117 Automatic transmission parts are listed for the 2018 Toyota Avalon, in 26 part types, covering all 3 engine options (2.5L L4, 2.5L L4 ELECTRIC/GAS and 3.5L V6). Each one has a brand, a manufacturer part number and notes that say where it fits.
On the 2018 Toyota Avalon, the automatic transmission covers the automatic gearbox and its supporting cast — filters, coolers, solenoids, mounts and torque-converter parts. 45 parts of the 117 listed are Transmission Fluid (20 parts), Output Shaft Seal (15 parts) and Output Shaft Repair Sleeve (10 parts). The other 23 part types cover the remaining 72 parts.
The 2018 Toyota Avalon was sold with 3 engines. 7 parts fit every engine; the other 110 are engine-specific. Each part shows which engine(s) it fits.
41 brands supply automatic transmission parts for the 2018 Toyota Avalon, led by LUBEGARD (10 parts), NATIONAL (9 parts) and WJB / INMOTION PARTS (9 parts), plus 38 more brands. Quality grades include Multi-Vehicle, Standard Replacement and Economy.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2018 Toyota Avalon. 19 parts have it, including ATP B461 (Filter) and BCA NS99166 (Output Shaft Repair Sleeve). Each part number opens a page with every vehicle that part fits.
Bushing Kit
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DURA-BOND Fits: 3.5L V6 | TK26 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the Bushing kits.
One part is listed for the 2018 Toyota Avalon — DURA-BOND TK26.
Clutch Plate Pack
Friction Plate Pack
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| RAYBESTOS POWERTRAIN Fits: 3.5L V6 | RHT96260 | 🇺🇸 US 🇨🇦 CA | HT Clutch Pack Module | View on Amazon |
| RAYBESTOS POWERTRAIN Fits: 3.5L V6 | FRMTOYTA56 | 🇺🇸 US 🇨🇦 CA | Friction Module | View on Amazon |
Steel Plate Pack
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| RAYBESTOS POWERTRAIN Fits: 3.5L V6 | STMTOYTA56 | 🇺🇸 US 🇨🇦 CA | Steel Module | View on Amazon |
This table covers the clutch-plate packs inside the transmission or transfer case.
RAYBESTOS POWERTRAIN supplies the 3 Clutch Plate Pack parts for the 2018 Toyota Avalon.
The Friction Plate Pack section lists 2 options from RAYBESTOS POWERTRAIN — grouped under the catalog's "Friction Plate Pack" designation — the notes column spells out what sets them apart. RAYBESTOS POWERTRAIN RHT96260 is listed in this group.
In the Steel Plate Pack grade, RAYBESTOS POWERTRAIN supplies 1 part: grouped under the catalog's "Steel Plate Pack" designation — the notes column spells out what sets them apart. A representative part number is RAYBESTOS POWERTRAIN STMTOYTA56.
This group includes RAYBESTOS POWERTRAIN RHT96260, RAYBESTOS POWERTRAIN FRMTOYTA56 and RAYBESTOS POWERTRAIN STMTOYTA56.
Drain Plug Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: 2.5L L4 ELECTRIC/GAS | 652531CD | 🇺🇸 US | View on Amazon |
This table covers the gaskets that seal the Drain Plug. 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: DORMAN 652531CD.
Filter
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AUTOTECNICA Fits: 3.5L V6 | TY1222955K | 🇺🇸 US | XLE Plus or XLE PremiumTransmission Filter (35330-48020) and Gasket Kit | View on Amazon |
| PA CARGO Fits: all 2018 Avalon engines | 57710H | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| VARIOUS MFR Fits: 3.5L V6 | PT99393 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ATP Popular Fits: 3.5L V6 | B461 | 🇺🇸 US 🇨🇦 CA | Includes: (1) Gasket, (1) FilterPremium Replacement | View on Amazon |
| BECK/ARNLEY Popular Fits: 3.5L V6 | 0440356 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| ATP Fits: all 2018 Avalon engines | B205 | 🇺🇸 US 🇨🇦 CA | Premium Replacement | View on Amazon |
| HASTINGS / BALDWIN Fits: 2.5L L4 ELECTRIC/GAS, 3.5L V6 | 20071 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| VAICO Fits: 3.5L V6 | V700613 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| VAICO Fits: 3.5L V6 | V700615 | 🇺🇸 US 🇨🇦 CA | with Gasket | 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.
9 Filter parts are listed for the 2018 Toyota Avalon, from ATP, VAICO, AUTOTECNICA and 4 other brands. ATP B461 carries the "Popular" badge. 2 parts fit every engine; the other 7 are engine-specific.
In the Economy grade, AUTOTECNICA, PA CARGO and VARIOUS MFR supply 3 parts: the catalog's value-priced group. A representative part number is AUTOTECNICA TY1222955K.
The Standard Replacement section lists 6 options from ATP, VAICO, BECK/ARNLEY and 1 other brand — built to original-equipment specification. ATP B461 is listed in this group.
This group includes ATP B461, AUTOTECNICA TY1222955K and PA CARGO 57710H and the remaining parts above.
Fluid Cooler Line / Hose
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SUNSONG Fits: 3.5L V6 | 5801846 | 🇺🇸 US 🇨🇦 CA | Inlet | View on Amazon |
| SUNSONG Fits: 3.5L V6 | 5801847 | 🇺🇸 US 🇨🇦 CA | Outlet | 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.
SUNSONG supplies both parts for the 2018 Toyota Avalon.
This group includes SUNSONG 5801846 and SUNSONG 5801847.
Fluid Pan
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: 3.5L V6 | 265922 | 🇺🇸 US 🇨🇦 CA | Vehicle Built In North America | View on Amazon |
| SPECTRA PREMIUM Fits: 3.5L V6 | TP0922 | 🇺🇸 US 🇨🇦 CA | with Transaxle Serial No. 3 | View on Amazon |
This table covers the pans that hold automatic-transmission fluid.
2 Fluid Pan parts for the 2018 Toyota Avalon come from 2 brands — DORMAN and SPECTRA PREMIUM.
Listed part numbers: DORMAN 265922 and SPECTRA PREMIUM TP0922.
Fluid Pan Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PA CARGO Fits: all 2018 Avalon engines | 57500HF | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| VAICO Fits: 3.5L V6 | V700614 | 🇺🇸 US 🇨🇦 CA | 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.
2 Fluid Pan Gasket parts are listed for the 2018 Toyota Avalon, from PA CARGO and VAICO. 1 part fits every engine; the other 1 is engine-specific.
This group includes PA CARGO 57500HF and VAICO V700614.
Fluid Pump Bushing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DURA-BOND Fits: 3.5L V6 | TOT24TG | 🇺🇸 US 🇨🇦 CA | Dry Film Lubricated | View on Amazon |
| DURA-BOND Fits: 3.5L V6 | TOT25TG | 🇺🇸 US 🇨🇦 CA | Dry Film Lubricated | 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.
DURA-BOND supplies both parts for the 2018 Toyota Avalon.
This group includes DURA-BOND TOT24TG and DURA-BOND TOT25TG.
Input Shaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NATIONAL Fits: 2.5L L4 ELECTRIC/GAS | 710316 | 🇺🇸 US | Toyota trans. | View on Amazon |
| WJB / INMOTION PARTS Fits: 2.5L L4 ELECTRIC/GAS | WS710316 | 🇺🇸 US | Toyota trans. | View on Amazon |
This table covers the seals at the Input 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 Input Shaft Seal parts for the 2018 Toyota Avalon come from 2 brands — NATIONAL and WJB / INMOTION PARTS.
Part numbers include NATIONAL 710316 and WJB / INMOTION PARTS WS710316.
Manual Shaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BCA Fits: 2.5L L4 ELECTRIC/GAS, 3.5L V6 | NS221207 | 🇺🇸 US 🇨🇦 CA | Toyota trans. | View on Amazon |
| NATIONAL Fits: 2.5L L4 ELECTRIC/GAS, 3.5L V6 | 221207 | 🇺🇸 US 🇨🇦 CA | Toyota trans. | View on Amazon |
| TIMKEN Fits: 3.5L V6 | 221207 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WJB / INMOTION PARTS Fits: 2.5L L4 ELECTRIC/GAS, 3.5L V6 | WS221207 | 🇺🇸 US 🇨🇦 CA | Toyota 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.
4 Manual Shaft Seal parts for the 2018 Toyota Avalon come from 4 brands — BCA, NATIONAL, TIMKEN and 1 other brand.
This group includes BCA NS221207 and NATIONAL 221207 and the remaining parts above.
Output Shaft Repair Sleeve
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BCA Popular Fits: 2.5L L4 ELECTRIC/GAS, 3.5L V6 | NS99166 | 🇺🇸 US 🇨🇦 CA | Left | View on Amazon |
| NATIONAL Popular Fits: 2.5L L4 ELECTRIC/GAS, 3.5L V6 | 99157 | 🇺🇸 US 🇨🇦 CA | RightToyota trans. | View on Amazon |
| WJB / INMOTION PARTS Popular Fits: 3.5L V6 | WS99166 | 🇺🇸 US 🇨🇦 CA | Shaft Diameter Minimum (In): 1.647 In | View on Amazon |
| BCA Fits: 2.5L L4 ELECTRIC/GAS, 3.5L V6 | NS99157 | 🇺🇸 US 🇨🇦 CA | Right | View on Amazon |
| NATIONAL Fits: 2.5L L4 ELECTRIC/GAS | 99196 | 🇺🇸 US | LeftToyota trans. | View on Amazon |
| NATIONAL Fits: 3.5L V6 | 99166 | 🇺🇸 US 🇨🇦 CA | LeftToyota trans. | View on Amazon |
| SCHAEFFLER Fits: 3.5L V6 | SS3480 | 🇺🇸 US 🇨🇦 CA | Right12.93 mm Width | View on Amazon |
| SKF Fits: 3.5L V6 | 99153 | 🇺🇸 US 🇨🇦 CA | Shaft Diameter: 1.575 In | View on Amazon |
| WJB / INMOTION PARTS Fits: 2.5L L4 ELECTRIC/GAS | WS99196 | 🇺🇸 US | LeftToyota trans. | View on Amazon |
| WJB / INMOTION PARTS Fits: 2.5L L4 ELECTRIC/GAS, 3.5L V6 | WS99157 | 🇺🇸 US 🇨🇦 CA | RightToyota trans. | View on Amazon |
This table covers the wear sleeves used to restore a Output Shaft seal surface.
10 Output Shaft Repair Sleeve parts are listed for the 2018 Toyota Avalon, from NATIONAL, WJB / INMOTION PARTS, BCA and 2 other brands. BCA NS99166 carries the "Popular" badge.
Output Shaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NATIONAL Popular Fits: 2.5L L4 ELECTRIC/GAS, 3.5L V6 | 712551 | 🇺🇸 US 🇨🇦 CA | RightToyota trans. | View on Amazon |
| SKF Popular Fits: 2.5L L4 ELECTRIC/GAS | 19556 | 🇺🇸 US | Left | View on Amazon |
| WJB / INMOTION PARTS Popular Fits: 3.5L V6, 2.5L L4 ELECTRIC/GAS | WS712551 | 🇺🇸 US 🇨🇦 CA | RightToyota trans. | View on Amazon |
| BCA Fits: 2.5L L4 ELECTRIC/GAS, 3.5L V6 | NS712551 | 🇺🇸 US 🇨🇦 CA | External Markings: 40 X 56 X 6 | View on Amazon |
| BCA Fits: 2.5L L4 ELECTRIC/GAS | NS710112 | 🇺🇸 US | LeftToyota trans. | View on Amazon |
| BCA Fits: 3.5L V6 | NS710732 | 🇺🇸 US 🇨🇦 CA | Leftwith U660E Transmission Code | View on Amazon |
| NATIONAL Fits: 2.5L L4 ELECTRIC/GAS | 710112 | 🇺🇸 US | LeftToyota trans. | View on Amazon |
| NATIONAL Fits: 3.5L V6 | 710732 | 🇺🇸 US 🇨🇦 CA | LeftToyota trans. | View on Amazon |
| SCHAEFFLER Fits: 3.5L V6 | SS2615 | 🇺🇸 US 🇨🇦 CA | RightNitrile | View on Amazon |
| SKF Fits: 3.5L V6 | 20067 | 🇺🇸 US 🇨🇦 CA | Left | View on Amazon |
| SKF Fits: 3.5L V6 | 16194 | 🇺🇸 US 🇨🇦 CA | Right | View on Amazon |
| TIMKEN Fits: 2.5L L4 ELECTRIC/GAS | 710112 | 🇺🇸 US | Left | View on Amazon |
| TIMKEN Fits: 3.5L V6 | 712551 | 🇺🇸 US 🇨🇦 CA | Right | View on Amazon |
| WJB / INMOTION PARTS Fits: 2.5L L4 ELECTRIC/GAS | WS710112 | 🇺🇸 US | LeftToyota trans. | View on Amazon |
| WJB / INMOTION PARTS Fits: 3.5L V6 | WS710732 | 🇺🇸 US 🇨🇦 CA | LeftToyota 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.
15 Output Shaft Seal parts are listed for the 2018 Toyota Avalon, from NATIONAL, SKF, WJB / INMOTION PARTS and 3 other brands. NATIONAL 712551 carries the "Popular" badge.
Pressure Control (EPC) Solenoid
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ROSTRA Fits: 3.5L V6 | 520414 | 🇺🇸 US 🇨🇦 CA | SLT Line Pressure Linear SolenoidSmall Body | View on Amazon |
| ROSTRA Fits: 3.5L V6 | 520569 | 🇺🇸 US 🇨🇦 CA | Small CanSLU Linear Solenoid | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 2.5L L4 ELECTRIC/GAS, 3.5L V6 | TCS307 | 🇺🇸 US 🇨🇦 CA | Line Pressure Control | View on Amazon |
| WELLS Fits: 3.5L V6 | 2N1383 | 🇺🇸 US 🇨🇦 CA | 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.
4 Pressure Control (EPC) Solenoid parts are listed for the 2018 Toyota Avalon, from ROSTRA, STANDARD MOTOR PRODUCTS and WELLS.
This group includes ROSTRA 520414, ROSTRA 520569 and STANDARD MOTOR PRODUCTS TCS307 and the remaining parts above.
Rebuild Kit
Banner Kit (Overhaul Kit + Friction Clutch Plates)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PA CARGO Fits: all 2018 Avalon engines | DK5700HS | 🇺🇸 US 🇨🇦 CA | View on Amazon |
Master Kit (Overhaul Kit + Friction & Steel Clutch Plates)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PA CARGO Fits: all 2018 Avalon engines | DK5700H | 🇺🇸 US 🇨🇦 CA | View on Amazon |
Overhaul Kit (Gaskets, Seals, O-Rings & Sealing Rings)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PA CARGO Fits: all 2018 Avalon engines | K57900H | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| TRANSTEC Fits: 3.5L V6 | 81000612 | 🇺🇸 US 🇨🇦 CA | without PistonsDuraprene Pan Gasket | View on Amazon |
This table covers the rebuild kits for this assembly.
4 Rebuild Kit parts for the 2018 Toyota Avalon come from 2 brands — PA CARGO and TRANSTEC. 3 parts fit every engine; the other 1 is engine-specific.
The Banner Kit (Overhaul Kit + Friction Clutch Plates) section lists 1 option from PA CARGO — grouped under the catalog's "Banner Kit (Overhaul Kit + Friction Clutch Plates)" designation — the notes column spells out what sets them apart. PA CARGO DK5700HS is listed in this group.
In the Master Kit (Overhaul Kit + Friction & Steel Clutch Plates) grade, PA CARGO supplies 1 part: grouped under the catalog's "Master Kit (Overhaul Kit + Friction & Steel Clutch Plates)" designation — the notes column spells out what sets them apart. A representative part number is PA CARGO DK5700H.
The Overhaul Kit (Gaskets, Seals, O-Rings & Sealing Rings) section lists 2 options from PA CARGO and TRANSTEC — grouped under the catalog's "Overhaul Kit (Gaskets, Seals, O-Rings & Sealing Rings)" designation — the notes column spells out what sets them apart. PA CARGO K57900H is listed in this group.
This group includes PA CARGO DK5700HS, PA CARGO DK5700H and PA CARGO K57900H and the remaining parts above.
Servo Piston
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PA CARGO Fits: all 2018 Avalon engines | K57900N99 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the pistons in a transmission servo.
One part is listed for the 2018 Toyota Avalon — PA CARGO K57900N99.
Shift Improvement Kit
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SONNAX Fits: 3.5L V6 | U660EZIP | 🇺🇸 US 🇨🇦 CA | Zip Kit® | View on Amazon |
| TRANSGO Fits: 3.5L V6 | SKU660E | 🇺🇸 US 🇨🇦 CA | Shift KitFor U660E Transmissions | View on Amazon |
This table covers the Shift Improvement kits.
2 Shift Improvement Kit parts are listed for the 2018 Toyota Avalon, from SONNAX and TRANSGO.
Listed part numbers: SONNAX U660EZIP and TRANSGO SKU660E.
Shift Shaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SCHAEFFLER Fits: 3.5L V6 | SS2111 | 🇺🇸 US 🇨🇦 CA | 7 MM Width22.25 mm Outside Diameter | View on Amazon |
| TIMKEN Fits: 2.5L L4 ELECTRIC/GAS | 221207 | 🇺🇸 US | View on Amazon |
This table covers the seals at the Shift 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 Shift Shaft Seal parts for the 2018 Toyota Avalon come from 2 brands — SCHAEFFLER and TIMKEN.
Listed part numbers: SCHAEFFLER SS2111 and TIMKEN 221207.
Shift Solenoid
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ROSTRA Popular Fits: 3.5L V6 | 520578 | 🇺🇸 US 🇨🇦 CA | SL Lock-Up Solenoidblue | View on Amazon |
| ROSTRA Popular Fits: 3.5L V6 | 520579 | 🇺🇸 US 🇨🇦 CA | SL1 Linear Shift SolenoidBrown Connector | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 2.5L L4 ELECTRIC/GAS, 3.5L V6 | TCS265 | 🇺🇸 US 🇨🇦 CA | Clutch Solenoid No.1 | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 2.5L L4 ELECTRIC/GAS, 3.5L V6 | TCS181 | 🇺🇸 US 🇨🇦 CA | 3 Way Solenoid | View on Amazon |
| VEMO Fits: 3.5L V6 | V70772011 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WELLS Fits: 2.5L L4 ELECTRIC/GAS, 3.5L V6 | 2N1303 | 🇺🇸 US 🇨🇦 CA | 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.
6 Shift Solenoid parts for the 2018 Toyota Avalon come from 4 brands — ROSTRA, STANDARD MOTOR PRODUCTS, VEMO and 1 other brand. The "Popular" part is ROSTRA 520578.
Part numbers include ROSTRA 520578, ROSTRA 520579 and STANDARD MOTOR PRODUCTS TCS265, among others listed above.
Sun Gear Bushing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DURA-BOND Fits: 3.5L V6 | TOT22 | 🇺🇸 US 🇨🇦 CA | Output Rear Sun Gear (Front & Rear), Sun Gear (Front & Rear) | View on Amazon |
This table covers the Sun Gear 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 TOT22.
Torque Converter
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TC REMANUFACTURING Fits: 3.5L V6 | TO87 | 🇺🇸 US | Converter Codes:P, 423KA | View on Amazon |
This table covers the Torque converters. Typical signs include a sulfur smell, rattling substrate, or an efficiency code. Confirm CARB vs Federal certification in the notes before ordering.
One part is listed for the 2018 Toyota Avalon — TC REMANUFACTURING TO87.
Torque Converter Clutch Solenoid
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 2.5L L4 ELECTRIC/GAS, 3.5L V6 | TCS327 | 🇺🇸 US 🇨🇦 CA | Lock-Up | View on Amazon |
| WELLS Fits: 2.5L L4 ELECTRIC/GAS, 3.5L V6 | 2N1422 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the Torque Converter Clutch 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.
2 Torque Converter Clutch Solenoid parts are listed for the 2018 Toyota Avalon, from STANDARD MOTOR PRODUCTS and WELLS.
Part numbers include STANDARD MOTOR PRODUCTS TCS327 and WELLS 2N1422.
Torque Converter Shaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NATIONAL Fits: 2.5L L4 ELECTRIC/GAS, 3.5L V6 | 710929 | 🇺🇸 US 🇨🇦 CA | Toyota trans. | View on Amazon |
| SCHAEFFLER Fits: 3.5L V6 | SS6310 | 🇺🇸 US 🇨🇦 CA | 2.45" O.D. X 0.2" Width | View on Amazon |
| TIMKEN Fits: 2.5L L4 ELECTRIC/GAS | 222535 | 🇺🇸 US | View on Amazon | |
| WJB / INMOTION PARTS Fits: 2.5L L4 ELECTRIC/GAS, 3.5L V6 | WS710929 | 🇺🇸 US 🇨🇦 CA | Toyota 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.
4 Torque Converter Shaft Seal parts for the 2018 Toyota Avalon come from 4 brands — NATIONAL, SCHAEFFLER, TIMKEN and 1 other brand.
Listed part numbers: NATIONAL 710929, SCHAEFFLER SS6310 and TIMKEN 222535, plus the other parts above.
Transmission Fluid
ATF 64
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PENTOSIN Fits: 2.5L L4 ELECTRIC/GAS, 3.5L V6 | 1058113 | 🇺🇸 US 🇨🇦 CA | 1 LiterATF64 or ATF44 | View on Amazon |
| PENTOSIN Fits: 2.5L L4 ELECTRIC/GAS, 3.5L V6 | 1058215 | 🇺🇸 US 🇨🇦 CA | 5 LitersATF64 or ATF44 | View on Amazon |
CVT
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| LUBEGARD Fits: 2.5L L4 ELECTRIC/GAS | 68112 | 🇺🇸 US | Complete CVT Fluid32 oz | View on Amazon |
Dexron
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular Fits: 2.5L L4 ELECTRIC/GAS, 3.5L V6 | 109243 | 🇺🇸 US | Container Type: Plastic Container | View on Amazon |
Multi-Vehicle
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOBIL Popular Fits: 2.5L L4 ELECTRIC/GAS, 3.5L V6 | 126505 | 🇺🇸 US 🇨🇦 CA | Multi-Vehicle ATF | View on Amazon |
| VALVOLINE Popular Fits: 2.5L L4 ELECTRIC/GAS, 3.5L V6 | VV3246 | 🇺🇸 US 🇨🇦 CA | Max Life Multi-Vehicle or Maxlife Multi-Vehicle Full Synthetic ATF1 Quart | View on Amazon |
| VALVOLINE Popular Fits: 2.5L L4 ELECTRIC/GAS, 3.5L V6 | 773775 | 🇺🇸 US 🇨🇦 CA | Max Life Multi-Vehicle or Maxlife Multi-Vehicle Full Synthetic ATF1 Gallon | View on Amazon |
| LIQUI MOLY Fits: 2.5L L4 ELECTRIC/GAS, 3.5L V6 | 20032 | 🇺🇸 US 🇨🇦 CA | Top Tec ATF 18001 Liter | View on Amazon |
| LIQUI MOLY Fits: 2.5L L4 ELECTRIC/GAS, 3.5L V6 | 22036 | 🇺🇸 US 🇨🇦 CA | Top Tec ATF 18005 Liter | View on Amazon |
| LIQUI MOLY Fits: 2.5L L4 ELECTRIC/GAS, 3.5L V6 | 20034 | 🇺🇸 US 🇨🇦 CA | Top TEC ATF 180020 Liter | View on Amazon |
| LUBEGARD Fits: 3.5L V6 | 69032 | 🇺🇸 US 🇨🇦 CA | 1 QuartComplete Full Synthetic ATF Fluid | View on Amazon |
| LUCAS OIL Fits: 2.5L L4 ELECTRIC/GAS, 3.5L V6 | 11255 | 🇺🇸 US 🇨🇦 CA | LOW VISCOSITY SYNTHETIC MULTI-VEHICLE AUTOMATIC TRANSMISSION FLUID1 qt | View on Amazon |
| LUCAS OIL Fits: 2.5L L4 ELECTRIC/GAS, 3.5L V6 | 18037 | 🇺🇸 US 🇨🇦 CA | Low Viscosity Synthetic Multi-Vehicle Automatic Transmission Fluid6 Gallon | View on Amazon |
| VALVOLINE Fits: 2.5L L4 ELECTRIC/GAS, 3.5L V6 | 822389 | 🇺🇸 US 🇨🇦 CA | Import Multi-Vehicle ATF1 Quart | View on Amazon |
| VALVOLINE Fits: 2.5L L4 ELECTRIC/GAS, 3.5L V6 | 881051 | 🇺🇸 US 🇨🇦 CA | Maxlife Multi-Vehicle Full Synthetic ATF5 Gallon Bay Box | View on Amazon |
World Standard (WS)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AISIN Popular Fits: 3.5L V6 | ATF0WS | 🇺🇸 US 🇨🇦 CA | 1 QuartType WS | View on Amazon |
| IDEMITSU Fits: 2.5L L4 ELECTRIC/GAS, 3.5L V6 | 30040096750 | 🇺🇸 US | ATF Type TLS-LV1 Quart | View on Amazon |
| IDEMITSU Fits: 2.5L L4 ELECTRIC/GAS, 3.5L V6 | 30040096953 | 🇺🇸 US | ATF Type TLS-LV5 Quart | View on Amazon |
ZF Fluid
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ZF Fits: 2.5L L4 ELECTRIC/GAS | 5961308626 | 🇺🇸 US | ZF Lifeguard Fluid CVT 1includes 1 L Bottle | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Fits: 2.5L L4 ELECTRIC/GAS, 3.5L V6 | 899179 | 🇺🇸 US 🇨🇦 CA | 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.
20 Transmission Fluid parts are listed for the 2018 Toyota Avalon, from VALVOLINE, LIQUI MOLY, PENTOSIN and 7 other brands. ACDELCO 109243 carries the "Popular" badge.
The ATF 64 section lists 2 options from PENTOSIN — grouped under the catalog's "ATF 64" designation — the notes column spells out what sets them apart. PENTOSIN 1058113 is listed in this group.
The CVT section lists 1 option from LUBEGARD — grouped under the catalog's "CVT" designation — the notes column spells out what sets them apart. LUBEGARD 68112 is listed in this group.
In the Dexron grade, ACDELCO supplies 1 part: grouped under the catalog's "Dexron" designation — the notes column spells out what sets them apart. A representative part number is ACDELCO 109243.
In the Multi-Vehicle grade, VALVOLINE, LIQUI MOLY, LUCAS OIL and 2 other brands supply 11 parts: grouped under the catalog's "Multi-Vehicle" designation — the notes column spells out what sets them apart. A representative part number is MOBIL 126505.
In the World Standard (WS) grade, IDEMITSU and AISIN supply 3 parts: grouped under the catalog's "World Standard (WS)" designation — the notes column spells out what sets them apart. A representative part number is AISIN ATF0WS.
In the ZF Fluid grade, ZF supplies 1 part: grouped under the catalog's "ZF Fluid" designation — the notes column spells out what sets them apart. A representative part number is ZF 5961308626.
1 ungrouped part is not assigned to a grade, with the same engine-level match.
Transmission Fluid Additive
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| LUBEGARD Popular Fits: 3.5L V6 | 19610 | 🇺🇸 US 🇨🇦 CA | Instant Shudder Fixx2 oz | View on Amazon |
| LUBEGARD Popular Fits: 3.5L V6 | 60902 | 🇺🇸 US 🇨🇦 CA | Automatic Transmission Fluid Protectant10 oz | View on Amazon |
| LUBEGARD Fits: 2.5L L4 ELECTRIC/GAS | 67010 | 🇺🇸 US | Continuously Variable Transmission Recharge & Protect10 oz | View on Amazon |
| LUBEGARD Fits: 3.5L V6 | 19689 | 🇺🇸 US 🇨🇦 CA | Instant Shudder Fixx2 oz | View on Amazon |
| LUBEGARD Fits: 3.5L V6 | 61910 | 🇺🇸 US 🇨🇦 CA | 10 ozHighly Friction Modified ATF Supplement | View on Amazon |
| LUBEGARD Fits: 3.5L V6 | 63010 | 🇺🇸 US 🇨🇦 CA | Platinum Universal ATF Protectant10 oz | View on Amazon |
| LUBEGARD Fits: 3.5L V6 | 63016 | 🇺🇸 US 🇨🇦 CA | Platinum Universal ATF Protectant15 oz | View on Amazon |
| LUBEGARD Fits: 3.5L V6 | 63032 | 🇺🇸 US 🇨🇦 CA | Platinum Universal ATF Protectant32 oz | View on Amazon |
This table covers the conditioners and additives used with this transmission fluid.
LUBEGARD supplies the 8 Transmission Fluid Additive parts for the 2018 Toyota Avalon. LUBEGARD 19610 carries the "Popular" badge.
Part numbers include LUBEGARD 19610, LUBEGARD 60902 and LUBEGARD 67010, among others listed above.
Transmission Mount
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SKP Popular Fits: 3.5L V6 | SKM9236 | 🇺🇸 US 🇨🇦 CA | LeftHydraulic | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PIONEER Popular Fits: 3.5L V6 | 624288 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| ANCHOR Fits: 3.5L V6 | 9236 | 🇺🇸 US 🇨🇦 CA | LeftHydraulic | View on Amazon |
| BECK/ARNLEY Fits: 3.5L V6 | 1042038 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| DEA / MARMON RIDE CONTROL Fits: 3.5L V6 | A4288 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WESTAR Fits: 3.5L V6 | EM7498 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ANCHOR Fits: 2.5L L4 ELECTRIC/GAS | 9165 | 🇺🇸 US | LeftHydraulic | View on Amazon |
| DEA / MARMON RIDE CONTROL Fits: 2.5L L4 ELECTRIC/GAS | A4207 | 🇺🇸 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.
8 Transmission Mount parts for the 2018 Toyota Avalon come from 6 brands — ANCHOR, DEA / MARMON RIDE CONTROL, SKP and 3 other brands. The "Popular" part is SKP SKM9236.
The Economy section: 1 option from SKP. SKP SKM9236 is listed in this group.
Standard Replacement: 5 parts, from PIONEER, ANCHOR, BECK/ARNLEY and 2 other brands. A representative part number is PIONEER 624288.
2 further parts sit outside the graded sections, with the same engine-level match.
Listed part numbers: SKP SKM9236, PIONEER 624288 and ANCHOR 9236, plus the other parts above.
Valve Body Vacuum Tester
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SONNAX Fits: 3.5L V6 | 47740VTP | 🇺🇸 US 🇨🇦 CA | Vacuum Test Plate KitFor Toyota U660E, U660F, U760E and U760F Units | View on Amazon |
This table covers the testers used to diagnose a valve body.
One part is listed for the 2018 Toyota Avalon — SONNAX 47740VTP.
Buying Automatic Transmission Parts for a 2018 Toyota Avalon
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. Some automatic transmission 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 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 2018 Toyota Avalon?
Our catalog currently lists 117 automatic transmission parts for the 2018 Toyota Avalon across 26 subcategories and 41 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 automatic transmission parts differ between 2018 Toyota Avalon engines?
Some do. 7 parts fit every engine; the other 110 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 automatic transmission problems on a 2018 Toyota Avalon?
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 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 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 2018 Toyota Avalon
Automatic Transmission Parts for Other Toyota Avalon Years
Switch vehicle or jump to a subcategory
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.