2004 SUBARU IMPREZA Engines & Components - In Stock Filter Options - Vendor In Stock Filter Options

Dorman Harmonic Balancers 594-166

Harmonic Balancer, Nodular Iron, Black, 5.240 in. o.d., Subaru, 2.5L, Each

Part Number: RNB-594-166

5.0 out of 5 stars ( 1 )

Estimated Ship Date: May 1, 2026 if ordered today

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Estimated Ship Date: May 1, 2026 if ordered today

Moroso PCV Air/Oil Separators for 2004-2007 IMPREZA - 85654

Air, Oil, Separator Tank, Aluminum, Polished, 2.125 in. Diameter, 4.5 in. Height, Ford, Kit

Part Number: MOR-85654

Not Yet Reviewed

Estimated Ship Date: May 7, 2026 if ordered today

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Estimated Ship Date: May 7, 2026 if ordered today

JE Pistons Subaru EJ Series Pistons 291061R

JE Pistons Subaru EJ Series Pistons 291061R

Piston, Forged, Dish, 4-Valve Reliefs, 3.917 in. Bore, 3.110 in. Stroke, 5.138 in. Rod, 1.209 in. Compression, Subaru, Right, Each

Part Number: JEP-291061R

Not Yet Reviewed

Estimated Ship Date: Apr 30, 2026 if ordered today

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Estimated Ship Date: Apr 30, 2026 if ordered today

JE Pistons Subaru EJ Series Pistons 291064L

Piston, Forged, Dish, 4-Valve Reliefs, 3.937 in. Bore, 3.267 in. Stroke, 5.138 in. Rod, 1.130 in. Compression, Subaru, Left, Each

Part Number: JEP-291064L

Not Yet Reviewed

Estimated Ship Date: Apr 30, 2026 if ordered today

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Estimated Ship Date: Apr 30, 2026 if ordered today

Hastings Premium Ductile Ring Sets for 2002-2005 IMPREZA - 2C5134S020

Engine Piston Ring Set, Single Cyl Ring Set; Chrome

Part Number: HSN-2C5134S020

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

Beck/Arnley Valve Cover End Plugs 039-6552

Valve Cover End Plug, Black, Rubber, Each

Part Number: BCK-039-6552

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

Enginetech Piston Ring Sets S99524-.50

Engine Piston Ring Set 04-14 SAB/SUB 2.5L

Part Number: EGN-S9952450

Not Yet Reviewed

Estimated Ship Date: May 4, 2026 if ordered today

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Estimated Ship Date: May 4, 2026 if ordered today

Holstein PCV Valves 2PCV0063

PCV VALVE

Part Number: HLN-2PCV0063

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

Hastings Premium Ductile Ring Sets for 2002-2005 IMPREZA - 2C5027020

Engine Piston Ring Set, 4-Cyl Ring Set; Chrome

Part Number: HSN-2C5027020

Not Yet Reviewed

Estimated Ship Date: Apr 28, 2026 if ordered today

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Estimated Ship Date: Apr 28, 2026 if ordered today

Hastings Premium Ductile Ring Sets for 2002-2005 IMPREZA - 2C5027040

Engine Piston Ring Set, 4-Cyl Ring Set; Chrome

Part Number: HSN-2C5027040

Not Yet Reviewed

Estimated Ship Date: Apr 28, 2026 if ordered today

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Estimated Ship Date: Apr 28, 2026 if ordered today

Standard Motor Products PCV Valves V486T

PCV Valve

Part Number: SMP-V486T

Not Yet Reviewed

Estimated Ship Date: Apr 29, 2026 if ordered today

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Estimated Ship Date: Apr 29, 2026 if ordered today

Enginetech Remanufactured Crank Kits 950700

Crankshaft, Remanufactured, Crank Kit, 3.110 in. Stroke, Internal Balance, 1-Piece Seal, Bearings included, Subaru, 2.5L, Kit

Part Number: EGN-950700

Not Yet Reviewed

Estimated Ship Date: May 5, 2026 if ordered today

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Estimated Ship Date: May 5, 2026 if ordered today

Enginetech Rod Bearings BB4280.25

Engine Connecting Rod Bearing 96-06 SAB/SUB 2.0L/2.5L

Part Number: EGN-BB428025

Not Yet Reviewed

Estimated Ship Date: May 5, 2026 if ordered today

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Estimated Ship Date: May 5, 2026 if ordered today

GMB Timing Belt Idler Pulleys 460-9020

TIMING BELT IDLER Replacement SAAB-9-2X(2005); SUBARU-BAJA, FORESTER, IMPREZA, LEGACY, OUTBACK, WRX, WRX STI (18-03)

Part Number: GMB-460-9020

Not Yet Reviewed

Estimated Ship Date: May 12, 2026 if ordered today

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Estimated Ship Date: May 12, 2026 if ordered today

Spectra Premium Oil Pans SUP02A

OIL PAN

Part Number: SGT-SUP02A

Not Yet Reviewed

Estimated Ship Date: Apr 30, 2026 if ordered today

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Estimated Ship Date: Apr 30, 2026 if ordered today

Mishimoto Hoonigan Oil Filler Caps MMOFC-SUB-HOONSL

Oil Fill Cap, Hoonigan, Round, Aluminum, Silver Anodized, Twist-in, Scion, Subaru, Each

Part Number: MIO-OFCSUBHOONSL

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

JE Pistons Pro Seal Piston Rings JG4904-3917

Piston Rings, Carbon Steel Nitride Top, Iron Phosphate Second, Low Tension Oil, File Fit for 3.917 in. Bore, Standard, 1.2mm, 1.2mm, 2.5mm, H4, Set

Part Number: JEP-JG4904-3917

Not Yet Reviewed

Estimated Ship Date: Apr 30, 2026 if ordered today

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Estimated Ship Date: Apr 30, 2026 if ordered today

JE Pistons Subaru EJ Series Pistons 291063R

Piston, Forged, Dish, 4-Valve Reliefs, 3.918 in. Bore, 3.267 in. Stroke, 5.138 in. Rod, 1.130 in. Compression, Subaru, Right, Each

Part Number: JEP-291063R

Not Yet Reviewed

Estimated Ship Date: Apr 30, 2026 if ordered today

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Estimated Ship Date: Apr 30, 2026 if ordered today

JE Pistons Subaru EJ Series Pistons 296348R

Piston, Forged, Dish, 4-Valve Reliefs, 3.927 in. Bore, 3.110 in. Stroke, 5.138 in. Rod, 1.209 in. Compression, Subaru, Right, Each

Part Number: JEP-296348R

Not Yet Reviewed

Estimated Ship Date: Apr 30, 2026 if ordered today

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Estimated Ship Date: Apr 30, 2026 if ordered today

Manley Race Master Valves for 2002-2014 IMPREZA, 2015 WRX STI - 11155-1

EXHAUST VALVE SINGLE

Part Number: MAN-11155-1

Not Yet Reviewed

Estimated Ship Date: May 27, 2026 if ordered today

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Estimated Ship Date: May 27, 2026 if ordered today

Dorman Oil Pans 264-601

Oil Pan, Wet Sump Style, Steel, Black, Subaru, Each

Part Number: RNB-264-601

Not Yet Reviewed

Estimated Ship Date: May 1, 2026 if ordered today

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Estimated Ship Date: May 1, 2026 if ordered today

ATP Automotive Harmonic Balancers 102143

ENG HARMONIC BAL

Part Number: ATP-102143

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

COBB Tuning Lightweight Crank Pulleys 300102-BK

Crankshaft Pulley, Lightweight, Serpentine, 5/4 Groove, Billet Aluminum, Black Anodized, Subaru, Each

Part Number: CBT-300102-BK

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

INA Timing Belt Idler Pulleys ZP03892

Idler, Timing, Global 5320389200, Each

Part Number: IFE-ZP03892

Not Yet Reviewed

Estimated Ship Date: May 18, 2026 if ordered today

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Estimated Ship Date: May 18, 2026 if ordered today

FAG Bearings Harmonic Balancer Repair Sleeves SR3467

Repair Sleeve Various Makes 68-12

Part Number: FWB-SR3467

Not Yet Reviewed

Estimated Ship Date: May 18, 2026 if ordered today

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Estimated Ship Date: May 18, 2026 if ordered today