Select Page

Current Murrays Sports information regarding COVID-19 virus outbreak, our policy and status at this time. UPDATED 7/16/2020 At this time our warehouse is getting available parts out in a timely manner. We are making every effort to ship same or next day, but it is still possible that shipping and delivery times may be effected. Hobie parts and international vendor parts are experiencing delays of 3-8 weeks for restocking. Some parts may not be available.
Current COVID-19 Notice

40mm Harken Block Pivot 180 with Cam Matic

$74.40 each

SKU: 28-2156 Categories: , ,

Product Description

Get ultimate control of sail shape and power through downhaul. This convenient “up release” exit pivot block (cam reverses for “down release”) can be mounted on either side of mast or in the mast track with 2 channel inserts and screws. Combine with other downhaul components shown below under “Related Items” to build the downhaul system to meet your needs. Check the class rules for your boat regarding system limitations for racing.

Also can work well as a Spin Halyard Cleat. See also SKU# 28-0396


Replaces 28-0140 which has been discontinued.



  • Sheave Diameter: 1-9/16″  (40 mm)
  • Length: 4-1/2″ (112 mm)
  • Weight: 6.6 oz. (186 g)
  • Maximum Line Diameter: 3/8″ (10 mm)
  • Maximum working load: 300 lb. (136 kg)*
  • Breaking load 950 lb. (430 kg)*
    *Maximum working loads and breaking loads for blocks based on cam strengths.

Additional information

Weight 0.4 lbs
Dimensions 4 × 4 × 2 in

You may also like…