ROCKER LOCKERS SKU: 880-3000

Rocker Lockers Single Rocker Locking Kit - 1999-2017 Harley Twin Cam

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About Rocker Lockers

Rocker Lockers parts and accessories are stocked at Vtwinbikers for Harley-Davidson and Indian Motorcycle applications. Every Rocker Lockers item we list is new and sourced through authorized distribution. If you are not certain a part matches your year and model, use Shop by Bike or email our team before you order and we will confirm fitment first.

The Rocker Lockers Rocker Locking Kit is designed to eliminate that annoying top-end ticking sound often heard from Twin Cam motors. This single kit contains four precision-tapered brass bushings that securely lock the rocker arm shafts in place, preventing the movement that causes the noise.

Why riders pick this

  • Eliminates top-end ticking noise
  • Locks rocker arm shafts securely
  • Four precision tapered brass bushings
  • Complete hardware kit included

Many Twin Cam owners are familiar with the distinctive ticking sound emanating from their engine's top end. This noise is typically caused by slight movement of the rocker arm shafts, allowing them to make contact with the mounting plate bolts. Rocker Lockers provide a simple yet effective solution, securing these shafts to quiet your engine and enhance your riding experience.

Silence Your Twin Cam Top End

  • Four brass precision tapered bushings per kit
  • Locks rocker arm shafts firmly in place
  • Eliminates ticking noise from rocker arm shaft movement
  • Includes all necessary hardware for installation

Easy Installation for a Quieter Ride

This kit is a straightforward upgrade for 1999-2017 Harley-Davidson Twin Cam engines across Touring, Softail, and Dyna platforms. With detailed instructions and all hardware included, most riders can perform the installation in their home garage. Enjoy a more refined and quieter engine, allowing you to focus on the road ahead rather than distracting mechanical noise.

Specifications

  • Brand: Rocker Lockers
  • Manufacturer Part #: DK-RL-TC
  • Length: 4 in
  • Width: 6.5 in
  • Height: 0.5 in
  • Weight: 0.07 lbs

Common questions

What causes the ticking noise this kit addresses?

The ticking noise in Twin Cam engines is often due to slight play or movement in the rocker arm shafts, which allows them to make contact with the mounting plate bolts. Rocker Lockers prevent this movement.

Will this kit fit my Milwaukee-Eight engine?

No, this specific Rocker Lockers kit is designed for 1999-2017 Harley-Davidson Twin Cam engines only. Different kits are available for other engine platforms.

Is special tooling required for installation?

The kit comes with step-by-step installation instructions and all necessary hardware. While basic hand tools are required, no specialized tools are generally needed for this installation.

Ordering from Vtwinbikers

  • Brand new, sourced through authorized US distribution — never used, never grey-market.
  • Not sure it fits? Use Shop by Bike to filter by your year and model, or email us and we will confirm before you order.
  • Harley-Davidson and Indian Motorcycle is all we do, so you are talking to people who ride what you ride.
BRANDRocker Lockers
TYPEEngine
SKU880-3000
WEIGHT0.07 lb
Please contact us to confirm fitment for your specific motorcycle, or check the product title for compatibility notes.
CUSTOMER REVIEWS
1.5
2 RATINGS
5★ 0
4★ 0
3★ 0
2★ 1
1★ 1
✓ VERIFIED
Sep 8, 2023

V-Twin Rocker boxes

Gave two stars because description was not complete!<br />This part does fit my 06 fxsti Harley softail, You will have to purchase top cover gaskets separately. This kit is not fully compatible with the engine. Main vent hole is blocked by the lower part of the rocker box and caused excessive pressure in oil tank and blew out dipstick. Make sure you have an cylinder head that matches the vent configuration of the rocker boxes.

— JACOB H
✓ VERIFIED
May 16, 2026

Crap

Bolt holes to mount the lower cover to the head are too small to allow the original bolts to be installed. It apparently eliminates two mounting bolts and simply uses the rocker guide to secure one side in place. Doesn't include the upper gasket. I'm returning this crap, will use my old ones.

— Paul M