Raymarine Marine Electronics - Cylinder Ram Size Chart

Hydraulic

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Use the table below to determine which Raymarine hydraulic pump is appropriately sized for your steering ram.

Important Note

The information given in this table should be used for guidance only, if you are in any doubt as to the correct drive unit contact Raymarine’s Customer Support Team or consult with an authorized Raymarine dealer for further application advice.

Manufacturer and Cylinder Ram Model Number	VOLUME CC	VOLUME CU IN	RAYMARINE PUMP	SPECIAL NOTES
.				.
BCS	.	.	.	.
MT50	142cc	8.7cu in	Type 1	See Note (1)
MT80	195cc	12cu in	Type 1 / Type 2	See Note (1)
MType 105	261cc	15.9cu in	Type 2 / Type 3	See Note (1)
MType 215	530cc	32.3cu in	CR2	.
MType 300	750cc	45.8cu in	CR2	.
MType 360	917cc	55.9cu in	CR2	.
MT450	1266cc	77.2cu in	-	See Note (2)
MT550	1388cc	84.7cu in	-	See Note (2)
MT800	1984cc	121cu in	-	See Note (2)
MType 1160	2884cc	176cu in	-	See Note (2)
MType 1600	3856cc	235.2cu in	-	See Note (2)
.	.	.	.	.
HY-DRIVE	.	.	.	.
310	162cc	9.9cu in	Type 1 / Type 2	See Note (1)
312	105cc	6.4cu in	Type 1	See Note (1)
313	195cc	11.9cu in	Type 1 / Type 2	See Note (1)
314	310cc	18.9cu in	Type 2 / Type 3	See Note (1)
316	144cc	8.8cu in	Type 1	See Note (1)
.	.	.	.	.
HYNAUTIC	.	.	.	.
K1	198cc	12.1cu in	Type 1 / Type 2	See Note (1)
K2	288cc	17.6cu in	Type 2 / Type 3	See Note (1)
K3	379cc	23.1cu in	Type 3 / CR1	See Note (1)
K4	500cc	30.5cu in	CR1 / CR2	See Note (1)
K10	123cc	7.5cu in	Type 1	See Note (1)
K11	180cc	11.8cu in	Type 1 / Type 2	See Note (1)
K12	141cc	8.6cu in	Type 1	See Note (1)
K13	180cc	11cu in	Type 1 / Type 2	See Note (1)
K14	141cc	8.6cu in	Type 1	See Note (1)
K16	115cc	7cu in	Type 1	See Note (1)
K17	147cc	9cu in	Type 1	See Note (1)
K18	136cc	8.3cu in	Type 1	See Note (1)
K19	148cc	9cu in	Type 1	See Note (1)
K20	136cc	8.3cu in	Type 1	See Note (1)
K22	218cc	13.3cu in	Type 1 / Type 2	See Note (1)
K24	109cc	6.6cu in	Type 1	See Note (1)
K25	218cc	13.3cu in	Type 1 / Type 2	See Note (1)
K26	262cc	16cu in	Type 2 / Type 3	See Note (1)
K27	218cc	13.3cu in	Type 1 / Type 2	See Note (1)
K28	262cc	16cu in	Type 2 / Type 3	See Note (1)
K29	262cc	16cu in	Type 2 / Type 3	See Note (1)
K31	418cc	25.5cu in	Type 3 / CR1	See Note (1)
K32	328cc	20cu in	Type 2 /Type 3	See Note (1)
K33	377cc	23cu in	Type 3 / CR1	See Note (1)
K51	167cc	10.2cu in	Type 1 / Type 2	See Note (1)
.	.	.	.	.
KOBELT		.	.	.
(Model 7040)	.	.	.	.
B7.5	180cc	11cu in	Type 1 / Type 2	See Note (1)
B5.5	131cc	8cu in	Type 1	See Note (1)
B10	239cc	14.6cu in	Type 2	.
(Model 7050)	.	.	.	.
.B7.5	333cc	20.3cu in	Type 2 / Type 3	See Note (1)
B10	442cc	27cu in	Type 3 / CR1	See Note (1)
B12	531cc	32.4cu in	CR2	.
(Model 7080)	.	.	.	.
B7.5	718cc	43.8cu in	CR2	.
B12	1149cc	70.1cu in	CR2	.
B16	1531cc	93.4cu in	-	See Note (2)
(Model 7094)	.	.	.	.
U12	4326cc	264cu in	-	See Note (2)
U16	5768cc	352cu in	-	See Note (2)
U20	7210cc	440cu in	-	See Note (2)
U24	8652cc	528cu in	-	See Note (2)
U30	10815cc	660cu in	-	See Note (2)
(Model 7096)	.	.	.	.
U16	12979cc	792cu in	-	See Note (2)
U20	16223cc	990cu in	-	See Note (2)
U24	19468cc	1188cu in	-	See Note (2)
U30	24318cc	1484cu in	-	See Note (2)
U36	29185cc	1781cu in	-	See Note (2)
.	.	.	.	.
.	.	.	.	.
LS (POMPES)	.	.	.	.
(Outboard Cyl.)	.	.	.	.
28ST HB/HBR	141.6cc	8.64cu in	Type 1	See Note (1)
VHM228	106cc	6.4cu in	Type 1	See Note (1)
VHM232	112cc	6.8cu in	Type 1	See Note (1)
(Inboard Cyl.)	.	.	.	.
VHM45 DT	240cc	14.6cu in	Type 2	.
VHM45.228	268cc	16.3cu in	Type 2 / Type 3	See Note (1)
VHM60 DT	505cc	30.8cu in	CR2	.
VHM28 DTP	69.2cc	4.2cu in	-	See Note (2)
VHM32 DTP	120.5cc	7.35cu in	Type 1	See Note (1)
VHM40 DTP	191cc	11.6cu in	Type 1 / Type 2	See Note (1)
VHM40.254	239cc	14.5cu in	Type 2	.
VHM50 DTP	352cc	21.5cu in	Type 3 / CR1	See Note (1)
VHM50.300	464cc	28.3cu in	CR1	.
VHM60.300	664cc	40.5cu in	CR2	.
VHM80 DT	1167cc	71.2cu in	CR2	.
VHM90 DT	1567cc	95.6cu in	-	See Note (2)
VHM110 DT	3076cc	187.7cu in	-	See Note (2)
VHM120 DT	3798cc	231.8cu in	-	See Note (2)
(Double Cyl. system)	.	.	.	.
VHM32 T	242cc	14.7cu in	Type 2
VHM40 T	378cc	23cu in	Type 3 / CR1	See Note (1)
.	.	.	.	.
MARCON	.	.	.	.
MC10	118cc	7.2cu in	Type 1	See Note (1)
MC12	152cc	9.3cu in	Type 1	See Note (1)
MC14	118cc	7.2cu in	Type 1	See Note (1)
MC16	152cc	9.3cu in	Type 1	See Note (1)
MC18	118cc	7.2cu in	Type 1	See Note (1)
MC20	152cc	9.3cu in	Type 1	See Note (1)
MC22	118cc	7.2cu in	Type 1	See Note (1)
MC24	152cc	9.3cu in	Type 1	See Note (1)
MC40	152cc	9.3cu in	Type 1	See Note (1)
MC41	152cc	9.3cu in	Type 1	See Note (1)
MC42	197cc	12cu in	Type 1 / Type 2	See Note (1)
MC43	197cc	12cu in	Type 1 / Type 2	See Note (1)
MC44	152cc	9.3cu in	Type 1	See Note (1)
MC46	197cc	12cu in	Type 1 / Type 2	See Note (1)
MC60	225cc	13.7cu in	Type 1 / Type 2	See Note (1)
MC62	288cc	17.6cu in	Type 2 / Type 3	See Note (1)
MC64	225cc	13.7cu in	Type 1 / Type 2	See Note (1)
MC66	288cc	17.6cu in	Type 2 / Type 3	See Note (1)
MC50B	121cc	7.4cu in	Type 1	See Note (1)
.	.	.	.	.
.	.	.	.	.
MAROL	.	.	.	.
MRB-30	75cc	4.6cu in	ST5	.
MRB-50	108cc	6.6cu in	Type 1	See Note (1)
MRB-63	154cc	9.4cu in	Type 1	See Note (1)
MRB-80	395cc	24.1cu in	Type 3 / CR1	See Note (1)
.	.	.	.	.
MORSE	.	.	.	.
HS3000 (303932)	107cc	6.5cu in	Type 1	See Note (1)
HS4000 (303942)	188cc	11.5cu in	Type 1 / Type 2	See Note (1)
HS5000 (308610)	222cc	13.6cu in	Type 1 / Type 2	See Note (1)
.	.	.	.	.
SEIPEM	.	.	.	.
CD101	170cc	10.4cu in	Type 1 / Type 2	See Note (1)
S151	320cc	19.5cu in	Type 2 / Type 3	See Note (1)
S221	440cc	26.8cu in	Type 3/CR1	See Note (1)
S301	530cc	32.3cu in	CR2	.
S501	540cc	32.9cu in	CR2	.
S701	1000cc	61cu in	CR2	.
S1001	1680cc	102.5cu in	-	See Note (2)
S1501	2700cc	164.7cu in	-	See Note (2)
CV31	56cc	3.4cu in	-	See Note (2)
CV50	75cc	4.6cu in	Type 1	.
CV51	81cc	4.9cu in	Type 1	.
CV75	109cc	6.6cu in	Type 1	See Note (1)
CV76	118cc	7.2cu in	Type 1	See Note (1)
.	.	.	.	.
SERVI				.
MA40	120cc	7.3cu in	Type 1	See Note (1)
MA60	141cc	8.6cu in	Type 1	See Note (1)
MA120	294cc	17.9cu in	Type 2 / Type 3	See Note (1)
MA200	500cc	30.5cu in	CR1 / CR2	See Note (1)
MA300	750cc	45.7cu in	CR2
MA500	1270cc	77.5cu in	-	See Note (2)
.	.	.	.	.
SLEIPNER	.	.	.	.
LS450	90cc	5.5cu in	ST5	.
LS451	152cc	9.3cu in	Type 1	See Note (1)
LC452	129cc	7.9cu in	Type 1	See Note (1)
LC453	240cc	14.6cu in	Type 2	.
LC454	268cc	16.3cu in	Type 2 / Type 3	See Note (1)
LC455	505cc	30.8cu in	CR2	.
LC456	646cc	39.4cu in	CR2	.
LC457	750cc	45.8cu in	CR2	.
LC458	1167cc	71.2cu in	CR2	.
LC459	1567cc	95.6cu in	-	See Note (2)
LC460	3076cc	187.6cu in	-	See Note (2)
LC461	3798cc	231.7cu in	-	See Note (2)
SP30 (71030)	68cc	4.2cu in	-	See Note (2)
SP60 (71060)	125cc	7.6cu in	Type 1	See Note (1)
SP90 (71090)	215cc	13cu in	Type 1 / Type 2	See Note (1)
.	.	.	.	.
TELEFLEX / SEASTAR	.	.	.	.
BA125-7	118cc	7.2cu in	Type 1	See Note (1)
BA135-7	139cc	8.5cu in	Type 1	See Note (1)
BA137-7	139cc	8.5cu in	Type 1	See Note (1)
BA150-7	167cc	10.2cu in	Type 1 / Type 2	See Note (1)
BA175-7	216cc	13.2cu in	Type 1 / Type 2	See Note (1)
BA200-7	310cc	18.9cu in	Type 2 / Type 3	See Note (1)
BA200-11	486cc	18.9cu in	CR1	.
(Sterndrive Cyl.)	.	.	.	.
125-8EM	161cc	9.8cu in	Type 1 / Type 2	See Note (1)
BA135-8EM	155cc	9.4cu in	Type 1	See Note (1)
BA150-7EM	168cc	10.2cu in	Type 1 / Type 2	See Note (1)
.	.	.	.	.
.	.	.	.	.
TENFJORD	.	.	.	.
JR1.10	100cc	6.1cu in	Type 1	See Note (1)
JR1.20	210cc	12.8cu in	Type 1 / Type 2	See Note (1)
JR1.25	214cc	13cu in	Type 1 / Type 2	See Note (1)
JR1.30	340cc	20.7cu in	Type 2 / Type 3	See Note (1)
JR1.35	367cc	22.4cu in	Type 3 / CR1	See Note (1)
JR1.50	565cc	34.5cu in	CR2	.
JR1.60	540cc	32.9cu in	CR2	.
JR1.100	1174cc	71.6cu in	CR2	.
.	.	.	.	.
.	.	.	.	.
VETUS	.	.	.	.
MType 30	67cc	4.1cu in	-	See Note (2)
MT45	152cc	9.3cu in	Type 1	See Note (1)
MT52	104cc	6.3cu in	Type 1	See Note (1)
MT65	152cc	9.3cu in	Type 1	See Note (1)
MT72	146cc	8.9cu in	Type 1	See Note (1)
MT80	190cc	11.6cu in	Type 1 / Type 2	See Note (1)
MType 105	261cc	16cu in	Type 2 / Type 3	See Note (1)
MType 110	275cc	16.8cu in	Type 2 / Type 3	See Note (1)
MType 125	253cc	15.5cu in	Type 2 / Type 3	See Note (1)
MType 140	350cc	21.3cu in	Type 3	.
MType 175	356cc	21.7cu in	Type 3 / CR1	See Note (1)
MType 215	532cc	32cu in	CR2	.
MType 225	500cc	30.5cu in	CR1 / CR2	See Note (1)
MType 340	750cc	45.8cu in	CR2	.
MT450	1000cc	61cu in	CR2	.
MT600	1319cc	80.5cu in	-	See Note (2)
MT900	1978cc	120.7cu in	-	See Note (2)
MType 1200	2638cc	161cu in	-	See Note (2)
OB35	106cc	6.44cu in	Type 1	See Note (1)
OB85	170cc	10.35cu in	Type 1	See Note (1)
.	.	.	.	.
.	.	.	.	.
WAGNER			.	.
N-65	98cc	6cu in	ST5	.
N-85	128cc	7.8cu in	Type 1	See Note (1)
N40-120	127cc	7.7cu in	Type 1	See Note (1)
N40-190	200cc	12.2cu in	Type 1 / Type 2	See Note (1)
N50-190	314cc	19.1cu in	Type 2 / Type 3	See Note (1)
N50-300	495cc	30.2cu in	CR1	.
N80-190	802cc	49cu in	CR2	.
N80-300	1267cc	77.3cu in	-	See Note (2)
N-175-750	241cc	14.7cu in	Type 2	.
N-175-1000	321cc	19.6cu in	Type 2 / Type 3	See Note (1)
N-250-800	541cc	33cu in	CR2	.
N-250-1000	680cc	41.5cu in	CR2	.
N-250-1300	878cc	53.6cu in	CR2	.
N-350-1200	1541cc	94cu in	-	See Note (2)
T-2	162cc	9.9cu in	Type 1 / Type 2	See Note (1)
T-3	377cc	23cu in	Type 3 / CR1	See Note (1)
T-4	511cc	31.2cu in	CR2	.
T-5	685cc	41.8cu in	CR2	.
T-10	893cc	54.5cu in	CR2	.
T-11	893cc	54.5cu in	CR2	.
T-12	1257cc	76.7cu in	-	See Note (2)
T-12B	1508cc	92cu in	-	See Note (2)
T-13	1257cc	76.7cu in	-	See Note (2)
T-13B	1508cc	92cu in	-	See Note (2)
.	.	.	.	.
.	.	.	.	.
WHITLOCK SQUADRON	.	.	.	.
(Inboard Cyl.)	.	.	.	.
SRK222	115.6cc	7.05cu in	Type 1	See Note (1)
SRK173	173cc	10.5cu in	Type 1 / Type 2	See Note (1)
SRK116	222cc	13.47cu in	Type 1 / Type 2	See Note (1)
(Outboard Cyl.)	.	.	.	.
SOB200	132.11cc	8.05cu in	Type 1	See Note (1)
SOB200	163.24cc	9.97cu in	Type 1 / Type 2	See Note (1)
SOB168	168cc	10.25cu in	Type 1 / Type 2	See Note (1)
(Sterndrive Cyl.)	.	.	.	.
SSD133(B)	132.11cc	8.05cu in	Type 1	See Note (1)
SSD135(UB)	132.11cc	8.05cu in	Type 1	See Note (1)
.	.	.	.	.
.	.	.	.	.
WILLS - RIDLEY	.	.	.	.
T.50	136cc	8.3cu in	Type 1	See Note (1)
T.100	283cc	17.3cu in	Type 2 / Type 3	See Note (1)
T.160	354cc	21.6cu in	Type 3 / CR1	See Note (1)
W.1(1.11/16)	403cc	24.6cu in	Type 3 / CR1	See Note (1)
W.1(1.7/8)	508cc	31cu in	CR2	.
W.2(2.3/8)	800cc	48.8cu in	CR2	.
W.2(2.7/8)	1171cc	71.4cu in	CR2	.
W.3(75)	1706cc	104cu in	-	See Note (2)
W.3(85)	2181cc	133cu in	-	See Note (2)
W.3(95)	2722cc	166cu in	-	See Note (2)
R. 2.5/9	543cc	33.13cu in	CR2	.
R. 2.5/12	724cc	44.18cu in	CR2	.
R. 3.25/8	927cc	56.5cu in	CR2	.
R. 3.25/11.25	1304cc	79.5cu in	-	See Note (2)
R4/11.25	1984cc	121cu in	-	See Note (2)
R.5/11.5	2952cc	180cu in	-	See Note (2)
R.5/15.5	3968cc	242cu in	-	See Note (2)
2R. 3.25/11.25	2608cc	159cu in	-	See Note (2)
.	.	.	.	.

Selection Chart Notes

The recommended Raymarine pump in the following tables has been determined by cylinder displacement alone and should result in a nominal hardover to hardover time of 10 secs. The formula below can be used to determine the hardover time:

Hardover Time = (Ram Capacity) X 60 (Peak Flow Rate)

Note (1): Where the choice of two or more pumps are indicated the type, displacement and steering characteristics of the vessel should be considered. By choosing the larger pump with an increased flow rate a faster hardover time can be achieved, which on some vessels will result in improved Autopilot helm response and course keeping.

Note (2): The ram indicated is outside the Raymarine range of pumps.

The information given in this document should be used for guidance only, if you are in any doubt as to the correct drive unit contact Raymarine’s Customer Support Team for further application advice.

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