Engine Internals

Price Price
Brand Brand







Camshafts Camshafts
Crankshafts Crankshafts
Engine Bearings Engine Bearings
Hardware Hardware
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 (90.17mm-93.98mm), 2002-2005 WRX
In Stock!

Company23 Piston Ring Compressor (90.17mm-93.98mm), 2002-2005 WRX

$44.95

Company23 Torque Plate (EJ20), 2002-2005 WRX
In Stock!

Company23 Torque Plate (EJ20), 2002-2005 WRX

$294.95

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

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

$294.95

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) 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) Valve Cover Washers (Set/16), 2002-2005 WRX
In Stock!

Subaru (OEM) Valve Cover Washers (Set/16), 2002-2005 WRX

$71.68

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

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

IAG Stage 4 Cylinder Heads w/ +1mm Valves, GSC S3 Cams & Combustion Chamber Mod (S20), '02-'05 WRX

IAG Stage 4 Cylinder Heads w/ +1mm Valves, GSC S3 Cams & Combustion Chamber Mod (S20), '02-'05 WRX

$6,199.99

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

IAG Long Block Basic Installation Kit, 2006-2007 WRX
Available For Order!

IAG Long Block Basic Installation Kit, 2006-2007 WRX

$1,999.99

IAG Stage 4 Cylinder Heads w/ +1mm Valves & GSC S3 Cams (D25 Casting), '06-'14 WRX
Available For Order!

IAG Stage 4 Cylinder Heads w/ +1mm Valves & GSC S3 Cams (D25 Casting), '06-'14 WRX

$6,299.99

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

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