Subaru Justy EF12 Parts:

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Subaru EF12 Engine              Subaru EF12 Shortblock

The Subaru Justy features a unique inline three cylinder based off of the Suzuki G10 engine.  Subaru took Suzuki's design and refined it, making their own 1.0L and 1.2L versions, the EF10 and the EF12.  The EF12 is what all US-Model Justys are equipped with.  Introduced in 1987, this belt driven SOHC 3cyl with iron block, aluminum head, chain driven balance shaft, and three valves per cylinder was made to compete in the sub-compact class, where other cars had four cylinders.  The EF12 was highly competitive, and in 1990 optional multi-port fuel injection appeared boasting 1HP per cubic inch!  The EF12-E replaced the EF12 in 1991, (which was the last carbureted car sold in the US).  The EF12-E was the only engine used until 1994 when Subaru pulled the plug on the Justy and the EF engine.

Engine Bore Stroke Displacement Compression Horsepower Torque Fuel System
EF10 78mm (3.07") 69.6mm (2.74") 998cc (61cid) 9.5:1 47@5000rpm 59@3200rpm 1bbl Hitachi
EF12 78mm (3.07") 83mm (3.27") 1189cc (73cid) 9.0:1 66@5200rpm 70@3600rpm 2bbl Hitachi
EF12-E 78mm (3.07") 83mm (3.27") 1189cc (73cid) 9.1:1 73@5600rpm 71@3600rpm Multi-Port FI

Click for: Service Information, Diagrams, Specifications, Capacities, Torque Specs

 

Air Filter for Carb - DJAF1  $9

Air Filter for FI - DJAF2  $19

PCV Valve for All - DJPCV  $4

 

Belts

OEM Alternator Belt for 1987-1988 - DJAB1 $18

OEM Alternator Belt for 1989-1994 - DJAB2 $18

OEM A/C Belt for 1987-1988 - DJCB1  NO LONGER AVAILABLE

OEM A/C Belt for 1989-1990 Hitachi - DJCB2 NO LONGER AVAILABLE

OEM A/C Belt for 1990-1994 Wynns - DJCB3 $19

OEM Timing Belt - DJTB1  $49

Aftermarket Timing Belt - DJTB4  $36

Aftermarket Timing Belt - DJTB5  $15

OEM Timing Belt Tensioner - DJTB2  $49

Aftermarket Timing Belt Tensioner - DJTB3  $49

Aftermarket Timing Belt Tensioner - DJTB6  $26

 

Cooling System

OEM Radiator Cap - DJRC1  $15

Temperature Switch, Carb - DJWTS $55

Thermostat, 170 - DJT1  $6

Thermostat, 180 - DJT2  $12

Thermostat, 192 - DJT3  $15

Thermostat Gasket - DJT4  $2

OEM Water Pump Rebuild Kit (Best) - DJWPKIT1 $42

Aftermarket Water Pump Rebuild Kit (Fair) - DJSPKIT2 $39

Beck Water Pump Rebuild Kit (Good) - DJSPKIT3 $39

Water Pump Gasket - DJWPG2  $3

 

Fuel System

*Carburetor Rebuild Kit 1987-1988 - DJCK1 $16*

*Carburetor Rebuild Kit for 1989-1992 - DJCK2  $18*

*Subaru has never offered what would be considered to old school mechanics as a complete carburetor kit.  What Subaru calls a 'Carburetor Rebuild Kit' consists of gaskets, seals, and copper washers: basically enough to take apart the carb, clean it, and put it back together.  This is usually sufficient but all other parts (needle, seat, etc) must be ordered seperately!*

OEM Fuel Cap for all models - DJFC1 $22

OEM Fuel Pump for 1987-1988 - DJFP1 $87

OEM Fuel Pump for 1989-1992 carb - DJFP2 $51

OEM Fuel Pump for all EFI - DJFP3 $329

Aftermarket Fuel Pump for 1987-1988 - DJFP8 $59

Aftermarket Fuel Pump for all EFI - DJFP9 $149

Bosch Fuel Pump for 1987-1988 - DJFP4 $62

Bosch Fuel Pump for 1989-1992 carb - DJFP5 $199

Bosch Fuel Pump for all EFI - DJFP6 $164

Beck Fuel Pump for EFI - DJFP7  $205

Carter Fuel Pump for 1987-1988 (Universal) - DJFP10  $55

Carter Fuel Pump for 1989-1992 carb - DJFP11  $169

Carter Fuel Pump for EFI - DJFP12  $119

Beck Fuel Filter for Carb - DJFF1  $6

Beck Fuel Filter for EFI - DJFF2  $12

Bosch Fuel Filter for EFI - DJFF3  $29

Bosch Oxygen Sensor for 1987 - DJO2S1 $60

Bosch Oxygen Sensor for 1988 - DJO2S2 $69

Bosch Oxygen Sensor for 1989-1994 - DJO2S3 $165

Throttle Position Switch for EFI - DJTPS  $95

 

Gasket Sets

OEM Subaru Gasket Set for 1987-1988 - 132013 $242

OEM Subaru Gasket Set for 1989-1992 Carb - 132014  $199

OEM Subaru Gasket Set for 1989-1994 EFI - 132015  $219

Intake Gasket for all Carb - DJIG1  $8

Intake Gasket for all Carb - DJIG3  $9

Intake Gasket for all EFI - DJIG2  $8

Intake Gasket for all EFI - DJIG4  $12

CamSeal - DJCSS1  $5

Aftermarket CamSeal - DJCSS2  $4

Exhaust Manifold Gasket, Carb  - DJEXG2  $49

Exhaust Manifold Gasket, EFI  - DJEXG3  $49

Aftermarket Head Gasket Set - DJHGS2 $249

Beck Head Gasket Set for Carb - DJHGS $139

Beck Head Gasket Only - DJHG  $65

Head Gasket Only, Aftermarket - DJHG2  $45

 Rear Crank Seal - DJRCS  $12

 Rear Crank Seal - DJRCS2  $5

 Valve Cover Gasket - DJVCG2  $19

Exhaust Valve Stem Seal - DJEVS  $3/ea

Exhaust Valve Stem Seal - DJEVS2  $4/ea

Intake Valve Stem Seal - DJIVS  $5/ea

Intake Valve Stem Seal - DJIVS2  $4/ea

Timing Cover Seal - DJTCS2  $4

For Fel-Pro Gaskets Contact Us for pricing!!!

 

Ignition

OEM Spark Plug (NGK) - 3SP1  $10/set

Denso Copper Plug - 3SP4  $15/set

Denso Platinum Plug - 3SP5  $20/set

Denso Iridium  Plug - 3SP6 $27/set

Bosch Iridium Plug - 3SP7 $33/set

High-Power NGK Iridium IX Plug - 3SP2 $25/set

High-Power NGK Iridium IX Plug for Turbos- 3SP3  $25/set

NGK 8mm Plug Wire Set (Blue) for Carb- DJSPW1  $25

NGK 8mm Plug Wire Set (Blue) for FI- DJSPW6  NO LONGER AVAILABLE

Bosch 7mm Plug Wire Set (Black) - DJSPW2 $24

Bosch 8mm Plug Wire Set (Red) - DJSPW3 $24

Beck Plug Wire Set, Carb (Color Varies) - DJSPW4 $22

Beck Plug Wire Set, EFI (Color Varies) - DJSPW5 $25

 

Distributors & Components

Reman. Distributor for 87-88 - DJDIST6  $205

Reman. Distributor for G2 Carb - DJDIST7  $249

Reman. Distributor for G2 EFI - DJDIST8  $255

Reman. Distributor for 87-88 - DJDIST4  $119 Comes w/o Module

New Distributor for All EFI Models - DJDIST5  $365

OEM Distributor Cap for Carb - DJDC1 $29

OEM Distributor Cap for EFI - DJDC2 $25

Beck Distributor Cap for Carb - DJDC5 $14

Beck Distributor Cap for EFI - DJDC6 $15

Bosch Distributor Cap for Carb - DJDC3 $17

Bosch Distributor Cap for EFI - DJDC4 $17

Beck Distributor Rotor for Carb - DJDR3 $6

Bosch Distributor Rotor for Carb - DJDR1 $7

Bosch Distributor Rotor for EFI - DJDR2 $4

Distributor Seal for Carb - DJDISTO1 $9

Distributor Seal for EFI - DJDISTO2 $8

 

  Justy Ignition Parts: Coil & Ignitor

Coil, 1987-1988 Beck - DJIA6  NO LONGER AVAILABLE

Coil, 1987-1988 Bosch - DJIA5  $79

Coil, 1987-1988 OEM - DJIA1  $99

Coil & Ignitor 1989-1992 Carb (Pictured) - DJIA2  $125

Coil & Ignitor 1990-1994 EFI - DJIA3  $299

Ignitor Only, EFI - DJIA4 $279

 

Lubrication & Front Cover Pieces

New OEM Front Cover Assy, 87-88 - DJFCK1  $439

New OEM Front Cover Assy, 89-94 -DJFCK2  $489

Oil Drain Plug - DJODP  $4

OEM Oil Filter - DJOF1  $9

Bosch Oil Filter - DJOF3  $8

Fram Oil Filter - DJOF2  $5

OEM Oil Cap for 1987-1988 - DJOC1  $11

OEM Oil Cap for 1989 - DJOC2  $8

OEM Oil Cap for 1990+ - DJOC3  $9

Aftermarket Oil Cap for 1990+ - DJOC4  $12

Oil Pressure Switch - DJOPSW  $8

New OEM Oil Pump - DJOPK  $49

Oil Pump Seal - DJOPS  $5

Balance Shaft Seal - DJBSS5  $2

OEM Balance Shaft Chain w/ Gold Links - DJBSC1 $90

Aftermarket Balance Shaft Chain w/o Gold Links - DJBSC2  $59

Aftermarket Balance Shaft Chain w/o Gold Links - DJBSC3  NO LONGER AVAILABLE

OEM Balance Shaft Chain Guide, White T=6.5mm- DJBSG1  $102

Aftermarket Balance Shaft Chain Guide, White T=6.5mm- DJBSG3  NO LONGER AVAILABLE

OEM Balance Shaft Chain Guide, Blue T=7.5mm - DJBSG2 $102

OEM Chain Sprocket, Balancer - DJBSS1  $35

Aftermarket Chain Sprocket, Balancer - DJBSS4  $58

OEM Chain Sprocket, Crank- DJBSS2  $35

OEM Chain Sprocket, Oil Pump - DJBSS3  $72

 

Pistons, Rings, & Bearings

  

Aftermarket Main Bearing Set, STD - DJEBS5  $65

Rod Bearing Set, STD - DJRBS1  EMAIL FOR AVAILABILITY

Aftermarket Rod Bearing Set, STD - DJEBS6  EMAIL FOR AVAILABILITY

Rod Bearing Set, 0.010 - DJRBS2 EMAIL FOR AVAILABILITY

OEM Balance Shaft Bearing Set - DJEBS3 $19

Aftermarket Balance Shaft Bearing Set - DJEBS4 $53

OEM Piston Ring Set, 87-88 STD - DJPRS1 EMAIL FOR AVAILABILITY

OEM Piston Ring Set, 87-88 0.5mm - DJPRS2 $139

OEM Piston Ring Set, 87-88 1.0mm - DJPRS3 $129

OEM Piston Ring Set, 89+ STD - DJPRS4 $185

OEM Piston Ring Set, 89+ 0.5mm - DJPRS5  EMAIL FOR AVAILABILITY

OEM Piston Ring Set, 89+ 1.0mm - DJPRS6 $115

Aftermarket Piston Ring Set, STD - DJPRS7 $99

Piston Sets include 3 OEM Subaru Cast Pistons, 3 Pins, & 6 Circlips (89+ Only): PISTON RING SETS ARE SOLD SEPARATELY!

Piston Set, 87-88 STD - DJPS1 $145

Piston Set, 87-88 0.5mm - DJPS2 $145

Piston Set, 87-88 1.0mm - DJPS3  NO LONGER AVAILABLE

Piston Set, 89+ STD - DJPS4 $145

Piston Set, 89+ 0.5mm - DJPS5 $145

Piston Set, 89+ 1.0mm - DJPS6 $145

Custom Forged Pistons Available- Any size STD-1.0mm, Any Compression 8:1-10.25:1 Pricing starts at $500 & includes Pins, Rings, & Clips!

 

Alternators & Starters

New Bosch Alternator for GEN1 -DJALT1  $159 plus $87 Refundable Core Charge

New Bosch Alternator for GEN2 -DJALT2  CONTACT US

New OEM Subaru Starter for all MT - DJOES1 $359

New OEM Subaru Starter for all ECVT - DJOES2 $359

Reman. Beck Starter for all ECVT - DJOES6 $145

Reman. Beck Starter for all MT - DJOES7 $139

Reman. Bosch Starter for all MT (Bosch) - DJOES3 $189 plus $26 Refundable Core Charge

Reman. Bosch Starter for all ECVT (Mitsubishi) - DJOES5  $225 plus $26 Refundable Core Charge

Starter Relay (Under Dash LH side) -DJSR1  $33

 

Cylinder Head Parts

New OEM Cylinder Head Bolt Set - DJCHB  $25

Aftermarket Intake Valve - DJIV2  $19

Aftermarket Exhaust Valve - DJEV2  $23

Aftermarket Exhaust Valve -DJEV  $8/ea

Exhaust Valve Stem Seal - DJEVS  $3/ea

Exhaust Valve Stem Seal - DJEVS2  $4/ea

Intake Valve Stem Seal - DJIVS  $5/ea

Intake Valve Stem Seal - DJIVS2  $4/ea

Head Gasket Only, Beck - DJHG  $65

Head Gasket Only, Aftermarket - DJHG2  $33

 

Want to Build your own engine?  That's Cool too:

New OEM Cylinder Block, GEN1 - EF121 $975

New OEM Cylinder Block, GEN2 - EF122  $1285