The 2014 Kia Optima has 25 drivetrain parts with verified fitment on this page — 4 part types and 10 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 2014 Kia Optima, the drivetrain system moves power from transmission to wheels through axles, CV joints, driveshafts, differentials and wheel-end hardware. 24 parts of the 25 listed are CV Axle (21 parts), CV Joint Boot (2 parts) and CV Joint (1 part). The other 1 part type covers the remaining 1 part.
The 2014 Kia Optima was sold with 3 engines. 1 part fits every engine; the other 24 are engine-specific. Each part shows which engine(s) it fits.
10 brands supply drivetrain parts for the 2014 Kia Optima, led by GSP (6 parts), TRAKMOTIVE (6 parts) and TOP NOTCH (5 parts), plus 7 more brands. Quality grades include Standard Replacement and Economy.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2014 Kia Optima. 6 parts have it, including TOP NOTCH TN60038 (CV Axle) and TOP NOTCH TN60039 (CV Axle). Each part number opens a page with every vehicle that part fits.
CV Axle
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AUTO EXTRA Fits: 2.4L L4 ELECTRIC/GAS | HY88707A | 🇺🇸 US 🇨🇦 CA | Front RightOE# 495014R250 | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TOP NOTCH Popular Fits: 2.4L L4 ELECTRIC/GAS | TN60038 | 🇺🇸 US 🇨🇦 CA | Front Left | View on Amazon |
| TOP NOTCH Popular Fits: 2.4L L4 ELECTRIC/GAS | TN60039 | 🇺🇸 US 🇨🇦 CA | Front Right | View on Amazon |
| CARDONE Fits: 2.4L L4 ELECTRIC/GAS | 663827 | 🇺🇸 US 🇨🇦 CA | Front Right | View on Amazon |
| GSP Fits: 2.4L L4 ELECTRIC/GAS | NCV37069 | 🇺🇸 US 🇨🇦 CA | Front Left | View on Amazon |
| GSP Fits: 2.4L L4 ELECTRIC/GAS | NCV37070 | 🇺🇸 US 🇨🇦 CA | Front Right | View on Amazon |
| TRAKMOTIVE Fits: 2.4L L4 ELECTRIC/GAS | HY8226 | 🇺🇸 US 🇨🇦 CA | Front LeftVIN D | View on Amazon |
| TRAKMOTIVE Fits: 2.4L L4 ELECTRIC/GAS | HY8233 | 🇺🇸 US 🇨🇦 CA | Front RightVIN D | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| APWI Popular Fits: 2.0L L4 Turbocharged | HY8423A | 🇺🇸 US 🇨🇦 CA | Front Right | View on Amazon |
| APWI Popular Fits: 2.4L L4 | KA8029A | 🇺🇸 US 🇨🇦 CA | Front Right | View on Amazon |
| TOP NOTCH Popular Fits: 2.0L L4 Turbocharged | TN60219 | 🇺🇸 US 🇨🇦 CA | Front Left | View on Amazon |
| TOP NOTCH Popular Fits: 2.4L L4 | TN60216 | 🇺🇸 US 🇨🇦 CA | Front LeftEX Model or LX Model or SX Model | View on Amazon |
| GSP Fits: 2.0L L4 Turbocharged | NCV37093 | 🇺🇸 US 🇨🇦 CA | Front Left | View on Amazon |
| GSP Fits: 2.0L L4 Turbocharged | NCV37092 | 🇺🇸 US 🇨🇦 CA | Front Right | View on Amazon |
| GSP Fits: 2.4L L4 | NCV37078 | 🇺🇸 US 🇨🇦 CA | Front LeftEX Model or LX Model or SX Model | View on Amazon |
| GSP Fits: 2.4L L4 | NCV75090 | 🇺🇸 US 🇨🇦 CA | Front Right | View on Amazon |
| TOP NOTCH Fits: 2.0L L4 Turbocharged | TN60218 | 🇺🇸 US 🇨🇦 CA | Front Right | View on Amazon |
| TRAKMOTIVE Fits: 2.0L L4 Turbocharged | KA8123 | 🇺🇸 US 🇨🇦 CA | AAR Joint Design | View on Amazon |
| TRAKMOTIVE Fits: 2.0L L4 Turbocharged | HY8242 | 🇺🇸 US 🇨🇦 CA | Front RightVIN 6 (8th digit) | View on Amazon |
| TRAKMOTIVE Fits: 2.4L L4 | KA8096 | 🇺🇸 US 🇨🇦 CA | Front LeftVIN 7 (8th Digit) | View on Amazon |
| TRAKMOTIVE Fits: 2.4L L4 | KA8111 | 🇺🇸 US | Front Right | View on Amazon |
This table covers the complete CV axle shafts from differential (or hub) to wheel. Typical signs include a click in tight turns, grease flung around the wheel well, or a vibration that builds with speed. A torn boot caught early is a boot kit; caught late it is the whole axle. Torque the axle nut to the method in the notes.
21 CV Axle parts are listed for the 2014 Kia Optima, from GSP, TRAKMOTIVE, TOP NOTCH and 3 other brands. TOP NOTCH TN60038 carries the "Popular" badge.
In the Economy grade, AUTO EXTRA supplies 1 part: the catalog's value-priced group. A representative part number is AUTO EXTRA HY88707A.
The Standard Replacement section lists 7 options from TOP NOTCH, GSP, TRAKMOTIVE and 1 other brand — built to original-equipment specification. TOP NOTCH TN60038 is listed in this group.
13 ungrouped parts are not assigned to a grade, with the same engine-level match.
CV Joint
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACKOJA Fits: 2.4L L4 | A539916 | 🇺🇸 US 🇨🇦 CA | Fits Front Right Inner | View on Amazon |
This table covers the constant-velocity joints at each end of a drive axle.
One part is listed for the 2014 Kia Optima — ACKOJA A539916.
CV Joint Boot
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BECK/ARNLEY Fits: all 2014 Optima engines | 1032489 | 🇺🇸 US 🇨🇦 CA | Front Inner | View on Amazon |
| MEVOTECH Fits: 2.0L L4 Turbocharged | DX773 | 🇺🇸 US 🇨🇦 CA | Front Inner | View on Amazon |
This table covers the boots that keep grease in a CV joint. Typical signs include a split boot, grease flung around the joint, or a click once grit is inside. A boot caught early is a kit. Once the joint has clicked, the joint itself is usually worn.
2 CV Joint Boot parts are listed for the 2014 Kia Optima, from BECK/ARNLEY and MEVOTECH. 1 part fits every engine; the other 1 is engine-specific.
Listed part numbers: BECK/ARNLEY 1032489 and MEVOTECH DX773.
Gear Oil
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| IDEMITSU Fits: 2.4L L4 | 30305024750 | 🇺🇸 US | 75W90 Racing Gear Oil1 Quart | View on Amazon |
This table covers the gear oils specified for the axle or transfer case. Typical signs include a low-oil lamp, knocking, or oil that has gone thin before the next interval. Match the viscosity and spec in the notes, not just the weight on the bottle.
One part is listed for the 2014 Kia Optima — IDEMITSU 30305024750.
Buying Drivetrain Parts for a 2014 Kia Optima
On this vehicle, the drivetrain system moves power from transmission to wheels through axles, CV joints, driveshafts, differentials and wheel-end hardware.
- Match the engine first. Some drivetrain parts fit every engine; others are 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 differential or transfer-case fluid with any axle or seal job while everything is already open.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: CV Axle and CV Joint Boot .
Frequently Asked Questions
How many drivetrain parts fit the 2014 Kia Optima?
Our catalog currently lists 25 drivetrain parts for the 2014 Kia Optima across 4 subcategories and 10 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 drivetrain parts differ between 2014 Kia Optima engines?
Some do. 1 part fits every engine; the other 24 are engine-specific. Each row (and the filter at the top) shows which. 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 drivetrain problems on a 2014 Kia Optima?
Common symptoms include clicking in tight turns, a clunk when shifting between drive and reverse, vibration that builds with speed, or gear oil on the inside of a wheel. 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 differential or transfer-case fluid with any axle or seal job while everything is already open.
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 2014 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 2014 Kia Optima?
First match the engine — each row shows which engine(s) the part fits. Then a torn CV boot caught early is a cheap boot kit; caught late it is a whole axle — inspect before deciding which to buy. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2014 Kia Optima
Drivetrain 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.