Exterior Components› Body Panels and Components

Goodmark/ProEFX

RADIATOR SUPPORT; UPPER PLATE; 63 I

$82.73

SKU: G00Z GMK4043320631

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Special Order
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Goodmark GMK4043320631 is an upper plate radiator support designed for the 1963 Impala, Bel Air, and Chevrolet Biscayne. This direct-fit replacement part ensures proper header panel attachment.

It replaces OE part number 3819898 and part number 4043-320-631. The support has package dimensions of 24.00 inches in depth, 12.00 inches in height, and 12.00 inches in width.

Fitment

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Specifications

BrandGoodmark/ProEFX
Part NumberG00Z GMK4043320631

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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