OEMTOOLS Alternator Decoupler Pulley Tool Kit, 5-Piece — Fits OAD/OWC Pulleys, Hardened Sockets & Carry Case

OEMTOOLS 27261 is a 5-piece alternator decoupler pulley tool kit designed to remove and install overriding decoupler (OAD) and one-way clutch (OWC) alternator pulleys on most popular vehicles.

When you’re servicing alternators, the right puller and driver set saves time and prevents damage. The OEMTOOLS 27261 kit supplies two pulley sockets and three shaft bits sized to engage common OAD and OWC pulley profiles, and it’s built to work with alternators both on and off the vehicle. All components store neatly in a rugged carrying case so the set is ready for shop benches or mobile work.

How does this kit remove stubborn alternator pulleys?

The kit uses hardened pulley sockets that fit over the pulley profile and shaft bits that transfer torque safely to the alternator spindle. This setup lets you apply controlled force to back pulleys off without relying on improvised tools that can slip or damage parts.

• Two purpose-machined pulley sockets: H22 x 33T and H17 x H19 x 30L for secure engagement.
• Three shaft bits provide multiple drive options: H10 x FM H10, T50 x H10 x 75L, and M10 x H10 x 75L.
• Designed to handle high removal torque while reducing risk to bearings and housings.

Can I use the OEMTOOLS 27261 kit with the alternator still mounted?

Yes — the design accommodates both in-vehicle and out-of-vehicle work. The bit and socket combinations give the reach and leverage needed to operate in tighter engine bays, letting you remove or install pulleys without fully detaching the alternator in many cases.

• Compact socket profiles fit into confined spaces typical of modern engine compartments.
• Shaft bit lengths include a 75 mm option to reach recessed spindles.
• Keep the alternator mounted to save disassembly time when vehicle clearance allows.

What makes this alternator pulley tool durable and reliable?

OEMTOOLS built the 27261 kit from robust materials intended for workshop abuse and repeated high-torque use. Finished machining and correct tolerances reduce wear on both the tool and pulley, while the molded case protects components between jobs.

• Hardened sockets and bits resist rounding and deformation under load.
• Precision fit reduces slippage and preserves pulley and spindle surfaces.
• Sturdy storage case keeps parts organized and protected during transport.

Which pulley types and vehicle applications does this set cover?

The 27261 is targeted at the most common overriding alternator decoupler (OAD) and one-way clutch (OWC) pulley designs found across many makes and models. While it covers many popular applications, always verify socket and bit compatibility with the specific pulley dimensions on your vehicle before use.

• Works with both OAD and OWC pulley styles for broad applicability.
• Includes socket sizes and shaft bits matching many OEM pulley profiles.
• Recommended to confirm measurements versus your alternator pulley before attempting installation.

Who is this for? The OEMTOOLS 27261 is aimed at professional mechanics, mobile technicians, and serious DIYers who frequently service alternators and need a dependable decoupler pulley remover/installer. If you work on a range of vehicles and want a compact, durable kit that handles both overriding decouplers and one-way clutches, this set offers the sockets, bit options, and carry case to simplify pulley service and reduce the risk of part damage.