PB379-13433 ALUMINIZED 90 DEGREE EXHAUST ELBOW FOR PETERBILT 379

It routes exhaust flow through a 90° turn to connect adjoining exhaust components on compatible setups. The aluminized 90 degree exhaust elbow helps align piping where a straight section won’t fit. It’s commonly used during exhaust repairs or when replacing worn Peterbilt 379 exhaust parts.

It’s designed as a Peterbilt 379 exhaust elbow option and is commonly used as a direct replacement for the corresponding OEM-style elbow. To ensure proper fit, match the angle (90°), pipe diameter, and connection style to your existing exhaust components. If your system uses adapters or reducers, confirm those sizes before installation.

Dry-fit the exhaust elbow 90° first to confirm alignment and clearance, then position clamps evenly before tightening. Use new clamps and inspect mating pipe ends for dents, rust scale, or out-of-round sections that can prevent a good seal. After a short run, recheck clamp torque once the system has heat-cycled.