Stellar Industries 143834 Anti-Two-Block Switch Retrofit Kit – 35105 to 29085
$148.00
Excluding Sales Tax
If you’re unsure whether this part is compatible with your truck or equipment, please contact us to confirm fitment before purchasing.
The Stellar 143834 Anti-Two-Block Switch Retrofit Kit is a genuine OEM upgrade designed to replace the discontinued Stellar 35105 A2B limit switch with the newer 29085 switch configuration. It is intended for compatible Stellar cranes equipped with a cradle-style anti-two-block system.
The anti-two-block system helps prevent the hook block from contacting the boom tip when the winch rope is reeled in too far. Replacing a damaged or unreliable switch helps restore proper operation of this important crane safety system.
What This Part Is Used For
The Stellar 143834 Retrofit Kit updates compatible cranes from the discontinued 35105 anti-two-block switch to the 29085 switch configuration. The A2B switch monitors the hook-block position near the boom tip and activates the crane’s protective system when a two-block condition is detected.
Common Reasons For Replacement
Original 35105 switch has been discontinued
Anti-two-block system not activating
Intermittent A2B warning or shutdown
Broken or sticking limit switch
Corroded electrical connections
Damaged switch housing or actuator
Retrofitting to the updated 29085 switch
Key Features
OEM Stellar Industries part number 143834
Retrofits Stellar switch 35105 to switch 29085
Replacement solution for the discontinued 35105 switch
Supports proper anti-two-block system operation
Designed for cradle-style A2B crane systems
Compatible with select Stellar EC-series cranes
Crane safety-system component
Quantity