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Engine Assembly Parts

Engine Assembly Parts

Photo collage of engine assembly parts

Engine Assembly Parts

Explore a wide selection of engine assembly parts from top brands like ARP, ATI, Cosworth, and Gates, available through IAG Performance. From timing belts, rollers, and tensioners to oils and fluids, we have everything you need to ensure your engine runs smoothly and reliably. Perfect for both maintenance and high-performance builds.

Gaskets & Seals

Gaskets & Seals

Subaru Exterior Body Parts & Accessories

Timing Covers

IAG Performance carries OEM and aftermarket exterior accessories for your 2002-2023 Subaru WRX, STI, Legacy GT, Forester XT, and BRZ. We have all the parts you need for your Subaru such as replacement Body Parts, Body Armor, Spoilers, Diffusors, Flares, Lighting, Detailing Supplies, Tools, and more.

Here are just a few of the brands we carry-
APR Performace, COBB, Chemical Guys, Cusco, GReddy, GrimmSpeed, Griots Garage, Hella, IAG Performance, Kartboy, LP Adventure, Perrin, Rally Armor, Spyder, Seibon, Subaru, Thule, Versus Engineering, and more.

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IAG Fire-Lock 2.5L Subaru Head Gaskets (1 Pair w/ Fire-Lock Rings) for EJ25 / EJ257, 100mm, .051", for 14mm Head Studs
Availability: Usually Ships in 24 to 72 Hours
(3)
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$329.99
0% APR or as low as $28/mo with Affirm. See if you qualify
IAG Fire-Lock 2.5L Subaru Head Gaskets (1 Pair w/ Fire-Lock Rings) for EJ25 / EJ257, 100mm, .051", for 14mm Head Studs
Out of stock
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IAG Fire-Lock 2.0L Head Gaskets (1 Pair w/ Fire-Lock Rings) Subaru EJ20, 93.5mm, .051", for 14mm Head Studs Only
Availability: Usually Ships in 24 to 72 Hours
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$329.99
0% APR or as low as $28/mo with Affirm. See if you qualify
IAG Fire-Lock 2.0L Head Gaskets (1 Pair w/ Fire-Lock Rings) Subaru EJ20, 93.5mm, .051", for 14mm Head Studs Only
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IAG Fire-Lock 2.4L FA24 Head Gaskets (1 Pair w/ Fire-Lock Rings) For 14mm Head Studs Only
Availability: Usually Ships in 24 to 72 Hours
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$329.99
0% APR or as low as $28/mo with Affirm. See if you qualify
IAG Fire-Lock 2.4L FA24 Head Gaskets (1 Pair w/ Fire-Lock Rings) For 14mm Head Studs Only
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IAG Performance ARP 1/2" Head Stud Set for Subaru EJ25, FA20, and FA20 DIT
Availability: Usually Ships in 24 to 72 Hours
(1)
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$549.99
0% APR or as low as $46/mo with Affirm. See if you qualify
IAG Performance ARP 1/2" Head Stud Set for Subaru EJ25, FA20, and FA20 DIT
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IAG Performance / ARP 14mm Head Stud Set For Subaru WRX, STI, Legacy GT, Forester XT
Availability: Usually Ships in 24 to 72 Hours
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$599.99
0% APR or as low as $50/mo with Affirm. See if you qualify
IAG Performance / ARP 14mm Head Stud Set For Subaru WRX, STI, Legacy GT, Forester XT
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IAG Subaru EJ20 / EJ25 OEM Engine Case Bolt Set
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$64.99
0% APR or as low as $11/mo with Affirm. See if you qualify
IAG Subaru EJ20 / EJ25 OEM Engine Case Bolt Set
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IAG Wrist Pin / Cover Seal Kit for Subaru EJ25 Short Blocks
Availability: Usually Ships in 24 to 72 Hours
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$149.99
0% APR or as low as $13/mo with Affirm. See if you qualify
IAG Wrist Pin / Cover Seal Kit for Subaru EJ25 Short Blocks
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IAG Short Block Plug & Rear Main Seal Kit for Subaru 2015-21 WRX FA20 DIT
Availability: Usually Ships in 24 to 72 Hours
(1)
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$59.99
0% APR or as low as $10/mo with Affirm. See if you qualify
IAG Short Block Plug & Rear Main Seal Kit for Subaru 2015-21 WRX FA20 DIT
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IAG Short Block Subaru BRZ FA20 Plug & Rear Main Seal Kit
Availability: Usually Ships in 24 to 72 Hours
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$59.99
0% APR or as low as $10/mo with Affirm. See if you qualify
IAG Short Block Subaru BRZ FA20 Plug & Rear Main Seal Kit
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IAG Performance 14mm Head Stud Dowel (Sold Individually)
Availability: Usually Ships in 24 to 72 Hours
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$14.99
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IAG Performance 14mm Head Stud Dowel (Sold Individually)
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IAG Threaded Plugs for FA Cylinder Heads (Set of 8)
Availability: Usually Ships in 24 to 72 Hours
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$129.99
0% APR or as low as $11/mo with Affirm. See if you qualify
IAG Threaded Plugs for FA Cylinder Heads (Set of 8)
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IAG Timed Long Block Component Packages For Subaru WRX, STI, LGT, FXT
Availability: Usually Ships in 5 to 7 Days
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$2,999.99
0% APR or as low as $250/mo with Affirm. See if you qualify
IAG Timed Long Block Component Packages For Subaru WRX, STI, LGT, FXT
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IAG Timed Long Block Install Kits For Subaru EJ25 Engines
Availability: Usually Ships in 5 to 7 Days
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$1,349.99
0% APR or as low as $113/mo with Affirm. See if you qualify
IAG Timed Long Block Install Kits For Subaru EJ25 Engines
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IAG Long Block Basic Installation Kit for EJ25 WRX, STI, FXT, LGT
Availability: Usually Ships in 24 to 72 Hours
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$2,249.99
0% APR or as low as $188/mo with Affirm. See if you qualify
IAG Long Block Basic Installation Kit for EJ25 WRX, STI, FXT, LGT
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IAG Long Block Basic Installation Kit for 2015-21 WRX FA20F DIT
Availability: Usually Ships in 24 to 72 Hours
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$1,349.99
0% APR or as low as $113/mo with Affirm. See if you qualify
IAG Long Block Basic Installation Kit for 2015-21 WRX FA20F DIT
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IAG Timing Belt Kit with IAG Red Racing Belt, Timing Guide, Idlers & Tensioner for 02-14 WRX, 04-21 STI, 05-12 LGT, 04-13 FXT
Availability: Usually Ships in 24 to 72 Hours
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$599.99
0% APR or as low as $50/mo with Affirm. See if you qualify
IAG Timing Belt Kit with IAG Red Racing Belt, Timing Guide, Idlers & Tensioner for 02-14 WRX, 04-21 STI, 05-12 LGT, 04-13 FXT
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IAG Timing Belt Kit with IAG Black Racing Belt, Timing Guide, Idlers & Tensioner for 02-14 WRX, 04-21 STI, 05-12 LGT, 04-13 FXT
Availability: Usually Ships in 24 to 72 Hours
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$599.99
0% APR or as low as $50/mo with Affirm. See if you qualify
IAG Timing Belt Kit with IAG Black Racing Belt, Timing Guide, Idlers & Tensioner for 02-14 WRX, 04-21 STI, 05-12 LGT, 04-13 FXT
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IAG Timing Belt Kit with IAG Black Racing Belt, Timing Guide, Adjustable Idlers & Tensioner for 02-14 WRX, 04-21 STI
Availability: Usually Ships in 24 to 72 Hours
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$699.99
0% APR or as low as $59/mo with Affirm. See if you qualify
IAG Timing Belt Kit with IAG Black Racing Belt, Timing Guide, Adjustable Idlers & Tensioner for 02-14 WRX, 04-21 STI
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IAG Timing Belt Kit with IAG Red Racing Belt, Timing Guide, Adjustable Idlers & Tensioner for 02-14 WRX, 04-21 STI, 05-12 LGT, 04-13 FXT
Availability: Usually Ships in 24 to 72 Hours
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$699.99
0% APR or as low as $59/mo with Affirm. See if you qualify
IAG Timing Belt Kit with IAG Red Racing Belt, Timing Guide, Adjustable Idlers & Tensioner for 02-14 WRX, 04-21 STI, 05-12 LGT, 04-13 FXT
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IAG Timing Guide, Comp Tensioner & Black Racing Timing Belt Kit for 02-14 WRX, 04-21 STI, 04-13 FXT, 05-12 LGT
Availability: Usually Ships in 24 to 72 Hours
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$899.99
0% APR or as low as $75/mo with Affirm. See if you qualify
IAG Timing Guide, Comp Tensioner & Black Racing Timing Belt Kit for 02-14 WRX, 04-21 STI, 04-13 FXT, 05-12 LGT
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IAG Timing Guide, Comp Tensioner & Red Racing Timing Belt Kit for 02-14 WRX, 04-21 STI, 04-13 FXT, 05-12 LGT
Availability: Usually Ships in 24 to 72 Hours
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$899.99
0% APR or as low as $75/mo with Affirm. See if you qualify
IAG Timing Guide, Comp Tensioner & Red Racing Timing Belt Kit for 02-14 WRX, 04-21 STI, 04-13 FXT, 05-12 LGT
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IAG Black Racing Timing Belt for 2002-14 Subaru WRX, 04-21 STI, 04-13 FXT, 05-12 LGT
Availability: Usually Ships in 24 to 72 Hours
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$229.99
0% APR or as low as $20/mo with Affirm. See if you qualify
IAG Black Racing Timing Belt for 2002-14 Subaru WRX, 04-21 STI, 04-13 FXT, 05-12 LGT
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IAG Red Racing Timing Belt for 2002-14 Subaru WRX, 04-21 STI, 04-13 FXT, 05-12 LGT
Availability: Usually Ships in 24 to 72 Hours
(1)
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$229.99
0% APR or as low as $20/mo with Affirm. See if you qualify
IAG Red Racing Timing Belt for 2002-14 Subaru WRX, 04-21 STI, 04-13 FXT, 05-12 LGT
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IAG V2 Timing Belt Guide for 2002-14 Subaru WRX, 04-21 STI, 05-09 LGT & 04-08 FXT (Black Finish)
Availability: Usually Ships in 24 to 72 Hours
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$59.99
0% APR or as low as $10/mo with Affirm. See if you qualify
IAG V2 Timing Belt Guide for 2002-14 Subaru WRX, 04-21 STI, 05-09 LGT & 04-08 FXT (Black Finish)
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IAG Performance Adjustable Timing Idler Kit for EJ20/EJ25 Subaru WRX, STI, LGT, FXT
Availability: Usually Ships in 24 to 72 Hours
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$199.99
0% APR or as low as $17/mo with Affirm. See if you qualify
IAG Performance Adjustable Timing Idler Kit for EJ20/EJ25 Subaru WRX, STI, LGT, FXT
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IAG Performance V2 Competition Series EJ Timing Belt Tensioner
Availability: Usually Ships in 24 to 72 Hours
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$589.99
0% APR or as low as $50/mo with Affirm. See if you qualify
IAG Performance V2 Competition Series EJ Timing Belt Tensioner
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IAG 105K Service Package w/ AISIN Water Pump Fits 2008-21 Subaru STI
Availability: Usually Ships in 24 to 72 Hours
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$769.99
0% APR or as low as $65/mo with Affirm. See if you qualify
IAG 105K Service Package w/ AISIN Water Pump Fits 2008-21 Subaru STI
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IAG 105K Service Package w/ AISIN Water Pump Fits 2004-07 Subaru STI
Availability: Usually Ships in 24 to 72 Hours
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$769.99
0% APR or as low as $65/mo with Affirm. See if you qualify
IAG 105K Service Package w/ AISIN Water Pump Fits 2004-07 Subaru STI
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IAG 105K Service Package w/ AISIN Water Pump Fits 2008-14 Subaru WRX
Availability: Usually Ships in 24 to 72 Hours
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$769.99
0% APR or as low as $65/mo with Affirm. See if you qualify
IAG 105K Service Package w/ AISIN Water Pump Fits 2008-14 Subaru WRX
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IAG 105K Service Package w/ AISIN Water Pump Fits 2006-07 Subaru WRX
Availability: Usually Ships in 24 to 72 Hours
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$769.99
0% APR or as low as $65/mo with Affirm. See if you qualify
IAG 105K Service Package w/ AISIN Water Pump Fits 2006-07 Subaru WRX
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IAG 105K Service Package w/ AISIN Water Pump Fits 2003-05 Subaru WRX
Availability: Usually Ships in 24 to 72 Hours
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$749.99
0% APR or as low as $63/mo with Affirm. See if you qualify
IAG 105K Service Package w/ AISIN Water Pump Fits 2003-05 Subaru WRX
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IAG 105K Service Package w/ AISIN Water Pump Fits 2002 Subaru WRX
Availability: Usually Ships in 24 to 72 Hours
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$749.99
0% APR or as low as $63/mo with Affirm. See if you qualify
IAG 105K Service Package w/ AISIN Water Pump Fits 2002 Subaru WRX
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IAG 105K Service Package w/ AISIN Water Pump Fits 2005-09 Subaru Legacy GT
Availability: Usually Ships in 24 to 72 Hours
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$769.99
0% APR or as low as $65/mo with Affirm. See if you qualify
IAG 105K Service Package w/ AISIN Water Pump Fits 2005-09 Subaru Legacy GT
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IAG Half Moon Valve Cover Cam Seals (4) For 2002-06 Subaru WRX / STI / FXT / LGT (Black Finish)
Availability: Usually Ships in 24 to 72 Hours
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$65.99
0% APR or as low as $11/mo with Affirm. See if you qualify
IAG Half Moon Valve Cover Cam Seals (4) For 2002-06 Subaru WRX / STI / FXT / LGT (Black Finish)
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IAG Half Moon Valve Cover Cam Seals (4) For 2002-06 Subaru WRX / STI / FXT / LGT (Silver Finish)
Availability: Usually Ships in 24 to 72 Hours
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$65.99
0% APR or as low as $11/mo with Affirm. See if you qualify
IAG Half Moon Valve Cover Cam Seals (4) For 2002-06 Subaru WRX / STI / FXT / LGT (Silver Finish)
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IAG Black AVCS Camshaft Sensor Plugs (Pair) For 2002-05 Subaru WRX w/ USDM AVCS Heads
Availability: Usually Ships in 24 to 72 Hours
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$69.99
0% APR or as low as $12/mo with Affirm. See if you qualify
IAG Black AVCS Camshaft Sensor Plugs (Pair) For 2002-05 Subaru WRX w/ USDM AVCS Heads
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