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Harken Thru Deck Big Bullet Block

Note: Some prices may reflect updates due to international tariffs. Learn the latest about tariffs

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Updated: April 2025

MSRP: $54.35
$47.95
(You save $6.40 )
(1 review) Write a Review
SKU:
HR131
Weight:
0.14 LBS
Shipping:
Calculated at Checkout.
Size:
38 mm
Type:
Single
Manufacturer part #: 131

Technical Description
Harken 131 Thru-deck
Thru-deck
1 1/2 in
38 mm
3 1/2 in
89 mm
2.25 oz
64 g
3/8 in
10 mm
300 lb
136 kg
2000 lb
907 kg
Note: #10 (5 mm) FH fasteners.
Low-friction Bullet blocks lead control lines aft. They are compact and lightweight, with fast trim and release under high or low loads. A range of styles lets these blocks adapt to almost all control line applications.

Delrin® ball bearings, sheave, and sideplates are UV stabilized with carbon black for maximum protection. Wire Bullet blocks use roller bearings to carry higher loads and feature Hardkote-anodized Teflon® impregnated aluminum sheaves for strength and corrosion resistance. Mast exit blocks with cams used for halyard controls and under boom mainsheets.

Pivoting exit blocks with cams are often used for halyard controls and as "head knockers" for sheeting directly from the boom.

Use for:
  • Outhauls
  • Vangs
  • Barberhaulers
  • Cunninghams
  • Traveler controls
  • Furling line leads
  • Flag halyards

1 Review Hide Reviews Show Reviews

  • 4
    No one contacted me to appologize

    Posted by Chris on Oct 1st 2015

    i ordered the first product. it arrived just fine. it was the wrong part..totally my fault. Easy to return. Easy to reorder. New parts arrived just fine.

    But the refund was a hassle. Did not receive refund. Sent email requesting status. No reply. Called them. They then did the refund right away while i was on the phone. Then they called me back and asked that i put in a fake order to offset there duplicate refund.

    A big hassle since they did not reply to my email.

    They did not even call to apologize.