Painless
Painless Performance Trail Rocker Jeep CJ Accessory Control Systems - 57021
Painless Performance Trail Rocker Jeep CJ Accessory Control Systems - 57021
Regular price
$599.99 USD
Regular price
Sale price
$599.99 USD
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- Ships direct from the brand or supplier
- Tracking emailed when it ships
- Free fitment check before you order
Listed for: Jeep CJ AccessoryFitment notes & questions
Painless Performance Trail Rocker, listed for Jeep CJ Accessory. Worn rocker tips or pivots cause noise and poor valve control.
Quick facts
- Brand: Painless
- Part type: Rocker arm
- Listed for: Jeep CJ Accessory
- Part number: 57021
Tip: Check rocker geometry and adjust valve lash or preload after installation.

About this rocker arm for the Jeep CJ Accessory
Higher-ratio rockers add valve lift without changing the cam.
Fitment notes
- Listed for: Jeep CJ Accessory.
- Specs, lead time and warranty come from Painless and can change. The details above this guide are the latest we have.
Not sure it fits? Message us your vehicle details and we'll double-check fitment before you buy.
Ask about fitmentParts that usually go with it
- Pushrods. Rocker changes can change the pushrod length you need.
- Valve cover gasket. The cover comes off for this job.
More for your car: Jeep Parts · All Rocker Arms · Engine
Questions about Jeep CJ Accessory rocker arms
Will this fit my Jeep CJ Accessory?
It is listed for the Jeep CJ Accessory. Check your year, model, engine and trim against the title and details above. If anything is different, contact us and we will confirm fitment before you order.
Do I need to adjust valves after new rockers?
Yes on most engines with adjustable valvetrain.
Where do specs and warranty details come from?
From Painless. Each brand sets its own specs, lead times and warranty terms, and they can change. The product details above are the latest we have.
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