Rennline UnderDrive Pulley Kit (987 Cayman / Boxster)

$175.00

Designed to fit:

  • 2005 - 2008 Porsche Cayman / Boxster

Product Details

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. 

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

 

About Rennline

Rennline Incorporated is located in Milton, Vermont, just minutes north of Burlington and not far from Montreal, Quebec.  Rennline was started by Paul Jacques, a native Vermonter.  Paul has decades of experience in the aerospace fabrication industry and has had a passion for the Porsche 911 and a number of other vehicles since his childhood.  Perhaps best known for our aftermarket Porsche parts, we strive to manufacture functional pieces of equipment that are also aesthetically pleasing, no matter the application.  With a number of CNC machines and a great team of engineers and manufacturing specialists, Rennline has tackled a wide variety of projects over the years, from MTV Music Awards to the dual ammunition feed on the military’s XM307 Advanced Crew Served Weapon to beer tap handles, and so much more.

Rennline’s manufacturing abilities include: CNC waterjet, CNC milling and turning operations, bending, forming, welding, embossing, powder coating, painting, anodizing and screen printing. Our extremely diverse facility allows us to design as well as prototype and manufacture all of our own products in-house. This gives us constant control over innovation, quality, pricing, and availability of all Rennline products. In addition, it allows us to offer our products to the general public for less than comparable parts from other distributors. We also understand how important it is to serve our customers in a timely fashion, which is why we do our best to stock all of our products for immediate shipment.

We know what it takes to make our customers happy. To do that, we guarantee every product we offer, and strive to provide excellent service. We listen to what you have to say and work very hard to put your suggestions into practice. One of our customers recently sent us an e-mail that said, "Your company is truly unique in today's world, I thought that customer service was a thing of the past until I came across Rennline." That is just the way we want our customers to feel. So, if you have ideas about ways in which we can provide better service, or thoughts about new products, please let us know. It is your feedback that allows us to continuously evolve our product line into the excellence that we are driven to achieve.