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Motion Raceworks


Low Mount Passenger Billet LS Alternator Bracket 10-150

Racing Use Only, Not Legal for Road Use

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Low Mount Passenger Billet LS Alternator Bracket 


Designed to be the tightest fitting alternator only bracket on the market.  This bracket was designed to be used on electric water pump engines with alternator only accessories.  

We HATE accessory brackets that are not reliable and throw belts and ruin tensioners and idlers.  Which is why we designed this multi piece bracket to avoid all of the above.  You will not find a tighter fitting to the block alternator 

Designed to be used with GM LS Truck alternators for ease of wiring, serviceability, and standardization.  

We recommend the Powermaster version (Part # 48247)


  • Tightest Fitting to the Block on the market
  • Completely CNC Machined from US Made Material
  • Manual tension design eliminates failure points of tensioners and idlers
  • Engineered and Tested to Keep Belts on
  • Each balancer style spacing and hardware option in one kit (Corvette, F-Body, Truck)
  • Includes hardware
  • Black anodized 
  • 100% Made in the USA

Belt for Standard Pulley Size (Balancer and Alternator): Gates K060345

Belt for 10% Underdrive Balancer & Standard Alternator: Gates K060325

*Requires GM AD230 alternator to clear Flowtech Turbo LS Headers*

Dimensions from crank centerline with minimum adjustment

Dimensions from crank centerline with maximum adjustment