Welcome to Defender Canada! 
Block Accessories
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Lewmar Articulated Sheave - 6" - 89100032
$491.30 -
Ronstan Series 100 Roller Bearing Sheave
$475.66 - $745.11 -
Ronstan Series 100 Orbit Sheave - RF109000
$459.43 -
Ronstan Series 75 Alloy Roller Bearing Sheave
$346.80 - $554.53 -
Harken Sheave - 76 mm (3") - 500
$344.57 -
Spinlock TWR Line Organizer
$299.63 - $685.84 -
Ronstan Series 60 Roller Bearing Sheave
$279.91 - $307.30 -
Ronstan Series 75 Orbit Sheave - RF79000
$273.24 -
Harken Narrow High-Load Sheaves - 76 mm (3") - 691
$254.33 -
Ronstan Series 30/60/75/100 Stand-Up Spring - RF324-2
$218.29 -
Wichard Stacked Deck Organizer for Ball Bearing Sheaves - 32 mm (1 17/64") - 81512W
$216.19 -
Ronstan Series 60 Orbit Sheave - RF69000
$204.70 -
Lewmar Size 3 Stand Up Base - 29393000
$200.80 -
Ronstan Series 100 Spring Kit - RF328
$197.76 -
Schaefer 7 Series Deck Plate - 704-02
$195.16 -
Harken Midrange ESP Stand-up Base - 1634
$188.06 -
Lewmar Size 3 NTR Upstand Assembly - 29473024
$178.24 -
Ronstan Series 75 Aluminum Sheave - RZ01000AW
$156.35 -
Ronstan Series 60/75 Stand-Up Spring - RF324
$154.74 -
Ronstan Series 75 Ratchet Sheave - RF72000
$152.53 -
Ronstan Ball Bearing Swivel - RF78A
$152.43 -
Barton Flush Mount Deck Plate
$144.40 - $186.37 -
9% offSchaefer Series 5 Deck Plate Adapter - 504-02
$133.83 -
Ronstan Series 60 Ratchet Sheave - RF62000
$127.48 -
Schaefer Aluminum Sheave - 2" - 62-023-15BW
$127.48 -
Harken Black Magic Roller Cage Assembly - 125 mm (5") - HBB88
$126.07 -
Lewmar Size 2 Deck Plate - 19821000
$123.25 -
Ronstan Series 22 Ball Bearing Sheave Kit - RC00411
$111.97 -
Harken Swivel Ball-and-Socket Block Base
$107.69 - $114.74 -
29% offSchaefer Aluminum Sheave - 2" - 62-023-15CW
$106.19 -
Spinlock Jammer Turning Block - 50 mm (1 31/32") - B50X
$106.08 -
Barton Large Stand Up Block Base
$98.25 - $103.70 -
Ronstan Acetal BB Sheave
$94.98 - $109.15 -
Lewmar HTX Upstand Kit
$93.64 - $205.03 -
Ronstan Series 19 Ball Bearing Sheave Kit - RC00410
$90.82 -
Harken Black Magic Headpost - 75/100 mm (2 15/16"/3 15/16") - SP-072
$86.59 -
14% offSchaefer 7 Series Universal Adapter - 78-70
$77.29 -
Ronstan Aluminum BB Sheave
$76.33 - $109.62 -
Harken Aluminum Wire Sheave
$68.21 - $109.10 -
Harken Stanchion Mount Base - 061
$63.98 -
Schaefer 7 Series Cheek Pad - 55-61
$62.62 -
Schaefer Series 5-Cheek Block Pad - 55-60
$58.39 -
Ronstan Series 40/55 Swivel Shackle Base - RF4
$53.05 -
Harken Dual Bullet Sheave - 22 mm (7/8") - 161
$51.29 -
Lewmar Upstand Kit
$48.52 - $54.16 -
Harken Black Magic Sheave Assembly - 57 mm (2 1/4") - H-34389A
$45.70 -
Up to 9% offLewmar Becket Assembly (2-Pack)
$41.19 - $42.88 -
Barton Small Stand Up Block Base - 60330
$40.70