Sunluway 522 Large Gear and Pulley Puller — 4140 Steel, Black Powder Coat, OEM Fit

The Sunluway 522 Large Gear and Pulley Puller is a heavy-duty replacement tool designed to remove gears and pulleys with tapped holes, matching Ford D80L-522-A and OTC 303-D025/522 fitment while delivering durable 4140 steel construction.

Built to handle demanding shop and field work, this puller spans a wide jaw range, uses a long forcing screw for deep engagement, and accepts cap screws up to 1/2" diameter. It copies the mounting geometry of common OEM pullers so technicians can swap it into existing procedures and fixtures without reworking tooling or adapters.

How wide a gear or pulley can this puller handle?

The Sunluway 522 gives a flexible gripping range that works on many medium to large automotive and industrial components. Its jaws spread from 2 inches to 7-3/4 inches, accommodating a broad variety of pulleys and gears used on engines and drivetrains.

• Minimum spread: 2.0 inches
• Maximum spread: 7.75 inches
• Ideal for pulleys and gears within that diameter range

What are the key dimensions and hardware details?

This puller is sized for robust jobs: the block width and forcing screw length give stable leverage and deep reach. The central forcing screw is a 3/4"-16 thread and measures 11-5/8" long, while the main block width is 8-1/4" for solid support.

• Forcing screw: 3/4"-16 x 11-5/8" long
• Block width: 8-1/4" for stable clamping
• Accepts cap screws up to 1/2" diameter

Which applications and fastener sizes does it accept?

Designed for parts with tapped holes, the puller accepts standard cap screw sizes so you can use existing bolts or purchase common fasteners. It duplicates the capability of Ford D80L-522-A and OTC 303-D025/522 tools, making it suitable for automotive service, light industrial maintenance, and shop repair tasks.

• Fits cap screws up to 1/2" diameter
• Works on parts with tapped holes—gears, pulleys, flywheels
• Compatible with OEM-style mounting patterns

What materials and finish protect the tool from wear and corrosion?

Sunluway engineered this puller from 4140 impact-grade steel for high strength and toughness under repeated load. The components receive a black powder coat that resists rust and abrasion, extending service life in busy shops and humid environments.

• Material: hardened 4140 impact-grade steel
• Finish: black powder coated for corrosion resistance
• Designed for repeated professional use

Who is this for: The Sunluway 522 Large Gear and Pulley Puller is aimed at professional mechanics, fleet maintenance teams, and serious DIYers who need a dependable OEM-compatible puller. If you service engines, transmissions, or accessory drives and require a robust tool to remove tapped-hole components without specialty adapters, this unit provides the size range, strength, and fitment to replace Ford D80L-522-A and OTC 522 pullers while offering corrosion resistance and a long forcing screw for deep pulls. Sunluway includes a 12-month support period for questions or warranty assistance.