Description
Product Overview
The Tenneco 5.0 90DEG exhaust elbow is a precision‑engineered component designed for 1981‑1987 Freightliner FLC120 trucks. Constructed from aluminized steel, the elbow provides excellent corrosion resistance while maintaining the strength required for heavy‑duty exhaust systems. With a bolt‑on installation type and OE‑style bends, hangers, and connectors, the part fits directly into the vehicle’s exhaust pathway, matching the original equipment angle for optimal flow. Key specifications include a 1‑pound weight, dimensions of 23 x 2 x 2 inches, and a center‑position design that aligns perfectly with the factory exhaust layout.
Usage
Designed for commercial and fleet applications, this exhaust elbow performs reliably in a variety of operating conditions—from city delivery routes to long‑haul highway duty. The durable aluminized finish protects against road salt, moisture, and temperature extremes, making it suitable for both seasonal and year‑round use. Installers and mechanics will appreciate the straightforward bolt‑on process, which reduces labor time and eliminates the need for custom fabrication. Ideal for owners seeking to maintain OEM performance while extending the lifespan of their exhaust system.

Why Choose Us
Tenneco’s reputation for quality automotive components backs every exhaust elbow we produce. Our manufacturing process includes precision stamping, aluminized coating, and rigorous quality inspections to ensure each part meets strict OEM tolerances. The direct‑fit design eliminates guesswork, guaranteeing a seamless integration with Walker catalytic converters and mufflers for a complete, high‑performance exhaust upgrade. With a 4.9‑star rating from 37 verified customers, this elbow has proven its reliability and value in real‑world applications.
Key Features
- Aluminized steel construction for superior corrosion resistance
- Exact 90‑degree angle ensures optimal exhaust flow and back‑pressure control
- Bolt‑on installation eliminates the need for welding or custom fitting
- Vehicle‑specific fit for 1981‑1987 Freightliner FLC120 models
- OE‑style bends, hangers, and connectors for a seamless, factory‑like installation
FAQ
Does this elbow require any welding?
No. The elbow is designed as a bolt‑on component with pre‑drilled holes and OE‑style connectors, allowing a straightforward installation using standard fasteners.
Will the aluminized coating rust over time?
The aluminized coating is specifically engineered to inhibit corrosion, even in harsh environments with road salt and moisture. While no coating is completely impervious, it significantly extends the part’s service life compared to untreated steel.
Is this part compatible with Walker catalytic converters?
Yes. The elbow’s dimensions and mounting points are engineered to work seamlessly with premium Walker accessories, providing a complete exhaust system upgrade when paired together.
Can I install this elbow myself?
If you have basic mechanical skills and the appropriate tools, the bolt‑on design makes DIY installation feasible. However, for optimal fit and safety, professional installation is recommended.
What is the warranty on this exhaust elbow?
Tenneco offers a limited warranty covering manufacturing defects. Refer to the product packaging or the official Tenneco website for specific warranty terms and conditions.




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