Browse parts How It Works

Deck Hardware

All Plumbing & Pumps Deck Hardware Lines & Rigging Marine Electronics Navigation Electrical Engine Parts Safety Equipment Cabin & Galley

Sheave diameter

50 mm and up3
Under 40 mm1
40 to 50 mm2

Side plates

Composite3
Stainless1

Filters (2)

Sheave diameter

50 mm and up3
Under 40 mm1
40 to 50 mm2

Side plates

Composite3
Stainless1

3 products

Sheave diameter: 50 mm and up×Side plates: Composite×Clear all

Products we hold no details for on a filter are left out while it’s on.

Harken 2160 57mm Power3 Soft-Attach Ratchamatic Block
Harken · Deck Hardware
Harken 57mm Silver Ratchamatic Power3 Block, T2 Soft Attach
Harken · Deck Hardware
Harken 57 mm Power3 Ratchet Block, Swivel
Harken · Deck Hardware

Find parts

How it works
Buying guides

Company

About
Contact
FAQ

Legal

Affiliate disclosure
Terms
Privacy

Support

Contact us

As an Amazon Associate I earn from qualifying purchases.

CERTAIN CONTENT THAT APPEARS ON THIS SITE COMES FROM AMAZON. THIS CONTENT IS PROVIDED 'AS IS' AND IS SUBJECT TO CHANGE OR REMOVAL AT ANY TIME.

Skipper's Locker helps you find marine parts and links you to retailers who sell them. We don't sell anything ourselves, and we may earn a commission when you buy through our links — at no extra cost to you.

© 2026 Skipper's Locker.