Harley-Davidson Rocker Lockers

Get Rid of the Annoying Top-End Ticking!

HAVE YOU tried changing cams, replacing lifters, adjusting pushrods, different oils, and still have that annoying ticking in the top-end of your Harley-Davidson Evo Sportster? Try Rocker Lockers—they will eliminate the ticking from the rocker arm shafts. 

Sportster rocker arm shafts have a notch in them that the bolt is supposed to butt up against, locking the rocker arm shafts in place. However, the bolt hole is too large, leaving a gap. This gap allows the shaft to rotate and hit the bolt, causing the tick.

The Rocker Lockers eliminate the gap, locking the shaft from turning and eliminating that annoying tick.

The Rocker Lockers also centre the inner rocker cover so that it is always located in the same position eliminating different wear patterns on the rocker arm/valve and a better alignment of the pushrod in the holes.

The Rocker Lockers are tapered so that they lock themselves in and wedge the bolt/shaft in place. If you ever need to remove the Lockers, just use a punch and tap them out; they are usually reusable.


  • Includes four brass precision tapered bushings.
  • Includes bolt, washer and nut for Installation.
  • Includes Teflon centreing tool.
  • Includes step-by-step installation instructions.

Kits available for Sportster Models 1986—2006, 2007—present, Twin Cams and Big Twin Evos. Price: $US15.95 plus postage.

DK Custom Products: www.dkcustomproducts.com

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