Walker 40203 Exhaust Y Pipe

Brand Walker 40203
Outlet Outside Diameter 2.5
Length 19.875
Grade Type Regular
Bend Type Compression
Finish Aluminized
Inlet Quantity 2
Inlet Type 3 bolt loose flange
Material Steel
Mounting Hardware Included No
Outlet Quantity 1
Outlet Type Pipe connection
Pipe Wall Thickness 0.05
Universal Or Specific Fit Specific
Fits Chevrolet and GMC · 7 vehicles

Specific-fit design. Built for targeted exhaust applications with accurate alignment.

Aluminized steel. Adds durability and corrosion resistance in underbody service.

Precision-checked. Manufactured with benders and fixtures for consistent fit.

Cross-references 93983 for the same application. See all 1.

$93.92Free shipping
In stock · usually ships same day before 1pm CST
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Step 2 — Quantity
Order total $93.92
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Free returns within 60 days if it doesn't fit when fitment is verified.

Overview

Walker 40203 is a specific-fit exhaust Y pipe built for select Chevrolet and GMC trucks. It uses aluminized steel construction and precision bending to support a direct-fit installation with consistent alignment.

  • Specific-fit exhaust Y pipe for targeted applications
  • Aluminized steel construction for corrosion resistance and durability
  • Precision-bent and fixture-checked for accurate fitment
  • 3-bolt loose flange inlet design for exhaust connection
  • 2.5-inch outlet outside diameter

Detailed Description

This Walker exhaust Y pipe is engineered for exhaust routing where two inlet paths merge into a single outlet. The 19.875-inch pipe length, 0.05-inch wall thickness, and compression bend type support a stable replacement layout, while the aluminized finish adds protection in demanding underbody conditions. Fits 1988-1991 Chevrolet S10, N/A and fits 1988-1990 GMC S15, N/A. Part number 40203 is also cross-referenced to 93983 for the same application.

Common Repair Uses

  • Restores a damaged or rusted exhaust Y pipe
  • Addresses exhaust leaks at the pipe connection points
  • Replaces a bent or misaligned exhaust routing section
  • Helps correct fitment issues from worn factory exhaust components

Installation Notes

Verify inlet flange style, outlet diameter, and overall length before installation. This part is listed as a specific-fit component, so matching the vehicle application is important. Mounting hardware is not stated as included in the product data.

Quality Assurance

Walker manufactures this pipe with precision benders and fixture checking to help maintain consistent fit and installation accuracy. The aluminized steel construction supports long-term service in exhaust applications. Part number 40203 identifies this exact exhaust Y pipe.

This part fits 7 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelDrive TypeTransmissionLitersCylindersNotes
1991ChevroletS10RWDAutomatic4.3LV6—
1990ChevroletS10RWDAutomatic4.3LV6—
1990GMCS15RWDAutomatic4.3LV6—
1989ChevroletS10RWD—4.3LV6—
1989GMCS15RWD—4.3LV6—
1988ChevroletS10RWD—4.3LV6—
1988GMCS15RWD—4.3LV6—
Directly replaces or cross-references 1 part number
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
93983