The 2011 Kia Optima has 70 automatic transmission parts with verified fitment on this page — 18 part types and 32 brands, covering all 3 engine options (2.0L L4 Turbocharged, 2.4L L4 and 2.4L L4 ELECTRIC/GAS). Each part includes a manufacturer part number and application notes.
On the 2011 Kia Optima, the automatic transmission covers the automatic gearbox and its supporting cast — filters, coolers, solenoids, mounts and torque-converter parts. Most of the listed parts are Transmission Fluid (14 parts), Output Shaft Seal (9 parts) and Transmission Fluid Additive (8 parts). The other 15 part types cover the remaining 39 parts.
The 2011 Kia Optima was sold with 3 engines. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
The most listed brands for 2011 Kia Optima automatic transmission parts are LUBEGARD (9 parts), HYUNDAI (5 parts) and NATIONAL (5 parts), plus 29 more brands. Quality grades include Standard Replacement, Multi-Vehicle and Economy.
11 parts on this 2011 Kia Optima page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including ATP B458 (Filter) and NATIONAL 711015 (Output Shaft Seal). Click any part number to see every vehicle that part fits.
Filter
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VARIOUS MFR Fits: 2.4L L4 ELECTRIC/GAS | PT1290 | 🇺🇸 US | Spin-on | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ATP Popular Fits: 2.4L L4 ELECTRIC/GAS | B458 | 🇺🇸 US | Premium Replacement | View on Amazon |
| VAICO Popular Fits: 2.4L L4 ELECTRIC/GAS | V520326 | 🇺🇸 US | with gasketHydraulic Filter Set | View on Amazon |
| ATP Fits: 2.4L L4 ELECTRIC/GAS | B534 | 🇺🇸 US | View on Amazon | |
| BECK/ARNLEY Fits: 2.4L L4 ELECTRIC/GAS | 0440432 | 🇺🇸 US | View on Amazon | |
| VAICO Fits: 2.4L L4 ELECTRIC/GAS | V520296 | 🇺🇸 US | From 02/08/2010 | View on Amazon |
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.
6 Filter parts for the 2011 Kia Optima come from 4 brands — ATP, VAICO, VARIOUS MFR and 1 other brand. The "Popular" part is ATP B458.
The Economy section lists 1 option from VARIOUS MFR — the catalog's value-priced group. VARIOUS MFR PT1290 is listed in this group.
In the Standard Replacement grade, ATP, VAICO and BECK/ARNLEY supply 5 parts: built to original-equipment specification. A representative part number is ATP B458.
This group includes ATP B458, VARIOUS MFR PT1290 and VAICO V520326 and the remaining parts above.
Fluid Cooler Line / Hose
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SUNSONG Fits: 2.4L L4 ELECTRIC/GAS | 5802164 | 🇺🇸 US | OutletAt Radiator | View on Amazon |
This table covers the Fluid Cooler Line hoses. Typical signs include swelling, cracks, a soft spot, or a leak at a clamp. Replace adjacent aged hoses while the system is drained — they share the same heat cycle.
This group shows a single part: SUNSONG 5802164.
Fluid Pan
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HYUNDAI Fits: 2.4L L4 ELECTRIC/GAS | 452803B811 | 🇺🇸 US | Side cover | View on Amazon |
This table covers the pans that hold automatic-transmission fluid.
One part is listed for the 2011 Kia Optima — HYUNDAI 452803B811.
Fluid Pan Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ATP Fits: 2.4L L4 ELECTRIC/GAS | NG55 | 🇺🇸 US | View on Amazon |
This table covers the gaskets that seal the Fluid Pan. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for.
This group shows a single part: ATP NG55.
Fluid Pump
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HYUNDAI Fits: 2.4L L4 ELECTRIC/GAS | 461203D000 | 🇺🇸 US | View on Amazon | |
| HYUNDAI Fits: 2.4L L4 ELECTRIC/GAS | 461203D001 | 🇺🇸 US | Electric oil pump | View on Amazon |
| KIA Fits: 2.4L L4 ELECTRIC/GAS | 461203D001 | 🇺🇸 US | Electric oil pump | View on Amazon |
This table covers the Fluid pumps. Typical signs include noise from the pump, no pressure, or fluid that never arrives at the outlet. Prime or fill the pump as the notes require. A dry start is a common way to kill a new unit.
3 Fluid Pump parts for the 2011 Kia Optima come from 2 brands — HYUNDAI and KIA.
This group includes HYUNDAI 461203D000 and HYUNDAI 461203D001 and the remaining parts above.
Fluid Pump Bushing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DURA-BOND Fits: 2.4L L4 ELECTRIC/GAS | MIT21T | 🇺🇸 US | Coated | View on Amazon |
This table covers the Fluid Pump bushings. Typical signs include a clunk over bumps, or a torn or walked-out bushing you can see. Press the new bushing square. A cocked bushing will tear in a few thousand miles.
This group shows a single part: DURA-BOND MIT21T.
Fluid Pump Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SKF Fits: 2.4L L4 ELECTRIC/GAS | 16940 | 🇺🇸 US | Front | View on Amazon |
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.
One part is listed for the 2011 Kia Optima — SKF 16940.
Fluid Temperature Sensor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GPD Fits: 2.4L L4 ELECTRIC/GAS | 1814541 | 🇺🇸 US | View on Amazon | |
| STANDARD MOTOR PRODUCTS Fits: 2.4L L4 ELECTRIC/GAS | TX300 | 🇺🇸 US | View on Amazon | |
| ULTRA-POWER Fits: 2.4L L4 ELECTRIC/GAS | 5S7693 | 🇺🇸 US 🇨🇦 CA | Fits SENDER | View on Amazon |
| WELLS Fits: 2.4L L4 ELECTRIC/GAS | 5S15269 | 🇺🇸 US | View on Amazon |
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.
4 Fluid Temperature Sensor parts for the 2011 Kia Optima come from 4 brands — GPD, STANDARD MOTOR PRODUCTS, ULTRA-POWER and 1 other brand.
Part numbers include GPD 1814541, STANDARD MOTOR PRODUCTS TX300 and ULTRA-POWER 5S7693, among others listed above.
Manual Shaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NATIONAL Fits: 2.4L L4 ELECTRIC/GAS | 711014 | 🇺🇸 US | Mitsubishi Trans. | View on Amazon |
| WJB / INMOTION PARTS Fits: 2.4L L4 ELECTRIC/GAS | WS711014 | 🇺🇸 US | Mitsubishi Trans. | View on Amazon |
This table covers the seals at the Manual 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.
2 Manual Shaft Seal parts are listed for the 2011 Kia Optima, from NATIONAL and WJB / INMOTION PARTS.
Part numbers include NATIONAL 711014 and WJB / INMOTION PARTS WS711014.
Output Shaft Repair Sleeve
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BCA Fits: 2.4L L4 ELECTRIC/GAS | NS99145 | 🇺🇸 US | Fits Right | View on Amazon |
| NATIONAL Fits: 2.4L L4 ELECTRIC/GAS | 99145 | 🇺🇸 US | Fits LeftMitsubishi trans.or Right | View on Amazon |
| WJB / INMOTION PARTS Fits: 2.4L L4 ELECTRIC/GAS | WS99145 | 🇺🇸 US | Fits LeftMitsubishi trans.or Right | View on Amazon |
This table covers the wear sleeves used to restore a Output Shaft seal surface.
3 Output Shaft Repair Sleeve parts for the 2011 Kia Optima come from 3 brands — BCA, NATIONAL and WJB / INMOTION PARTS.
Part numbers include BCA NS99145, NATIONAL 99145 and WJB / INMOTION PARTS WS99145.
Output Shaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NATIONAL Popular Fits: 2.4L L4 ELECTRIC/GAS | 711015 | 🇺🇸 US | LeftMitsubishi trans. | View on Amazon |
| NATIONAL Popular Fits: 2.4L L4 ELECTRIC/GAS | 711018 | 🇺🇸 US | RightMitsubishi trans. | View on Amazon |
| HYUNDAI Fits: 2.4L L4 ELECTRIC/GAS | 4311939020 | 🇺🇸 US | View on Amazon | |
| SKF Fits: 2.4L L4 ELECTRIC/GAS | 15744 | 🇺🇸 US | Left | View on Amazon |
| SKF Fits: 2.4L L4 ELECTRIC/GAS | 15784 | 🇺🇸 US | Right | View on Amazon |
| TIMKEN Fits: 2.4L L4 ELECTRIC/GAS | 15784 | 🇺🇸 US | Right | View on Amazon |
| TIMKEN Fits: 2.4L L4 ELECTRIC/GAS | 6336S | 🇺🇸 US | Left | View on Amazon |
| WJB / INMOTION PARTS Fits: 2.4L L4 ELECTRIC/GAS | WS711018 | 🇺🇸 US | RightMitsubishi trans. | View on Amazon |
| WJB / INMOTION PARTS Fits: 2.4L L4 ELECTRIC/GAS | WS711015 | 🇺🇸 US | LeftMitsubishi trans. | View on Amazon |
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.
9 Output Shaft Seal parts for the 2011 Kia Optima come from 5 brands — NATIONAL, SKF, TIMKEN and 2 other brands. The "Popular" part is NATIONAL 711015.
This group includes NATIONAL 711015, NATIONAL 711018 and HYUNDAI 4311939020 and the remaining parts above.
Pressure Control (EPC) Solenoid
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS Fits: 2.4L L4 ELECTRIC/GAS | 2N1275 | 🇺🇸 US | View on Amazon |
This table covers the Pressure Control (EPC) 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.
This group shows a single part: WELLS 2N1275.
Shift Solenoid
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACKOJA Fits: 2.4L L4 ELECTRIC/GAS | A52770022 | 🇺🇸 US | with OE No. 463133B030 | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 2.4L L4 ELECTRIC/GAS | TCS200 | 🇺🇸 US | Solenoid A | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 2.4L L4 ELECTRIC/GAS | TCS289 | 🇺🇸 US | Solenoid shift | View on Amazon |
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.
3 Shift Solenoid parts are listed for the 2011 Kia Optima, from STANDARD MOTOR PRODUCTS and ACKOJA.
Listed part numbers: ACKOJA A52770022, STANDARD MOTOR PRODUCTS TCS200 and STANDARD MOTOR PRODUCTS TCS289.
Torque Converter Shaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NATIONAL Popular Fits: 2.4L L4 ELECTRIC/GAS | 710615 | 🇺🇸 US | Mitsubishi Trans. | View on Amazon |
| BCA Fits: 2.4L L4 ELECTRIC/GAS | NS710615 | 🇺🇸 US | View on Amazon | |
| JAPANESE OE Fits: 2.4L L4 ELECTRIC/GAS | 9031143004 | 🇺🇸 US | Nippon Reinz | View on Amazon |
| SCHAEFFLER Fits: 2.4L L4 ELECTRIC/GAS | SS5585 | 🇺🇸 US | 2.37" O.D. X 0.28" Width | View on Amazon |
| WJB / INMOTION PARTS Fits: 2.4L L4 ELECTRIC/GAS | WS710615 | 🇺🇸 US | Mitsubishi Trans. | View on Amazon |
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.
5 Torque Converter Shaft Seal parts are listed for the 2011 Kia Optima, from NATIONAL, BCA, JAPANESE OE and 2 other brands. NATIONAL 710615 carries the "Popular" badge.
Part numbers include NATIONAL 710615, BCA NS710615 and JAPANESE OE 9031143004, among others listed above.
Transmission Fluid
ATF 64
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PENTOSIN Fits: 2.4L L4 ELECTRIC/GAS | 1058113 | 🇺🇸 US | 1 LiterATF64 or ATF44 | View on Amazon |
| PENTOSIN Fits: 2.4L L4 ELECTRIC/GAS | 1058215 | 🇺🇸 US | 5 LitersATF64 or ATF44 | View on Amazon |
Dexron
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular Fits: 2.4L L4 ELECTRIC/GAS | 109243 | 🇺🇸 US | Container Type: Plastic Container | View on Amazon |
Multi-Vehicle
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOBIL Popular Fits: 2.4L L4 ELECTRIC/GAS | 126505 | 🇺🇸 US | Multi-Vehicle ATF | View on Amazon |
| VALVOLINE Popular Fits: 2.4L L4 ELECTRIC/GAS | VV3246 | 🇺🇸 US | Max Life Multi-Vehicle or Maxlife Multi-Vehicle Full Synthetic ATF1 Quart | View on Amazon |
| LIQUI MOLY Fits: 2.4L L4 ELECTRIC/GAS | 20032 | 🇺🇸 US | Top Tec ATF 18001 Liter | View on Amazon |
| LIQUI MOLY Fits: 2.4L L4 ELECTRIC/GAS | 22036 | 🇺🇸 US | Top Tec ATF 18005 Liter | View on Amazon |
| LIQUI MOLY Fits: 2.4L L4 ELECTRIC/GAS | 20034 | 🇺🇸 US | Top TEC ATF 180020 Liter | View on Amazon |
| LUBEGARD Fits: 2.4L L4 ELECTRIC/GAS | 69032 | 🇺🇸 US | 1 QuartComplete Full Synthetic ATF Fluid | View on Amazon |
| VALVOLINE Fits: 2.4L L4 ELECTRIC/GAS | 773775 | 🇺🇸 US | Max Life Multi-Vehicle or Maxlife Multi-Vehicle Full Synthetic ATF1 Gallon | View on Amazon |
| VALVOLINE Fits: 2.4L L4 ELECTRIC/GAS | 881051 | 🇺🇸 US | Maxlife Multi-Vehicle Full Synthetic ATF5 Gallon Bay Box | View on Amazon |
SP-IV (SP 4)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AISIN Fits: 2.4L L4 ELECTRIC/GAS | ATFSP4 | 🇺🇸 US | SP41 Quart | View on Amazon |
ZF Fluid
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ZF Fits: 2.4L L4 ELECTRIC/GAS | 5961308625 | 🇺🇸 US | Includes: 1 L Bottle | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Fits: 2.4L L4 ELECTRIC/GAS | 899179 | 🇺🇸 US | Extended Protection Full Synthetic ATF1 Quart | View on Amazon |
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.
14 Transmission Fluid parts for the 2011 Kia Optima come from 8 brands — VALVOLINE, LIQUI MOLY, PENTOSIN and 5 other brands. The "Popular" part is ACDELCO 109243.
In the ATF 64 grade, PENTOSIN supplies 2 parts: grouped under the catalog's "ATF 64" designation — the notes column spells out what sets them apart. A representative part number is PENTOSIN 1058113.
The Dexron section lists 1 option from ACDELCO — grouped under the catalog's "Dexron" designation — the notes column spells out what sets them apart. ACDELCO 109243 is listed in this group.
The Multi-Vehicle section lists 8 options from VALVOLINE, LIQUI MOLY, MOBIL and 1 other brand — grouped under the catalog's "Multi-Vehicle" designation — the notes column spells out what sets them apart. MOBIL 126505 is listed in this group.
In the SP-IV (SP 4) grade, AISIN supplies 1 part: grouped under the catalog's "SP-IV (SP 4)" designation — the notes column spells out what sets them apart. A representative part number is AISIN ATFSP4.
The ZF Fluid section lists 1 option from ZF — grouped under the catalog's "ZF Fluid" designation — the notes column spells out what sets them apart. ZF 5961308625 is listed in this group.
1 further part sits outside the graded sections, with the same engine-level match.
Transmission Fluid Additive
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| LUBEGARD Popular Fits: 2.4L L4 ELECTRIC/GAS | 19610 | 🇺🇸 US | Instant Shudder Fixx2 oz | View on Amazon |
| LUBEGARD Popular Fits: 2.4L L4 ELECTRIC/GAS | 60902 | 🇺🇸 US | Automatic Transmission Fluid Protectant10 oz | View on Amazon |
| LUBEGARD Fits: 2.4L L4 ELECTRIC/GAS | 19689 | 🇺🇸 US | Instant Shudder Fixx2 oz | View on Amazon |
| LUBEGARD Fits: 2.4L L4 ELECTRIC/GAS | 61910 | 🇺🇸 US | 10 ozHighly Friction Modified ATF Supplement | View on Amazon |
| LUBEGARD Fits: 2.4L L4 ELECTRIC/GAS | 63010 | 🇺🇸 US | Platinum Universal ATF Protectant10 oz | View on Amazon |
| LUBEGARD Fits: 2.4L L4 ELECTRIC/GAS | 63016 | 🇺🇸 US | Platinum Universal ATF Protectant15 oz | View on Amazon |
| LUBEGARD Fits: 2.4L L4 ELECTRIC/GAS | 98010 | 🇺🇸 US | Use with Original Equipment Manufacturer Recommended Automatic Transmission Fluid 2 Pack 10 Ounces Each or 32 oz. BottleHigh-Performance Original Equipment Manufacturer Fluid Alternative/Protectant | View on Amazon |
| LUBEGARD Fits: 2.4L L4 ELECTRIC/GAS | 63032 | 🇺🇸 US | Platinum Universal ATF Protectant32 oz | View on Amazon |
This table covers the conditioners and additives used with this transmission fluid.
8 Transmission Fluid Additive parts for the 2011 Kia Optima come from LUBEGARD. The "Popular" part is LUBEGARD 19610.
Listed part numbers: LUBEGARD 19610, LUBEGARD 60902 and LUBEGARD 19689, plus the other parts above.
Transmission Mount
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SKP Popular Fits: 2.4L L4 ELECTRIC/GAS | SKM9755 | 🇺🇸 US | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ANCHOR Fits: 2.4L L4 ELECTRIC/GAS | 9755 | 🇺🇸 US | Leftwith Base Notch | View on Amazon |
| DEA / MARMON RIDE CONTROL Fits: 2.4L L4 ELECTRIC/GAS | A7197 | 🇺🇸 US | Rear | View on Amazon |
| HYUNDAI Fits: 2.4L L4 ELECTRIC/GAS | 218303Q750 | 🇺🇸 US | with Sport Suspension | View on Amazon |
| WESTAR Fits: 2.4L L4 ELECTRIC/GAS | EM5996 | 🇺🇸 US | View on Amazon |
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.
5 Transmission Mount parts are listed for the 2011 Kia Optima, from SKP, ANCHOR, DEA / MARMON RIDE CONTROL and 2 other brands. SKP SKM9755 carries the "Popular" badge.
Economy: 1 part, from SKP. A representative part number is SKP SKM9755.
The Standard Replacement section: 4 options from ANCHOR, DEA / MARMON RIDE CONTROL, HYUNDAI and 1 other brand. ANCHOR 9755 is listed in this group.
This group includes SKP SKM9755, ANCHOR 9755 and DEA / MARMON RIDE CONTROL A7197 and the remaining parts above.
Transmission Service Kit
Expert Kit (Basic Kit & Transmission Fluid)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VAICO Fits: 2.4L L4 ELECTRIC/GAS | V520470 | 🇺🇸 US | Oil Pan with Gasket, Transmission Oil (6HP 7 L), Instl Hardware | View on Amazon |
Expert Kit + (Expert Kit and Extra Oil for Rinsing)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VAICO Fits: 2.4L L4 ELECTRIC/GAS | V520470XXL | 🇺🇸 US | Oil Pan with Gasket, Transmission Oil (6HP 12 L), Instl Hardware | View on Amazon |
This table covers the Transmission service kits.
VAICO supplies both parts for the 2011 Kia Optima.
The Expert Kit (Basic Kit & Transmission Fluid) section lists 1 option from VAICO — grouped under the catalog's "Expert Kit (Basic Kit & Transmission Fluid)" designation — the notes column spells out what sets them apart. VAICO V520470 is listed in this group.
In the Expert Kit + (Expert Kit and Extra Oil for Rinsing) grade, VAICO supplies 1 part: grouped under the catalog's "Expert Kit + (Expert Kit and Extra Oil for Rinsing)" designation — the notes column spells out what sets them apart. A representative part number is VAICO V520470XXL.
This group includes VAICO V520470 and VAICO V520470XXL.
Buying Automatic Transmission Parts for a 2011 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: Transmission Fluid and Output Shaft Seal .
Frequently Asked Questions
How many automatic transmission parts fit the 2011 Kia Optima?
Our catalog currently lists 70 automatic transmission parts for the 2011 Kia Optima across 18 subcategories and 32 brands, covering all 3 engine options (2.0L L4 Turbocharged, 2.4L L4 and 2.4L L4 ELECTRIC/GAS). Each part is matched to the engine(s) it fits.
Do automatic transmission parts differ between 2011 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 2011 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 2011 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 2011 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 2011 Kia Optima
Automatic Transmission Parts for Other Kia Optima Years
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