Wilwood Caliper-GNX4 1.88in Pistons 1.00in Disc

GNX4 calipers are the product of Wilwood's in-house FEA design and 3-D modeling technology. With its unyielding strength and superior piston design, the GNX4 generates positive pedal response and high clamping efficiency with a substantial weight savings over comparable OE Calipers. Base model calipers feature a natural aluminum finish protected by a durable clear coat anodizing. Forged billet aluminum bodies, stainless steel pistons, and high-temperature seals put an end to the rust, bore pitting, and seal failures that plague many OE caliper design. Warning: Current GNX4 caliper assemblies are designed solely for use with DOT 5 fluids and should not be used with DOT 3, 4 or 5.1 fluids.

Note for Pistons, Rings, Rotors, Rods and engine internals

Unless otherwise specified, some brands supply brake rotors, pistons, strut mounts, rods and rings separately. In some cases, titles may indicate plural, or 'set' - eg the term “ring set” often refers to the rings for a single piston only. If you’re unsure about what’s included with this product, please contact our team for clarification.

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Product Details

Reference Information

Brake Caliper, GNX4 Series, 4-piston, Aluminum, Clear Anodized, Wilwood Logo, Each

Wilwood's GNX4 calipers are the product of their in-house FEA design and 3-D modeling technology. With its unyielding strength and superior piston design, the GNX4s generate positive pedal response and high clamping efficiency with substantial weight savings over comparable OE calipers. Base model calipers feature a natural aluminum finish protected by a durable clearcoat anodizing. Forged billet aluminum bodies, stainless steel pistons, and high-temperature seals put an end to the rust, bore pitting, and seal failures that plague many OE caliper designs.

Note: Current GNX4 caliper assemblies are designed solely for use with DOT 5 fluids and should not be used with DOT 3, 4, or 5.1 fluids.