Walker 40370 Exhaust Y Pipe

Walker 40370 Exhaust Y Pipe for Ford Trucks

Walker 40370 is a specific-fit exhaust Y pipe built for select 1977-1979 Ford F-100 and F-150 applications, plus 1978-1979 Ford F-250 models and 1977 Ford F-250 with catalytic converter. It is made from aluminized steel and formed with precision bending for a direct-fit exhaust repair.

Key Features

• Specific-fit exhaust Y pipe for confirmed Ford truck applications
• Aluminized steel construction for corrosion resistance and durability
• 2-bolt loose flange with flare inlet design
• 2.5-inch outlet outside diameter
• 23-inch overall length
• 0.054-inch pipe wall thickness
• Compression bend type for accurate routing
• Walker 40370 for direct replacement service

Detailed Description

Walker 40370 is an exhaust Y pipe engineered for a precise fit on 1977-1979 Ford F-100, 1977-1979 Ford F-150, and 1978-1979 Ford F-250 trucks, with an additional 1977 Ford F-250 application equipped with a catalytic converter. The aluminized steel finish helps the pipe stand up to everyday exhaust heat and road exposure, while the fixture-checked, precision-bent construction supports accurate alignment during replacement. If you are servicing a Ford F-100, Ford F-150, or Ford F-250 exhaust system, this part number provides a direct replacement path for the original routing.

This part cross-references Ford OE number D9TZ5246AB for the same application.

What It Helps Repair

• Exhaust leaks at the Y pipe section
• Rust or corrosion in the original pipe
• Cracked or damaged exhaust routing near the manifold connection
• Restricted exhaust flow caused by a deteriorated pipe
• Fitment issues from a worn or previously repaired exhaust section

Installation Notes and Tips

Verify the vehicle year, model, and catalytic converter configuration before installation. This Walker 40370 exhaust Y pipe uses a 2-bolt loose flange with flare inlet and a pipe connection outlet, so matching the existing exhaust layout is important for proper alignment. Compare the original pipe length, outlet diameter, and connection style before beginning the repair on your Ford truck.

Quality Assurance

Walker manufactures this pipe with precision benders and fixture checking to support consistent fitment and installation accuracy. The aluminized steel construction is selected for durability in exhaust service.