Subaru 2004 LEGACY - Engine; Electrical System

12-3
Specifications
– CONTINUED –
 Engine
 Electrical system
*: CALIFORNIA spec models
Engine model EJ251, EJ259
(2.5 liter)
EZ30D
(3.0 liter)
Engine type Horizontally opposed, liquid cooled 4 cyl-
inder, 4 stroke gasoline engine
Horizontally opposed, liquid cooled 6 cyl-
inder, 4 stroke gasoline engine
Displacement cc (cu-in) 2,457 (150) 3,000 (183.0)
Bore × Stroke in (mm) 3.92 x 3.11
(99.5 x 79.0)
3.51 x 3.15
(89.2 x 80.0)
Compression ratio 10.0 : 1 10.7 : 1
Firing order 1 – 3 – 2 – 4 1 – 6 – 3 – 2 – 5 – 4
Battery type and capacity 2.5 liter MT 55D23L
AT 75D23L
3.0 liter 75D23L
Alternator 2.5 liter 12V-90A
3.0 liter 12V-100A
Spark plugs 2.5 liter RC10YC4 (Champion)
BKR6E-11 (NGK)
BKR5E-11 (NGK)
FR5AP-11 (NGK)*
3.0 liter PLFR6A-11 (NGK)