2005 Kia Optima Automatic Transmission Parts

Engine:

Showing parts for every engine. Select an engine to see only what fits.

The 2005 Kia Optima has 70 automatic transmission parts with verified fitment on this page — 16 part types and 28 brands, covering both the 2.4L L4 and the 2.7L V6. Each part includes a manufacturer part number and application notes.

The automatic transmission on the 2005 Kia Optima covers the automatic gearbox and its supporting cast — filters, coolers, solenoids, mounts and torque-converter parts. The largest groups are Filter (11 parts), Transmission Fluid (10 parts) and Transmission Fluid Additive (8 parts). The other 13 part types cover the remaining 41 parts.

Bushing Kit

Brand Part Number Markets Notes Buy
PA CARGO Fits: 2.4L L4 K41905J
🇺🇸 US 🇨🇦 CA
4 Speed FWD F4A42 Transmission
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This table covers the Bushing kits.

Filter

Economy

Brand Part Number Markets Notes Buy
PA CARGO Popular Fits: 2.4L L4 41710L
🇺🇸 US 🇨🇦 CA
4 Speed FWD F4A42 Transmission
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PUROLATOR Popular Fits: 2.4L L4 P1290
🇺🇸 US
Style: Spin-On Lube Filter
Fitment notes — PUROLATOR P1290
Style: Spin-On Lube Filter
Spin-on filter
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AUTO EXTRA Fits: 2.4L L4 61651064
🇺🇸 US
Spin-on filter
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FAMOUS BRAND Fits: 2.4L L4 96067
🇺🇸 US 🇨🇦 CA
Automatic Transmission Filter Kit4 Speed Trans or 5 Speed Trans
Fitment notes — FAMOUS BRAND 96067
Automatic Transmission Filter Kit4 Speed Trans or 5 Speed TransF4A41-1 Trans or F4A42 Trans or F4A42-1 Trans or F4A42-2 Trans or F4A4B-1 Trans or F4A4B-4 Trans or F4A51 Trans or F4A51-2 Trans or F4A5A-4 Trans or F5A51 Trans or F5A5A-4 TransSpin-On External Filter May Not be Used On All Transmissions
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VARIOUS MFR Fits: 2.4L L4 PT1290
🇺🇸 US
Spin-on
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Standard Replacement

Brand Part Number Markets Notes Buy
WIX Popular Fits: 2.4L L4 51064
🇺🇸 US
Spin-On Filter
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BECK/ARNLEY Fits: 2.4L L4 0440328
🇺🇸 US
Internal Filter
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RAYBESTOS POWERTRAIN Fits: 2.4L L4 515881
🇺🇸 US
Internal FilterA5GF1 Trans
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VAICO Fits: 2.4L L4 V520468
🇺🇸 US
Description: ATF-Service Kit (A5GF1, A5HF1 / 5-speed)Includes Oil Pan Gasket and Sump Filter
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VAICO Fits: 2.4L L4 V520081
🇺🇸 US
Hydraulic Filter
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Brand Part Number Markets Notes Buy
ECOGARD Fits: 2.4L L4 XT1290
🇺🇸 US
PRIMARYSPIN-ON
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This table covers the replacement filters for this application — the table heading and notes say which circuit. Typical signs include restricted flow — long cranking, weak airflow, or dirty fluid after a short interval. Seat the new filter so it cannot bypass, and use the grade the notes call for.

Fluid Pan

Brand Part Number Markets Notes Buy
HYUNDAI Fits: 2.4L L4 4528339000
🇺🇸 US
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This table covers the pans that hold automatic-transmission fluid.

Fluid Pump Repair Sleeve

Brand Part Number Markets Notes Buy
SCHAEFFLER Fits: 2.4L L4 SR3502
🇺🇸 US
Front15.88 mm Width
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SKF Fits: 2.4L L4 99182
🇺🇸 US
Shaft Diameter: 1.693 In
Fitment notes — SKF 99182
Shaft Diameter: 1.693 In
Front
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This table covers the precision wear sleeves used to restore a transmission pump seal surface.

Fluid Pump Seal

Brand Part Number Markets Notes Buy
SKF Fits: 2.4L L4 16984
🇺🇸 US
Front
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This table covers the seals at the Fluid Pump. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.

Fluid Temperature Sensor

Brand Part Number Markets Notes Buy
WELLS Fits: 2.4L L4 5S7692
🇺🇸 US
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This table covers the Fluid temperature sensors. Typical signs include hard cold starts, a fan that never comes on, or a gauge that disagrees with the scan tool. A sensor that reads open or shorted is usually the part; an implausible-but-smooth reading can be wiring.

Output Shaft Bearing

Economy

Brand Part Number Markets Notes Buy
WJB / INMOTION PARTS Popular Fits: 2.4L L4 WT32009X
🇺🇸 US
Frontwith Mitsubishi F4A42 Transmission
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WJB / INMOTION PARTS Fits: 2.4L L4 WT32006
🇺🇸 US
Bearing & Race Set
Fitment notes — WJB / INMOTION PARTS WT32006
Bearing & Race Set
Rearwith Mitsubishi F4A42 Transmission
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Standard Replacement

Brand Part Number Markets Notes Buy
NATIONAL Popular Fits: 2.4L L4 32009X
🇺🇸 US
Frontwith Mitsubishi F4A42 Transmission
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BCA Fits: 2.4L L4 NB32006
🇺🇸 US
Taper Bearing SetIncludes Cup and Cone
Fitment notes — BCA NB32006
Taper Bearing SetIncludes Cup and ConeRear
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BCA Fits: 2.4L L4 NB32009X
🇺🇸 US
Bearing & Race Set
Fitment notes — BCA NB32009X
Bearing & Race Set
Frontwith F4A42 Transmission CodeMitsubishi Transmission
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NATIONAL Fits: 2.4L L4 32006
🇺🇸 US
Bearing & Race Set
Fitment notes — NATIONAL 32006
Bearing & Race Set
Rearwith Mitsubishi F4A42 Transmission
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This table covers the Output Shaft bearings. Typical signs include a growl that rises with speed, or play in the shaft or hub. Set preload the way the notes specify. A dry or crushed bearing fails quickly.

Output Shaft Repair Sleeve

Brand Part Number Markets Notes Buy
BCA Fits: 2.4L L4 NS99139
🇺🇸 US
Fits Right
Fitment notes — BCA NS99139
Fits:
Right
or:
Left
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NATIONAL Fits: 2.4L L4 99139
🇺🇸 US
Fits Leftwith Mitsubishi F4A42 Transmission
Fitment notes — NATIONAL 99139
Fits:
Leftwith Mitsubishi F4A42 Transmission
or:
Rightwith Mitsubishi F4A42 Transmission
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WJB / INMOTION PARTS Fits: 2.4L L4 WS99139
🇺🇸 US
Fits Leftwith Mitsubishi F4A42 Transmission
Fitment notes — WJB / INMOTION PARTS WS99139
Fits:
Leftwith Mitsubishi F4A42 Transmission
or:
Rightwith Mitsubishi F4A42 Transmission
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This table covers the wear sleeves used to restore a Output Shaft seal surface.

Output Shaft Seal

Brand Part Number Markets Notes Buy
SKF Popular Fits: 2.4L L4 16143
🇺🇸 US
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NATIONAL Fits: 2.4L L4 710977
🇺🇸 US
Rightwith Mitsubishi_F4A42 Transmission
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NATIONAL Fits: 2.4L L4 710976
🇺🇸 US
Leftwith Mitsubishi F4A42 Transmission
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WJB / INMOTION PARTS Fits: 2.4L L4 WS710976
🇺🇸 US
Leftwith Mitsubishi F4A42 Transmission
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WJB / INMOTION PARTS Fits: 2.4L L4 WS710977
🇺🇸 US
Rightwith Mitsubishi_F4A42 Transmission
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This table covers the seals at the Output Shaft. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.

Rebuild Kit

Banner Kit (Overhaul Kit + Friction Clutch Plates)

Brand Part Number Markets Notes Buy
PA CARGO Fits: 2.4L L4 DK4100LS
🇺🇸 US 🇨🇦 CA
Banner Kit
Fitment notes — PA CARGO DK4100LS
Banner Kit
Trans. code F4A42
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Deluxe Kit (Master Kit + Filter, Band & Common Bushings)

Brand Part Number Markets Notes Buy
PA CARGO Fits: 2.4L L4 MRK4100L
🇺🇸 US 🇨🇦 CA
Deluxe Kit
Fitment notes — PA CARGO MRK4100L
Deluxe Kit
Trans. code F4A42
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Master Kit (Overhaul Kit + Friction & Steel Clutch Plates)

Brand Part Number Markets Notes Buy
PA CARGO Fits: 2.4L L4 DK4100L
🇺🇸 US 🇨🇦 CA
Master Kit
Fitment notes — PA CARGO DK4100L
Master Kit
Trans. code F4A42
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Overhaul Kit (Gaskets, Seals, O-Rings & Sealing Rings)

Brand Part Number Markets Notes Buy
PA CARGO Popular Fits: 2.4L L4 K41900J
🇺🇸 US 🇨🇦 CA
Overhaul Kit
Fitment notes — PA CARGO K41900J
Overhaul Kit
Trans. code F4A42
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TRANSTEC Fits: 2.4L L4 81000114
🇺🇸 US 🇨🇦 CA
without PistonsDuraprene Pan Gasket
Fitment notes — TRANSTEC 81000114
without PistonsDuraprene Pan Gasket
Fits:
LXRE4F03A/B/V (Also RL3F03A)4 Speedor EXRE4F03A/B/V (Also RL3F03A)4 Speed
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This table covers the rebuild kits for this assembly.

Shift Solenoid

Brand Part Number Markets Notes Buy
HYUNDAI Fits: 2.4L L4 4631339051
🇺🇸 US
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STANDARD MOTOR PRODUCTS Fits: 2.4L L4 TCS220
🇺🇸 US
Solenoid shift
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WELLS Fits: 2.4L L4 2N1295
🇺🇸 US
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This table covers the Shift solenoids. Typical signs include a harsh or missing shift, or a code for this solenoid circuit. Check resistance and the connector before dropping the pan for a solenoid.

Torque Converter Repair Sleeve

Brand Part Number Markets Notes Buy
BCA Fits: 2.4L L4 NS99157
🇺🇸 US
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NATIONAL Fits: 2.4L L4 99157
🇺🇸 US
with Mitsubishi F4A42 Transmission
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SCHAEFFLER Fits: 2.4L L4 SR3483
🇺🇸 US
Fits Shaft Diameters of 1.572"-1.578"16 MM Width
Fitment notes — SCHAEFFLER SR3483
Fits:
Shaft Diameters of 1.572"-1.578"16 MM Width46.99 mm Outside Diameter
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WJB / INMOTION PARTS Fits: 2.4L L4 WS99157
🇺🇸 US
with Mitsubishi F4A42 Transmission
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This table covers the wear sleeves used to restore a Torque Converter seal surface.

Torque Converter Shaft Seal

Brand Part Number Markets Notes Buy
BCA Fits: 2.4L L4 NS320583
🇺🇸 US
with F4A42 Transmission CodeMitsubishi Transmission
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NATIONAL Fits: 2.4L L4 320583
🇺🇸 US
with Mitsubishi F4A42 Transmission
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SCHAEFFLER Fits: 2.4L L4 SS3759
🇺🇸 US
9 MM Width60.28 mm Outside Diameter
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WJB / INMOTION PARTS Fits: 2.4L L4 WS320583
🇺🇸 US
with Mitsubishi F4A42 Transmission
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This table covers the seals at the Torque Converter Shaft. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.

Transmission Fluid

ATF +4

Brand Part Number Markets Notes Buy
PENTOSIN Fits: 2.4L L4 1058112
🇺🇸 US
ATF441 Liter
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PENTOSIN Fits: 2.4L L4 1058212
🇺🇸 US
ATF445 Liters
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Multi-Vehicle

Brand Part Number Markets Notes Buy
VALVOLINE Popular Fits: 2.4L L4 VV3246
🇺🇸 US
Max Life Multi-Vehicle or Maxlife Multi-Vehicle Full Synthetic ATF1 Quart
Fitment notes — VALVOLINE VV3246
Max Life Multi-Vehicle or Maxlife Multi-Vehicle Full Synthetic ATF1 QuartDEXRON VI, MERCON LV, DEX/MERC
Product Not Applicable For California
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VALVOLINE Popular Fits: 2.4L L4 773775
🇺🇸 US
Max Life Multi-Vehicle or Maxlife Multi-Vehicle Full Synthetic ATF1 Gallon
Fitment notes — VALVOLINE 773775
Max Life Multi-Vehicle or Maxlife Multi-Vehicle Full Synthetic ATF1 Gallon
Product Not Applicable For California
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LUBEGARD Fits: 2.4L L4 69032
🇺🇸 US
1 QuartComplete Full Synthetic ATF Fluid
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VALVOLINE Fits: 2.4L L4 822389
🇺🇸 US
Import Multi-Vehicle ATF1 Quart
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VALVOLINE Fits: 2.4L L4 881051
🇺🇸 US
Maxlife Multi-Vehicle Full Synthetic ATF5 Gallon Bay Box
Fitment notes — VALVOLINE 881051
Maxlife Multi-Vehicle Full Synthetic ATF5 Gallon Bay Box
Product Not Applicable For California
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SP-III (SP3)

Brand Part Number Markets Notes Buy
BECK/ARNLEY Fits: 2.4L L4 2522003
🇺🇸 US
Premium SPIII1 Quart
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SP-IV (SP 4)

Brand Part Number Markets Notes Buy
AISIN Fits: 2.4L L4 ATFSP4
🇺🇸 US
SP41 Quart
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Brand Part Number Markets Notes Buy
VALVOLINE Fits: 2.4L L4 899179
🇺🇸 US
Extended Protection Full Synthetic ATF1 Quart
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This table covers the automatic-transmission fluids specified for this gearbox. Typical signs include harsh or delayed shifts, fluid that smells burnt, or a shudder at light throttle. Use exactly the specification in the notes. Automatic transmissions are unforgiving of the wrong fluid.

Transmission Fluid Additive

Brand Part Number Markets Notes Buy
LUBEGARD Popular Fits: 2.4L L4 19610
🇺🇸 US
Instant Shudder Fixx2 oz
Fitment notes — LUBEGARD 19610
Instant Shudder Fixx2 oz
Automatic trans.
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LUBEGARD Popular Fits: 2.4L L4 60902
🇺🇸 US
Automatic Transmission Fluid Protectant10 oz
Fitment notes — LUBEGARD 60902
Automatic Transmission Fluid Protectant10 oz
Automatic trans.
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ATP Fits: 2.4L L4 AT203
🇺🇸 US
Automatic Transmission Fluid Synthetic Modifier
Fitment notes — ATP AT203
Automatic Transmission Fluid Synthetic Modifier
Automatic trans.
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LUBEGARD Fits: 2.4L L4 19689
🇺🇸 US
Instant Shudder Fixx2 oz
Fitment notes — LUBEGARD 19689
Instant Shudder Fixx2 oz
Automatic trans.
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LUBEGARD Fits: 2.4L L4 61910
🇺🇸 US
10 ozHighly Friction Modified ATF Supplement
Fitment notes — LUBEGARD 61910
10 ozHighly Friction Modified ATF Supplement
Automatic trans.
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LUBEGARD Fits: 2.4L L4 63010
🇺🇸 US
Platinum Universal ATF Protectant10 oz
Fitment notes — LUBEGARD 63010
Platinum Universal ATF Protectant10 oz
Automatic trans.Use with OEM Recommended ATF or as OEM fluid Alternative.
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LUBEGARD Fits: 2.4L L4 63016
🇺🇸 US
Platinum Universal ATF Protectant15 oz
Fitment notes — LUBEGARD 63016
Platinum Universal ATF Protectant15 oz
Automatic trans.Use with OEM Recommended ATF or as OEM fluid Alternative.
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LUBEGARD Fits: 2.4L L4 63032
🇺🇸 US
Platinum Universal ATF Protectant32 oz
Fitment notes — LUBEGARD 63032
Platinum Universal ATF Protectant32 oz
Automatic trans.Use with OEM Recommended ATF or as OEM fluid Alternative.
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This table covers the conditioners and additives used with this transmission fluid.

Transmission Mount

Brand Part Number Markets Notes Buy
DEA / MARMON RIDE CONTROL Popular Fits: 2.4L L4 A7117
🇺🇸 US
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ANCHOR Fits: 2.4L L4 9373
🇺🇸 US
Left UpperAutomatic trans.
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BECK/ARNLEY Fits: 2.4L L4 1041585
🇺🇸 US
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PIONEER Fits: 2.4L L4 627117
🇺🇸 US
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WESTAR Fits: 2.4L L4 EM9373
🇺🇸 US
Automatic trans.
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This table covers the mounts that hold the transmission to the chassis. Typical signs include a clunk on takeoff, a vibration at idle, or a separated rubber insert. Support the powertrain before unbolting a mount, and torque the fasteners in the notes.

Buying Automatic Transmission Parts for a 2005 Kia Optima

On this vehicle, the automatic transmission covers the automatic gearbox and its supporting cast — filters, coolers, solenoids, mounts and torque-converter parts.

  • Match the engine first. Every automatic transmission part here is engine-specific; each row shows which engine(s) it fits.
  • Read the notes on each row for position, trim and spec qualifiers before you order.
  • Where labor overlaps, replace the filter and pan gasket with every fluid service, and flush the cooler lines when replacing a failed unit.
  • Cross-reference the manufacturer part number against your old part or a service-manual listing.

Start with the largest groups on this page: Filter and Transmission Fluid .

Frequently Asked Questions

How many automatic transmission parts fit the 2005 Kia Optima?

Our catalog currently lists 70 automatic transmission parts for the 2005 Kia Optima across 16 subcategories and 28 brands, covering both the 2.4L L4 and the 2.7L V6. Each part is matched to the engine(s) it fits.

Do automatic transmission parts differ between 2005 Kia Optima engines?

Yes. Every automatic transmission part on this page is engine-specific. Each row shows which engine(s) it fits — use the filter at the top to hide the rest. If you're unsure which engine you have, check the emissions label under the hood or the 8th character of your VIN.

What are the signs of automatic transmission problems on a 2005 Kia Optima?

Common symptoms include delayed or harsh engagement, slipping under load, fluid that smells burnt, or shuddering at light throttle around 40 mph. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.

What should I replace at the same time?

Where labor overlaps, replace the filter and pan gasket with every fluid service, and flush the cooler lines when replacing a failed unit.

What do the market flags (US, CA, MX) on each part mean?

They show the market for which the manufacturer published application data for that part — where the vehicle was first sold, not where the part was made. If your 2005 Kia Optima was originally sold in the US, the safest choice is a part marked for the US market.

How do I make sure a part fits my 2005 Kia Optima?

First match the engine — each row shows which engine(s) the part fits. Then use exactly the fluid specification in the notes — automatic transmissions are the least forgiving component on the vehicle about fluid choice. The notes column carries position and trim qualifiers where they apply.

Other Parts for the 2005 Kia Optima

Automatic Transmission Parts for Other Kia Optima Years

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Manufacturer names, model designations and part numbers are used for identification and fitment reference only. AutoFactsDB is an independent catalog and is not affiliated with, endorsed by, or sponsored by any vehicle manufacturer displayed on this page.