2004 Subaru WRX Transmission Parts

    • National®Automatic Transmission Extension Housing Seal
      $10.63$8.50
      (0)
      Subaru WRX Subaru 4 Speeds 2004, Automatic Transmission Extension Housing Seal by National®. Don’t just repair a leak, prevent future problems with a National Oil Seal. This part is manufactured using exclusive National Dynamic...
      Designed to increase wheel-end reliability by effectively excluding dirt, moisture, and other contaminantsA patent-pending National Dynamic Edge technology allows for maximum protection
      # 20917185
    • National®Automatic Transmission Output Shaft Seal
      $3.43from $2.74
      (0)
      Subaru WRX Subaru 4 Speeds 2004, Automatic Transmission Output Shaft Seal by National®. Don’t just repair a leak, prevent future problems with a National Oil Seal. This part is manufactured using exclusive National Dynamic Edge...
      Designed to increase wheel-end reliability by effectively excluding dirt, moisture, and other contaminantsA patent-pending National Dynamic Edge technology allows for maximum protection
      # 21011541
    • Hayden®Rapid-Cool™ Transmission Oil Cooler Kit
      $45.84from $36.67
      (0)
      Subaru WRX 2004, Rapid-Cool™ Transmission Oil Cooler Kit by Hayden®. 3/8" Push-On Fittings, Plate and Fin Style. This premium transmission oil cooler features a unique plate and fin design, which is 33% more efficient than a...
      Unique plate and fin design33% more efficient than a comparable tube and fin design
      # 23646171
    • Hayden®Transmission Oil Cooler Mounting Kit
      $10.60from $8.48
      (0)
      Subaru WRX 2004, Transmission Oil Cooler Mounting Kit by Hayden®. With this product, you can easily install both your transmission oil cooler and electric fan. This kit includes nylon rods, foam pads, and removable locking buttons.
      Ensures trouble-free installation of transmission coolers and electric fansIncludes nylon rods, foam pads, and removable locking buttons
      # 23646175
    • Hayden®Ultra-Cool™ Transmission Oil Cooler Kit
      $31.81from $25.45
      (0)
      Subaru WRX 2004, Ultra-Cool™ Transmission Oil Cooler Kit by Hayden®. 3/8" Push-On Fittings, Tube and Fin Style. This product is an effective and economical way to keep your transmission at its optimum operating temperature. The...
      High-efficiency turbulators in every tube ensure maximum heat dissipationUltrasonically soldered for reliability
      # 23646181
    • Hayden®High Performance Transmission Oil Cooler Kit
      $46.15from $36.92
      (0)
      Subaru WRX 2004, High Performance Transmission Oil Cooler Kit by Hayden®. 9/16" - 18 S.A.E. Flare Fittings, Tube and Fin Style. Featuring a lightweight aluminum construction, this high performance transmission oil cooler is...
      All aluminum lightweight constructionElectrostatically powder coated to prevent corrosion
      # 23646185
    • EXEDY®OEM Replacement Clutch Kit
      $320.40$256.32
      (0)
      Subaru WRX 2004, OEM Replacement Clutch Kit by EXEDY®. Disc Outer Diameter 228mm, Splines Diameter 1, Spline Teeth 24T. Replace your failing OEM clutch with a new, OEM-quality EXEDY clutch assembly. EXEDY is a Tier 1 Supplier to...
      # 7054338
    • RhinoPac®Premium Pull Type Clutch Kit
      $342.99from $274.39
      (0)
      Subaru WRX 2004, Premium Pull Type Clutch Kit by RhinoPac®. Disk Type: Organic. Without Slave Cylinder. Upgrade your vehicle to a RhinoPac Clutch Kit to get smooth clutch operation and precise shifting you expect from your car....
      Helps restore factory-like performanceDurable construction for long-term use
      # 21538550
    • RhinoPac®SR Series Pull Type Clutch Kit
      $626.20from $500.96
      (0)
      Subaru WRX 2004, SR Series Pull Type Clutch Kit by RhinoPac®. Without Slave Cylinder. Upgrade your vehicle to RhinoPac's SR Clutch Kit which features a unique combination of torque capacity, coefficient of friction, and clamp load...
      Performance upgrade kitEngineered for modified street use
      # 21538553
    • Beck Arnley®Clutch Kit
      $333.86from $267.09
      (0)
      Subaru WRX 2004, Clutch Kit by Beck Arnley®, Original Replacement Service Set: Flywheel not Included, Spline: 24, 1" Diameter. For one hundred years, Beck/Arnley has been providing premium OE quality parts for vehicles. Beginning...
      OE quality products from top original equipmentTop quality materials
      # 36253715
    • Dorman®Clutch Master Cylinder
      $59.41$47.53
      (0)
      Subaru WRX 2004, Clutch Master Cylinder by Dorman®. Dorman’s Clutch Master Cylinder effectively returns hydraulic pressure to the clutch system, restoring the ability to shift properly again. Dorman also offers a Clutch Master...
      Direct replacement for a proper fit every timeReinforced nylon, cast iron or aluminum construction for a long service life
      # 17885437
    • RhinoPac®External Clutch Slave Cylinder
      $47.03$37.62
      (0)
      Subaru WRX 2004, External Clutch Slave Cylinder by RhinoPac®. Mount: Perpendicular. Body Type: Cast Iron. Without Bearing. A worn and/or leaking slave cylinder may not allow the clutch to fully disengage, causing a soft pedal and...
      OE fit and functionOptimum performance and lasting durability
      # 21526137
    • RhinoPac®Clutch Master Cylinder
      $67.60$54.08
      (0)
      Subaru WRX / WRX STI 2004, Clutch Master Cylinder by RhinoPac®. Replace your leaking or worn clutch master cylinder and shift properly again. This part is constructed from heavy duty material for extended service life and ensures...
      Helps restore shift qualityBuilt tough for extra durability
      # 21526899
    • National®Clutch Release Bearing
      $41.09$32.87
      (0)
      Subaru WRX 2004, Clutch Release Bearing by National®. Bearing Assembly - Sealed Self-Aligning. This bearing is manufactured from high quality steel and constructed utilizing state-of-the-art computer controlled heat treatment...
      Possesses excellent antifriction propertiesManufactured utilizing computer controlled heat treatment processes for lasting performance
      # 20924154
    • National®Manual Transmission Input Shaft Seal
      $12.30$9.84
      (0)
      Subaru WRX 2004, Manual Transmission Input Shaft Seal by National®. Don’t just repair a leak, prevent future problems with a National Oil Seal. This part is manufactured using exclusive National Dynamic Edge technology that...
      Designed to increase wheel-end reliability by effectively excluding dirt, moisture, and other contaminantsA patent-pending National Dynamic Edge technology allows for maximum protection
      # 21011556
    • National®Manual Transmission Output Shaft Seal
      $3.43from $2.74
      (0)
      Subaru WRX 2004, Manual Transmission Output Shaft Seal by National®. Don’t just repair a leak, prevent future problems with a National Oil Seal. This part is manufactured using exclusive National Dynamic Edge technology that...
      Designed to increase wheel-end reliability by effectively excluding dirt, moisture, and other contaminantsA patent-pending National Dynamic Edge technology allows for maximum protection
      # 21011564
    • National®Manual Transmission Differential Bearing
      $33.34$26.67
      (0)
      Subaru WRX Subaru TY754 5 Speeds 2004, Manual Transmission Differential Bearing by National®. This bearing is manufactured from high quality steel and constructed utilizing state-of-the-art computer controlled heat treatment...
      Possesses excellent antifriction propertiesManufactured utilizing computer controlled heat treatment processes for lasting performance
      # 20928416
    • National®Automatic Transmission Extension Housing Repair Sleeve
      $40.31$32.25
      (0)
      Subaru WRX Subaru 4 Speeds 2004, Automatic Transmission Extension Housing Repair Sleeve by National®. 2nd Design. 1.365" Shaft. 35 mm I.D. This part is manufactured by one of the most trusted names in the automotive industry to...
      Designed for dependable operation and lasting performanceMeets OE configurations
      # 20916843
    • National®Automatic Transmission Output Shaft Repair Sleeve
      $37.16$29.73
      (0)
      Subaru WRX Subaru 4 Speeds 2004, Automatic Transmission Output Shaft Repair Sleeve by National®. This part is manufactured by one of the most trusted names in the automotive industry to keep your vehicle perform optimally. It is...
      Designed for dependable operation and lasting performanceMeets OE configurations
      # 21011538
    • Beck Arnley®Automatic Transmission Mount
      $58.10$46.48
      (0)
      Subaru WRX 2.5L 2004, Automatic Transmission 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 import...
      OE quality products from top original equipmentTop quality materials
      # 35813635
    • Beck Arnley®Automatic Transmission Filter
      $18.48from $14.78
      (0)
      Subaru WRX 2004, Automatic Transmission 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...
      OE quality products from top original equipmentTop quality materials
      # 35861825
    • Hastings®Spin-on Automatic Transmission Filter
      $23.59$18.87
      (0)
      Subaru WRX 2.5L 2004, Spin-on Automatic Transmission Filter by Hastings®. This filter removes dirt, dust, and other contaminants from the automatic transmission fluid to minimize wear inside the system prolonging its service life....
      For use with standard and fully synthetic transmission fluidsProlongs the service life of the transmission
      # 21462039
    • Dorman®Transmission Magnetic Drain Plugs
      $2.98from $2.38
      (0)
      Subaru WRX STI 2004, Stainless Steel Transmission Magnetic Drain Plugs by Dorman®. Dorman’s Oil Drain Plugs are available in many styles styles, including standard, inset gasket, molded gasket, and pilot point. Other options...
      Direct replacement for a proper fit every timeCoated for high corrosion resistance and a long service life
      # 43378151
    • Fel-Pro®Automatic Transmission Oil Pan Gasket
      $16.76$13.41
      (0)
      Subaru WRX 2004, Automatic Transmission Oil Pan Gasket by Fel-Pro®. With 20 Bolt Holes. If you need durable gaskets to prevent leaks on your vehicle, Fel-Pro is the way to go. Engineered using the latest technologies and global...
      Direct OEM replacement for a proper fitEnsure reliable sealing performance
      # 40581643
    • Beck Arnley®Clutch Master Cylinder
      $73.49$58.79
      (0)
      Subaru WRX 2004, Clutch Master Cylinder 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...
      OE quality products from top original equipmentTop quality materials
      # 36225583
    • Beck Arnley®Clutch Slave Cylinder
      $35.89from $28.71
      (0)
      Subaru WRX 2004, Clutch Slave Cylinder 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...
      OE quality products from top original equipmentTop quality materials
      # 36253718
    • National®Automatic Transmission Torque Converter Repair Sleeve
      $33.38$26.70
      (0)
      Subaru WRX Subaru 4 Speeds 2004, Automatic Transmission Torque Converter Repair Sleeve by National®. 1.95" Shaft. This part is manufactured by one of the most trusted names in the automotive industry to keep your vehicle perform...
      Designed for dependable operation and lasting performanceMeets OE configurations
      # 20921409
    • National®Automatic Transmission Torque Converter Seal
      $11.86$9.49
      (0)
      Subaru WRX Subaru 4 Speeds 2004, Automatic Transmission Torque Converter Seal by National®. Don’t just repair a leak, prevent future problems with a National Oil Seal. This part is manufactured using exclusive National Dynamic...
      Designed to increase wheel-end reliability by effectively excluding dirt, moisture, and other contaminantsA patent-pending National Dynamic Edge technology allows for maximum protection
      # 20922175
    • National®Automatic Transmission Oil Pump Seal
      $12.63$10.10
      (0)
      Subaru WRX Subaru 4 Speeds 2004, Automatic Transmission Oil Pump Seal by National®. Don’t just repair a leak, prevent future problems with a National Oil Seal. This part is manufactured using exclusive National Dynamic Edge...
      Designed to increase wheel-end reliability by effectively excluding dirt, moisture, and other contaminantsA patent-pending National Dynamic Edge technology allows for maximum protection
      # 20920239
    • Hayden®Transmission Oil Cooler Barrier Hose
      $14.80from $11.84
      (0)
      Universal Transmission Oil Cooler Barrier Hose by Hayden®. This part provides a safe heat and oil resistant connecting line between your oil cooler and transmission. Manufactured from black chemigum, the oil cooler hose features a...
      Designed for transmission fluid applicationsMade for tight radius applications found in transmission cooler installations
      # 22196995
    • Hayden®Transmission Oil Cooler Mounting Kit
      $13.25from $10.60
      (0)
      Universal Transmission Oil Cooler Mounting Kit by Hayden®. With this product, you can easily install your transmission oil cooler. This kit includes everything required to easily do the job.
      Quality constructionEnsures trouble-free installation of transmission oil coolers
      # 22278594
    • Hayden®Transmission Oil Cooler Hose
      $13.08$10.46
      (0)
      Subaru WRX 2004, Transmission Oil Cooler Hose by Hayden®. Size: 11/32" x 4 1/2". This part provides a safe heat and oil resistant connecting line between your oil cooler and transmission. Manufactured from black chemigum, the oil...
      Direct replacement for proper fitMade of black chemigum (nitrile)
      # 23602418
    • National®Manual Transmission Input Shaft Repair Sleeve
      $29.26$23.41
      (0)
      Subaru WRX 2004, Manual Transmission Input Shaft Repair Sleeve by National®. This part is manufactured by one of the most trusted names in the automotive industry to keep your vehicle performing optimally. It is built to the...
      Designed for dependable operation and lasting performanceMeets OE configurations
      # 21011553
    • National®Manual Transmission Output Shaft Repair Sleeve
      $37.16$29.73
      (0)
      Subaru WRX 2004, Manual Transmission Output Shaft Repair Sleeve by National®. This part is manufactured by one of the most trusted names in the automotive industry to keep your vehicle performing optimally. It is built to the...
      Designed for dependable operation and lasting performanceMeets OE configurations
      # 21011559
    • B&M®Original Trick Shift™ Automatic Transmission Fluid
      $6.50$5.20
      (0)
      Original Trick Shift™ Automatic Transmission Fluid by B&M®. Trick Shift is the easiest way to improve the transmission performance of your vehicle. The fluid can be mixed with stock-type transmission fluids, however to attain...
      Ensures firmer shiftsPour-in performance
      # 9479195
    • Royal Purple®Synchromax™ Manual Transmission Fluid
      $229.80$183.84
      (0)
      Synchromax™ Manual Transmission Fluid by Royal Purple®. This is a case of 12 x 32-ounce bottles. The fluid is designed to provide exceptional performance while also extend the life of your transmission. The Synchromax greatly...
      # 12156218
    • Royal Purple®Max ATF™ Automatic Transmission Fluid
      $191.88$153.50
      (1)
      Max ATF™ Automatic Transmission Fluid by Royal Purple®. This is a case of 12 x 32-ounce bottles. It significantly reduces heat and wear to extend the life of your transmission. The Max ATF is fully compatible with other automatic...
      # 12156309
    • Nachi®Pilot Bearing
      $10.81$8.65
      (0)
      Subaru WRX 2004, Pilot Bearing by Nachi®. 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 need of...
      # 7740105
    • Nabtesco®Clutch Master Cylinder
      $202.40$161.92
      (0)
      Subaru WRX 2.0L 2004, Clutch Master Cylinder by Nabtesco®. 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...
      # 7769966
    • Nabtesco®Clutch Slave Cylinder
      $87.58from $70.06
      (0)
      Subaru WRX 2004, Clutch Slave Cylinder by Nabtesco®. 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 need...
      # 7790148
    • Exedy®Clutch Disc
      $509.61$407.69
      (0)
      Subaru WRX STI 2004, Clutch Disc by Exedy®. cerametallic clutch disc. Note: Eng: E978365-, Production: 04/01/2003-, cerametallic clutch disc. Do you feel shaking or shuddering when you engage the clutch; hear grinding noise when...
      # 7954777
    • EXEDY®Racing Flywheel
      $710.76$568.61
      (0)
      Subaru WRX Standard Transmission 2004, Racing Flywheel by Exedy®. Sport. Note: Sport Solid one piece billet chrome-moly steel; 5.8 kgs; 8 crank bolts; 124 teeth Specifically designed to reduce weight and inertia for better engine...
      # 7956965
    • Exedy®Release Bearing
      $82.53$66.02
      (0)
      Subaru WRX 2004, Release Bearing by Exedy®. 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 need of...
      # 7957003
    • Exedy®Clutch Kit
      $288.56from $230.85
      (0)
      Subaru WRX 2004, Clutch Kit by Exedy®. 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 need of...
      # 7974104
    • Full®AT Filter
      $34.51$27.61
      (0)
      Subaru WRX 2004, AT Filter by Full®. Note: Spin On Type. 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...
      # 8013851
    • MTC®Transmission Mount
      $86.38$69.10
      (0)
      Subaru WRX Automatic Transmission 2004, Transmission Mount by MTC®. 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?...
      # 8669224
    • SKF®Pilot Bearing
      $22.58$18.06
      (0)
      Subaru WRX 2004, Pilot Bearing by SKF®. Not Sealed. 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 need...
      # 8763943
    • Genuine®AT Solenoid
      $203.56$162.85
      (0)
      Subaru WRX Automatic Transmission 2004, AT Solenoid by Genuine®. Note: Control #1 Assembly. Do you feel shaking or shuddering when you engage the clutch; hear grinding noise when you shift gears? Does your engine race without an...
      # 8779770
    • Genuine®Clutch Disc
      $240.80$192.64
      (0)
      Subaru WRX STI 2004, Clutch Disc by Genuine®. Note: Eng: E978365-, Production: 04/01/2003. Do you feel shaking or shuddering when you engage the clutch; hear grinding noise when you shift gears? Does your engine race without an...
      # 8799646
    • Genuine®Pressure Plate
      $247.88$198.30
      (0)
      Subaru WRX STI 2004, Pressure Plate by Genuine®. 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 need of...
      # 8804017
    • Genuine®Rel Brg Clip
      $5.34$4.27
      (0)
      Subaru WRX 2004, Rel. Brg. Clip by Genuine®. 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 need of...
      # 8807011
    • Genuine®Flywheel
      $364.91$291.93
      (0)
      Subaru WRX STI 2004, Flywheel by Genuine®. Note: Eng: 978365-, Production: 08/01/2003-, Inc. Ring Gear & Pilot Bearing. Do you feel shaking or shuddering when you engage the clutch; hear grinding noise when you shift gears? Does...
      # 8824735
    • Genuine®Flywheel Bolt
      $3.70$2.96
      (0)
      Subaru WRX / WRX STI 2004, Flywheel Bolt by Genuine®. 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 need...
      # 8824856
    • Genuine®Input Shaft Bearing
      $272.21$217.77
      (0)
      Subaru WRX 2004, Input Shaft Bearing by Genuine®. 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 need of...
      # 44711900
    • Hayden®Replacement O-Ring
      $4.55from $3.64
      (0)
      Universal Replacement O-Ring for Engine Oil Coolers by Hayden®. When reinstalling your oil cooler, it is necessary to replace your o-ring to prevent leaks. Hayden offers you a quality replacement o-ring designed specifically for...
      Designed for use with oil coolersPrevents leaks
      # 22191342
    • Febi®Auto Trans Fluid
      $20.76from $16.61
      (0)
      Subaru WRX 2004, Auto Trans Fluid by Febi®. When you’re low on oil, coolant or some other fluid, you may be tempted to just run down to the local auto parts chain store. But before you waste your time and gas only to find high...
      # 8403071
    • Lakewood®BFL Yellow Label Racing Gear Lube
      $184.14$147.31
      (0)
      BFL Yellow Label Racing Gear Lube by Lakewood®, 12 Quarts per Case. Lakewood 32970, Gear Lube, Limited Slip, 80W90, 32 oz. This is a case of twelve 32-ounce bottles of “Yellow Label” 80w-90 mineral gear oil designed for use in...
      Contains twelve 32-ounce bottles of 80w-90 mineral-based gear oil“Yellow label” is designed for use in clutch-type limited slip differentials
      # 12076401
    Guides & Articles
    If you’ve decided it’s time to replace the clutch on your manual-transmission car, you’ve reached the point where advantages (crisp, new-feeling response) have come to outweigh disadvantages (significant labor costs or time spent doing it yourself). Whether you don’t have a choice because your old clutch slips badly, or you want to take initiative and...
    In this article we'll look at the differences between a "transaxle" and a "transmission". In short, a transaxle performs both the gear-changing function of a transmission and the power-splitting ability of an axle differential in one integrated unit. A transmission performs the gear-changing function only, delivering power via a single output shaft at the back of...
    In this installment, we'll give you the steps for replacing the transmission fluid and fluid filter inside your vehicle's automatic transmission – saving you several hundred dollars by sparing you a visit to the shop. This maintenance procedure is a straightforward one, and it's important for the overall longevity of your transmission. The engineers that built...