OE Quality
60-Day Returns

Dorman 598-100 EGR Line
Durable Stainless Steel EGR Line for Ford and Mercury Vehicles
The Dorman 598-100 Exhaust Gas Recirculation (EGR) Line is engineered to meet the emission control needs of select Ford and Mercury models. Designed with precision, this stainless steel EGR tube ensures reliable performance and long-lasting durability for your Cougar or Thunderbird.
- Constructed from corrosion-resistant stainless steel for enhanced durability
- Measures 14.8 inches in length with a 0.3-inch inside diameter and 0.68-inch outside diameter
- Features threaded end connections for secure and leak-free installation
- Includes mounting hardware for convenient setup
- Equipped with two connectors and one hose/line for proper fitment
- Package contains one complete EGR tube ready for replacement
Product Details and Specifications
The Dorman 598-100 EGR line is specifically designed to maintain proper exhaust gas recirculation in Ford Cougar and Mercury Thunderbird models. Its stainless steel construction resists rust and corrosion, which is critical for components exposed to high temperatures and exhaust gases. The 14.8-inch length and precise diameter measurements ensure compatibility with the factory system, while the threaded ends provide a secure connection to prevent leaks. This part includes all necessary mounting hardware, simplifying the installation process.
Compatible Vehicles and Applications
This EGR line is compatible with the following vehicles:
- Ford Cougar
- Mercury Thunderbird
It is designed to replace worn or damaged EGR tubes that can cause emission control issues or engine performance problems.
Common Issues Addressed by the Dorman 598-100 EGR Line
- Exhaust gas leaks due to cracked or corroded EGR tubes
- Check engine light triggered by faulty EGR flow
- Reduced engine efficiency and increased emissions
- Rough idling or stalling caused by improper exhaust gas recirculation
- Failed emissions tests related to EGR system malfunctions
Installation Notes and Tips
When installing the Dorman 598-100 EGR line, ensure all connections are clean and free of debris. Use the included mounting hardware to secure the tube firmly in place. Threaded ends require careful tightening to avoid cross-threading or leaks. It is recommended to inspect related EGR components during installation to ensure overall system integrity.
Quality Assurance and Warranty
Dorman parts are manufactured to meet or exceed OEM standards. The 598-100 EGR line undergoes rigorous quality checks to ensure durability and fitment accuracy. This product comes with a limited warranty covering defects in material and workmanship, providing confidence in its long-term performance.
| Brand | Dorman |
| Part Number | 598-100 |
| Connector Quantity | 2 |
| End 1 Type | Threaded |
| Inside Diameter | 0.3 |
| Length | 14.8 |
| Material | Stainless Steel |
| Mounting Hardware Included | Yes |
| Number Of Hoses/Lines | 1 |
| Outside Diameter | 0.68 |
| Package Contents | EGR Tube |
This part fits 10 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1993 | Ford | Thunderbird | 3.8L | V6 | N/A | |
| 1993 | Mercury | Cougar | 3.8L | V6 | N/A | |
| 1992 | Ford | Thunderbird | 3.8L | V6 | N/A | |
| 1992 | Mercury | Cougar | 3.8L | V6 | N/A | |
| 1991 | Ford | Thunderbird | 3.8L | V6 | N/A | |
| 1991 | Mercury | Cougar | 3.8L | V6 | N/A | |
| 1990 | Ford | Thunderbird | 3.8L | V6 | N/A | |
| 1990 | Mercury | Cougar | 3.8L | V6 | N/A | |
| 1989 | Ford | Thunderbird | 3.8L | V6 | N/A | |
| 1989 | Mercury | Cougar | 3.8L | V6 | N/A |
* 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:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.