The MCP35X™ pump is a substantial evolution from the long established MCP355 series. It differentiates itself from its sibling by two primary features. The MCP35X Swiftech pump housing has been redesigned to provide considerably enhanced hydraulic performance is compatible with multiple tubing options thanks to the adoption of the G1/4 port standard can host an optional "built-in" reservoir is also sold separately, and remains compatible with all MCP3XX series pumps. The motor is now PWM compatible, allowing variable speed control thru the motherboard from 1300 to 4500 rpm.



Users are reminded that disassembling their pump for any reason, including for the purpose of upgrading the housing, automatically voids the pump warranty. (Excludes Swiftech Pump Accessories)

Click Here for important PWM pump FAQ!

• Small Footprint: 2.4" x 2.4" x 1.36";
• 50,000 hours MTBF (Mean Time Between Failure) ;
• 12 Volts DC convenience: plugs into the computer power supply
• Variable speed control via PWM thru the motherboard, from 1300 rpm for completely silent operation, to 4500 rpm for ultra high flow performance;
• Superior head pressure and flow rate (in the useable range) to any pump in its footprint: the MCP35X™ is particularly well adapted to support multiple devices in the same loop, such as multiple radiators, and/or waterblocks;
• G1/4" ports standard for compatibility with a large assorment of fittings;
• No maintenance when used with distilled water, and anti-fungal additives (our HydrX™ additive is recommended);
• Quick installation with adhesive neoprene pad, or permanent installation with supplied hardware;
• Optional "built-in" reservoir;
• 1 year warranty

Motor type:	Electronically commutated, brushless DC, spherical motor
Nominal voltage:	12 V DC
Operating voltage range:	9 to 13.4 VDC
Max. nominal power (@12 V):	18 W
Max. nominal current (@12 V):	1.5 A
Max. nominal head (@12 V):	14.7 ft (4.4m)
Max nominal discharge (@12 V):	~ 4.75 GPM (17.5 LPM)
Maximum pressure:	22 PSI (1.5 BAR)
Temperature range:	Up to 140°F (60°C)
Electrical power connector:	Molex 4 pin
PWM + RPM Signals:	4-pin connector
RoHS:	Compliant
Port thread standard:	G1/4
MTBF:	50,000 Hours
Included:	MCP35x Pump Mounting Foam Mounting Screws 2 x G1/4 barbs

02-06-2014
Reviewer: 1800Allen (1)
This pump is recommended to go with a Monsoon bay reservoir and they paired and worked fantastically for almost 10 months then the motor seized on me. The double unfortunate part is that when you install the pump into the Monsoon reservoir it voids the warranty. I am purchasing another one because that is how good it was though.

01-19-2014
Reviewer: JCro-DarthBaggins (2)
Really the swiftech pump are good, especially this one. I purchased one of these pumps just due to trying to get a first time custom cooling build up and running. So far this pump has been a reliable work horse of a pump, a little noisy but I want function over-all.

08-27-2013
Reviewer: Givmedew (7)
As long as this pump is not rigidly mounted to your case and not in a bay reservoir it will be silent even at 100% pump speed. Do what you need to do to ensure it is decoupled from your case. If you put it in a bay reservoir you may have to play around with the reservoir mounting to get it silent. Any vibrations that transfer into the case are going to make the pump loud. Regardless of mounting though when the CPU is at idle this pump will be silent because of it reducing the pump speed. I have had mine for over a year running 24/7 and I bought it used with a x20 radiator but now it is in a XSPC Res/Top. Very happy with this thing!

11-18-2012
Reviewer: techienerd01 (1)
I recently purchased this pump, and I got it all installed and I was so happy to see my first watercooling system work! I was going to let it test run for a day or so before I applied power to the rest of my components so I avoided fried circuitry. But that never happened. I powered it off to adjust a pipe fitting (tightening one of the clamps) and it never turned back on. There wasn''t so much as a sound coming from it indicating that it was still trying to pump something out. I RMAed the pump to Swiftech this past Wednesday, and the pump arrived at Swiftech on the following day. So far, not so much as an email or a call from them saying if I was getting a new one or my old broken one. All in all, I wish I could have had the whole system running, but I''m glad I didn''t because then I would have been out a CPU and a Pump. Great pump while it worked... hopefully we get another soon.

11-17-2012
Reviewer: Satchmo (1)
Purchased 2 of these, and although one is still working fine the other one burned out last night, the board just fried. This is after 2 months use.