Tarett UnderDrive Pulley Kit (987.1 Cayman / Boxster)

Add Belt? (Required)

Designed to fit:

  • 2005 - 2008 Porsche Cayman / Boxster (except 2.9L)

Product Details

Fits 986/987 & 996/997 (up to 2008) Not 997S 3.8L or 2.9L Models, Turbo, GT3 or DFI).

Designed to slow down the power steering pump to prevent it from overheating in racing conditions, this pulley will quickly pay for itself by not just saving your pump, but also your weekend at the track.
The pulley is fully balanced and 4" OD at the belt tooth (a 27% reduction), the minimum OD to be BSR legal. Its weight has been optimized to be one of the lightest under-drive pulleys on the market today.
Made from high grade aircraft quality 2024 aluminum, which is far superior to the lower quality pulleys on the market that are made from a lower quality material.

An additional benefit is increased power and torque across the entire RPM range.
The kit comes complete with the crank pulley and a new crank pulley bolt. Fits all 986, 987, 996 and 997 except 997S 3.8L or Turbo or GT3 or DFI (2009 on). A boss on the front of engine case will need to be cut down slightly to clear the smaller pulley size. A smaller belt is needed and can be purchased separately.

Fits 986/987 & 996/997 (up to 2008) Not 997S 3.8L or 2.9L Models, Turbo, GT3 or DFI).

About Tarett Engineering 
Tarett Engineering designs and manufactures high-performance suspension components for both club and professional auto racing. They use aircraft-quality materials and hold the highest quality standards to provide our customers with products they can depend on to last and perform up to and beyond their expectations. Their goal is to provide our customers with high quality performance products at reasonable prices. You can be confident that all of our products are fully engineered and tested to meet this goal.

They use the latest 3D CAD solid modeling and finite element analysis (FEA) software to insure that all our designs are reliable and optimized for strength, weight, and functionality for the applications that they are designed for.

Their machinists are meticulous in their craft, and fabricate every part to the same exacting high quality standards. Component fabrication is performed on state of the art CNC lathes and milling machines, resulting in every part meeting our requirements for quality and fit. 

Their designs are tested and proven on both the street and track, and our customers are among the most respected and fastest in the country.

In addition to the products that we design and manufacture, we also carry suspension products from other manufacturers that we feel compliment our product line in design, value and quality.

Whether youre setting up a car for street or track, from a 911 to 997, we can help with the parts and advice you need. Please feel free to contact us for any of your suspension needs and questions.