General 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 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,...

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...

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...

Updated C420 spinnaker guy larger roller pin (1/4 inch) in our latest spec. The outboard end of the pin features a 1 inch disc that's better for holding your spin sheets as compared to our previous version. A great upgrade for any C420 sailor! Guy...

Grey gelcoat in 8oz container for your next boat repair.  Gelcoat comes waxed and ships without the catalyst (Fire hazard). For best results when mixing you should use 2% catalyst or 50:1. SHIPPING NOTE - Item cannot ship via USPS. Please select...

Yellow gelcoat in 4oz container for your next boat repair. This is the same gelcoat we use for our C420 with yellow stripes Gelcoat comes waxed and ships without the catalyst (Fire hazard). For best results when mixing you should use 2% catalyst or 50:1...

Grey gelcoat in 8oz container for your next boat repair. This is the same gelcoat we use for our C420 Deck and the entire Zim ILCA For our C420 hull, you need white C420 Gelcoat Gelcoat comes waxed and ships without the catalyst (Fire hazard). For best...

White gelcoat in 8oz container for your next boat repair. This is the same gelcoat we use for our C420 hull and most Zim Optis.  For our C420 deck, you need grey C420 Gelcoat Gelcoat comes waxed and ships without the catalyst (Fire hazard). For...

White gelcoat for the RS Aero sailbot in 8oz container for your next boat repair. Gelcoat comes waxed and ships without the catalyst (Fire hazard). For best results when mixing you should use 2% catalyst or 50:1. SHIPPING NOTE - Item cannot ship via...

White gelcoat in 8oz container for your next boat repair. This is the same gelcoat we use for our FJ/CFJ. Gelcoat comes waxed and ships without the catalyst (Fire hazard). For best results when mixing you should use 2% catalyst or 50:1. SHIPPING NOTE -...

 The bailer guard is designed to protect the Super Shute 60 auto-bailer used in the forward bailer on the Zim C420. Replaces the previous model that is one piece. Having two pieces makes the part lighter and easy to replace. Sold as a Pair.