Dorman A/C Bypass Pulley Durable Aluminum

Description

Product Overview

The Dorman A/C Compressor Bypass Pulley is engineered to maintain belt drive continuity after the air‑conditioning compressor is removed. Made from high‑grade aluminum, the pulley combines lightweight construction with exceptional durability, resisting corrosion and wear in demanding engine bays. Precise dimensions (8 x 6.7 x 9.5 inches) and a weight of 2.05 lb ensure it matches the original OEM part numbers (3155NK, 4716016, 57183, etc.) for a perfect fit across a wide range of makes and models.

Usage

Designed for automotive repair shops and DIY enthusiasts, this bypass pulley is ideal for vehicles where the A/C compressor has failed but the belt system must remain operational. It works in any climate, from hot summer drives to cold winter starts, keeping accessories like the alternator and power steering functional.

Why Choose Us

Dorman’s reputation for quality automotive components backs this pulley with rigorous testing and a 4.3‑star customer rating. The part is manufactured to exacting standards, guaranteeing a fit that mirrors the original equipment. Its cost‑effective design eliminates the need for a full compressor replacement, saving both time and money while delivering reliable performance.

Key Features

• Aluminum construction for lightweight strength and corrosion resistance
• Retains use of the standard drive belt, avoiding costly belt replacement
• Direct‑mount design uses existing compressor mounting points for quick installation
• Extensively tested to meet OEM specifications and ensure long service life
• Compatible with multiple OEM part numbers for broad vehicle coverage

FAQ

Can this pulley be used on any vehicle?

The pulley fits a wide range of models that share the listed OEM part numbers. Verify compatibility by entering your vehicle’s make, model, and trim into Dorman’s fit‑tool before purchase.

Do I need to replace the drive belt when installing the bypass pulley?

No. The bypass pulley is designed to work with the existing drive belt, eliminating the need for a new belt unless the current one shows signs of wear.

Is special tooling required for installation?

Installation uses the same bolts and mounting points as the original compressor, so standard hand tools are sufficient for a secure fit.

What warranty does Dorman provide for this part?

Dorman offers a limited warranty that covers defects in material and workmanship, reflecting confidence in the pulley’s durability.

How does the bypass pulley affect A/C system performance?

The pulley does not restore cooling; it simply maintains belt drive for other accessories. For a functional A/C system, a new compressor is required.