Remanufactured front oil pump for the Hyundai/Kia A6MF1 six-speed automatic, OE 46100-3B660, listed for 2.4L Sonata, Santa Fe and Elantra Touring.
If your Hyundai Sonata, Santa Fe or Elantra Touring with the 2.4L engine has started to engage slowly into Drive or Reverse once it is warm, flares on the 2-3 or 3-4 shift, or whines with engine speed, the front oil pump in the A6MF1 six-speed is one of the first parts to look at. This is a remanufactured complete pump assembly, OE number 46100-3B660. The housing, gears and body have been cleaned, inspected and tested, and it comes assembled with the stator support and front seal, so you are not building a pump on the bench.
The A6MF1 is Hyundai/Kia's own transverse six-speed, rated for engines up to 2.4 liters. The torque converter hub drives the pump gears, and the pump makes all of the pressure the transmission uses: line pressure for the six clutch and brake elements, feed for the eight valve body solenoids, converter charge, and cooler and lube flow. Every shift depends on it. The solenoids can only control pressure that the pump has already made, so a tired pump makes good solenoids look bad.
GearBoxList notes that the first version of this pump was mounted on a bushing and could spin when the transmission overheated. That is why heat-damaged A6MF1 units so often come apart with a scored pump body and a worn converter hub, and why the pump gets replaced rather than resealed.
The A6MF1 is also known for clogging its valve body when the fluid is left dirty, which gives harsh or jerky shifts. Debris from that kind of failure usually goes through the pump on its way, so check both.
Check the fluid level hot with the correct procedure first; low fluid causes every symptom above. Then look at live data with a scan tool: if commanded line pressure is normal but the unit flares and slips on several shifts while the solenoids test good, low pump output is a likely cause. Our guide on reading transmission live data explains what to watch, and shift flare vs slip helps separate a pressure problem from a timing problem. A whine that follows engine speed and changes when the converter is loaded points at the pump and hub; see converter hub and pump bushing wear.
This pump is listed for the 2.4L Hyundai Sonata 2009-2013, the 2.4L Santa Fe 2009-2012 and the 2012 Elantra Touring 2.4L. The A6MF1 and A6MF2 share this pump family, but Hyundai changed parts and transmission versions across model years and engines. Before you order, read the number on your old pump or on the transmission tag and match it to 46100-3B660, or send us your year and VIN and we will check it. More six-speed hard parts are in our hard parts collection.
If the pump failed because clutches burned, plan to overhaul the unit with the A6MF1/A6MF2 master rebuild kit. If the shift complaints came first, the 8-piece A6MF1 solenoid kit or a remanufactured A6MF1 valve body is worth doing while the pan is down.
| Transmission | Hyundai/Kia A6MF1 (A6MF2 family) six-speed automatic |
| OE part number | 46100-3B660 |
| Condition | Remanufactured, inspected and tested |
| Listed fitment | Sonata 2009-2013 2.4L, Santa Fe 2009-2012 2.4L, Elantra Touring 2012 2.4L |
| Item weight | 8.6 lb |
It is listed for the 2.4L Sonata 2009-2013, the 2.4L Santa Fe 2009-2012 and the 2012 Elantra Touring 2.4L, OE number 46100-3B660. Hyundai changed parts across years and versions, so match the number on your old pump or transmission tag, or send us your year and VIN to check.
It is remanufactured. The housing, gears and body have been cleaned, inspected and tested, and it ships as a complete assembly with the stator support and front seal.
Delayed engagement into Drive or Reverse when hot, slipping or flare on several shifts, a whine that follows engine RPM, and fresh clutches burning soon after an overhaul. Rule out low fluid and solenoid faults first.
Hyundai SP-IV ATF only. GearBoxList lists 7.1 liters total capacity, but a pump job does not empty the converter and cooler completely, so fill and check the level hot with the correct procedure.
Inspect the converter hub, flush the cooler and lines, and replace the filter. If the clutches are burnt, overhaul the unit with a master rebuild kit; if shift complaints came first, look at the solenoids and valve body too.
Yes. Clear the transmission adaptive values with a scan tool and complete a relearn drive so the computer learns shift pressures again with the new pump.
