Parts

Size-for-size in our expanding range, Harken Zircon blocks are the most efficient small boat blocks Harken has ever made. At the core of Zircon performance are industrial ceramic ball bearings mounted inside caged races. The cages keep these bearings...

The standard boom block is mounted to the mid point of the ILCA boom. Pass your mainsheet up from your mainsheet block, through the boom block, and then aft to the boom block with becket to complete your rigging. Attaches to the boom with the stainless...

The boom block with becket is attached to the aft end of the ILCA boom. Pass your mainsheet through the block, down to the traveler block, and back up to secure to the becket. A great upgrade for an older boat, particularly for light air sailing!...

The ILCA Vang Upper Block is a Harken wire block with becket with attached vang key. It features indented sides to prevent the line from slipping off the sheave. The included vang key is the latest 'updated' style with larger head for improved strength...

The Ronstan 40mm Orbit Block with Tie is a block with lightweight dyneema link head for tie off attachment.. Ultra Lightweight Low friction 2-stage Orbital ball bearing system Highest working load in its class Low profile and compact High performance...

The patented T2 Ratchamatic is Harken’s newest block to feature the T2 line’s styling and soft-attachment system. The weight of this high-strength block is only a few ounces. This is thanks to composite fiber-reinforced sideplates,...

Low-friction Carbo Air blocks are lightweight, strong, reliable—and affordable. Companions to the popular Harken Black Magic block line, these small, compact blocks have very high working loads for safe, easy trimming.

Upgrade your ILCA vang with this new high load upper vang block from the hardware experts at Ronstan. Introduced as part of the Series 30 Block collection, the RF34108HLK is a low friction, low profile vang block with clevis pin for removing vang key...

The 16 mm is Harken’s® smallest block. It is perfect for small synthetic control lines found on high-tech dinghies. The patented bearing system uses stainless steel balls in a captive grooved race. Sheave 16 mm / 5/8 in Length: 54 mm / 2 1/8...

Single thru deck block from Allen. These blocks offer frictionless guidance for rope and wire control lines which are required to pass through a deck. Featuring a hard-wearing acetal body shaped perfectly to house the sheave, which results in a...

A low-friction Harken 29mm Carbo AirBlocks from Harken. A lightweight, strong, reliable and affordable block. This variation comes with a removable bolt through the middle so it can be undone and connected to various locations on your boat...