The 2018 Toyota Avalon has 30 drivetrain parts with verified fitment on this page — 4 part types and 11 brands, covering all 3 engine options (2.5L L4, 2.5L L4 ELECTRIC/GAS and 3.5L V6). Each part includes a manufacturer part number and application notes.
On the 2018 Toyota Avalon, the drivetrain system moves power from transmission to wheels through axles, CV joints, driveshafts, differentials and wheel-end hardware. 26 parts of the 30 listed are CV Axle (13 parts), CV Joint Boot (8 parts) and CV Axle Support Bearing Bracket (5 parts). The other 1 part type covers the remaining 4 parts.
The 2018 Toyota Avalon was sold with 3 engines. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
11 brands supply drivetrain parts for the 2018 Toyota Avalon, led by GSP (6 parts), TRAKMOTIVE (6 parts) and BECK/ARNLEY (4 parts), plus 8 more brands. Quality grades include Standard Replacement and Economy.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2018 Toyota Avalon. 4 parts have it, including APWI TO8394A (CV Axle) and APWI TO8377A (CV Axle). Each part number opens a page with every vehicle that part fits.
CV Axle
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| APWI Popular Fits: 2.5L L4 ELECTRIC/GAS | TO8394A | 🇺🇸 US | Front Left | View on Amazon |
| APWI Popular Fits: 2.5L L4 ELECTRIC/GAS | TO8377A | 🇺🇸 US | Front Right | View on Amazon |
| GSP Popular Fits: 3.5L V6 | NCV69582 | 🇺🇸 US 🇨🇦 CA | Front Right | View on Amazon |
| TOP NOTCH Popular Fits: 3.5L V6 | TN18079 | 🇺🇸 US 🇨🇦 CA | Front Right | View on Amazon |
| APWI Fits: 3.5L V6 | TO8345A | 🇺🇸 US 🇨🇦 CA | Front Left | View on Amazon |
| GSP Fits: 2.5L L4 ELECTRIC/GAS | NCV69057 | 🇺🇸 US | Front Left | View on Amazon |
| GSP Fits: 2.5L L4 ELECTRIC/GAS | NCV69058 | 🇺🇸 US | Front Right | View on Amazon |
| GSP Fits: 3.5L V6 | NCV69453 | 🇺🇸 US 🇨🇦 CA | Front LeftFrom 07/2007 | View on Amazon |
| TOP NOTCH Fits: 3.5L V6 | TN18063 | 🇺🇸 US 🇨🇦 CA | Front LeftFrom 07/2007 | View on Amazon |
| TRAKMOTIVE Fits: 2.5L L4 ELECTRIC/GAS | TO8303 | 🇺🇸 US | Front Left | View on Amazon |
| TRAKMOTIVE Fits: 2.5L L4 ELECTRIC/GAS | TO8300 | 🇺🇸 US | Front Right | View on Amazon |
| TRAKMOTIVE Fits: 3.5L V6 | TO8415 | 🇺🇸 US 🇨🇦 CA | AAR Joint Design | View on Amazon |
| TRAKMOTIVE Fits: 3.5L V6 | TO8377 | 🇺🇸 US 🇨🇦 CA | Front Left | 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.
13 CV Axle parts are listed for the 2018 Toyota Avalon, from GSP, TRAKMOTIVE, APWI and 1 other brand. APWI TO8394A carries the "Popular" badge.
CV Axle Support Bearing Bracket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: 3.5L V6 | 926193 | 🇺🇸 US 🇨🇦 CA | Right | View on Amazon |
| GSP Fits: 3.5L V6 | NB1004 | 🇺🇸 US 🇨🇦 CA | CV Carrier Bearing Bracket | View on Amazon |
| TOP NOTCH Fits: 3.5L V6 | TN18087CB | 🇺🇸 US 🇨🇦 CA | Right | View on Amazon |
| TRAKMOTIVE Fits: 2.5L L4 ELECTRIC/GAS | TO5002 | 🇺🇸 US | Right | View on Amazon |
| TRAKMOTIVE Fits: 3.5L V6 | TO5005 | 🇺🇸 US 🇨🇦 CA | Right | View on Amazon |
This table covers the brackets that mount the CV Axle Support Bearing. Typical signs include a cracked mount, a rattle, or a bracket that no longer holds alignment. Confirm position in the notes. Many brackets look alike and bolt to different corners.
5 CV Axle Support Bearing Bracket parts for the 2018 Toyota Avalon come from 4 brands — TRAKMOTIVE, DORMAN, GSP and 1 other brand.
This group includes DORMAN 926193, GSP NB1004 and TOP NOTCH TN18087CB and the remaining parts above.
CV Joint Boot
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACKOJA Fits: 3.5L V6 | A709836 | 🇺🇸 US 🇨🇦 CA | Front Left Innerwith OE No. 0443808130 | View on Amazon |
| BECK/ARNLEY Fits: 2.5L L4 ELECTRIC/GAS | 1032882 | 🇺🇸 US | Front Outer | View on Amazon |
| BECK/ARNLEY Fits: 2.5L L4 ELECTRIC/GAS | 1033105 | 🇺🇸 US | Front Inner | View on Amazon |
| BECK/ARNLEY Fits: 3.5L V6 | 1033173 | 🇺🇸 US 🇨🇦 CA | Front Inner | View on Amazon |
| BECK/ARNLEY Fits: 3.5L V6 | 1032867 | 🇺🇸 US 🇨🇦 CA | Front Outer | View on Amazon |
| MEVOTECH Fits: 2.5L L4 ELECTRIC/GAS | DX633 | 🇺🇸 US | Front Outer | View on Amazon |
| MEVOTECH Fits: 2.5L L4 ELECTRIC/GAS | DX589 | 🇺🇸 US | Front Inner | View on Amazon |
| MEVOTECH Fits: 3.5L V6 | DX877 | 🇺🇸 US 🇨🇦 CA | Front Outer | 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.
8 CV Joint Boot parts are listed for the 2018 Toyota Avalon, from BECK/ARNLEY, MEVOTECH and ACKOJA.
This group includes ACKOJA A709836, BECK/ARNLEY 1032882 and BECK/ARNLEY 1033105 and the remaining parts above.
Differential Carrier Bearing / Race
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WJB / INMOTION PARTS Fits: 3.5L V6 | WT30210 | 🇺🇸 US 🇨🇦 CA | LeftToyota trans. | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BCA Fits: 3.5L V6 | NB30210 | 🇺🇸 US 🇨🇦 CA | LeftAutomatic trans. | View on Amazon |
| GSP Fits: 3.5L V6 | 691210 | 🇨🇦 CA | Rear Left | View on Amazon |
| NATIONAL Fits: 3.5L V6 | 30210 | 🇺🇸 US 🇨🇦 CA | LeftToyota trans. | View on Amazon |
This table covers the bearings and races that support the differential carrier.
4 Differential Carrier Bearing / Race parts are listed for the 2018 Toyota Avalon, from WJB / INMOTION PARTS, BCA, GSP and 1 other brand.
In the Economy grade, WJB / INMOTION PARTS supplies 1 part: the catalog's value-priced group. A representative part number is WJB / INMOTION PARTS WT30210.
The Standard Replacement section lists 3 options from BCA, GSP and NATIONAL — built to original-equipment specification. BCA NB30210 is listed in this group.
Listed part numbers: WJB / INMOTION PARTS WT30210, BCA NB30210 and GSP 691210, plus the other parts above.
Buying Drivetrain Parts for a 2018 Toyota Avalon
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. Every drivetrain 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 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 2018 Toyota Avalon?
Our catalog currently lists 30 drivetrain parts for the 2018 Toyota Avalon across 4 subcategories and 11 brands, covering all 3 engine options (2.5L L4, 2.5L L4 ELECTRIC/GAS and 3.5L V6). Each part is matched to the engine(s) it fits.
Do drivetrain parts differ between 2018 Toyota Avalon engines?
Yes. Every drivetrain 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 drivetrain problems on a 2018 Toyota Avalon?
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 2018 Toyota Avalon 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 2018 Toyota Avalon?
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 2018 Toyota Avalon
Drivetrain Parts for Other Toyota Avalon 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.