RZEOZU 3/4" Crankshaft Holder Tool Kit for Predator 212 Engine — Steel bracket, 3/8" drive

RZEOZU 3/4" Crankshaft Holder Tool Kit is a steel replacement holder that fits keyed 3/4" cranks to secure the crank while you torque or install a flywheel on small engines like the Predator 212.

When working on small horizontal-shaft engines, keeping the crankshaft from turning while loosening or tightening the flywheel nut is essential. This RZEOZU kit provides a straightforward mechanical solution: it slides over a 3/4" keyed crank, locks into place, and accepts a ratchet or breaker bar to hold the crank steady. Built from steel with an aluminum hub and simple fasteners, it’s a compact, serviceable alternative to improvised holding methods.

Will this holder fit my engine crank?

Check the crank diameter and keyway before purchasing. This tool is designed specifically for cranks that are 3/4" in diameter and keyed; it will not fit other shaft sizes or unkeyed shafts.

• Designed for a 3/4" keyed crankshaft only.
• Not compatible with 5/8", 1/2", or unkeyed cranks.
• Works with engines that lack threaded sidecover holes by using the 3/8" square hole for leverage.

How does the tool lock onto the crank and hold torque?

The bracket slides over the crank and secures using the included keyway and hub; the long locking hole lets you pin the tool in place while tightening. A 3/8" square drive hole accepts a ratchet, breaker bar, or torque tool so you can apply steady counter-torque without damaging the crank.

• Long hole at the end allows secure locking with a pin or bolt.
• 3/8" square drive hole fits common ratchets and breaker bars.
• Supplied keyway aligns with the crank key to prevent slipping.

What is included and what materials are used?

The kit ships with the crankshaft holder bracket, an aluminum hub, a matching keyway, and a set of nuts for installation. The main bracket is steel for strength and shape retention, while the hub is aluminum to balance durability with light weight.

• 1 × steel crankshaft holder bracket for strength and durability.
• 1 × aluminum hub that reduces weight and resists corrosion.
• 1 × keyway and a set of nuts to secure the assembly to the crank.

How will this tool change my repair workflow?

Instead of improvising with screwdrivers or pry bars that can damage components, this holder gives a repeatable, safe anchor point for counter-torque. It speeds flywheel installations and removals, reduces the risk of rounding nuts or damaging the flywheel, and makes single-person service jobs easier.

• Makes flywheel removal and installation faster and safer.
• Reduces risk of stripped hardware or damaged crank surfaces.
• Enables one-person operation for many maintenance tasks.

Who is this for: The RZEOZU 3/4" Crankshaft Holder Tool Kit is aimed at backyard mechanics, small-engine repair shops, and anyone servicing horizontal-shaft engines that use a 3/4" keyed crank—commonly found in Predator 212-style engines. If you frequently change flywheels, stators, or perform clutch and starter repairs, this kit offers a durable, purpose-built way to hold the crank without improvised tools. Remember to confirm your crank is 3/4" and keyed before ordering to ensure proper fit.