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SR Performance Underdrive Pulleys; Polished (94-95 5.0L)

Item 525570
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      Video Review & Installation

      These are the SR Performance underdrive pulleys for 1994 to 1995 five liter Mustangs. You're gonna wanna check out the SR Performance underdrive pulleys if you're looking for a set of pulleys to free up potential horse power in a fast, easy and a very affordable way. The SR Performance pulleys cost the least out of any pulley option, so they're currently the most budget friendly. Now the theory behind underdrive pulleys is that the factory pulleys require a lot of energy. A set of pulleys, like these ones here, reduce the amount of parasitic drive train loss by cutting down on the amount of power it takes to run the accessories like your water pump, your alternator and your AC compressor. And some people mention noticing a difference after installing these. Underdrive pulleys are only a good idea if you plan on keeping your car naturally aspirated, so just keep that in mind when you figure out your future plans. Now the install for these is gonna be an easy one. It's a one out of three wrenches on the difficulty meter, and you can plan on spending two hours to get these installed. So the engine uses its own power to rotate the serpentine belt starting at the crank shaft. This pulley then uses the engine's power to rotate the rest of the pulleys. So when you reduce the size of the crank shaft pulley it'll require less energy to rotate the accessories. The pulleys in this set are light weight aluminium which means that they will require even less energy to rotate. This set has a polished furnish, but SR Performance also sells a set that's powder coated black if you prefer the look of those ones instead. This kit is gonna include the crank pulley, the water pump pulley and the alternator pulley, as well as the hardware to get these installed. Now the nice thing about these is that you'll be able to free up the power that the engine is currently using to rotate these pulleys, but you won't sacrifice the effectiveness of the accessories themselves. So your water pump and your alternator will still function perfectly, they'll just require less power from the engine to operate. The only time you can see issues is if you have an after market sound system and an upgraded alternator. These items are more taxing on the car's system and they're gonna require more work from the alternator. So if that's the case, I'd recommend steering away from underdrive pulleys altogether. But, for those of you that don't have this type of set up, these will reuse a stock belt so you won't have to get a different size belt which will make things easier when you need to replace yours.When it comes to fitment, just make sure you're shopping for the correct thing here. These are underdrive pulleys for the '94 to '95 five liter and this kit is made to reuse a stock belt and it assumes that everything is still stock. If you have eliminated anything, like your smog pump or your AC, you'll have to do some of your own engineering as far as belt sizes go. But if you're still stock and you haven't deleted or eliminated anything like your smog pump, you'll reuse a stock size belt. As far as price, you are looking at a touch over $60 for this kit. This is the most affordable pulley kit currently at this time. Don't forget that you do have a choice of the SR Perfomance black pulley kit if you didn't want the polished set, or you have the choice of another brand like BBK or Steeda. Just know that they won't be as price friendly as this kit is. The install here is easy and I'm gonna call it a one out of three wrenches on the difficulty meter. You can expect to spend two hours getting the install done and you'll just need some basic hand tools to get the job done which includes a socket set.You should loosen the nut in the center of the alternator pulley prior to removing the belt, and loosen the water pump bolts and the crank pulley bolts as well. You need to release the tension on your serpentine belt and set it aside. From there it's a matter of unbolting the factory pulleys and replacing them with the underdrive pulleys from SR Performance. Once they're bolted in, release the tension pulley again and put the serpentine belt back on. You need to make sure it's on properly by following the diagram that's usually located on the radiator cover. The SR Performance underdrive pulleys are for 1994 to '95 five liter Mustangs. Check them out online right here at

      Product Information

      Features, Description, Reviews, Q&A, Specs & Installation


      • Free Up Horsepower
      • Complete 3 Piece Kit
      • Durable, Lightweight Aluminum
      • Polished Finish
      • Premium Quality Construction
      • Fits 1994-1995 5.0L V8 Mustangs


      Free Up Horsepower. A set of SR Performance Underdrive Pulleys reduce parasitic drivetrain loss by cutting down the amount of power your accessories take up, these underdrive pulleys will free up 10+ horsepower, without sacrificing cooling and charging functionality of your Pony.

      Premium Quality Construction. CNC-machined from lightweight aircraft grade quality aluminum alloy for strength and durability, these SR Performance pulleys feature a bright polished finish that will give your engine bay an eye-catching high performance appearance.

      Easy Installation. These SR Performance Mustang Underdrive Pulleys installs quickly and easily in under 2 hours with no modifications required.

      Application. This SR Performance 3-Piece Aluminum Underdrive Pulley Kit is designed for use on 1994 to 1995 Ford Mustangs equipped with the iconic push rod 5.0L V8 engine, including the GT and SVT Cobra models. Reuses stock belt.

      SR Performance

      Fitment: 1994 1995 Details

      SR Performance 525570

      CA Residents: WARNING: Cancer and Reproductive Harm -

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) water pump pulley
      • (1) alternator pulley
      • (1) crank pulley

      Tech Specs

      UnderDrive Pulley Specifications
      Year/Model:1994-1995 5.0L V8 Manufacture:SR Performance
      Material:Aluminum Finish:Polished
      Crank Pulley: Piggyback SFI Certified:No

      Customer Reviews (100+)

        Questions & Answers

        10 More Questions

        Will It Fit My Mustang

        • Cobra - 94, 95
        • GT - 94, 95

        Fits 5.0L V8's Only

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