Main Body Wiring Harness / used
Seller: Marketplace seller
$84
Asking
Quick reference
Identify
- Service part
- Pending
- Block casting
- Pending
- VIN digit 8
- Pending
Years
- Application
- 1987-1989 model years interchange freely
- Application
- 1991-1993 F1ZZ-14401 harnesses
Power
- Engine
- 5L V8 Naturally Aspirated E7TE (225hp)
- Codes
- Pending
- Inventory
- $84 asking
What to know before swapping
Verify build date: 1986 production may carry over 1985-style harnesses with different SEFI injector connectors
Manual transmission cars lack neutral safety switch wiring present in automatic harnesses
California emissions (C-code 5.0L) may include additional O2 sensor heater circuits not present on Federal models
Context
Read the full notes
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Context
Read the full notes
When sourcing a main body wiring harness for your 1987 Ford Mustang 5.0L, target the E7ZZ-14401 series specifically for pre-airbag Fox Body compatibility. The 1987-1989 model years interchange freely, though you must match body styles—coupe harnesses lack the hatchback defrost grid wiring found in E7ZZ-14401-B units, while convertibles require the E7ZZ-14401-C variant with dedicated 12-gauge power top circuits. At the junkyard, inspect the C100 firewall bulkhead connector for green corrosion and verify the 8-pin fuel pump relay connector hasn't melted from high-amperage draw, a common 5.0L failure point. Label the gray and black 8-pin dash connectors before extraction; these differ from 1991-1993 F1ZZ-14401 harnesses. Test continuity on the taillight ground bus (splice S305) as this junction corrodes in hatchbacks, causing intermittent brake lights.
OEM numbers
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Confirmed fitment
Applications
| Year | Make | Model | Engine | Confidence |
|---|---|---|---|---|
| 1987 | Ford | Mustang | 5L V8 Naturally Aspirated E7TE (225hp) | 80% |
Available parts
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