Spal30103011 5.2" Paddle Blade Puller Fan

Installed quickly on KTM 390 Duke. Just had to swap the wiring harness and shave off one bolt hole. Quieter and moves more air. Fan blades seem more robust than original.

I purchased this to upgrade my bike's radiator.This thing can move 10x the air, respectfully.My temp never goes over to the three bar tier like it used to while at stoplights or in traffic.I recommend upgrading the coolant to engine ice & a 1.6 bar radiator cap for maximum efficiency.You do need to swap the wiring loom from the old fan and remove a bit of plastic for proper fitment.

This SPAL "low profile" fan competes with few others in this particular 5.2" (blade) diameter and price group, however compared to those, I think THIS fan is far superior. First of all, it is probably the absolutely thinnest and higher performing fan available for its compact size. It seems well designed and there is evidence of high degree of quality control in this Italian company's manufacturing process. I double checked the specs and found them quite accurate in terms of mechanical dimensions and the current rating of the electric motor of this fan. My application is a motorcycle oil cooler with very little clearance - barely enough for any fan - behind the cooler. There are obstructions on both sides - hot exhaust pipes - and directly behind the cooler, so the physical dimensions of the fan had to be no more than actually specified by SPAL. I do not have the means to measure the air flow rate, but this fan is spec'd at 342 CFM (at zero static pressure), which seems accurate based on my empirical testing. The OEM does not specify the rotational speed of their fans, but I measured ~5840 RPM.The minimum current spec is 4.8A at 13.0Vdc, at zero static pressure, so that makes it about a 62W fan. I measured 4.35A drawn from my 12V motorcycle battery at nominal voltage (not under charge).The only possible negative I can think of is that it does not come with a finger guard. It is certainly powerful enough to hack off a finger, but the trade off is that a guard would lower the effective flow rate at the expensive of a safer operational fan. Note, there is an identical version with a guard, but apparently not sold by Amazon. The only other potential negative is that this fan is plastic as opposed to metal, but still specified as waterproof to make up for any compromise in overall rigidity and durability.Overall, this fan will work well in my application with no fitment modifications required, so I am a satisfied customer.

I bought this to get in front of the dreaded fan problems some model years experienced.I installed mine on a 2016 KTM Duke 390. It was a piece of cake. Toughest parts (which weren’t tough) was grinding down one post with a Dremel or other cutting tool and unplugging the plug.Note: you do not have to cut off the old plug and solder the wires onto the new fan! The spades can be removed from the plastic plug with a tiny screwdriver. Look for info on the web.The unit is well made, pumps a ton of air and is quiet. It drops the temperature by 30 degrees in 30 seconds using my IR gun.Highly recommended.BTW, I also upgraded the radiator cap to a better one, with a slightly higher pressure (1.8 BAR).

Bought this instead of the Aprilia OEM rad fan for my bike. This is the exact same unit that came off the bike, only at a third of the price as the oem. But it. Works great, fits perfect.