when the relay is NOT energized. A 4-pin relay has no normally-closed contact. If your vehicle's circuit relies on the NC contact for any function — for example, a two-speed fan circuit that defaults to low speed via a resistor through 87a and switches to direct power through 87 — removing the NC path will break the default-speed circuit. However, if your original 5-pin relay socket has pin 87a unwired (no wire going to that cavity), a 4-pin relay will work because the NC function was not being used. Always check the wiring diagram before substituting pin counts.
"Will this relay work for a 7.3L PowerStroke glow plug system?"
The 7.3L PowerStroke diesel (1994.5-2003) uses a glow plug relay (GPR) mounted on the passenger side valve cover area. The factory part numbers for the 7.3L GPR include F7TZ-12B533-AA and similar. The F80B-14B192-AA is a different Ford application — the base number 14B192 indicates a general-purpose relay rather than the glow-plug-specific 12B533 base number. While electrically they may have similar ratings (both are high-current 12V relays), the mounting bracket, terminal orientation, and connector compatibility will differ. Always replace with the exact Ford part number specified for your application. If you are unsure, send us your VIN and we can verify the correct glow plug relay part number.
"The old relay has a resistor across the coil terminals. Does this one?"
Some Ford relays include a coil suppression resistor soldered externally across pins 85 and 86. This resistor absorbs the reverse-voltage spike when the coil de-energizes, reducing electromagnetic interference (EMI) that could affect nearby sensors or the ECU. The presence or absence of this resistor depends on the specific relay application — relays in ECU-controlled circuits (like fuel pump or cooling fan control) often include suppression, while relays triggered by a simple switch may omit it. Check the old relay for an external component between the coil terminals. If present and your new relay does not include one, install a 470-ohm, 1-watt resistor between pins 85 and 86 to replicate the suppression.
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koeed.com supplies OEM and aftermarket automotive relays — including Ford, GM, Chrysler, Toyota, and European vehicle applications — to independent repair shops, fleet maintenance departments, and automotive electricians worldwide. For VIN-specific part number verification, email Moritta@KOEED.COM.