Engine Internals

Crankshafts Crankshafts
Engine Bearings Engine Bearings
Gaskets Gaskets
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-'20 STi
In Stock!

ACL Race Series Crankshaft Main Bearings (+0.025mm, Set), '02-'14 WRX & '04-'20 STi

$49.92

ACL Race Series Main Bearings (Standard Size, Set), '02-'14 WRX & '04-'20 STi
In Stock!

ACL Race Series Main Bearings (Standard Size, Set), '02-'14 WRX & '04-'20 STi

$49.92

ACL Race Series Main Bearings (Std w/ Extra Clear, Set), '02-'14 WRX & '04-'20 STi
In Stock!

ACL Race Series Main Bearings (Std w/ Extra Clear, Set), '02-'14 WRX & '04-'20 STi

$49.92

ACL Race Series Rod Bearings (+0.25mm, Set), '02-'14 WRX & '04-'20 STi
In Stock!

ACL Race Series Rod Bearings (+0.25mm, Set), '02-'14 WRX & '04-'20 STi

$35.38

ACL Race Series Rod Bearings (Std Size, Extra Oil Clear), '02-'14 WRX & '04-'20 STi
In Stock!

ACL Race Series Rod Bearings (Std Size, Extra Oil Clear), '02-'14 WRX & '04-'20 STi

$35.38

ACL Race Series Rod Bearings (Std Size, Set), '02-'14 WRX & '04-'20 STi
In Stock!

ACL Race Series Rod Bearings (Std Size, Set), '02-'14 WRX & '04-'20 STi

$35.38

ARP Head Studs, 2002-2014 WRX & 2004-2019 STi
In Stock!

ARP Head Studs, 2002-2014 WRX & 2004-2019 STi

$206.40

Company23 Piston Ring Compressor (96.52mm-100.33mm), '04-'20 STi & '06-'14 WRX
In Stock!

Company23 Piston Ring Compressor (96.52mm-100.33mm), '04-'20 STi & '06-'14 WRX

$40.46

Company23 Torque Plate (EJ25), 2004-2020 STi & 2006-2014 WRX
In Stock!

Company23 Torque Plate (EJ25), 2004-2020 STi & 2006-2014 WRX

$265.46

Killer B Baffle Windage Tray, 2002-2014 WRX & 2004-2019 STi
In Stock!

Killer B Baffle Windage Tray, 2002-2014 WRX & 2004-2019 STi

$79.00

Killer B Oil Pan, 2002-2014 WRX & 2004-2019 STi
In Stock!

Killer B Oil Pan, 2002-2014 WRX & 2004-2019 STi

$513.00

Killer B Ultimate Oil Pick Up, 2004-2019 STi & 2006-2014 WRX
In Stock!

Killer B Ultimate Oil Pick Up, 2004-2019 STi & 2006-2014 WRX

$179.00

Manley H-Beam Connecting Rods (Set/4), 2002-2014 WRX & 2004-2019 STi
In Stock!

Manley H-Beam Connecting Rods (Set/4), 2002-2014 WRX & 2004-2019 STi

$393.19

Subaru (OEM) Engine Block Case Bolt (1 Required), '04-'14 WRX & '04-'19 STi
In Stock!

Subaru (OEM) Engine Block Case Bolt (1 Required), '04-'14 WRX & '04-'19 STi

$1.26

Subaru (OEM) Engine Block Case Bolt (1 Required, Sold Each), '04-'14 WRX & '04-'19 STi
In Stock!

Subaru (OEM) Engine Block Case Bolt (1 Required, Sold Each), '04-'14 WRX & '04-'19 STi

$1.98

Subaru (OEM) Engine Block Case Bolt (6 Required, Sold Each), '02-'14 WRX & '04-'19 STi
In Stock!

Subaru (OEM) Engine Block Case Bolt (6 Required, Sold Each), '02-'14 WRX & '04-'19 STi

$2.51

Subaru (OEM) Engine Block Case Bolt (8 Required, Sold Each), '02-'14 WRX & '04-'19 STi
In Stock!

Subaru (OEM) Engine Block Case Bolt (8 Required, Sold Each), '02-'14 WRX & '04-'19 STi

$3.87

Subaru (OEM) Engine Block Case Bolts (2 Req'd, Sold As Pair), '02-'14 WRX & '04-'19 STi
In Stock!

Subaru (OEM) Engine Block Case Bolts (2 Req'd, Sold As Pair), '02-'14 WRX & '04-'19 STi

$5.88

Subaru (OEM) Intake AVCS Solenoid Gasket, '04-'19 STi & '06-'14 WRX
In Stock!

Subaru (OEM) Intake AVCS Solenoid Gasket, '04-'19 STi & '06-'14 WRX

$3.26

Subaru (OEM) O-Ring (Oil Pick Up Tube), 2002-2014 WRX & 2004-2019 STi
In Stock!

Subaru (OEM) O-Ring (Oil Pick Up Tube), 2002-2014 WRX & 2004-2019 STi

$2.24

Subaru (OEM) Piston Wrist Pin Circlip (Each), '02-'14 WRX & '04-'19 STi
In Stock!

Subaru (OEM) Piston Wrist Pin Circlip (Each), '02-'14 WRX & '04-'19 STi

$1.95

ACL Race Series Main Bearings (+0.25mm Over Size, Set), '02-'14 WRX & '04-'20 STi
Available For Order!

ACL Race Series Main Bearings (+0.25mm Over Size, Set), '02-'14 WRX & '04-'20 STi

$49.92

ACL Race Series Main Bearings (+0.50, Set), '02-'14 WRX & '04-'20 STi
Available For Order!

ACL Race Series Main Bearings (+0.50, Set), '02-'14 WRX & '04-'20 STi

$49.92

ACL Standard Series Main Bearings (Standard Size, Set), '02-'14 WRX & '04-'20 STi
Available For Order!

ACL Standard Series Main Bearings (Standard Size, Set), '02-'14 WRX & '04-'20 STi

$29.94

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

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

$2.75

Cosworth Air Pump Delete Plates w/ Hardware, '06-'08 WRX & '07-'08 STi - SAVE 5%!
In Stock!

Cosworth Air Pump Delete Plates w/ Hardware, '06-'08 WRX & '07-'08 STi - SAVE 5%!

$86.00

Killer B Relocated Oil Filler Tube, 2002-2005 WRX & 2004-2005 STi
In Stock!

Killer B Relocated Oil Filler Tube, 2002-2005 WRX & 2004-2005 STi

$181.00

Subaru (OEM) Bolt Gasket, 2008-2018 WRX & STi & 2013-2017 BRZ & FR-S
Available For Order!

Subaru (OEM) Bolt Gasket, 2008-2018 WRX & STi & 2013-2017 BRZ & FR-S

$1.38

Subaru (OEM) Crankshaft Position Sensor, 2002-2014 WRX & 2004-2019 STi
Available For Order!

Subaru (OEM) Crankshaft Position Sensor, 2002-2014 WRX & 2004-2019 STi

$105.13

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

$33.68

Subaru (OEM) Water Pump & Cam Cap Bolts (Various), '02-'14 WRX & '04-'19 STi
Available For Order!

Subaru (OEM) Water Pump & Cam Cap Bolts (Various), '02-'14 WRX & '04-'19 STi

$2.17

Tomei Head Studs (Set), 2002-2014 WRX & 2004-2019 STi
Available For Order!

Tomei Head Studs (Set), 2002-2014 WRX & 2004-2019 STi

$468.00

Subaru (OEM) O-Ring (Crankcase, Between Block Halves), '02-'19 WRX/STi & BRZ/FR-S/86
In Stock!

Subaru (OEM) O-Ring (Crankcase, Between Block Halves), '02-'19 WRX/STi & BRZ/FR-S/86

$4.59