How to service and repair the transfer case seal on Toyota Sienna?

A technician must start the repair of a transfer case oil seal through engine removal and transaxle followed by automatic transmission with transfer separation and finally transfer assembly disassembly. Special Service Tool: 09308-00010(s) must be used to remove the CTR differential lock sleeve and transfer case oil seal yet the tool should never contact the oil-seal-fitted surface of the case. Plug Special Service Tools 09387-00010 and 09950-70010 (09951-07150) to secure the specified position of a new transfer case oil seal before applying a tiny amount of MP grease to the lip of the oil seal. Installation begins with replacing the engine below and the transaxle followed by the automatic transmission combined with transfer followed by the transfer assembly and ended with the CTR differential lock sleeve placement. The process ends with equipment used to check the front alignment and ABS speed sensor signal while performing adjustments.

How to replace the Transfer Case Seal on Toyota Sienna?

The replacement of the Transfer Case Oil Seal (4WD) starts with disassembling the engine assembly with transaxle while continuing with the automatic transmission with transfer and finally extracting the transfer assembly. Use Special Service Tool: 09308-00010 to remove the center differential lock sleeve and transfer case oil seal so you can protect the oil-seal-fitted surface of the case. Install the new transfer case oil seal with Special Service Tools 09387-00010 and 09950-70010 (09951-07150) by passing it through correctly and not at an angle while applying a tiny amount of MP grease to the oil seal lip. Put on the center differential lock sleeve then install the transfer assembly before adding the automatic transmission with transfer and ending with the engine assembly with transaxle. Perform a final examination of front wheel alignment and test the ABS speed sensor signal for the ABS with EBD & BA & TRAC & VSC system.

OEM Toyota Sienna Transfer Case Seal

Transfer Case Output Shaft Seal

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8 Transfer Case Seals found

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Toyota Sienna Seal, Driver Side
Part Number: 90311-50029
$24.96 MSRP: $34.75
You Save: $9.79 (29%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Seal, Type T Oil; Multi-Purpose Seal; Axle Seal; Oil Seal; Seal, Oil(For Differential Side Bearing Retainer); Oil Seal, Front Drive Shaft, Driver Side
- Position: Driver Side
- Replaces: 90311-50011
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 1998-2003 Toyota Sienna | CE, LE, XLE | 6 Cyl 3.0 L GAS
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Toyota Sienna Seal, Passenger Side
Part Number: 90311-40028
$14.93 MSRP: $20.78
You Save: $5.85 (29%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Seal, Type T Oil; Multi-Purpose Seal; Oil Seal Set; Axle Seal; Oil Seal; Seal, Oil (For Front Differential Oil Seal Retainer); Front Drive Shaft Oil Seal, Passenger Side
- Position: Passenger Side
- Replaces: 90311-40010
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 1998-2003 Toyota Sienna | CE, LE, XLE | 6 Cyl 3.0 L GAS
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Toyota Sienna Extension Housing Seal
Part Number: 90311-38090
$11.82 MSRP: $16.45
You Save: $4.63 (29%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Seal, Type T Oil; Transfer Case Seals; Gasket; Multi-Purpose Seal; Transmission Seal; Oil Seal; Seal, Type T Oil (For Transfer Extension Housing)
- Replaces: 90311-38062
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2011-2020 Toyota Sienna | Base, L, LE, Limited, Limited Premium, SE, SE Premium, XLE, XLE Premium | 4 Cyl 2.7 L GAS, 6 Cyl 3.5 L GAS
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Toyota Sienna Seal, Oil (For Rear Differential Carrier)
Part Number: 90311-38068
$11.46 MSRP: $15.95
You Save: $4.49 (29%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Seal, Type T Oil; Differential Pinion Seal; Differential Seal; Axle Seal
- Position: Rear
- Replaces: 90311-38019, 90311-38027, 90311-38052, 90311-38048
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2004-2010 Toyota Sienna | CE, LE, Limited, XLE, XLE Limited | 6 Cyl 3.3 L GAS, 6 Cyl 3.5 L GAS
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Toyota Sienna Output Shaft Seal, Rear
Part Number: 90311-35032
$13.97 MSRP: $19.45
You Save: $5.48 (29%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Seal, Type T Oil; Drive Axle Shaft Seal, Rear; Multi-Purpose Seal; Wheel Seal; Axle Seal; Oil Seal; Shaft Seals; Axle Seals; Inner Seal; Oil Seals for Rear Differential and Drive Shafts.
- Position: Rear
- Replaces: 90311-35018
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2004-2010 Toyota Sienna | CE, LE, Limited, XLE, XLE Limited | 6 Cyl 3.3 L GAS, 6 Cyl 3.5 L GAS
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Toyota Sienna Oil Seal, Driver Side
Part Number: 90311-50059
$17.91 MSRP: $24.93
You Save: $7.02 (29%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Seal, Type T Oil; CV Axle Shaft Seal, Front Left, Rear Left; Wheel Seal; Axle Seal; Output Shaft Seal; Oil Seal, Front Drive Shaft, Driver Side; Oil Seal, Rear Drive Shaft, Driver Side
- Position: Driver Side
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2021-2023 Toyota Sienna | 25th Anniversary Edition, LE, Limited, Platinum, XLE, XSE | 4 Cyl 2.5 L FULL HYBRID EV-GAS (FHEV)
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Toyota Sienna Axle Seals
Part Number: 90311-42062
$15.76 MSRP: $21.94
You Save: $6.18 (29%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Seal, Type T Oil; CV Axle Shaft Seal; Wheel Seal; Axle Seal; Seal, Oil (For Rear Differential Side Gear Shaft); Rear Drive Shaft Oil Seals, Both Sides
- Replaces: 90311-42044, 90311-42047
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2011-2020 Toyota Sienna | Base, L, LE, Limited, Limited Premium, SE, SE Premium, XLE, XLE Premium | 4 Cyl 2.7 L GAS, 6 Cyl 3.5 L GAS
View related parts
Toyota Sienna Oil Seal, Passenger Side
Part Number: 90311-40046
$13.61 MSRP: $18.95
You Save: $5.34 (29%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Seal, Type T Oil; CV Axle Shaft Seal, Front Right; Wheel Seal; Axle Seal; Output Shaft Seal; Oil Seal, Front Drive Shaft, Passenger Side
- Position: Passenger Side
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2021-2023 Toyota Sienna | 25th Anniversary Edition, LE, Limited, Platinum, XLE, XSE | 4 Cyl 2.5 L FULL HYBRID EV-GAS (FHEV)

Toyota Sienna Transfer Case Seal

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Toyota Sienna Transfer Case Seal Parts and Q&A

Output Shaft Seal, Rear
90311-35032
Q: How to service and repair the transfer case seal on Toyota Sienna?
A:
A technician must start the repair of a transfer case oil seal through engine removal and transaxle followed by automatic transmission with transfer separation and finally transfer assembly disassembly. Special Service Tool: 09308-00010(s) must be used to remove the CTR differential lock sleeve and transfer case oil seal yet the tool should never contact the oil-seal-fitted surface of the case. Plug Special Service Tools 09387-00010 and 09950-70010 (09951-07150) to secure the specified position of a new transfer case oil seal before applying a tiny amount of MP grease to the lip of the oil seal. Installation begins with replacing the engine below and the transaxle followed by the automatic transmission combined with transfer followed by the transfer assembly and ended with the CTR differential lock sleeve placement. The process ends with equipment used to check the front alignment and ABS speed sensor signal while performing adjustments.
Seal, Oil (For Rear Differential Carrier)
90311-38068
Q: How to replace the Transfer Case Seal on Toyota Sienna?
A:
The replacement of the Transfer Case Oil Seal (4WD) starts with disassembling the engine assembly with transaxle while continuing with the automatic transmission with transfer and finally extracting the transfer assembly. Use Special Service Tool: 09308-00010 to remove the center differential lock sleeve and transfer case oil seal so you can protect the oil-seal-fitted surface of the case. Install the new transfer case oil seal with Special Service Tools 09387-00010 and 09950-70010 (09951-07150) by passing it through correctly and not at an angle while applying a tiny amount of MP grease to the oil seal lip. Put on the center differential lock sleeve then install the transfer assembly before adding the automatic transmission with transfer and ending with the engine assembly with transaxle. Perform a final examination of front wheel alignment and test the ABS speed sensor signal for the ABS with EBD & BA & TRAC & VSC system.

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