ACO-51201R / 51201R Aviation Fuel Filter Cartridge

Hydraulic Oil Filter Element

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Air Compressor Filter

COMPRESSOR LINE FILTER PRECESION FILTETR AIR FILTER AIR OIL SEPARATOR OIL FILTER TEFILTER ATLAS INGERSOLL FUSHENG SULLAIR COMPAIR LIUTECH

Precision Filter Element

ATLAS HANKISON DOMNICK HUNTER ULTRA FILTER SULLAIR PARKER FILTER HIROSS ZANDER ORION SMC BEA JM

Air Filter Serve Valve Filter

AIR BREATHER FILTER SERIES FACET 22050 HYDRAULIC AIR BREATHER FILTER SERIES PRESSING AIR BREATHER FILTER SERIES LOCKABLE AIR BREATHER FILTER SERIES DUST FILTER CARTRIDGE

Hydraulic Filters

RETURN LINE FILTER SERIES LARGE FLOW RETURN OIL FILTER DUPLEX FILTERS SERIES TANK MOUNTED MINI-TYPE RETURN FILTER SERIES PRESSURE LINE FILTER SERIES MAGNETIC FILTER SERIES TANK MOUNTED RETURN FILTER SERIES TANK MOUNTED SELF-SEALING SUCTION FILTER SERIES SUCTION FILTER

Filter Cart

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Sintered Filter

SINTERED FILTER

TBM series filter

EPB FILTER ELEMENT TBM FILTER ELEMENT TUNNEL BORING MACHINE FILTER SHIELD MACHINE FILTER

Water Filter Element

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ACO-51201R / 51201R Aviation Fuel Filter Cartridge

Notice: ACO-51201R is an aviation fuel water-separator cartridge, used in certificated aviation fueling equipment. It has been marked obsolete by the manufacturer and superseded by ACOX-512B. The information below is provided for part identification purposes only. Please contact us to discuss documentation and certification requirements, or to confirm the current replacement part.

ACO-51201R (also written 51201R) is a Parker Velcon Aquacon® series water-absorbing filter cartridge used in aviation fuel filtration systems, designed to remove free and emulsified water and particulate contaminants from jet fuel and avgas.

Technical Specifications

Part Type	Aviation fuel water-separator / coalescing-monitor cartridge
OEM Brand	Parker Velcon (Aquacon series)
Micron Rating	0.5 µm at >98% efficiency
Outer Diameter	142.9 mm / 5.625 in
Inner Diameter	47.6 mm / 1.875 in
Overall Length	311.2 mm / 12.25 in
Maximum Flow Rate	50 GPM
Maximum Operating Temperature	160 °F / 71.1 °C
Housing Fitment	Fits VF-61 housing, outside-to-in flow
Qualification	EI 1583 7th Edition, R Series
Status	Obsolete — superseded by ACOX-512B

Part Type

Aviation fuel water-separator / coalescing-monitor cartridge

OEM Brand

Parker Velcon (Aquacon series)

Micron Rating

0.5 µm at >98% efficiency

Outer Diameter

142.9 mm / 5.625 in

Inner Diameter

47.6 mm / 1.875 in

Overall Length

311.2 mm / 12.25 in

Maximum Flow Rate

50 GPM

Maximum Operating Temperature

160 °F / 71.1 °C

Housing Fitment

Fits VF-61 housing, outside-to-in flow

Qualification

EI 1583 7th Edition, R Series

Status

Obsolete — superseded by ACOX-512B

Compatible Equipment & Applications

ACO-51201R cartridges are used in:

Airport fuel farm and hydrant fueling systems

Aviation refueler trucks and fuel monitor housings using the VF-61 housing

This part is not used with fuels containing anti-icing additives. Please confirm current qualification requirements and whether ACOX-512B (the current replacement) is required for your installation before ordering.

OEM & Cross-Reference Numbers

Brand / Reference	Part Number
Parker Velcon	ACO-51201R
Parker Velcon (current replacement)	ACOX-512B
Prior Velcon numbers replaced by this part	FG-0-512-7, FG-0-512-2, ACO-51201P, ACO-51201N
HIFI FILTER (indirect match)	SN40126
DeMalong Filter	Contact us to discuss availability and documentation

Brand / Reference

Part Number

Parker Velcon

ACO-51201R

Parker Velcon (current replacement)

ACOX-512B

Prior Velcon numbers replaced by this part

FG-0-512-7, FG-0-512-2, ACO-51201P, ACO-51201N

HIFI FILTER (indirect match)

SN40126

DeMalong Filter

Cross-reference numbers are provided for identification purposes only. DeMalong Filter Inc. is not affiliated with, sponsored by, or manufactured by Parker Velcon or any brand referenced above. All trademarks belong to their respective owners.