Cylinder Model |
Bore (nominal) | Shaft (nominal) | Stroke | Displacement | Weight | Seafirst Model Number | Cylinder Drawing | Typical Applications | Price | ||||||||||
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mm | inch | mm | inch | mm | inch | (cc) | (cu in) | lbs (kg) | |||||||||||
HC 150 B-5 | 40 | 1 1/2 | 20 | 3/4 | 127 | 5 | 120 | 7.3 | 12.0 (5.44) | IOC-4020 | View Drawing | WAGNER N-40-120 or other short stroke Heavy Duty applications / Jet Boats | $840.00
35 in Stock |
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HC 150 B-7 | 40 | 1 1/2 | 20 | 3/4 | 178 | 7 | 168 | 10.2 | 13.3 (6.03) | IOC-4021 | View Drawing | Heavy Duty similar replacement for Teleflex/Seastar HC5318 / BA 150-7 | $840.00
14 in Stock |
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HC 150 B-7C
Compact |
40 | 1 1/2 | 16 | 5/8 | 178 | 7 | 188 | 11.4 | 9.3 (4.22) | IOC-4520 | View Drawing | EXACT “Plug & Play” Hynautic K-51 Replacement | $825.00
28 in Stock |
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HC 150 B-9 | 40 | 1 1/2 | 20 | 3/4 | 229 | 9 | 215 | 13.2 | 14.7 (6.67) | IOC-4022 | View Drawing | Heavy Duty similar replacement for Hynautic K1-B, Teleflex HC 5369 / BA 150-9 | $950.00
9 in Stock |
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Cylinder Model |
Bore (nominal) | Shaft (nominal) | Stroke | Displacement | Weight | Seafirst Model Number | Cylinder Drawing | Typical Applications | Price | ||||||||||
mm | inch | mm | inch | mm | inch | (cc) | (cu in) | lbs (kg) | |||||||||||
HC 175 B-7C
Compact |
45 | 1 3/4 | 20 | 3/4 | 178 | 7 | 227 | 13.8 | 13.6 (6.17) | IOC-4520 | View Drawing | Compact HD 1.75″ Bore cylinder – HD similar Replacement for Teleflex HC 5319 / BA175-7 | $995.00
33 in Stock |
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HC 200 B-7 | 50 | 2 | 25 | 1 | 178 | 7 | 262 | 16.0 | 25.7 (11.66) | IOC-5024 | View Drawing | Heavy Duty similar replacement for Teleflex HC5351 / Seastar BA 200-7 or Jastram B 200-7 (new July 07) | $1,115.00
14 in Stock |
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HC 200 B-9 | 50 | 2 | 25 | 1 | 229 | 9 | 337 | 20.5 | 29.0 (13.15) | IOC-5025 | View Drawing | Heavy Duty similar replacement for Hynautic K3-B, Teleflex HC5802HY or Jastram B 200-9 | $1,325.00
0 in Stock |
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HC 200 B-11 | 50 | 2 | 25 | 1 | 280 | 11 | 411 | 25.1 | 31.3 (14.20) | IOC-5026 | View Drawing | Heavy Duty similar replacement for Hynautic K-4, Teleflex HC5378 / BA 200-11, Jastram B 200-12 or Hynautic K-31 | $1,450.00
15 in Stock |
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HC 250 B-9 | 63 | 2 1/2 | 25 | 1 | 229 | 9 | 600 | 36.6 | 37.8 (17.15) | IOC-6325 | View Drawing | EXTRA Heavy Duty similar replacement for Hynautic K4 or K8 | $1,550.00
6 in Stock |
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HC 250 B-11 | 63 | 2 1/2 | 25 | 1 | 280 | 11 | 734 | 44.9 | 39.8 (18.05) | IOC-6326 | View Drawing | Heavy Duty Brass, Annodized aluminum & Stainless replacement for Teleflex (steel HC 0328) | $1,780.00
6 in Stock |
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Cylinder Model |
Bore (nominal) | Shaft (nominal) | Stroke | Displacement | Weight | Seafirst Model Number | Cylinder Drawing | Typical Applications | Price | ||||||||||
mm | inch | mm | inch | mm | inch | (cc) | (cu in) | lbs (kg) |
Hydraulic Steering Cylinder Ram Size Chart & Cross Reference
Hynautic Steering Cylinder Ram Specifications

Wagner (Older Style) N-Series Specifications
Wagner (older style) N series cylinders