Orion Motor Tech Crankcase Splitter & Installer Tool — 15‑Piece Kit, 360° Adjustable Arms, Chrome-Plated Steel

The OMT Crankcase Splitter and Installer Tool is a 15-piece kit with 360-degree adjustable arms that safely splits crankcases and installs crankshafts for most 2‑stroke and 4‑stroke small engines.

If you work on motorcycles, ATVs, dirt bikes or small-engine equipment, separating crankcase halves and seating crankshafts are routine but delicate jobs. This Orion Motor Tech kit combines a crankcase splitter, crankshaft installer, adapters, screws and rods so you can perform both operations with control and without marring housings or bearings. The tools are built from AISI 1045 steel with chrome plating and blackening for improved wear and corrosion resistance.

How does the 360° adjustable-arm design make crankcase splitting easier?

The three adjustable arms rotate around the central hub to match a wide variety of bolt patterns, so you can apply even, centered force when separating crankcase halves. That balanced pull reduces the risk of twisting or snagging internal parts and helps preserve gasket surfaces.

• Three arms pivot 360 degrees to match bolt hole layouts.
• Even force distribution avoids tilting or binding of cases.
• Compatibility with many 2‑stroke and 4‑stroke engines (see exclusions).
• Chrome-plated AISI 1045 steel resists bending and corrosion.

Can I use this kit to install a crankshaft without damaging bearings?

Yes — the kit includes a crankshaft installer, adapters and the proper M10/M12 screws to draw the crank assembly into the case squarely, minimizing side load on bearings. Using the correct adapter and bolts keeps the force centered on the crank journal instead of the bearing inner race.

• Three crankshaft adapters fit a range of journal sizes.
• M10 and M12 screws provide strong, controlled draw force.
• Steel rods and bolts steady alignment during installation.
• Designed to reduce impact and pry damage to bearing surfaces.

What components are included and how will they speed my workflow?

The 15-piece set supplies the most common hardware you need so you won’t have to jury‑rig spacers or hunt for matching bolts during a tear‑down or reassembly. Having dedicated adapters and rods on hand shortens downtime and improves repeatability across jobs.

• Crankcase splitter hub with three adjustable arms and fasteners.
• Crankshaft installer body and three journal adapters for secure seating.
• M6/M8 bolts, M10/M12 screws and two steel rods for alignment and draw.
• Compact kit arrangement for workshop or mobile use.

Are there any engines this tool will not fit?

While the tool is broadly compatible, a few models are excluded due to unique crank spacing or bolt patterns. It’s not suitable for YMH Raptor 660, Kawasaki Tecate 250, or KTM 125/144/150. For other makes and models, confirm bolt spacing and adapter size before use.

• Not compatible: YMH Raptor 660, Kawasaki Tecate 250, KTM 125/144/150.
• Check crankcase bolt pattern and journal diameter prior to work.
• Adapters and arms cover most common small-engine variations.

Who is this for? Orion Motor Tech’s crankcase splitter and installer is aimed at motorcycle mechanics, ATV and dirt‑bike enthusiasts, small-engine repair shops and DIYers who demand a durable, all‑in‑one solution for separating crankcases and seating crankshafts. If you need a robust, reusable kit that reduces accidental damage during disassembly and speeds reassembly, this set provides the components and adjustability to get the job done consistently.