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Seal/Repair Kits
Harken offers seal and repair kits for cylinders and vangs. A seal kit includes the static gland 
seals, piston seal, rod seal and wiper, and set screws. A repair kit additionally includes wear 
bands, port fittings, pin end fasteners, and other required components when needed. If a 
cylinder was sold prior to 2014 please contact Harken to confirm the seal or repair kit part 
number. Cylinders sold after 2014 will have a "K" at the end of the part number.
Ordering Single-Acting & Double-Acting Cylinders
To order use the chart below. Standard cylinders are black hardcoat-anodized with clevises on both ends. Additional cylinder and rod end options 
of marine eyes, barrel pin eyes, lashing eyes, and blank end fittings are available for a slight upcharge. For optional materials and fittings, replace 
the last three letters of the part number with your selections.
Hardcoat
Clear-anodized
No fitting
Marine 
eye
Lashing 
eye
Clevis
Blank
Clevis
Marine 
eye
Lashing 
eye
Barrel-pin 
eye
Standard Cylinder Part Number
Seal/Repair Kit Part Number
Cylinder end fittings 
C = Clevis: (standard)
B =  Barrel-pin eye 
L =  Lashing eye  
M = Marine eye 
X = Blank 
Rod end fittings 
C = Clevis: (standard)
L = Lashing eye
M = Marine eye 
N = No fitting
Cylinder
Action type
S = Single-acting
D = Double-acting
Bore diameter (mm)
Rod diameter (mm)
Stroke length (mm)
Materials 
B = Black hardcoat 
(standard)
C = Clear-anodized 
aluminum 
HYCS035130350BCC
Sold After 2014 
(If sold before 2014 please contact Harken)
Rod
Bore 
Type
R = Repair
S = Seal
Cylinder Type
S = Single/Double Acting
P = Double Pull
HYKRCSXXXXXK
Materials
Rod End Fittings
Cylinder End Fittings

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