OEMTOOLS Harmonic Balancer Puller Kit — GM 3300/3800 V6 Bolts, Heat-Treated Floating Swivel Pulley Puller

This compact kit puts a workshop-grade puller and matched bolts into one durable blow-mold case so you can service crankshaft pulleys, power steering pulleys, and similar components without risking shaft or keyway damage. Every metal part is heat-treated for improved strength, while the floating swivel feature helps center the puller and reduce lateral stress on shaft ends during extraction. The kit is built to be versatile for professional mechanics and informed DIYers who need a reliable, portable solution for pulley and damper removal.

How does this puller protect the crankshaft during removal?

The OEMTOOLS 27187 uses a floating swivel that absorbs off-center loads and keeps the puller force aligned with the shaft. This reduces the chance of scoring or bending the shaft end and prevents damage to keyways and threads. Combined with properly sized bolts, the design encourages smooth, controlled extraction rather than sudden jerks.

• Floating swivel centers force to limit lateral stress on the shaft
• Heat-treated arms and bolts resist bending under heavy loads
• Compatible bolts for GM 3300/3800 ensure correct engagement on those engines

Which engines and parts is the kit compatible with?

The kit includes metric and SAE fasteners plus specific bolts intended for GM 3300 and 3800 V6 engines, making it suitable for those crankshaft pulley jobs. Beyond GM V6s, the universal jaws and bolt sizes let you remove many harmonic balancers, pulleys, dampers, and gears on a variety of light-duty automotive and small-engine applications. Verify bolt thread and hub size before use for an exact fit.

• Includes GM 3300 & 3800 V6-specific bolts for accurate fitment
• Metric and SAE hardware broadens application range
• Useful for harmonic balancers, vibration dampers, pulleys, and gears

What makes the kit durable and workshop-ready?

Each metal component undergoes heat treatment to increase tensile strength and wear resistance, which helps the puller survive repeated shop use. The set packs into a sturdy blow-mold case to protect parts and keep them organized on the bench or in your toolbox. These features reduce downtime and lower the risk of losing small pieces between jobs.

• Heat-treated construction for longer service life
• Sturdy storage case keeps fasteners and jaws secure
• Compact set fits in most toolboxes for portability

How should I use the kit safely and effectively?

Start by matching the correct bolt and jaw size to the balancer or pulley, then hand-thread bolts evenly to seat the puller. Turn the center screw slowly while keeping the tool aligned; do not force or hammer the assembly. Use penetrating oil and steady, controlled torque to free stubborn parts while protecting the crankshaft and surrounding components.

• Match bolt threads and jaw engagement before applying force
• Turn the center screw slowly; avoid impact strikes on the hub
• Use penetrating oil and even torque to coax seized parts loose

Who is this for: The OEMTOOLS 27187 is aimed at professional mechanics, mobile technicians, and experienced DIY car owners who perform engine front-end work and need a dependable harmonic balancer and pulley puller. It’s especially useful if you service GM 3300 or 3800 V6 engines, but the included metric and SAE hardware also makes it a flexible option for general automotive and light-duty mechanical repairs. If you want a compact, heat-treated tool set that balances portability with shop-grade durability, this kit is a practical addition to your toolbox.