Walker 42087 Exhaust Y Pipe
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Walker 42087 Exhaust Y Pipe

Brand Walker 42087
Length 21.5
Grade Type Regular
Bend Type Compression
Finish Aluminized
Inlet Quantity 2
Inlet Type 3 bolt loose flange with spherical flare
Material Steel
Mounting Hardware Included No
Outlet Quantity 1
Outlet Type 3 bolt loose flange
Pipe Wall Thickness 0.05
Universal Or Specific Fit Specific
Fits Chevrolet and GMC · 114 vehicles

Specific-fit design. Built for direct replacement on the listed exhaust applications.

Aluminized steel. Helps resist corrosion in demanding exhaust environments.

Precision-checked fit. Manufactured with benders and fixture checking for consistency.

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

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Walker Exhaust Y Pipe 42087

Walker 42087 is a specific-fit exhaust Y pipe built for classic Chevrolet and GMC applications. It uses aluminized steel construction and precision-checked forming to support a direct-fit exhaust repair on the correct vehicle platforms.

Key Features

  • Aluminized steel construction for corrosion resistance and durability.
  • Specific-fit design for direct replacement applications.
  • Compression bend type with a 21.5-inch length.
  • 3-bolt loose flange inlet and outlet connections for secure exhaust attachment.
  • 0.05-inch pipe wall thickness for consistent pipe construction.

Detailed Description

This Walker exhaust Y pipe, part number 42087, is manufactured from aluminized steel and fixture checked for fit accuracy. The pipe is built with two 3-bolt loose flange inlets with spherical flare and one 3-bolt loose flange outlet, making it a practical replacement for exhaust routing where the original Y pipe has deteriorated or no longer seals properly. It is a specific-fit part rather than a universal pipe, which helps simplify matching during exhaust service on Chevrolet and GMC trucks, vans, and passenger cars.

Compatible With classic Chevrolet and GMC applications including Chevrolet C10 Pickup, C20 Pickup, C30 Pickup, K10 Pickup, K20 Pickup, P30 Series, Bel Air, Biscayne, Impala, El Camino, and GMC G15/G1500 Van and G25/G2500 Van. Fits 1960-1966 Chevrolet C10 Pickup, N/A; Fits 1963-1966 Chevrolet C20 Pickup, N/A; Fits 1963-1966 Chevrolet C30 Pickup, N/A; Fits 1960-1966 Chevrolet K10 Pickup, N/A; Fits 1960-1966 Chevrolet K20 Pickup, N/A; Fits 1960-1965 Chevrolet P30 Series, N/A; Fits 1958-1964 Chevrolet Bel Air, N/A; Fits 1958-1964 Chevrolet Biscayne, N/A; Fits 1958-1964 Chevrolet Impala, N/A; Fits 1959-1960 Chevrolet El Camino, N/A; Fits 1968 GMC G15/G1500 Van, N/A; Fits 1968 GMC G25/G2500 Van, N/A.

What It Is Used For

  • Replacing a rusted or damaged exhaust Y pipe.
  • Restoring exhaust flow where the original pipe has cracked or separated.
  • Correcting exhaust leaks at flange connections.
  • Servicing vehicles that require a specific-fit Y pipe layout.

Installation Notes and Tips

Verify the vehicle application, wheelbase, muffler style, and production notes before ordering. This part number 42087 uses 3-bolt loose flange connections, so flange alignment and sealing surfaces should be checked during installation. Mounting hardware is not listed as included.

Quality Assurance

Walker manufactures this pipe from aluminized steel and uses precision benders plus fixture checking to help maintain fit consistency. Part number 42087 is built as a specific-fit exhaust replacement for the listed applications.

Related reading

This part fits 114 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelBody TypeLitersCylindersNotes
1968ChevroletG10 Van——5.0LV81st Design; with Round Muffler
1968ChevroletG20 Van——5.0LV8with Round Muffler
1968GMCG15/G1500 Van——5.0LV8—
1968GMCG25/G2500 Van——5.0LV8—
1967ChevroletG20 Van——4.6LV8with Round Muffler
1966ChevroletC10 Pickup——4.6LV8—
1966ChevroletC20 Pickup——4.6LV8—
1966ChevroletC30 Pickup——4.6LV8—
1966ChevroletK10 Pickup——4.6LV8—
1966ChevroletK20 Pickup——4.6LV8with 127 (in) Wheelbase
1965ChevroletC10 Pickup——4.6LV8—
1965ChevroletC20 Pickup——4.6LV8—
1965ChevroletC30 Pickup——4.6LV8—
1965ChevroletK10 Pickup——4.6LV8—
1965ChevroletK20 Pickup——4.6LV8with 127 (in) Wheelbase
1965ChevroletP30 Series——6.7LV8—
1965ChevroletP30 Series——5.7LV8—
1964ChevroletBel Air——5.3LV8with Single Exhaust
1964ChevroletBel Air——4.6LV8with Single Exhaust
1964ChevroletBiscayne——5.3LV8with Single Exhaust
1964ChevroletBiscayne——4.6LV8with Single Exhaust
1964ChevroletC10 Pickup——4.6LV8—
1964ChevroletC20 Pickup——4.6LV8—
1964ChevroletC30 Pickup——4.6LV8—
1964ChevroletImpala——4.6LV8with Single Exhaust
1964ChevroletImpala——6.7LV8with Single Exhaust
1964ChevroletImpala——5.3LV8with Single Exhaust
1964ChevroletImpala——5.4LV8with Single Exhaust
1964ChevroletK10 Pickup——4.6LV8—
1964ChevroletK20 Pickup——4.6LV8with 127 (in) Wheelbase
1964ChevroletP30 Series——6.7LV8—
1964ChevroletP30 Series——5.7LV8—
1963ChevroletBel Air——5.3LV8with Single Exhaust
1963ChevroletBel Air—Sedan6.7LV8with Single Exhaust
1963ChevroletBel Air—Sedan7.0LV8with Single Exhaust
1963ChevroletBiscayne——5.3LV8with Single Exhaust
1963ChevroletBiscayne——6.7LV8with Single Exhaust
1963ChevroletBiscayne——4.6LV8with Single Exhaust
1963ChevroletC10 Pickup——4.6LV8—
1963ChevroletC10 Pickup——4.6LV8Before 02/27/1963; with 3.25 (in) x 7.75 (in) Oval Muffler
1963ChevroletC20 Pickup——4.6LV8—
1963ChevroletC30 Pickup——4.6LV8—
1963ChevroletImpala——4.6LV8with Single Exhaust
1963ChevroletImpala——6.7LV8with Single Exhaust
1963ChevroletImpala——5.3LV8with Single Exhaust
1963ChevroletImpala——7.0LV8with Single Exhaust
1963ChevroletK10 Pickup——4.6LV8—
1963ChevroletK20 Pickup——4.6LV8with 127 (in) Wheelbase
1963ChevroletP30 Series——6.7LV8—
1963ChevroletP30 Series——5.7LV8—
1962ChevroletBel Air——5.3LV8with Single Exhaust
1962ChevroletBel Air——4.6LV8with Single Exhaust
1962ChevroletBiscayne——5.3LV8with Single Exhaust
1962ChevroletBiscayne——6.7LV8with Single Exhaust
1962ChevroletC10 Pickup——4.6LV8—
1962ChevroletC20 Pickup——4.6LV8with 127 (in) Wheelbase
1962ChevroletImpala——4.6LV8with Single Exhaust
1962ChevroletImpala——6.7LV8with Single Exhaust
1962ChevroletImpala——5.3LV8with Single Exhaust
1962ChevroletK10 Pickup——4.6LV8—
1962ChevroletK20 Pickup——4.6LV8with 127 (in) Wheelbase
1962ChevroletP20 Series——4.6LV8—
1962ChevroletP30 Series——4.6LV8—
1962ChevroletP30 Series——6.7LV8—
1962ChevroletP30 Series——5.7LV8—
1961ChevroletBel Air——6.7LV8with Single Exhaust
1961ChevroletBel Air——5.7LV8with Single Exhaust
1961ChevroletBiscayne——6.7LV8with Single Exhaust
1961ChevroletBiscayne——5.7LV8with Single Exhaust
1961ChevroletC10 Pickup——4.6LV8—
1961ChevroletC10 Pickup——5.7LV8—
1961ChevroletC20 Pickup——5.7LV8with 127 (in) Wheelbase
1961ChevroletC20 Pickup——4.6LV8with 127 (in) Wheelbase
1961ChevroletImpala——4.6LV8with Single Exhaust
1961ChevroletImpala——5.7LV8with Single Exhaust
1961ChevroletImpala——6.7LV8with Single Exhaust
1961ChevroletK10 Pickup——4.6LV8—
1961ChevroletK20 Pickup——4.6LV8with 127 (in) Wheelbase
1961ChevroletP20 Series——5.7LV8—
1961ChevroletP20 Series——4.6LV8—
1961ChevroletP30 Series——4.6LV8—
1961ChevroletP30 Series——5.7LV8—
1960ChevroletBel Air——5.7LV8with Single Exhaust
1960ChevroletBel Air——4.6LV8with Single Exhaust
1960ChevroletBiscayneFleetmaster—4.6LV8with Single Exhaust
1960ChevroletBiscayneBase—5.7LV8with Single Exhaust
1960ChevroletBiscayneFleetmaster—5.7LV8with Single Exhaust
1960ChevroletBiscayneBase—4.6LV8with Single Exhaust
1960ChevroletC10 Pickup——4.6LV8—
1960ChevroletC10 Pickup——5.7LV8—
1960ChevroletC20 Pickup——5.7LV8with 127 (in) Wheelbase
1960ChevroletC20 Pickup——4.6LV8with 127 (in) Wheelbase
1960ChevroletEl Camino——4.6LV8—
1960ChevroletEl Camino——5.7LV8—
1960ChevroletImpala——4.6LV8with Single Exhaust
1960ChevroletImpala——5.7LV8with Single Exhaust
1960ChevroletK10 Pickup——4.6LV8—
1960ChevroletK20 Pickup——4.6LV8with 127 (in) Wheelbase
1960ChevroletP20 Series——5.7LV8—
1960ChevroletP30 Series——5.7LV8—
1959ChevroletBel Air——5.3LV8with Single Exhaust
1959ChevroletBel Air——4.6LV8with Single Exhaust
1959ChevroletBiscayne——4.6LV8with Single Exhaust
1959ChevroletBiscayne——5.7LV8with Single Exhaust
1959ChevroletEl Camino——4.6LV8—
1959ChevroletEl Camino——5.7LV8—
1959ChevroletImpala——4.6LV8with Single Exhaust
1959ChevroletImpala——5.7LV8with Single Exhaust
1958ChevroletBel Air——5.7LV8with Single Exhaust
1958ChevroletBel Air——4.6LV8with Single Exhaust
1958ChevroletBiscayne——4.6LV8with Single Exhaust
1958ChevroletBiscayne——5.7LV8with Single Exhaust
1958ChevroletImpala——4.6LV8with Single Exhaust
1958ChevroletImpala——5.7LV8with Single Exhaust
Directly replaces or cross-references 1 part number
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
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