OEMTOOLS Harmonic Balancer Puller Kit for GM 3300/3800 V6 — Heat‑Treated Puller with Floating Swivel, Metric & SAE Bolts

The OEMTOOLS 27187 Harmonic Balancer Puller Kit is a complete, heat-treated puller set designed to remove harmonic balancers, vibration dampers, pulleys, and gears — including specific bolts for GM 3300 and 3800 V6 engines.

This compact kit delivers the hardware and design features professionals and home mechanics need to extract crankshaft pulleys and related components safely and efficiently. Built components are heat-treated for strength, and the included floating swivel minimizes stress on shaft ends during removal. Everything snaps into a blow-molded storage case so parts stay organized between jobs.

How does the floating swivel protect the engine when removing a balancer?

The kit’s floating swivel allows the puller’s center forcing screw to align itself with the shaft, reducing lateral force on the shaft end. That alignment lowers the chance of bending or scoring delicate surfaces while you extract the balancer or pulley. For many jobs this results in a cleaner removal and less follow-up work.

• Self-aligning swivel reduces side load on the crankshaft.
• Even pressure during extraction prevents shaft damage.
• Useful when pulleys sit tightly or are slightly offset.

What vehicle fitments are included and why does that matter?

This puller set includes metric and SAE bolts specifically sized for GM 3300 and 3800 V6 engines, so technicians working on those platforms can begin the job without hunting for specialty hardware. Having the correct bolt lengths and threads reduces the risk of stripped threads or improper engagement.

• Bolts matched to common GM 3300/3800 V6 harmonic balancers.
• Metric and SAE options increase compatibility with other applications.
• Ready-to-use hardware minimizes downtime at the bench or bay.

Which components are heat-treated and what benefit does that provide?

Critical pieces in the 27187 kit are heat-treated to improve toughness and wear resistance under repeated use. Heat treatment helps the puller arms and forcing screw resist bending, galling, and premature wear — especially when tackling rusted or seized pulleys. The result is a toolset that holds up better across many service jobs.

• Heat-treated arms and screws for long-term durability.
• Stable performance under high extraction loads.
• Reduced risk of tool deformation during heavy use.

How easy is it to store and transport this puller kit?

The kit ships in a blow-molded storage case that keeps each bolt, arm, and adapter in place when not in use. The case helps prevent lost hardware and simplifies inventory before and after a job. Its compact footprint fits toolbox shelves or a service cart for quick access.

• Custom-molded cavities organize all components.
• Compact case fits most shop storage configurations.
• Fast inventory check before rolling to the vehicle.

Who is this for: The OEMTOOLS 27187 is aimed at professional mechanics, automotive technicians, and DIYers who service GM 3300 and 3800 V6 engines or who need a versatile puller for pulleys, vibration dampers, and gears. If you require a durable, ready-to-use puller with correct-fit bolts, a self-aligning swivel, and organized storage, this kit provides a practical, long-lasting solution for routine engine front-end work.