Harken® 289 Bullet Block In-Line Exit
SKU: 289111
MSRP $64.75/EA
Save 12%
2 Available - This item has been discontinued. Limited quantity available.
Only NaN left. This item has been discontinued. Please adjust quantity.


Harken® Bullet Block In-Line Exit is designed to be compact and lightweight with a sheave diameter of 1-1/8" (29 mm). This low-friction turning block leads control lines out of the base of a mast or boom or passes line through decks of smaller sailboats. Delrin® ball bearings ride on flat races for ultimate low-load performance, yet they are capable of working loads of up to 400 pounds (181 kg). The sheaves are crafted from Delrin and are UV-stabilized with a carbon black additive for maximum protection. It's cover plate and side plates are made from marine grade stainless steel for strength and resilience. Designed for all control applications on smaller boats where up to 5/16" line is used, this block has a fast trim and releases under both high and low loads. Easy maintenance: just flush with mild soap and fresh water. The Harken Bullet Block In-Line Exit is ideal for vangs, outhauls, cunninghams, flag halyards, traveler controls, barberhaulers, furling line leads and more.


  • UV-Stabilized Delrin© Free-Rolling Ball Bearings and Sheaves
  • Marine Grade 316 Stainless Steel Side Plates and Cover Plate
  • Block is Mounted In the Mast, Boom, or Deck
  • Compact and Lightweight
  • Fast Trim


Sale Unit: EA
Brand: Harken
Number of Sheaves: 2
Sheave Diameter: 1-1/8 inch (29 mm)
Length: 3-3/4 inches (95 mm)
Weight: 2 ounces (60 g)
Maximum Line Diameter: 5/16 inch (8 mm)
Maximum Working Load: 400 pounds (181 kg)
Breaking Strength: 2,000 pounds (907 kg)
Fasteners Required: #10 Round Head (5 mm) (Fasteners Not Included)
Mounting Hole Spacing: 3-1/8 inches (79 mm) (Center-to-Center)
Cutout: 3/4 x 2-5/8 inches (19 x 44 mm)



A. 0.202”
B. 3.125”
C. 0.313”
D. 1.000”


A. 1.125”
B. 3.692”


We're located in Indiana and would be happy to answer your calls Monday-Friday, 8am-5pm EST.

LOCAL: (260) 244-4647 | TOLL FREE: (800) 348-2769