6PK Multi Rib Crank Pulley

Hard Anodised: Grey OR Black 

The Billet Pro Front Hub with Integrated 6PK Multi‑Rib Pulley is a precision-machined, high-performance accessory compatible with Mazda rotary engines: 12A, 13B, 20B, and 26B. Crafted from aerospace‑grade 6061-T6 aluminium and finished in hard anodised black, this unit combines durability, style, and race-proven functionality.

Key Features

• Versatile Compatibility: Engineered to fit the 12A, 13B, 20B, and 26B platforms without modification.

• Premium Materials: Fully CNC-machined from 6061-T6 billet alloy and protected with a hard anodised coating for excellent corrosion resistance and strength.

• Integrated Multi‑Rib Pulley: Features the wider 6‑PK belt pulley built into the hub for streamlined accessory drive fitment.

• Accurate Timing Marks: Factory‑engraved timing marks allow for precise ignition and cam timing setup—critical for both street and track tuning.

• Fuel & Oil Pump Mounting: Includes a stud pattern designed to accept external fuel pump and dry sump oil pump drive mandrels, simplifying accessory integration and making installation cleaner and more compact.

• Race-Ready Design: Lightweight and structurally robust, ideal for performance builds or endurance applications.

Benefits & Advantages

• Efficient Packaging: Combines pulley and hub into one precision-machined unit, simplifying installation and reducing weight.

• Strong & Lightweight: Billet aluminium construction delivers rigidity without excess mass, reducing rotational inertia and improving throttle response.

• Precision Setup: Integrated marks allow for accurate timing calibration—critical for performance and engine longevity.

• Accessory Integration: Built-in provision for pump mounting removes the need for custom brackets, streamlining engine bay setup.

Ideal For:

• Performance-driven rotary engine builds (street, drag, circuit, endurance)

• Engineers and builders needing a high‑quality, integrated pulley hub

• Users converting to dry-sump or external fuel pump systems