How to remove and install the crankshaft seal on Hyundai Sonata?

Lift the transaxle out of the car and then the driveplate or flywheel has to be pulled out. Whether it is a slotted or a solid Crankshaft Seal, pry it out from the rear of the engine using a seal removal tool or a flat-end screwdriver, risking the crankshaft or the seal bore. Afterwards, clean the seal bore area within the block with a shop towel to ensure that the area is free of any oil or dirt deposits. Apply oil on the OD of the seal and place it over the extremity of the crankshaft with the lip facing the engine. Ideally, a seal installation tool can be used to push the new seal back into its proper position while it is noted that a small oil drain in the separator must be in the lowest position. If the proper tool is not available, the big socket must be used to insert the new seal gently into the seal bore in a way they are perpendicular to the surface of the engine block and lies flush with the outer perimeter of the block. Lastly, bolt on the driveplate/flywheel, and then the transaxle.

Genuine Hyundai Sonata Crankshaft Seal

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37 Crankshaft Seals found

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Hyundai Sonata Oil Seal
Part Number: 21421-2G100
$20.78 MSRP: $26.85
You Save: $6.07 (23%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Seal-Oil
- Replaces: 21421-25000, 21421-25001, 21421-25002
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 2005-2019 Hyundai Sonata | High Grade, Middle Grade | DOHC - GDI, DOHC - MPI, DOHC - TCI/GDI | 4 Door Sedan, Sedan - 4Door 5P
View related parts
Hyundai Sonata Oil Seal
Part Number: 21421-25002
$20.78 MSRP: $26.85
You Save: $6.07 (23%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Seal-Oil
- Replaced by: 21421-2G100
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 2007-2014 Hyundai Sonata | DOHC - GDI, DOHC - MPI, DOHC - TCI/GDI | Sedan - 4Door 5P
View related parts
Hyundai Sonata Seal-Oil Rear
Part Number: 21443-2G000
$28.53 MSRP: $39.74
You Save: $11.21 (29%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Rear Main Seal, Rear Seal
- Position: Rear
- Replaces: 21443-25000
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 2005-2019 Hyundai Sonata | High Grade, Middle Grade | DOHC - GDI, DOHC - MPI, DOHC - TCI/GDI | 4 Door Sedan, Sedan - 4Door 5P
View related parts
Hyundai Sonata Oil Seal
Part Number: 21421-2B030
$13.45 MSRP: $17.39
You Save: $3.94 (23%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Seal-Oil
- Replaces: 21421-2B020
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 2015-2019 Hyundai Sonata | DOHC - TCI/GDI | Sedan - 4Door 5P
View related parts
Hyundai Sonata Oil Seal
Part Number: 21421-2B020
$13.45 MSRP: $17.39
You Save: $3.94 (23%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Seal-Oil
- Replaced by: 21421-2B030
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 2015-2017 Hyundai Sonata | DOHC - TCI/GDI | Sedan - 4Door 5P
View related parts
Hyundai Sonata Seal-Oil Rear
Part Number: 21443-2B020
$55.68 MSRP: $77.55
You Save: $21.87 (29%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Rear Main Seal
- Position: Rear
- Replaces: 21443-2B000, 21443-2B010
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 2015-2023 Hyundai Sonata | DOHC - TCI/GDI | Sedan - 4Door 5P
View related parts
Hyundai Sonata Seal-Oil Rear
Part Number: 21443-25000
$28.53 MSRP: $39.74
You Save: $11.21 (29%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Position: Rear
- Replaced by: 21443-2G000
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 2005-2014 Hyundai Sonata | High Grade, Middle Grade | DOHC - GDI, DOHC - MPI, DOHC - TCI/GDI | 4 Door Sedan, Sedan - 4Door 5P
View related parts
Hyundai Sonata Seal-Oil Rear
Part Number: 21443-2A100
$81.08 MSRP: $113.92
You Save: $32.84 (29%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Position: Rear
- Replaced by: 21443-2A200
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 2007-2010 Hyundai Sonata | DOHC - MPI | Sedan - 4Door 5P
View related parts
Hyundai Sonata Oil Seal
Part Number: 21352-3C600
$27.53 MSRP: $38.34
You Save: $10.81 (29%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Seal-Oil
- Replaced by: 21352-3C700
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 2007-2010 Hyundai Sonata | DOHC - MPI | Sedan - 4Door 5P
View related parts
Hyundai Sonata Oil Seal
Part Number: 21421-33134
$8.46 MSRP: $10.94
You Save: $2.48 (23%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Seal-Oil
- Replaces: 21421-32034, 21421-32030
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 1988-2005 Hyundai Sonata | High Grade, Middle Grade | 4 Door, 4 Door Sedan
View related parts
Hyundai Sonata Seal-Oil Rear
Part Number: 21443-35510
$81.08 MSRP: $113.92
You Save: $32.84 (29%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Position: Rear
- Replaced by: 21443-2A200
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 1988-2006 Hyundai Sonata | High Grade, Middle Grade | 4 Door, 4 Door Sedan
View related parts
Hyundai Sonata Oil Seal
Part Number: 21352-3C500
$27.53 MSRP: $38.34
You Save: $10.81 (29%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Seal-Oil
- Replaced by: 21352-3C700
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 2005-2010 Hyundai Sonata | High Grade, Middle Grade | DOHC - MPI | 4 Door Sedan, Sedan - 4Door 5P
View related parts
Hyundai Sonata Seal-Oil Rear
Part Number: 21443-33005
$40.61 MSRP: $56.56
You Save: $15.95 (29%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Position: Rear
- Replaced by: 21321-42042
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 1988-1998 Hyundai Sonata | High Grade, Middle Grade | 4 Door
View related parts
Hyundai Sonata Oil Seal
Part Number: 21421-25000
$20.78 MSRP: $26.85
You Save: $6.07 (23%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Seal-Oil
- Replaced by: 21421-2G100
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 2005-2006 Hyundai Sonata | High Grade, Middle Grade | 4 Door Sedan
View related parts
Hyundai Sonata Oil Seal
Part Number: 21421-35500
$13.72 MSRP: $17.73
You Save: $4.01 (23%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Seal-Oil
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 2001-2005 Hyundai Sonata | High Grade, Middle Grade | 4 Door Sedan
View related parts
Hyundai Sonata Seal-Oil Rear
Part Number: 21443-2B010
$55.68 MSRP: $77.55
You Save: $21.87 (29%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Position: Rear
- Replaced by: 21443-2B020
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 2015-2017 Hyundai Sonata | DOHC - TCI/GDI | Sedan - 4Door 5P
View related parts
Hyundai Sonata Oil Seal
Part Number: 21421-35011
$14.21 MSRP: $18.37
You Save: $4.16 (23%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Seal-Oil; Front Cover Oil Seal, Front Crank Seal, Oil Pump
- Replaces: 21421-35010, 21421-35500
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 1988-2001 Hyundai Sonata | High Grade, Middle Grade | 4 Door
View related parts
Hyundai Sonata Oil Seal
Part Number: 21421-33114
$23.95 MSRP: $33.35
You Save: $9.40 (29%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Seal-Oil; Camshaft Seal, Front Crank Seal
- Replaces: 21421-32014
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 1988-2005 Hyundai Sonata | High Grade, Middle Grade | 4 Door, 4 Door Sedan
View related parts
Hyundai Sonata Oil Seal
Part Number: 21421-2M000
$8.84 MSRP: $11.42
You Save: $2.58 (23%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Seal-Oil
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 2020-2023 Hyundai Sonata | DOHC - TCI/GDI | Sedan - 4Door 5P
View related parts
Hyundai Sonata Seal-Oil Rear
Part Number: 21443-3E000
$81.08 MSRP: $113.92
You Save: $32.84 (29%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Position: Rear
- Replaced by: 21443-2A200
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 2007-2010 Hyundai Sonata | DOHC - MPI | Sedan - 4Door 5P

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1-20 of 37 Results

Hyundai Sonata Crankshaft Seal

The Hyundai Sonata Crankshaft Seal keeps engine oil locked inside the crankcase and prevents dry friction and premature wear of the moving parts. Positioned at the front end of the crankshaft, this Crankshaft Seal is a round ring that combines metal for strength and rubber for flexibility to allow it to hug the spinning shaft while standing firm against pressure and heat. Across generations of Hyundai Sonata engines and within the many models of the Sonata, the original Crankshaft Seal design has remained constant because the composite construction already provides a balance between durability and tight fit. Drivers do not find different variants beyond subtle changes to the material applied, which can be found within the wider Hyundai range. When the Crankshaft Seal ages, small cracks or hardening allow oil to escape, and there are often visible drips and a telltale burning smell indicating that the seal can no longer do its vital job. High mileage, constant heat cycles, and exposure to contaminants accelerate wear. Replacing a tired Crankshaft Seal quickly restores a clean, leak-free Hyundai ride and keeps every Sonata cruising smoothly.

If you are looking for affordable high-quality OEM Hyundai Sonata Crankshaft Seal, then you have come to the prime place. Our website provides a large amount of genuine Hyundai Sonata Crankshaft Seal at unbeatable prices. All our parts come backed with the manufacturer's warranty.

Hyundai Sonata Crankshaft Seal Parts Questions & Experts Answers

Oil Seal
21421-25002
Q: How to remove and install the crankshaft seal on Hyundai Sonata?
A:
Lift the transaxle out of the car and then the driveplate or flywheel has to be pulled out. Whether it is a slotted or a solid Crankshaft Seal, pry it out from the rear of the engine using a seal removal tool or a flat-end screwdriver, risking the crankshaft or the seal bore. Afterwards, clean the seal bore area within the block with a shop towel to ensure that the area is free of any oil or dirt deposits. Apply oil on the OD of the seal and place it over the extremity of the crankshaft with the lip facing the engine. Ideally, a seal installation tool can be used to push the new seal back into its proper position while it is noted that a small oil drain in the separator must be in the lowest position. If the proper tool is not available, the big socket must be used to insert the new seal gently into the seal bore in a way they are perpendicular to the surface of the engine block and lies flush with the outer perimeter of the block. Lastly, bolt on the driveplate/flywheel, and then the transaxle.