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DormanPart #: 674-323
Dorman 674-323 Exhaust Manifold - Left
⚙️ 11 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$238.30Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship
Most orders ship same-day if ordered before 1pm CST.
✅OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Ford, F-150
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST
Not what you need? Click here for all Exhaust Manifold options
Dorman 674-323 Exhaust Manifold - Left
| Brand | Dorman |
| Part Number | 674-323 |
| Material | Acero inoxidable fundido |
| Material | Cast stainless steel |
| Color | Gris metálico |
| Color | Metallic gray |
| Port Shape | Redondo |
| Port Shape | Round |
| Finish | Sin recubrimiento |
| Finish | Uncoated |
| Collector Port Diameter | 52.4 |
| Oxygen Sensor Port | No |
| Oxygen Sensor Port | Non |
| Tube Wall Thickness | 0.125 |
| Mounting Hardware Included | No |
| Mounting Hardware Included | Non |
| Grade Type | Reemplazo estándar |
| Grade Type | Standard replacement |
| Gasket Or Seal Included | Oui |
| Gasket Or Seal Included | Sí |
| Gasket Or Seal Included | Yes |
| Mounting Hole Quantity | 8 |
| Heat Shield Included | No |
| Heat Shield Included | Non |
| Contenidos del paquete | 1 junta de entrada |
| Contenidos del paquete | 1 múltiple de escape |
| Contenidos del paquete | 2 tornillos |
| Contenidos del paquete | 2 tuercas |
| Package Contents | 1 exhaust manifold |
| Package Contents | 1 inlet gasket |
| Package Contents | 2 bolts |
| Package Contents | 2 nuts |
This part fits 11 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2025 | Ford | F-150 | 5.0L | V8 | Left | |
| 2024 | Ford | F-150 | 5.0L | V8 | Left | |
| 2023 | Ford | F-150 | 5.0L | V8 | Left | |
| 2022 | Ford | F-150 | 5.0L | V8 | Left | |
| 2021 | Ford | F-150 | 5.0L | V8 | Left | |
| 2020 | Ford | F-150 | 5.0L | V8 | Left | |
| 2019 | Ford | F-150 | 5.0L | V8 | Left | |
| 2018 | Ford | F-150 | 5.0L | V8 | Left | |
| 2017 | Ford | F-150 | 5.0L | V8 | Left | |
| 2016 | Ford | F-150 | 5.0L | V8 | Left | |
| 2015 | Ford | F-150 | 5.0L | V8 | Left |
* 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:
FL3Z9431A
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.