Product Attributes Core Height: 18 1/16 in Core Width: 26 5/16 in Core Thickness: 1 in Co...

Product Attributes Core Height: 18 1/16 in Core Width: 26 5/16 in Core Thickness: 1 in Co...

Product Attributes Core Height: 18 1/8 in Core Width: 26 11/16 in Core Thickness: 1 in Co...

Product Attributes Core Height: 28 1/4 in Core Width: 17 1/4 in Core Thickness: 5/8 in Co...

Product Attributes Core Height: 34 in Core Width: 17 1/4 in Core Thickness: 1 in Core Thi...

Product Attributes Core Height: 34 in Core Width: 17 1/4 in Core Thickness: 1 in Core Thi...

Product Attributes Core Height: 34 in Core Width: 17 1/4 in Core Thickness: 1 in Core Thi...

Product Attributes Core Height: 34 in Core Width: 17 1/4 in Core Thickness: 1 in Core Thi...

Fits the following 2003 GMC Sierra 1500 applications: GMC Sierra 1500 4.3L V6 — GAS OE-style di...

Fits the following 2003 GMC Sierra 1500 applications: GMC Sierra 1500 4.8L V8 — GAS OE-style di...

Fits the following 2003 GMC Sierra 1500 applications: GMC Sierra 1500 4.8L V8 OE-style direct-fit...

Fits the following 2003 GMC Sierra 1500 applications: GMC Sierra 1500 5.3L V8 — GAS OE-style di...

Fits the following 2003 GMC Sierra 1500 applications: GMC Sierra 1500 5.3L V8 OE-style direct-fit...

Fits the following 2003 GMC Sierra 1500 applications: GMC Sierra 1500 5.3L V8 OE-style direct-f...

Fits the following 2003 GMC Sierra 1500 applications: GMC Sierra 1500 6.0L V8 OE-style direct-fit...

Fits the following 2003 GMC Sierra 1500 applications: GMC Sierra 1500 6.0L V8 OE-style direct-f...

Fits the following 2003 GMC Sierra 1500 HD applications: GMC Sierra 1500 HD 6.0L V8 OE-style dire...

Fits the following 2003 GMC Sierra 1500 HD applications: GMC Sierra 1500 HD 6.0L V8 OE-style di...

Fits the following 2003 GMC Sierra 2500 applications: GMC Sierra 2500 6.0L V8 OE-style direct-fit...

Fits the following 2003 GMC Sierra 2500 applications: GMC Sierra 2500 6.0L V8 OE-style direct-f...

Fits the following 2003 GMC Sierra 2500 HD applications: GMC Sierra 2500 HD 6.0L V8 OE-style dire...

Fits the following 2003 GMC Sierra 2500 HD applications: GMC Sierra 2500 HD 6.0L V8 OE-style di...

Fits the following 2003 GMC Sierra 3500 applications: GMC Sierra 3500 6.0L V8 OE-style direct-fit...

Fits the following 2003 GMC Sierra 3500 applications: GMC Sierra 3500 6.0L V8 OE-style direct-f...