OCOCOO | High-Head SeriesOC-75A High-Flow Water Pump
12V · 720 L/h · 7 m Head · PWM · Brass G1/4
Pump and reservoir unit with the head pressure to push coolant through multi-block, multi-radiator loops.
12 L/min720 L/H · 190 GPH7.0 m23.0 FT HEAD1.4 A16.8 W DC 12VG1/4BRASS THREADS
Please read before ordering:
- The motherboard, CPU water block and 360 mm radiator shown in the photos are for illustration only and areNOT included.
- Fittings, tubing and coolant areNOT included. The G1/4″ threads are pre-machined and ready for your own fittings.
- Do not run the pump dry.Fill the reservoir through the top port and bleed the loop before first power-on.
- This model hasno RGB lighting. It is a performance pump, not a lighting feature.
Technical SpecificationsModelOC-75A DC brushless pumpRated VoltageDC 12 V (operating range DC 8–13.2 V)Rated Current1.4 APower Consumptionapprox. 16.8 WMax Flow Rate12 L/min (720 L/h / 190 GPH)Max Lift Head7.0 m (23.0 ft)Speed ControlPWM + FG (small 4-pin to motherboard)Power InterfaceLarge 4-pin Molex from PSUPort ThreadsDual brass G1/4″ femaleMotor3-phase DC brushless, high-torque 1.4 A driveNoise Level≤28 dBBody Dimensions75 × 75 × 105 mmTop Fill Cap25 mm (0.98 in) chrome knurled screw capConstructionTranslucent ABS tank, ultrasonically welded to the high-temperature ABS baseProtectionReverse polarity & over-current protectionCertificationCE, RoHSTwo Cables, Two ConnectionsLarge 4-pin (Molex)Power — red +12 V, black ground. Connects straight to the PSU so the 1.4 A draw never loads a motherboard fan headerSmall 4-pin (PWM / FG)Speed — connects toCPU_FAN,SYS_FANorW_PUMPfor thermal speed control and RPM monitoring
Both cables must be connected. Powering only the small 4-pin will not run the pump.
What’s in the Box1 × OC-75A High-Power Water Pump Unit1 × Shock-Absorbing Rubber Pad1 × Double-Sided Adhesive Tape4 × M3×12 Shock-Absorbing Screws4 × M3×6 Base Installation Screws
Fittings, tubing, coolant, radiator and water blocks are sold separately and are not included.
Why This Pump7.0 m of Head Pressure
Enough static pressure to keep flow moving through several water blocks and a dense multi-radiator loop.720 L/h Flow
High-volume circulation for large cases, external radiators and workstation builds.Solid Brass G1/4″ Threads
Machined brass inserts hold torque far better than plastic threads and resist cross-threading during repeated fitting changes.Chrome Knurled Fill Cap
Top port for fast filling and air bleeding without pulling the pump out of the chassis.Integrated Translucent Reservoir
Visible fluid level and a built-in air gap, so the pump always has coolant to draw from.Ultrasonically Welded Tank
Seamless fusion instead of glue lines — one less place for a slow leak to start.Compatibility
- Standard G1/4″ female ports accept all common compression, barb and rotary fittings.
- Fits ATX, M-ATX and ITX chassis layouts at 65 × 65 × 82 mm.
- Mounts with the included adhesive pad or through the base screw holes.
- Best suited to loops with two or more blocks and/or radiators, where extra head pressure matters.
- Pump and reservoir are combined in one unit — no separate reservoir needed, but a fill point is still required to prime the loop.
FAQ
Can I power it from a motherboard fan header?
No. At 1.4 A it needs the Molex feed from the PSU. The small 4-pin cable is for PWM and RPM signal only.
Does it light up?
No. This model has no RGB or ARGB lighting.
Are fittings included?
No. The brass G1/4″ threads are ready, but fittings, tubing and coolant are not part of the package.
Is this quieter than a D5?
It runs at ≤28 dB. It is a quiet pump, but it is built for head pressure rather than for being inaudible — if silence is the priority, choose a lower-flow model.
OCOCOO · OC-75A HIGH-POWER WATER PUMP
Every unit is tested before packing. Shipping, returns and warranty are handled according to the terms shown on th
