Dynaflex 36-4045 | 4" O.D. to 4.5" I.D. Exhaust Expander | 7" OAL | Made in USA

Condition: New

Brand: Dynaflex Products

Part Number: 36-4045

Material: 16 Gauge (16GA) Carbon Steel

Country of Manufacture: United States

Product Overview

The Dynaflex 36-4045 is a heavy-duty exhaust expander designed for seamless transitions in commercial and industrial exhaust systems. Proudly MADE IN THE USA, this 7-inch long adapter allows you to bridge 4" O.D. piping to a 4.5" O.D. pipe. Constructed from high-quality 16-gauge carbon steel, it is the professional’s choice for durability and ease of installation.

Technical Specifications

• Part Number: 36-4045

• Connection A (Small): 4" O.D. (Outside Diameter) — Fits inside 4" I.D. pipe/muffler

• Connection B (Large): 4.5" I.D. (Inside Diameter) — Slips over 4.5" O.D. pipe

• Overall Length (OAL): 7"

• Material: 16 Gauge (.065") Carbon Steel

• Finish: Raw / Unfinished (Weld-Ready)

Key Features

• Industrial Grade: Built by Dynaflex to withstand the high-heat cycles and heavy vibrations of diesel engine applications.

• Weld-Ready Finish: Raw carbon steel provides a clean surface for immediate welding—no need to grind off aluminized or zinc coatings.

• Precision Taper: The 7-inch length ensures a smooth expansion of exhaust gases to minimize backpressure and turbulence.

• USA Quality: Manufactured to strict industrial tolerances, ensuring perfectly round ends for a leak-free fit.

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