A40D Transmission parts, repair guidelines, problems, manuals
AW 03-50, AW 03-51
Transmission general data
Number of gears | Transmission Type | Drive | Torque (Nm) | ATF (full capacity) L | ATF (change) L | ATF type |
---|---|---|---|---|---|---|
4 | AT | RWD | 230 | 6,3 | 4 | Toyota T-IV |
The legendary family of automatic transmissions А40D (А42, А43, А44, А45, A46) was developed by Aisin Warner and belongs to Toyota Group. They have been used since 1985 as a 3-speed transmission named as 03-55(А40), and since 1979 as a 4-speed transmission for RWD cars with the engine capacity from 1.6 up to 3 liters. The 4-speed gearbox has D letter in its name and an additional clutch "Overdrive" in the 4-speed in the design.This gearbox is mainly used in right-hand drive cars (Hiace, Liteace etc.) and in other Toyota RWD cars in Asia. The modification with some other valve body AW03-70 .../72 or AW371, AW372 was produced for other markets. This modification was installed on Suzuki, Mitsubishi, etc. The most popular models of this family in repair services A44DE, 46DE \F (Previa), A42DE, 43DE were updated and released in 2000. This transmission is an example of a standard structural design, which was widely used by ZF in 4HP22 and by American Ford in its A4LD. The design of almost all rear-driven gearboxes ensures uniform wear-out of all units and solid safety coefficient of gearbox components, therefore these gearboxes easily travel 500 thousand kilometers. Earlier the repair process mainly involved transmission replacement.
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
-
-
- Bearings, brg, Mainbearing
- Cover Bolt, Cover Bolts, Mounting Bolt, Mounting Bolts, Pan Bolt, Pan Bolts, stud, studs, Split Pin
- Bushings, Bush,
- Casing, casings, cases
- 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
- Flanges, Drum Flanges, Drum Flange, Flange Yokes, Flange Yoke, Flange Kit, Rear Flange Kit, Yoke, Slip Yoke, Yokes, Flange
- 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
- loom, Harnesses, Line Connector, Wiring, Cover Wiring, Cable, Signal Cable, Cable, Power Cord
- Housings
- manuals, Technical manual, Repair manual, service manual, Manual, VIDEO & AUDIO, tapes
- o-ring, o ring, 0ring, 0-ring, 0 ring, ORing, Ring, O-Rings, o-ring, O'Ring
- 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
- Pipes, Modulator Pipe, Inlet Pipe, feed Pipe, oil pipe
- Pressure Plates, Apply Plate, Backing Plate, Backing Plates, Backplate, Ret Plate, Dish Plate, Press Plate
- 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
- Seal Rings, Seal Ring, Sealing Rings, Piston Seal, S/Ring, SEALING RINGS S/Ring, Accumalator Seals
- Sleeves, SLEEE, Ground Sleeve, Overlap Control Sleeve, Seal Ring Sleeve, Repair Sleeve, Regulator Sleeve, Modulator Sleeve, Pressure Sleeve, Piston Sleeve, Pinion Repair Sleeve, Damper Sleeve, Bore Sleeve, Boost Sleeve
- solenoid, Shift Solenoid, Kickdown Solenoid, Control Solenoid Support, Solenoid Retainer, Interlock Solenoid, Solenoid Switch
- spragg, Sprags, Mechanical Diode, Sprag Assembly, Sprag Cartridge, One Way Clutches, One Way Clutch, Roller Clutches, Roller Clutch, Low/Rev Diode, Retaining Plates, Retaining Plate, Accordion Spring, OWC
- Stators
- 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
- Supports, Centre Supp Rebuilt, central support. support central
- Tool kits, Alignments, Alignment, Reamers, Reamer, Tool kit, Tool, Pressure Gauge, Clutch Aligning Tool, Clutch Removal Tool, Clutch Tool Supplement, Kit Installer, Air Test Plate, ADJUSTMENT TOOL, Thread Tap, Remover
- converter, t.converter,
Technical issues and repair guidelines
Typical issues of the А40 transmission are mainly caused by the the unit's ageing:
- Damaged torque converter lockup clutch. The damage of the lockup frequently causes heavy vibrations, resulting in the seal damage, then leading to issues with the pump liner and the pump itself.
- Worn-out friction components in Direct- Forward and Reverse packs. Old cars usually require replacement of these frictions.
- Rubber elements become hard with time and overheating causes the wear of rings, leading to pressure supply deficiency in packages and burning of friction components.
Overhauls mainly include the transmission reassembly and cleaning procedures accompanied by spare parts replacement – namely, worn-out brake blocks, frictions and gaskets with seals. All friction components are usually replaced during the overhaul of transmissions in cars with high mileage and burnt oil.The second most commonly replaced component in this transmission is the Low reverse clutch. Major repairs of hard parts mainly take place when the pump bushing (and leaking seal) gets damaged by the torque converter lockup clutch.
Instruction manuals and useful links Suggest your link
Link type | Source | Description |
---|---|---|
www.at-manuals.com | Repair manual A43D | |
www.at-manuals.com | Repair manual A46DE | |
www.at-manuals.com | Scheme A40D | |
www | www.at-manuals.com | Clutch application A40 |
mitsubishi-motors | Repair manual V4AW2-3 |