2003 Subaru WRX Replacement Engine Parts

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    • (0 reviews)
      # mpn511613
      Subaru WRX Right Head Cast # RH S20 Block Cast # EJ20, 20L/S20CL, 20R/S20CR Left Head Cast # LH S20 2003, Remanufactured Engine Long Block by Replace®. If your engine is worn out, don’t just get a rebuilt engine, get one that’s...
      Designed to be better than newReverse engineered to ensure any factory defects are eliminated
      $4,555.32
    • (0 reviews)
      # mpn723654
      Subaru WRX / WRX STI with Interference Engine Application 2003, Timing Belt by Continental® ContiTech™. Location: Camshaft. This product is designed and manufactured as an OEM replacement for safe, reliable and efficient...
      OE quality product for safe, reliable, and efficient performancePolychloroprene cover, glass fiber tension members, and polyamide fabric for reliable and long-lasting service life
      $55.30
    • (0 reviews)
      # mpn2262748
      Subaru WRX / WRX STI 2003, Engine Oil Pan by Dorman®. Without Gasket. With Oil Drain Plug. Many Dorman Oil Pans include a drain plug and drain plug gasket. The engine oil pan gasket is sold separately. Since this part is a direct...
      Stamped steel or cast aluminum construction ensures long lasting durabilityHigh strength coating prevents rust
      $41.45
    • (0 reviews)
      # mpn511613
      Subaru WRX Right Head Cast # RH S20 Block Cast # EJ20, 20L/S20CL, 20R/S20CR Left Head Cast # LH S20 2003, Remanufactured Engine Long Block by Replace®. If your engine is worn out, don’t just get a rebuilt engine, get one that’s...
      Designed to be better than newReverse engineered to ensure any factory defects are eliminated
      $4,555.32
    • (0 reviews)
      # mpn1871638
      Subaru WRX / WRX STI with Interference Engine Application 2003, High Performance Timing Belt by Gates®. When you are low on oil, coolant or some other fluid, you may be tempted to just run down to the local auto parts chain st are....
      $116.88
    • (0 reviews)
      # mpn1858956
      Subaru WRX / WRX STI Manufactured After September with Interference Engine Application with Installation Tool 2003, High Performance Timing Belt Component Kit by Gates®. When you are low on oil, coolant or some other fluid, you may...
      $280.64
    • (0 reviews)
      # mpn1877410
      Subaru WRX / WRX STI with Timing Marks with Interference Engine Application 2003, Premium OE Timing Belt by Gates®. Gates is the largest global manufact are of OE timing belts. This means Gates is able to cover the Aftermarket with...
      $45.89
    • (0 reviews)
      # 437736615
      Subaru WRX / WRX STI with Interference Engine Application with Installation Tool 2003, PowerGrip™ Premium OE Timing Belt Component Kit by Gates®. Includes: Belt, Hydraulic Tensioner, 3 Idlers, Idler Sprocket, Installation Tool,...
      $159.47 - $220.04
    • (0 reviews)
      # mpn1016710
      Subaru WRX / WRX STI with Interference Engine Application 2003, Timing Belt by Dayco®. Location: Camshaft. Water Pump Driven by Timing Belt. Developed and manufactured for OHC and DOHC type engines, this timing belt provides...
      Designed for OHC and DOHC type enginesMeets all OEM performance requirements
      $44.61
    • (0 reviews)
      # mpn1017700
      Subaru WRX / WRX STI with Interference Engine Application 2003, Timing Belt Kit with Seal by Dayco®. Location: Water Pump Driven by Timing Belt. Includes: Timing Belt, Camshaft Belt Tensioner with In Arm Actuator, 4 Camshaft Belt...
      Designed to meet or exceed OE quality, fit, form and function requirementsProvides consistent slip-proof power transfer for peak engine performance
      $179.96
    • (0 reviews)
      # mpn1016711
      Subaru WRX / WRX STI with Interference Engine Application 2003, Timing Belt Kit without Seals by Dayco®. Location: Water Pump Driven by Timing Belt. Includes: Timing Belt, Camshaft Belt Tensioner with In Arm Actuator, 4 Camshaft...
      Designed to meet or exceed OE quality, fit, form and function requirementsProvides consistent slip-proof power transfer for peak engine performance
      $162.38
    • (0 reviews)
      # mpn1017681
      Subaru WRX / WRX STI with Interference Engine Application without Belt 2003, Timing Component Kit by Dayco®. Location: Water Pump Driven by Timing Belt. Includes: Camshaft Belt Tensioner with In Arm Actuator, 4 Camshaft Belt...
      Designed to replace worn or damaged OEM timing belt hardwareEnsures proper tensioning, guiding and power transmitting of timing belt
      $127.00
    • (0 reviews)
      # mpn471141
      Subaru WRX with Interference Engine Application 2003, Timing Belt by Beck Arnley®. For one hundred years, Beck/Arnley has been providing premium OE quality parts for vehicles. Beginning with motorcycle parts in 1914 and...
      OE quality products from top original equipmentTop quality materials
      $73.28
    • (0 reviews)
      # 332021000
      Subaru WRX / WRX STI 2003, Engine Mount by Genuine®. Is your vehicle feeling down on power? Do you see dark puddles on the ground when you park? Is your CHECK ENGINE light on? Your engine may be in need of repair, but before you...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $113.08 - $114.85
    • (0 reviews)
      # mpn2220696
      Subaru WRX 2003, Front Driver Side Engine Mount by Anchor®. If you feel vibration accompanied by unusual noise when driving, this can be the sign of a bad engine mount. Replace it with a mount from the leading aftermarket supplier,...
      Direct OEM replacementSecurely supports the engine on the chassis
      $29.13
    • (0 reviews)
      # mpn1506970908
      Subaru WRX 2003, Front Engine Torque Strut Mount by Anchor®. If you are looking for a quality torque strut mount to properly secure your engine and prevent excessive engine movement, this product is the way to go. Manufactured to...
      Direct OEM replacementPrevents excessive engine movement, reducing vibration and noise
      $10.40
    • (0 reviews)
      # mpn475713
      Subaru WRX / WRX STI 2003, Front Driver Side Engine Mount by Beck Arnley®. For one hundred years, Beck/Arnley has been providing premium OE quality parts for vehicles. Beginning with motorcycle parts in 1914 and transitioning to...
      OE quality products from top original equipmentTop quality materials
      $37.06
    • (0 reviews)
      # mpn1293944
      Subaru WRX / WRX STI 2003, Front Engine Mount by Westar®. Engineered to minimize vibration from the engine. This engine mount will make sure your engine runs quietly and does not rattle when started and while driving.
      Build with quality that matches or exceeds OEM SpecificationsPerfect fit
      $14.04
    • (0 reviews)
      # mpn2926215969
      Subaru WRX / WRX STI 2003, Engine Oil Pan by Replace®. . Stop oil leaks and keep your engine operating at its best with this superior Engine Oil Pan. Replace your worn out or cracked oil pan with this product to prevent damage to...
      Direct replacementMeets or exceeds OE standards
      $78.85
    • (0 reviews)
      # 36253705
      Subaru WRX 2003, Timing Idler Pulley by Beck Arnley®. For one hundred years, Beck/Arnley has been providing premium OE quality parts for vehicles. Beginning with motorcycle parts in 1914 and transitioning to import vehicles in the...
      OE quality products from top original equipmentTop quality materials
      $23.69 - $41.20
    • (0 reviews)
      # mpn148426
      Subaru WRX / WRX STI 2003, Oil Pump by Genuine®. Is your vehicle feeling down on power? Do you see dark puddles on the ground when you park? Is your CHECK ENGINE light on? Your engine may be in need of repair, but before you waste...
      OE quality fluids from top original equipment and aftermarket manufacturershe finest quality at a great price
      $193.96
    • (0 reviews)
      # mpn4202832283
      Subaru WRX / WRX STI 2003, Harmonic Balancer by Dorman®. Durable and sleek, Dorman Harmonic Balancers feature a stress-resistant rubber bond that withstands the damaging effects of heat, salt, ozone and general wear and tear. The...
      Includes woodruff key, and washers for a complete repair (where applicable)Direct replacement to ensure proper fit
      $33.78
    • (0 reviews)
      # mpn934950
      Subaru WRX 2003, Harmonic Balancer by Dayco®. Whether you are a professional engine rebuilder or shade tree mechanic, this product is what you need when OE quality, fit, and function are a must. It's manufactured using both...
      OE quality, fit, and function at an affordable priceSG (Spheroidal Graphite) iron casting for extra durability
      $64.96
    • (0 reviews)
      # mpn281187
      Subaru WRX / WRX STI 2003, Exhaust Valve by Genuine®. Is your vehicle feeling down on power? Do you see dark puddles on the ground when you park? Is your CHECK ENGINE light on? Your engine may be in need of repair, but before you...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $28.59
    • (0 reviews)
      # mpn58310
      Subaru WRX / WRX STI 2003, Intake Valve by Genuine®. Is your vehicle feeling down on power? Do you see dark puddles on the ground when you park? Is your CHECK ENGINE light on? Your engine may be in need of repair, but before you...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $17.86
    • (0 reviews)
      # 514178807
      Subaru WRX 2003, Valve by DNJ Engine Components®. Save your time and hassle when replacing your worn out or cracked valve with this superior part expertly crafted by DNJ. Designed to meet or exceed the highest OE standards, the...
      Designed to replace your worn out or cracked valveLooks, fits and performs just like your OE part
      $6.96 - $8.51
    • (0 reviews)
      # mpn1151268248
      Subaru WRX 2003, Connecting Rod Bearing Set by DNJ Engine Components®. If you crave for the finest replacement for your worn out parts, look no further than this superior bearing set that is built with the same quality and...
      Designed to provide reliable performance within your vehicle's engineMade from top-grade materials with utmost care to ensure long-lasting service
      $17.13
    • (0 reviews)
      # 99906275
      Subaru WRX 2003, Crankshaft Main Bearing Set by DNJ Engine Components®. If you crave for the finest replacement for your worn out parts, look no further than this superior bearing set that is built with the same quality and...
      Designed to provide reliable performance within your vehicle's engineMade from top-grade materials with utmost care to ensure long-lasting service
      $26.39 - $27.85
    • (0 reviews)
      # mpn2861201454
      Subaru WRX / WRX STI 2003, Oil Cooler by Genuine®. Is your vehicle feeling down on power? Do you see dark puddles on the ground when you park? Is your CHECK ENGINE light on? Your engine may be in need of repair, but before you...
      OE quality fluids from top original equipment and aftermarket manufacturershe finest quality at a great price
      $344.70
    • (0 reviews)
      # mpn216422
      Subaru WRX / WRX STI 2003, Crankshaft Pulley by Genuine®. Harmonic Balancer. Is your vehicle feeling down on power? Do you see dark puddles on the ground when you park? Is your CHECK ENGINE light on? Your engine may be in need of...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $192.21
    • (0 reviews)
      # 81878644
      Subaru WRX 2003, Timing Belt Tensioner by DNJ Engine Components®. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality, performance and reliability....
      Designed to replace your malfunctioning partsHelps get your vehicle back to its original performance
      $20.19 - $100.97
    • (0 reviews)
      # mpn122778451
      Subaru WRX / WRX STI 2003, Drive Belt Idler Pulley by Gates®. Location: Air ConditioningWhen you are low on oil, coolant or some other fluid, you may be tempted to just run down to the local auto parts chain st are. But bef are you...
      OE quality fluids from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $23.95
    • (0 reviews)
      # mpn122778928
      Subaru WRX / WRX STI 2003, High Performance Timing Belt Component Kit with Water Pump by Gates®. Finish: Blue. Interference Engine Application. If you want to keep your vehicle safe on the road for many years to come, go with this...
      Great design and functionMade from sturdy materials
      $293.67
    • (0 reviews)
      # mpn122778927
      Subaru WRX / WRX STI 2003, PowerGrip™ Premium OE Timing Belt Component Kit with Water Pump by Gates®. Interference Engine Application. If you want to keep your vehicle safe on the road for many years to come, go with this Gates...
      Great design and functionMade from sturdy materials
      $211.18
    • (0 reviews)
      # mpn898145098
      Subaru WRX / WRX STI 2003, Idler Pulley by ACDelco®. Location: Air Conditioning. The ACDelco Professional, premium aftermarket Idler Pulley is designed for use on automobiles and light duty trucks as a locked center tensioning...
      Bearing is designed for application specific speed and load requirementsProvides reliable operation under severe conditions for year round performance
      $37.58
    • (0 reviews)
      # 228390174
      Subaru WRX With Interference Engine 2003, Continental® Contitech™ Pro Series Plus™ Timing Belt Kit by Continental® ContiTech™. Belt Length: 88.50. Belt Width: 1.18. Number Of Teeth: 281. When you want to make sure you...
      OE quality product for safe, reliable, and efficient performanceComplete kit includes all components to perform a complete repair, to ensure belt will perform and operate correctly for its intended lifespan
      $359.21 - $372.23
    • (0 reviews)
      # 23209477
      Subaru WRX With Interference Engine 2003, Continental® Contitech™ Pro Series™ Timing Belt Kit by Continental® ContiTech™. Belt Length: 88.50. Belt Width: 1.18. Number Of Teeth: 281. When you want to make sure you won’t...
      OE quality product for safe, reliable, and efficient performanceComplete kit includes all components to perform a complete repair, to ensure belt will perform and operate correctly for its intended lifespan
      $329.58 - $334.33
    • (1 review)
      # mpn2213937
      Subaru WRX / WRX STI with Cogged Roller 2003, Driver Side Lower Timing Belt Idler by GMB®. Is your vehicle feeling down on power? Do you see dark puddles on the ground when you park? Is your CHECK ENGINE light on? Your engine may...
      OE quality fluids from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $25.07
    • (0 reviews)
      # mpn1812040
      Subaru WRX / WRX STI with Smooth Roller with Double Style Bearing 2003, Passenger Side Upper Timing Belt Idler by Koyo®. Do you hear chirping or squealing noise? Has the "power" disappeared from your steering? Does your engine...
      OE quality parts from top original equipment and aftermarket manufacturershe finest quality at a great price
      $27.66
    • (0 reviews)
      # mpn1282123
      Subaru WRX / WRX STI with Cogged Double Roller 2003, Driver Side Lower Timing Belt Idler by NSK®. Do you hear chirping or squealing noise? Has the "power" disappeared from your steering? Does your engine crank slowly and are your...
      $38.90
    • (0 reviews)
      # mpn2460676
      Subaru WRX / WRX STI 2003, Lower or Driver Side Upper Timing Belt Idler by NTN®. Do you hear chirping or squealing noise? Has the "power" disappeared from your steering? Does your engine crank slowly and are your lights dim? You...
      $41.23
    • (0 reviews)
      # 437575772
      Subaru WRX / WRX STI 2003, Century Series™ Premium OE Micro-V Serpentine Belt by Gates®. When you are low on oil, coolant or some other fluid, you may be tempted to just run down to the local auto parts chain st are. But bef are...
      OE quality fluids from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $11.00 - $12.35
    • (0 reviews)
      # 438999396
      Subaru WRX / WRX STI 2003, Drive Rite™ V-Ribbed Serpentine Belt by Dayco®. Effective Length: 34.50". Specially formulated high temperature Polymer along with the highest level of engineered reinforcement proves to perform better...
      Faster and more consistent throttle response at high speedsQuicker throttle response at mid-speed acceleration
      $5.88 - $6.56
    • (0 reviews)
      # 439126069
      Subaru WRX / WRX STI 2003, Poly Rib™ W Profile Serpentine Belt by Dayco®. Compared to any other belt on the market, this belt provides better belt-to-pulley contact thus reducing slippage and noise thanks to its multiple rib W...
      Designed for power transmission on multiple-accessory drivesW Profile conforms to worn misaligned drives in older applications
      $10.37 - $11.59
    • (0 reviews)
      # 437744275
      Subaru WRX / WRX STI 2003, Professional™ V-Ribbed Serpentine Belt by ACDelco®. Designed utilizing the latest technology, this Professional V-Ribbed Serpentine Belt by ACDelco features premium quality and will perform better than...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $14.54 - $15.15
    • (0 reviews)
      # 438983982
      Subaru WRX 2003, Precision Engineered V-Ribbed Serpentine Belt by Bando®.
      Highly efficient power transmissionFlexible, oil and heat resistant backing extends belt life
      $5.69 - $5.97
    • (0 reviews)
      # mpn469959173
      Subaru WRX STI 2003, Fine Tune V-Belt by HKS®. Size: 4PK895. Designed to deliver smooth and reliable performance without slipping, this product from HKS withstands the most severe conditions providing you with miles of reliable...
      For safe, reliable, and efficient performanceManufactured using the latest material technology
      $49.73
    • (0 reviews)
      # mpn161901
      Subaru WRX / WRX STI 2003, Oil Filter by Beck Arnley®. For one hundred years, Beck/Arnley has been providing premium OE quality parts for vehicles. Beginning with motorcycle parts in 1914 and transitioning to import vehicles in the...
      OE quality products from top original equipmentTop quality materials
      $4.39
    • (0 reviews)
      # mpn771240774
      Subaru WRX / WRX STI 2003, Engine Oil Filter by ACDelco®. Designed utilizing the latest technology, this Oil Filter by ACDelco features premium quality and will perform better than advertised. Perfect for your vehicle and...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $4.10
    • (0 reviews)
      # mpn798915
      Subaru WRX / WRX STI 2003, Oil Filter by Bosch®. For premium engine performance, you need a premium oil filter. This filter from Bosch is highly efficient in filtering the oil by trapping both large and microscopic particles from...
      Designed for a proper fit99% efficiency – traps small engine-damaging particles
      $5.10
    • (0 reviews)
      # mpn879738
      Subaru WRX / WRX STI 2003, Oil Filter by Bosch®. When visiting your local repair shop to get a routine oil change, replace your old oil filter with a workshop oil filter from Bosch. Having an efficiency of 97.5%, this filter holds...
      Screens up to 97.5% of harmful contaminants such as dirt and oil from getting into the engineHolds up to 13 grams of dirt and contaminants
      $3.24
    • (0 reviews)
      # mpn1013903146
      Subaru WRX 2003, Oil Filter by Denso®. When it comes to oil filters, you can't do better than Denso. This is why Densi is one of the world's premier OE oil filter suppliers. Denso uses this world class know-how to produce First...
      Heavy-duty steel case resists distortionPre-lubricated molded o-ring provides superior sealing over generic filters
      $4.37
    • (0 reviews)
      # mpn1335657558
      Subaru WRX / WRX STI 2003, Engine Oil Filter by FRAM®. 1 Piece. The moving parts in your engine are cushioned by a very thin film of oil between the moving parts and bearings. If dirt gets in between these components, you may end...
      Provides superior engine protection and oil filtrationDesigned for Conventional Motor Oil
      $4.22
    • (0 reviews)
      # mpn1776694
      Subaru WRX / WRX STI 2003, Engine Oil Filter by FRAM®. 1 Piece. This Full-Flow Spin-On filter helps to extend the service life of High Mileage vehicles ensuring maximum engine protection and unrestricted oil flow. It's the perfect...
      Ensures extreme engine protection and oil filtration for older high mileage vehiclesContains time-released additives to maintain protection throughout oil life
      $6.03
    • (0 reviews)
      # mpn2299397970
      Subaru WRX / WRX STI 2003, Engine Oil Filter by FRAM®. Do you feel shaking or shuddering when you engage the clutch; hear grinding noise when you shift gears? Does your engine race without an increase in road speed? You’re in...
      Quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $1.92
    • (1 review)
      # mpn1776703
      Subaru WRX / WRX STI 2003, Engine Oil Filter by FRAM®. 1 Piece. This filter is designed to ensure maximum protection to your engine under any driving conditions. FRAM Tough Guard oil filter uses only high-quality media blend and...
      Ensures extreme engine protection and oil filtrationDesigned for Premium Conventional and Synthetic Blend Motor Oil
      $5.87
    • (0 reviews)
      # mpn1776709
      Subaru WRX / WRX STI 2003, Engine Oil Filter by FRAM®. 1 Piece. Engineered for maximum engine protection without affecting oil flow this full-flow filter utilizes dual-layer synthetic media that provides 99%+ filtration efficiency,...
      Designed for Full-Flow oil filtrationFor use with synthetic oil
      $6.92
    • (0 reviews)
      # mpn1380926
      Subaru WRX / WRX STI 2003, Engine Oil Filter by Hastings®. 1 Piece. This filter traps contaminants from the oil minimizing the possibility of costly engine repairs. To prevent any leaks, it comes with a nitrile gasket that...
      Protects the engine from damaging contaminantsExcels in both contaminant removal efficiency and contaminant holding capacity
      $5.83
    • (0 reviews)
      # mpn615955079
      Subaru WRX with USA Built Models 2003, Spin-On Lube Filter by WIX®. Oil is the life-blood of an engine, which means the oil filter should never be taken for granted, especially in harsh heavy-duty environments. The small price...
      Filters oil by trapping particles from entering the engineHighly durable and reliable
      $2.42
    • (0 reviews)
      # mpn620490673
      Subaru WRX 2003, Spin-On Lube Filter by WIX®. Oil is the life-blood of an engine, which means the oil filter should never be taken for granted, especially in harsh heavy-duty environments. The small price maintenance teams must pay...
      Filters oil by trapping particles from entering the engineHighly durable and reliable
      $5.16




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    2003 Subaru WRX Replacement Engine Parts Reviews

    Average rating:  5  5 - 6 reviews
    5 of 5
    Valve Lash Adjusters Worked.
    We were told that the valve lash adjusters were no longer available from any other source other than this company. We were disappointed until I googled Toyota Land Cruiser vintage parts. CARiD came up with a replacement part that said "Ford" on the card of 4? Well they work just fine even though the fit was a little loose they tightened and worked as well as the original adjusters. Thank you CARiD for the research to find a part that works when the OE parts are no longer available. These Toyotas can be restored even though the parts say they are for ford vehicles. We are very glad to have used CARiD and will use the company in the future. Lee Walker service manager at Bairds Automotive.
    BPosted by Billy (Las Cruces, NM) / February 14, 2017
    Was this review helpful for you? Yes
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    2003 Subaru WRX Models
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