(1) Set of 3 (crank, water pump, alternator) under drive pulleys and hardware
Made from aircraft quality machined steel or aluminum alloy these BBK Mustang under drive front accessory pulley kits are one of the easiest ways to free up an average 8-15 horsepower in under 30 minutes.
These Mustang BBK pulley kits are designed as direct bolt on replacements for the current Ford factory pulleys and retain full cooling and charging characteristics.
Each BBK Mustang under drive pulley kit is vehicle specific. They are designed and tested at the BBK headquarters in Southern California for maximum performance.
These under drive pulley kits are available in a hand polished aluminum finish or gloss black powder coated steel. Each Mustang pulley kit comes with complete installation instructions and allow the use of existing serpentine belts.
Due to the difference in diameter from the stock Mustang pullies, the alternator and charging system may need to be upgraded if you have a large stereo system.
These BBK Mustang underdrive pullies work great on a stock or modified V8 GT or LX Mustang!
FYI - requires a different size belt to complete installation.
This BBK pulley kit is designed to work with a stock length belt. Your car must have already been equipped with a different pulley configuration.
Yes, I would recommend this item to a friend!
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Causes the belt to squeal. Still worth it.
Nicolas F. on
I would rate this product a full five stars if the polished aluminium wasn't so smooth that it caused the accessory belt to squeal for a second or two on cold start-ups, and sometimes even under heavier acceleration. It usually goes away once the engine is warm. Even with a brand new belt, it would still squeal. While I haven't tried it yet myself, maybe scuffing the surface of the pulleys just a bit might help.
In terms of performance, don't expect a radical difference because of these things, but there will be a noticeably better response time to throttle. They also look pretty sweet. If you're running electrical fans and/or a beefy stereo setup, (1000+ watts), even with a 3G alternator upgrade (130 amp), the lights will still dim noticeably when at idle after a bit of time, but there are zero issues with coolant temperature. If you're still on a stock alternator, these pulleys are probably not a good idea as you will run into charging issues.
Overall, I recommend them if you can find them on sale (under $100). I can't say they are worth the regular price.
BBK - Today's Performance
Since 1988 - BBK has dedicated itself to designing and building cutting-edge high-performance parts and accessories for today's EFI-equipped Mustangs and Ford Lightnings while maintaining the OEM quality levels.
From their world-famous line of "Power-Plus-Series" performance throttle bodies to their hundreds of "CNC-Series" performance exhaust offerings - the BBK brand is known for delivering unmatched value and quality. Shop BBK for your Mustang headers, exhaust, cold air intakes, and other performance parts!
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