Welcome to Defender Canada! 
Block Accessories
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7% offHarken Stand-Up Spring - 22 mm (7/8") - 071
$2.34$2.16 -
7% off
Harken Stand-Up Spring - 19 mm (3/4") - 097
$2.60$2.41 -
Barton Plain Bearing Rope Sheave - 64804
$5.08 -
18% offRonstan Link Retainer Clips - RF40001
$6.60$5.40 -
Barton Stainless Steel Stand Up Spring
$6.41 - $16.84 -
Ronstan Replacement 55 Series Retainer Clip - RF50001
$7.08 -
Ronstan Series 40 Standup Spring - RF319
$7.73 -
18% off
Ronstan Link Retainer Clips - RF40002
$9.62$7.82 -
Barton Tapered Spring for Stand-Up Block - 60119
$8.08 -
Barton Size 2 Curved Backing Plate for Cheek Block - N02161
$10.38 -
19% off
Ronstan Replacement 70 Series Retainer Clip - RF70001
$13.00$10.52 -
Barton Size 3 Curved Backing Plate for Cheek Block - N03161
$13.27 -
Ronstan Series 55 BB Link Retainer Clips - RF50003
$14.49 -
Barton Plastic Stand Up Spring
$14.88 -
39% offLewmar Block Upstand Kit - 29904050
$25.22$15.38 -
Ronstan Curved Surface Cheek Block Adapter - RF41153
$15.54 -
Ronstan Series 55 BB & RT Link Retainer Clips - RF50002
$15.54 -
Barton Stainless Steel Swivel
$17.32 - $23.95 -
14% offSchaefer Delrin Base - 35-019
$23.63$20.18 -
9% offLewmar Size 1 HTX Spare Rubber Buffer Kit - 291219911
$22.82$20.59 -
14% offSchaefer Delrin Sheave - 2" - 62-018
$29.56$25.22 -
14% offSchaefer Delrin Sheave - 2" - 62-051
$29.56$25.22 -
14% offSchaefer Delrin Sheave - 1 7/16" - 62-030-02
$29.56$25.22 -
9% offLewmar Size 0 Delrin Balls (100-Pack) - 29174022
$28.18$25.42 -
Spinlock Replacement T50 Sheave
$25.78 - $59.25 -
19% offRonstan Stand-up Base - RF2457
$36.00$28.92 -
Barton Ball Bearing Rope Sheave
$30.19 - $35.17 -
9% offLewmar Becket Assembly (2-Pack)
$41.98 - $44.74$37.84 - $40.33 -
9% offLewmar Upstand Kit
$47.50 - $53.02$42.81 - $47.78 -
14% offSchaefer Series 5-Cheek Block Pad - 55-60
$51.64$43.99 -
14% offSchaefer 7 Series Cheek Pad - 55-61
$55.78$47.50 -
24% offSchaefer Series 5 Upset Shackle with Universal Adapter - 78-50
$64.06$48.19 -
9% offHarken Stanchion Mount Base - 061
$61.25$55.19 -
14% offSchaefer 7 Series Universal Adapter - 78-70
$80.62$68.62 -
9% offLewmar HTX Upstand Kit
$91.66 - $200.68$82.56 - $180.67 -
14% offSchaefer Aluminum Sheave - 2" - 62-023-15BW
$113.74$96.77 -
14% offSchaefer Series 5 Deck Plate Adapter - 504-02
$133.06$113.19 -
14% offSchaefer Aluminum Sheave - 2" - 62-023-15CW
$134.44$114.37 -
Barton Flush Mount Deck Plate
$140.68 - $182.41 -
14% offSchaefer 7 Series Deck Plate - 704-02
$174.46$148.38 -
9% offLewmar Size 3 NTR Upstand Assembly - 29473024
$174.46$157.08 -
24% offSchaefer 7 Series Universal Adapter - 704-12
$217.24$163.08 -
9% offHarken Midrange ESP Stand-up Base - 1634
$181.31$163.25 -
9% offLewmar Size 3 Stand Up Base - 29393000
$196.54$176.95 -
9% offHarken Sheave - 76 mm (3") - 500
$330.35$297.38 -
Spinlock TWR Line Organizer
$344.91 - $789.61 -
9% offLewmar Articulated Sheave - 6" - 89100032
$480.86$432.84