Trans-Dapt 9485 Double Lower Crankshaft Pulley for Small Block Chevy Long Water Pump

The Trans-Dapt 9485 Double Lower Crankshaft Pulley is designed for Small Block Chevy applications equipped with a long water pump. This two-groove V-belt pulley provides reliable belt engagement for crankshaft-driven accessories while supporting a clean, performance-oriented installation. Its machined aluminum construction combines strength with reduced weight compared with many traditional steel pulleys.
The pulley features a 6.563-inch diameter and a 2.875-inch width, making it suitable for compatible long water pump accessory drive configurations. The precision-machined design helps promote consistent belt tracking and smooth accessory operation when installed with the correct matching components. Confirm crankshaft, water pump, belt, and accessory compatibility before installation.
Feature: Brand - Trans-Dapt
Feature: Part Number - 9485
Feature: Design - Double lower crankshaft pulley
Feature: Belt Type - V-belt
Feature: Groove Count - Two grooves
Feature: Material - Aluminum
Feature: Manufacturing - Machined construction
Feature: Application - Small Block Chevy with long water pump
Feature: Diameter - 6.563 inches
Feature: Width - 2.875 inches
The Trans-Dapt 9485 is sold individually and is intended for replacement or custom accessory drive applications requiring a two-groove lower pulley. Proper alignment is essential for minimizing belt wear and maintaining dependable operation. Inspect the crankshaft snout, pulley mounting surface, belt alignment, and surrounding components before installation, and follow the vehicle or engine manufacturer’s recommended installation procedures.

Features:

• Brand: Trans-Dapt

• Part Number: 9485

• Design: Double lower crankshaft pulley

• Belt Type: V-belt

• Grooves: Two

• Material: Aluminum

• Construction: Machined

• Application: Small Block Chevy with long water pump

• Diameter: 6.563 inches

• Width: 2.875 inches

• Quantity: Sold individually