Specifications; Engine; Electrical System - Subaru 2004 Impreza Owner's Manual

! Engine

Engine model
Engine type
Displacement cu in. (cc)
Bore × Stroke in. (mm)
Compression ratio
Firing order

! Electrical system

Battery type and MT
capacity (5HR)
AT
Alternator
Spark plugs
AT: Automatic transmission
MT: Manual transmission
EJ251(2.5-liter, SOHC, EJ205 (2.0-liter, DOHC, turbo) EJ257 (2.5-liter, DOHC, turbo)
non-turbo)
Horizontally opposed, liquid cooled 4 cylinder, 4-stroke gasoline engine
150 (2,457)
3.9 × 3.1 (99.5 × 79.0)
10.0 : 1
With 2.5-liter engine
With 2.0-liter turbo engine
2.5-liter and 2.0-liter turbo engine
2.5-liter turbo engine
2.5-liter engine
2.0-liter turbo engine
2.5-liter turbo engine
122 (1,994)
3.6 × 2.9 (92.0 × 75.0) 3.9 × 3.1 (99.5 × 79.0)
8.0 : 1
1 – 3 – 2 – 4
12V-48AH (55D23L)
12V-52AH (75D23L)
12V-52AH (65D23L)
12V – 75A
12V – 90A
RC10YC4 (Champion)
BKR6E-11 (NGK)
BKR5E-11 (NGK)
PFR6G (NGK)
IFLR6B (NGK)

Specifications

150 (2,457)
8.2 : 1
– CONTINUED –
12-3