4EAT Transmission parts, repair guidelines, problems, manuals
R4AXEL, EC8
Transmission general data
| Number of gears | Transmission Type | Drive | Torque (Nm) | ATF (full capacity) L | ATF (change) L | ATF type |
|---|---|---|---|---|---|---|
| 4 | AT | FWD | 300 | 9,5 | 6 | Dexron III-VI / Mercon V |
The 4-speed automatic transmission Subaru 4EAT was manufactured in 1988 (EC8 = R4AX-EL). This transmission is related to the F-4EAT transmission model manufactured by Jatco. The modification released in 1999 was replaced the previous EC8 version on almost all popular Subaru models. This transmission was installed not only on low-powered Impreza and WRX, but also on middle class Forester and Outback with 2-2,5 liter engines, and even on powerful Legacy model with the engine capacity of 3 and 3.5 liters.
What are you looking for?
Overhaul Kit | Friction Kit | Friction | Steel Plate | Steel Kit | Band | Solenoid Kit | Solenoid EPC | Solenoid TCC | Pump | Shaft | Drum | Valve body | Torque converter | Hub | Piston | Piston Kit | Planetary Gear | Filter | Gasket | Bushing | Seal | Bearing | Pressure Plate | Stator | Differential | Retainer | Inhibitor Switch | Instruction manual | TOOLS & ACCESORIES | Sensor
Which cars run with this gearbox?
| Brand | Model | Year | Type | Engine |
|---|---|---|---|---|
| Saab | 9'2X | 04-06 | 4 SP F/4WD | L4 2.0L 2.5L |
| Subaru | BAJA | 03-06 | 4 SP 4WD | H4 2.5L H6 3.0L |
| Subaru | DEX | 08-10 | 4 SP F/4WD | H4 1.3L |
| Subaru | FORESTER | 98-12 | 4 SP 4WD | H4 2.0L 2.5L |
| Subaru | IMPREZA / WRX | 93-11 | 4 SP 4WD | H4 1.5L 1.6L 1.8L 2.0L 2.2L 2.5L |
| Subaru | LEGACY | 90-10 | 4 SP 4WD | H4 2.0L 2.2L 2.5L H6 3.0L 3.6L |
| Subaru | LOYALE | 88-90 | 4 SP 4WD | H4 1.8L |
| Subaru | OUTBACK | 00-10 | 4 SP 4WD | H4 2.5L H6 3.0L |
| Subaru | SVX | 92-97 | 4 SP 4WD | H6 3.0 3.3L |
| Subaru | XT | 87-91 | 4 SP RWD | H4 1.8L 2.7L |
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- Bearings, brg, Mainbearing
- Cover Bolt, Cover Bolts, Mounting Bolt, Mounting Bolts, Pan Bolt, Pan Bolts, stud, studs, Split Pin
- Bushings, Bush,
- Casing, casings, cases
- Circlips, Clip, Detent Cable Clip, Line Clip, Linkage Clip, Retainer Clip, Snap Ring, Snap Rings, Retaining Ring, Cover Retaining Ring, Retaining Ring, Circlip Kit, Kit Circlips, Kit Snap Ring, Kit Snap Ring,
- Dampers, Damper Assembly, Damper
- Right Axle Seal, Seal Left Axle, Left Axle Seal, Seal Right Axle Shaft seal, Seal Drive Shaft, Seal MC Drive Shaft, Seal MC Drive, Axle Seal Left, seal axle, Seal Drive Shaft, Seal 4WD Left Axle, Axle Seal
- Electrics, Electric, Electronic, Electronic Shift, Electronics, Pin Wiring, Relay Control Switch, Neutral Relay, Main Relay
- Extn Hsg, Extn.Hsg, Extensions, Extension, Overdrive Housing, TAIL HOUSING, TAIL EXTENSION
- Filters, Filter Cartridges, Filter Cartridge, Oil Pan Filter, Inlet, Filter Kit
- Friction Discs, Frictions, fric, Friction Disc, Friction, Friction Plate, Friction Ring, fric., Clutch Plate, Friction Lining
- Friction kits, friction pack, friction set, High Energy Clutch Friction Module, Friction clutch
- Gaskets, gsk, gskt, , Cover Gasket, Cover Gaskets, Case Gasket, Case Gaskets, Filter Gasket,Filter Gaskets
- Gasket Pan, Pan Gaskets, Pan gasket, Filter Gasket,Filter Gaskets
- manuals, Technical manual, Repair manual, service manual, Manual, VIDEO & AUDIO, tapes
- O/D,
- ohk, OHK kit, Overhauls, mok, Overhaul kit, Masterkit, Master kit, Master Overhaul, Repair package, Overhaul, Rebuild kit, Master Rebuild, Super Rebuild Bundle, Banner Kit, SUPER KIT, SUPERIOR KIT
- Pans, Crankcase, Oil Pan
- Pinions, Pinion Gear, Pinion Pin, Pinion Gear Shaft,
- Pistons, Apply Piston, Pack Piston, High Piston, Damper Piston, Piston Damper, Piston Plate, Interm. Servo Pist, Piston Seals, Piston Seal Ring, Piston Seal Rings, Piston Seal, Piston Cover, Piston Covers, Rear Servo, servo piston, Piston Retainer, Piston Retainers, Servo kit, Super Servo, servo, Shift Pison
- Piston Kits, Piston Complete, Piston part, Piston Sets, Piston Set
- Pumps, Rotor, Vane, Vanes, Kit Pump Vane/Ring
- Regulators, Main Pressure Regulator, Main Pressure Reg, Pressure Regulator, Forward Regulator, Secondary Regulator, Pressure Reg, Press Reg
- Seals, Metal clad seal, Lip Seals, Connector Hole Seal, Lip Seal, Main Seal, Radial Lip Seal, Main Seal, Manual Seal, Oil Feed Seal, Side Cover Seal, Seal Cooler, Seal Oil Cooler, Case Seal
- Pump seal
- solenoid, Shift Solenoid, Kickdown Solenoid, Control Solenoid Support, Solenoid Retainer, Interlock Solenoid, Solenoid Switch
- EPC, Pressure Solenoid, Pressure Control Solenoid, Pressure Solenoid, PWM solenoid, Pressure Regulator Solenoid
- Steel Kits, Steel Set Kit, Steel Clutch Plate Kit, Steel kit, clutch steel, clutch steels, Steel set, steel pack, module kit, Steel Plate Clutch Kit, Steel Plate Kit, Steel Plate Module, Steel Plate Set, Steel Module
- Steel Plates, steel, Steels, steel disk
- Washer, Washers, T/Washers, Thrust Washers, Selective Washers, Kit Washer, Drive Sprockets, Driven Sprockets, Drive Sprocket, Thrust Kit, Washer kit,
- converter, t.converter,
- VB plate, Valve body plates, Valve body plate, ValveBody, V/Body, valve-body, v body, v-body, v/b, Orifice, Hydraulic control unit, HCU
Technical issues and repair guidelines
Subaru vehicles with this transmission rarely come to transmission repair shops. In terms of maintenance services, this transmission is very similar to Jatco transmnissions. The 4EAT unit is a very reliable and simple system with special settings which do not allow drivers to overload prone-to-damage parts with a high degree of safety.
Overhauls usually consist of the reassembly procedure with replacement of the filter and repair kit of gaskets and seals. A kit of friction components is also commonly ordered by transmission specialists together with the abovementioned components. If the transmission operates for a long time with burnt fluid, then all steel discs get replaced with frictions. The external filter protects the valve body and solenoids from contaminated ATF, which appears because of the worn friction lining of the torque converter. Specialists recommend to replace it together with the engine oil filter on cars where the mileage parameter enxceeds 100 thousand kilometers, especially after a hot summer. The valve body unit of this transmission was updated in 1998 (type 2) and in 2001. These components are quite durable and require only timely cleaning.
If the transmission is overheated and has leakages through the pump seal of the torque converter and oil rapidly gets contaminated after the ATF, then the torque converter lock-up clutch is likely to wear out, and as a result damages the wheel hub. The torque converter is repaired and the valve body gets cleaned from the dirt, which appears from the damaged friction, and the overhaul kit is replaced. The first standard overhaul of the car with high mileage always includes replacement of pistons with frictions and a solenoid of linear pressure. The resource of this transmission is above the average and after a proper overhaul may be increased for several years.
Instruction manuals and useful links Suggest your link
| Link type | Source | Description |
|---|---|---|
| www.at-manuals.com | Manual | |
| www.at-manuals.com | Repair manual | |
| www.at-manuals.com | Scheme | |
| drive.google.com | Repair manual 4EAT |