TR5998J Nickel-Plated Hex Valve Caps

The TR5998J is a nickel-plated metal valve stem cap machined with a hexagonal top instead of the rounded profiles used on the TR8600-2 and TR7572S. The hex shape allows the cap to be gripped and turned with a small wrench in addition to hand-tightening, which can help when a cap has corroded slightly or is otherwise difficult to remove by hand.

Beyond the hex profile, it delivers the same core function as the other metal caps in the range: sealing out dirt and moisture from the valve core while resisting corrosion thanks to the nickel plating. The distinct hex shape also gives it a more mechanical, technical appearance that some vehicle owners specifically request.

Shops that serve performance or enthusiast customers often keep the TR5998J on hand as the hex-style option within the metal cap lineup, alongside the rounded TR8600-2 and TR7572S. Packed in bulk quantities of 250.