The X AUTOHAUX Harmonic Balancer Installation Tool is a workshop implement designed to make fitting harmonic balancers straightforward and damage-free. Home mechanics and professional technicians gain confidence from a controlled, screw-driven method that reduces the risk of misalignment. Would a workshop benefit from a tool that simplifies balancer fitting on Chevy small-block and big-block crankshafts?
⚡ At a Glance
- • Installation: Threads into the crankshaft, then rotating the nut presses the bearing to slide the balancer on
- • Best for: Mechanics and DIYers who work on Chevy Small Block and Big Block engines
- • Not ideal for: Engines outside the stated Chevy small-block and big-block fitment range
Designed for Chevy Small Block and Big Block crankshafts. A threaded installer presses the bearing against the balancer for smooth, controlled fitment.
Smooth, damage-free installation, with a threaded crankshaft press mechanism
Thread the correct end of the installer into the crankshaft, then rotate the nut so the bearing is pressed against the balancer. The axial pressure created by the nut forces the balancer to slide evenly onto the crankshaft.
Balanced, steady pressure reduces the chance of scoring or misalignment during fitting. The method helps achieve correct seating without improvised tools.
Controlled crank rotation for ease of use, with a straightforward rotation-step
Preparation involves removing flywheel cover plugs and placing a rotation tool to turn the flywheel while the installer advances. The rotation step allows fine control over alignment through each turn of the nut.
Controlled rotation helps line up the keyway and ensures the balancer progresses evenly, making the whole job less fiddly. The sequence suits both workshop benches and roadside repairs.
Simple kit approach, with a single supplied installation tool
Package contains one harmonic balancer installation tool, intended to be used with common workshop rotation tools and basic hand tools. The design focuses on one primary function rather than multiple adapters.
A single-piece supply speeds setup and reduces parts to manage during a job. Regular users will value the straightforwardness when carrying out repeated balancer installs.
✨ The 4 Key Reasons for X AUTOHAUX Harmonic Balancer Installation Tool
- Part number 66515 – Confirms correct replacement for compatible Chevy small-block and big-block crankshafts
- Threaded press mechanism – Applies even axial pressure to seat the balancer smoothly
- Simple single-unit kit – Minimal setup reduces preparation time and workshop downtime
- Clear installation routine – Uses flywheel access and nut rotation for controlled fitting
📋 Technical Details at a Glance
- Category: Automotive Parts and Accessories
- Brand: X AUTOHAUX
- Part Number: 66515
- Fitment: Chevy Small Block and Big Block crankshafts
- Function: Harmonic balancer installation tool
❓ Frequently Asked Questions
Q: Which engines are compatible?
A: Fitment is specified for Chevy Small Block and Big Block crankshafts; confirm the exact car model and OE number before purchasing.
Q: Is a rotation tool included?
A: Package contents list one harmonic balancer installation tool; separate rotation tools referenced in the instructions are not listed as included.
Q: How is the balancer installed?
A: Thread the correct end into the crankshaft, remove flywheel cover plugs and place a rotation tool, then rotate the nut which presses the bearing so the balancer slides onto the crankshaft smoothly.
🏆 Our Verdict
Suitable for home mechanics and professional workshops that service Chevy small-block and big-block engines. The threaded press method delivers controlled, even seating to reduce the risk of damage during fitting. A practical investment for garages that perform balancer replacements regularly, offering repeatable, reliable results over time.
