Wilwood 120-13437-BK DynaPro 6A DP6A 6-Piston Lug Mount Caliper Black LH 1.10in

Vehicle Fitment

• Universal - Compatible with any application using 5.25" lug mount pattern and 1.10" wide rotors up to 13.00" diameter
• Direct interchange with all 5.25" pattern lug mount Wilwood DynaPro and Dynalite calipers
• Compatible with custom, show, street performance, road race, rally, and competition applications

Fitment Notes

• Left hand (LH) caliper - order 120-13438-BK for the right hand caliper to complete an axle pair
• 5.25" lug mount pattern - confirm your spindle, bracket, or existing caliper mounting uses this pattern before purchase
• Designed for 1.10" wide rotors and rotor diameters up to 13.00" - confirm rotor dimensions match your application
• Direct bolt-on interchange with all 5.25" pattern Wilwood DynaPro and Dynalite lug mount calipers - no bracket modification required
• Sold individually - two required for a complete axle
• Brake pads and mounting brackets are not included - confirm compatible pad compound (7812 series) for your application
• Professional installation by a qualified brake technician is strongly recommended

Features

• Reinforced triple bridge construction with five high-strength steel bridge bolts - the strongest and stiffest DP6 caliper Wilwood has ever built
• Forged aluminum body - FEA-optimized for superior clamping efficiency and maximum structural integrity under load
• Six pistons in a differential bore configuration (1.62"/1.12"/1.12") deliver progressive, balanced pad loading across the full friction surface
• Stainless steel pistons with high-temperature seals resist corrosion, retard heat transfer to brake fluid, and provide reliable long-term service life
• Direct interchange with all 5.25" pattern lug mount DynaPro and Dynalite calipers for easy upgrade or replacement
• 7.3 sq. in. pad area provides substantial friction surface for high brake torque output
• Black high-temp, brake fluid-resistant powder coat finish

Specifications

• Series: Forged DynaPro 6A (DP6A)
• Piston Quantity: 6
• Piston Bore Sizes: 1.62" / 1.12" / 1.12" (differential bore)
• Piston Material: Stainless Steel
• Compatible Rotor Width: 1.10"
• Maximum Rotor Diameter: 13.00"
• Pad Area: 7.3 sq. in.
• Mounting: 5.25" Lug Mount
• Mount Side: Left Hand (LH)
• Body Material: Forged Aluminum
• Finish: Black Powder Coat (High-Temp, Brake Fluid Resistant)
• Parking Brake Provision: No
• Fittings Included: Yes
• Brake Pads Included: No
• Brackets Included: No
• Quantity: Sold Individually

Included Components

• 1x Wilwood Forged DynaPro 6A Lug Mount Brake Caliper - Black, Left Hand (120-13437-BK)
• Brake line fittings

Product Description

The Wilwood 120-13437-BK is a left-hand Forged DynaPro 6A (DP6A) six-piston lug mount brake caliper in black powder coat, combining race-proven technology with a contemporary design suitable for custom builds, show vehicles, street performance, road race, and competition applications. The DP6A represents the newest and most advanced iteration of the DynaPro series, featuring a reinforced triple bridge construction with five high-strength steel bridge bolts - making it the strongest and stiffest DP6 caliper Wilwood has ever produced.

The differential bore piston configuration (1.62"/1.12"/1.12") progressively loads the brake pad across its full 7.3 sq. in. friction surface for balanced pad wear and maximum brake torque output. Six stainless steel pistons with high-temperature seals deliver reliable performance and excellent thermal management across the full range of street and competition operating conditions. The 5.25" lug mount pattern provides direct interchange compatibility with all Wilwood DynaPro and Dynalite lug mount calipers on the same pattern, making the DP6A an easy upgrade path for existing DynaPro-equipped builds. Order 120-13438-BK for the matching right-hand caliper. Sold individually.