Also called FN4A-EL Predecessor F-4EAT
ATX | Production 2000–2013 | |
Manufacturer Ford Motor Company
Mazda Motor Company Class 4-speed transverse automatic transaxle Successor Ford FNR5/Mazda FS5A-EL | ||
The 4F27E is an electronically controlled 4-speed automatic transmission, used by Ford and Mazda. Ford's name for this transmission is 4F27E, Mazda's name for this transmission is FN4A-EL. This dipstick for this transmission says "M V" on the dipstick handle in Mazda vehicles. This transmission uses Mazda M5 fluid (Mazda part number: 0000-77-112E-01), which is NOT Mercon V or Mercon LV according to Mazda Technical Service Bulletin 0500116. This fluid is made by Idemitsu corporation (according to the label on the back of the Mazda bottle). Idemitsu sells the equivalent Type-M fluid in the aftermarket. The equivalent Ford fluid is FNR5 (Ford part number: XT-9-QMM5).
The 4F27E is a strengthened 4-speed F-4EAT automatic. It now has a four-element torque converter that includes a torque converter clutch and geartrain with two planetary gearsets, a transfer-shaft gear final drive, and a larger differential. The hydraulic control system of the 4F27E transaxle has six electronically controlled solenoids for shift feel (through line pressure control), shift scheduling (through shift valve position control) and TCC (torque converter clutch) apply, controlled by pulse-width modulation (PWM). The Mazda FS5A-EL (Ford FNR5) is the 5-speed successor to this transmission. It uses many of the same parts.
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