Engine Internals

Price Price
Brand Brand









Color Color


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
Available For Order!

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

$499.00

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) O-Ring (Oil Pick Up Tube), 2002-2014 WRX & 2004-2021 STi
In Stock!

Subaru (OEM) O-Ring (Oil Pick Up Tube), 2002-2014 WRX & 2004-2021 STi

$2.69

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

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

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

$3.01

Subaru (OEM) Oil Pickup Tube, '04-'05 STi & '05 Legacy GT/Outback XT
Available For Order!

Subaru (OEM) Oil Pickup Tube, '04-'05 STi & '05 Legacy GT/Outback XT

$41.98

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) 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

Manley H-Beam Connecting Rods (Set/4), 2002-2014 WRX & 2004-2021 STi
Available For Order!

Manley H-Beam Connecting Rods (Set/4), 2002-2014 WRX & 2004-2021 STi

$546.78

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) Crankshaft Position Sensor, 2002-2014 WRX & 2004-2021 STi
In Stock!

Subaru (OEM) Crankshaft Position Sensor, 2002-2014 WRX & 2004-2021 STi

$124.24

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

Roger Clark Motorsport 14/12mm Cylinder Head Stud Kit, '02-'14 WRX & '04-'21 STi
Available For Order!

Roger Clark Motorsport 14/12mm Cylinder Head Stud Kit, '02-'14 WRX & '04-'21 STi

$397.88

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

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) 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

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