Engine Internals

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Camshafts Camshafts
Crankshafts Crankshafts
Engine Bearings Engine Bearings
Hardware Hardware
Head Gaskets Head Gaskets
Oil Pumps, Pans & Pickups Oil Pumps, Pans & Pickups
Pistons Pistons
Rods Rods
Valvetrain Valvetrain
ACL Race Series Crankshaft Main Bearings (+0.025mm, Set), '02-'14 WRX & '04-'21 STi
In Stock!

ACL Race Series Crankshaft Main Bearings (+0.025mm, Set), '02-'14 WRX & '04-'21 STi

$80.81

ACL Race Series Rod Bearings (+0.25mm, Set), '02-'14 WRX & '04-'21 STi
Available For Order!

ACL Race Series Rod Bearings (+0.25mm, Set), '02-'14 WRX & '04-'21 STi

$43.54

Company23 Piston Ring Compressor (96.52mm-100.33mm), '04-'21 STi & '06-'14 WRX
In Stock!

Company23 Piston Ring Compressor (96.52mm-100.33mm), '04-'21 STi & '06-'14 WRX

$44.95

Company23 Torque Plate (EJ25), 2004-2021 STi & 2006-2014 WRX
In Stock!

Company23 Torque Plate (EJ25), 2004-2021 STi & 2006-2014 WRX

$294.95

Killer B Baffle Windage Tray, 2002-2014 WRX & 2004-2021 STi
In Stock!

Killer B Baffle Windage Tray, 2002-2014 WRX & 2004-2021 STi

$79.00

Killer B Oil Pan, 2002-2014 WRX & 2004-2021 STi
In Stock!

Killer B Oil Pan, 2002-2014 WRX & 2004-2021 STi

$499.00

Subaru (OEM) Cam Seal, 2.0L WRX Int. & Exh. / 2.5L Exh. Only
In Stock!

Subaru (OEM) Cam Seal, 2.0L WRX Int. & Exh. / 2.5L Exh. Only

$8.32

Subaru (OEM) Cam Seal (Intake Cam), 2004-2021 STi & 2006-2014 WRX
In Stock!

Subaru (OEM) Cam Seal (Intake Cam), 2004-2021 STi & 2006-2014 WRX

$8.12

Subaru (OEM) Crank Seal In Front Of Oil Pump, '02-'14 WRX & '04-'21 STi
In Stock!

Subaru (OEM) Crank Seal In Front Of Oil Pump, '02-'14 WRX & '04-'21 STi

$13.53

Subaru (OEM) Engine Block Case Bolt (1 Required), '02-'14 WRX & '04-'21 STi
In Stock!

Subaru (OEM) Engine Block Case Bolt (1 Required), '02-'14 WRX & '04-'21 STi

$1.44

Subaru (OEM) Engine Block Case Bolt (1 Required, Sold Each), '02-'14 WRX & '04-'21 STi
In Stock!

Subaru (OEM) Engine Block Case Bolt (1 Required, Sold Each), '02-'14 WRX & '04-'21 STi

$2.44

Subaru (OEM) Engine Block Case Bolt (8 Required, Sold Each), '02-'14 WRX & '04-'21 STi
In Stock!

Subaru (OEM) Engine Block Case Bolt (8 Required, Sold Each), '02-'14 WRX & '04-'21 STi

$4.55

Subaru (OEM) Engine Block Case Bolts (2 Req'd, Sold As Pair), '02-'14 WRX & '04-'21 STi
In Stock!

Subaru (OEM) Engine Block Case Bolts (2 Req'd, Sold As Pair), '02-'14 WRX & '04-'21 STi

$6.84

Subaru (OEM) Engine Overhaul Gasket Kit, 2008-2018 STi
Available For Order!

Subaru (OEM) Engine Overhaul Gasket Kit, 2008-2018 STi

$339.22

Subaru (OEM) Head Gasket (Each), 2006-2014 WRX & 2007-2018 STi
Available For Order!

Subaru (OEM) Head Gasket (Each), 2006-2014 WRX & 2007-2018 STi

$65.71

Subaru (OEM) Intake Manifold to TGV Gaskets (Pair), '02-'14 WRX & '04-'21 STi
In Stock!

Subaru (OEM) Intake Manifold to TGV Gaskets (Pair), '02-'14 WRX & '04-'21 STi

$26.00

Subaru (OEM) Piston Wrist Pin Circlip (Each), '02-'14 WRX & '04-'21 STi
In Stock!

Subaru (OEM) Piston Wrist Pin Circlip (Each), '02-'14 WRX & '04-'21 STi

$2.10

Subaru (OEM) Spark Plug Valve Cover Gasket (Each), '02-'14 WRX & '04-'21 STi
In Stock!

Subaru (OEM) Spark Plug Valve Cover Gasket (Each), '02-'14 WRX & '04-'21 STi

$9.95

Subaru (OEM) TGV to Head Gasket (Pair), 2002-2014 WRX & 2004-2021 STi
In Stock!

Subaru (OEM) TGV to Head Gasket (Pair), 2002-2014 WRX & 2004-2021 STi

$15.98

Subaru (OEM) Valve Cover Gaskets (Pair/2), '04-'21 STi & '06-'14 WRX
In Stock!

Subaru (OEM) Valve Cover Gaskets (Pair/2), '04-'21 STi & '06-'14 WRX

$44.76

Subaru (OEM) Water Pump Gasket, 2002-2014 WRX & 2004-2021 STi
In Stock!

Subaru (OEM) Water Pump Gasket, 2002-2014 WRX & 2004-2021 STi

$5.38

ARP Ultra-Torque Fastener Assembly Lubricant (0.5oz.)
Available For Order!

ARP Ultra-Torque Fastener Assembly Lubricant (0.5oz.)

$3.01

JE Billet Race Pistons (100.00mm, 8.8cr, Set/4), '04-'21 STi & '06-'14 WRX
Available For Order!

JE Billet Race Pistons (100.00mm, 8.8cr, Set/4), '04-'21 STi & '06-'14 WRX

$1,799.99

Subaru (OEM) Crankshaft EJ257, 2004-2021 STi & 2006-2014 WRX

Subaru (OEM) Crankshaft EJ257, 2004-2021 STi & 2006-2014 WRX

$497.56

Subaru (OEM) EJ257 Engine Block (Case Half Castings Only), '04-'18 STi & '02-'14 WRX
Available For Order!

Subaru (OEM) EJ257 Engine Block (Case Half Castings Only), '04-'18 STi & '02-'14 WRX

$2,199.85

Subaru (OEM) Water Pump & Cam Cap Bolts (Various), '02-'14 WRX & '04-'21 STi
Available For Order!

Subaru (OEM) Water Pump & Cam Cap Bolts (Various), '02-'14 WRX & '04-'21 STi

$2.55

Subaru (OEM) Cam Sprocket Bolt, '02-'05 WRX & '06-'14 WRX/'04-'07 STi (EX Only)
In Stock!

Subaru (OEM) Cam Sprocket Bolt, '02-'05 WRX & '06-'14 WRX/'04-'07 STi (EX Only)

$5.16

Subaru (OEM) Water Pump 'Z' Gasket, 2002-2014 WRX & 2004-2021 STi
In Stock!

Subaru (OEM) Water Pump 'Z' Gasket, 2002-2014 WRX & 2004-2021 STi

$6.65

IAG Piston Wrist Pin Access Cover w/ Seals Kit, '04-'21 STi & '06-'14 WRX
Available For Order!

IAG Piston Wrist Pin Access Cover w/ Seals Kit, '04-'21 STi & '06-'14 WRX

$125.99

IAG Willall Billet Case Halves, 2004-2021 STi & 2006-2014 WRX
Available For Order!

IAG Willall Billet Case Halves, 2004-2021 STi & 2006-2014 WRX

$11,549.99

IAG Competition Oil Pan w/ Removable SS Lower Baffle (Black), '02-'14 WRX & '04-'21 STi
In Stock!

IAG Competition Oil Pan w/ Removable SS Lower Baffle (Black), '02-'14 WRX & '04-'21 STi

$629.99

IAG Competition Oil Pan w/ Removable SS Lower Baffle (Silver), '02-'14 WRX & '04-'21 STi
In Stock!

IAG Competition Oil Pan w/ Removable SS Lower Baffle (Silver), '02-'14 WRX & '04-'21 STi

$524.99

Killer B Super G Cast High Performance Oil Pan, '02-'14 WRX & '04-'21 STi
In Stock!

Killer B Super G Cast High Performance Oil Pan, '02-'14 WRX & '04-'21 STi

$649.00

Subaru (OEM) Engine Block Case Bolt (6 Required, Sold Each), '02-'14 WRX & '04-'21 STi
In Stock!

Subaru (OEM) Engine Block Case Bolt (6 Required, Sold Each), '02-'14 WRX & '04-'21 STi

$2.34

Subaru (OEM) Bolt Gasket, 2008-2021 WRX/STi & 2013-2020 BRZ & FR-S
Available For Order!

Subaru (OEM) Bolt Gasket, 2008-2021 WRX/STi & 2013-2020 BRZ & FR-S

$1.62

GSC S1 Billet Camshafts (266/264), 2008-2018 STi
Available For Order!

GSC S1 Billet Camshafts (266/264), 2008-2018 STi

$1,058.68

GSC S2 Billet Camshafts (272/272), 2008-2018 STi
Available For Order!

GSC S2 Billet Camshafts (272/272), 2008-2018 STi

$1,058.68

GSC S3 Billet Camshafts (282/282), 2008-2018 STi
Available For Order!

GSC S3 Billet Camshafts (282/282), 2008-2018 STi

$1,058.68

IAG Stage X Billet Short Block, 2002-2014 WRX & 2004-2021 STi
Available For Order!

IAG Stage X Billet Short Block, 2002-2014 WRX & 2004-2021 STi

$17,599.99

Roger Clark Motorsport 13 Piece Billet Block Blanking Kit (Silver), '02-'14 WRX & '04-'21 STi
Available For Order!

Roger Clark Motorsport 13 Piece Billet Block Blanking Kit (Silver), '02-'14 WRX & '04-'21 STi

$267.15

Roger Clark 2Pc Billet Gudgeon Pin & Oil Sep. Cover Kit (Silver), '02-'14 WRX & '04-'21 STi
Available For Order!

Roger Clark 2Pc Billet Gudgeon Pin & Oil Sep. Cover Kit (Silver), '02-'14 WRX & '04-'21 STi

$172.41

Roger Clark Motorsport Billet Aluminum Oil Separator Cover Kit (Silver), '02-'14 WRX & '04-'21 STi
Available For Order!

Roger Clark Motorsport Billet Aluminum Oil Separator Cover Kit (Silver), '02-'14 WRX & '04-'21 STi

$126.00

Subaru (OEM) Engine Overhaul Gasket Kit, 2008-2018 STi
Available For Order!

Subaru (OEM) Engine Overhaul Gasket Kit, 2008-2018 STi

$339.22

Roger Clark Motorsport Seal Kit For The RCM Engine Block Case Plug Kit, '02-'14 WRX & '04-'21 STi
In Stock!

Roger Clark Motorsport Seal Kit For The RCM Engine Block Case Plug Kit, '02-'14 WRX & '04-'21 STi

$33.82

Subaru (OEM) O-Ring (Crankcase, Between Block Halves), '02-'24 WRX/STi & BRZ/FR-S/86
In Stock!

Subaru (OEM) O-Ring (Crankcase, Between Block Halves), '02-'24 WRX/STi & BRZ/FR-S/86

$5.53

Subaru (OEM) AVCS Control Valve Gasket (Exhaust, Right Hand), '08-'21 STi
In Stock!

Subaru (OEM) AVCS Control Valve Gasket (Exhaust, Right Hand), '08-'21 STi

$5.37

Subaru (OEM) Intake AVCS Solenoid Gasket, '04-'21 STi & '06-'14 WRX
In Stock!

Subaru (OEM) Intake AVCS Solenoid Gasket, '04-'21 STi & '06-'14 WRX

$3.84