General Parts

Eyestrap for the C420 main sheet ratchet block.   Harken Part # 137.1

Stamped shackles are used on most Harken small boat blocks. Harken Part # 072.100U LP Part # 91205

Made of durable, flexible PVC, stand-up boots holdblocks up without snagging lines. Fits 40 mm and 57 mm blocks  Zim Applications Opti: mainsheet block Harken Part # 369

Low-friction Carbo 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. Sheave: 29 mm / 1 1/8 in Length:...

Standard two hole eyestrap as used on the C420 cunningham, outhaul lead block, ILCA eyestrap, etc.   Harken 073 Eyestrap - 32mm Standard Eyestrap - Stainless Steel Breaking load (kg)726 kgBreaking load (lb)1600 lb Harken Part # 73

Spring to make the ratchet block stay standing up. Helps reduce mainsheet snags. Works on ILCA, SF, Optimist, 420, and many other small sailboats. 2" X 7/8"    Harken Part # 71.1 LP Part # 91217