How to remove and install the rear Crankshaft Seal on Kia Optima?

Again, you have to pull out the transaxle; after that, you have to do the same with the driveplate or flywheel. The Crankshaft Seal is pressed on from the back of the engine therefore pry it off carefully using the seal removing tool or the screwdriver but be careful not to cut or scratch the crankshaft or the seal slot. Wipe down the inside of the seal bore in the block with the shop towel just to remove as much oil and dirt as possible. Apply oil on the outside diameter of the seal and place it over the end of the crankshaft with the lip facing the engine. If one is available, it is preferred to use a seal installation tool to push the new seal into place and mentioning that a small oil drain in the separator must be in the lowest position. If the proper tool is not available, a large socket may be placed on the new seal and placed inside the seal bore and tapped in squarely and flush with the edge of the engine block. Finally, fit the driveplate or flywheel back onto the engine or fit the transaxle back into the car.

Genuine Kia Optima Crankshaft Seal

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17 Crankshaft Seals found

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Kia Optima Oil Seal
Part Number: 2142125002
$10.00 MSRP: $14.30
You Save: $4.30 (31%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Seal-Oil
- Replaced by: 214212G100
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
Fits the following Vehicles:
- 2006-2015 Kia Optima | 2.0L - Theta 2, 2.4L - Theta 2, 2.4L - Theta FF | Sedan - 4Door 5P
View related parts
Kia Optima Oil Seal
Part Number: 214212G100
$10.00 MSRP: $14.30
You Save: $4.30 (31%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Seal-Oil
- Replaces: 2142125001, 2142125002, 2142125000
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
Fits the following Vehicles:
- 2006-2020 Kia Optima | High Grade, Middle Grade | 2.0L - Theta 2, 2.4L, 2.4L - Theta 2, 2.4L - Theta FF | 4 Door Sedan, Sedan - 4Door 5P
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Kia Optima Seal-Oil Rear
Part Number: 214432B020
$21.38 MSRP: $30.59
You Save: $9.21 (31%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Rear Main Seal
- Position: Rear
- Replaces: 214432B000, 214432B010
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
Fits the following Vehicles:
- 2016-2020 Kia Optima | 1.6L - GAMMA | Sedan - 4Door 5P
View related parts
Kia Optima Seal-Oil Rear
Part Number: 214432G000
$21.44 MSRP: $30.67
You Save: $9.23 (31%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Rear Main Seal, Rear Seal
- Position: Rear
- Replaces: 2144325000
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
Fits the following Vehicles:
- 2006-2020 Kia Optima | High Grade, Middle Grade | 2.0L - Theta 2, 2.4L, 2.4L - Theta 2, 2.4L - Theta FF | 4 Door Sedan, Sedan - 4Door 5P
View related parts
Kia Optima Seal-Oil Rear
Part Number: 214432A100
$29.70 MSRP: $40.25
You Save: $10.55 (27%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Position: Rear
- Replaced by: 214432A200
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
Fits the following Vehicles:
- 2006-2010 Kia Optima | 2.7L - MU | Sedan - 4Door 5P
View related parts
Kia Optima Oil Seal
Part Number: 214212B030
$8.82 MSRP: $12.62
You Save: $3.80 (31%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Seal-Oil
- Replaces: 214212B020
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
Fits the following Vehicles:
- 2016-2020 Kia Optima | 1.6L - GAMMA | Sedan - 4Door 5P
View related parts
Kia Optima Seal-Oil Rear
Part Number: 2144325000
$22.63 MSRP: $30.67
You Save: $8.04 (27%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Position: Rear
- Replaced by: 214432G000
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
Fits the following Vehicles:
- 2006-2013 Kia Optima | High Grade, Middle Grade | 2.0L - Theta 2, 2.4L, 2.4L - Theta 2, 2.4L - Theta FF | 4 Door Sedan, Sedan - 4Door 5P
View related parts
Kia Optima Oil Seal
Part Number: 2144335510
$29.70 MSRP: $40.25
You Save: $10.55 (27%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Seal-Oil Rear
- Position: Rear
- Replaced by: 214432A200
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
Fits the following Vehicles:
- 2000-2006 Kia Optima | High Grade, Middle Grade | 2.7L | 4 Door Sedan
View related parts
Kia Optima Oil Seal
Part Number: 2142135500
$7.02 MSRP: $9.52
You Save: $2.50 (27%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Seal-Oil
- Replaced by: 2142135011
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
Fits the following Vehicles:
- 2000-2008 Kia Optima | High Grade, Middle Grade | 2.5L, 2.7L, 2.7L - MU | 4 Door Sedan, Sedan - 4Door 5P
View related parts
Kia Optima Seal-Oil Rear
Part Number: 2144335500
$29.70 MSRP: $40.25
You Save: $10.55 (27%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Position: Rear
- Replaced by: 214432A200
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
Fits the following Vehicles:
- 2000-2008 Kia Optima | High Grade, Middle Grade | 2.5L, 2.7L, 2.7L - MU | 4 Door Sedan, Sedan - 4Door 5P
View related parts
Kia Optima Seal-Oil Rear
Part Number: 214433E000
$29.70 MSRP: $40.25
You Save: $10.55 (27%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Position: Rear
- Replaced by: 214432A200
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
Fits the following Vehicles:
- 2006-2008 Kia Optima | 2.7L - MU | Sedan - 4Door 5P
View related parts
Kia Optima Oil Seal
Part Number: 2142135520
$12.82 MSRP: $18.34
You Save: $5.52 (31%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Seal-Oil; Seal
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
Fits the following Vehicles:
- 2006-2010 Kia Optima | 2.7L - MU | Sedan - 4Door 5P
View related parts
Kia Optima Oil Seal
Part Number: 2142125000
$10.00 MSRP: $14.30
You Save: $4.30 (31%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Seal-Oil
- Replaced by: 214212G100
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
Fits the following Vehicles:
- 2006 Kia Optima | High Grade, Middle Grade | 2.4L | 4 Door Sedan
View related parts
Kia Optima Oil Seal
Part Number: 2142125001
$10.00 MSRP: $14.30
You Save: $4.30 (31%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Seal-Oil
- Replaced by: 214212G100
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
Fits the following Vehicles:
- 2006-2008 Kia Optima | 2.4L - Theta FF | Sedan - 4Door 5P
View related parts
Kia Optima Oil Seal
Part Number: 2144338010
$17.13 MSRP: $24.50
You Save: $7.37 (31%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Seal-Oil Rear; Rear Main Seal
- Position: Rear
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
Fits the following Vehicles:
- 2000-2005 Kia Optima | High Grade, Middle Grade | 2.4L | 4 Door Sedan
View related parts
Kia Optima Case-Oil Seal
Part Number: 2144138051
$29.04 MSRP: $41.90
You Save: $12.86 (31%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Case-Oil Seal,Rear; Rear Main Seal Retainer
- Position: Rear
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
Fits the following Vehicles:
- 2000-2005 Kia Optima | High Grade, Middle Grade | 2.4L | 4 Door Sedan
View related parts
Kia Optima Oil Seal
Part Number: 2142133114
Product Specifications
- Other Name: Seal-Oil; Seal
- Warranty: This genuine part is guaranteed by Kia's factory warranty.
Fits the following Vehicles:
- 2000-2005 Kia Optima | High Grade, Middle Grade | 2.4L | 4 Door Sedan

Kia Optima Crankshaft Seal

The Kia Optima Crankshaft Seal prevents the oil in the engine from leaking out and allows the motor to be lubricated and healthy. Positioned at the front end of the crankshaft, this round metal and rubber ring is a tight barrier that blocks pressurized oil from seeping past the spinning shaft. By keeping the lubricant inside the crankcase, the Crankshaft Seal reduces friction, reduces wear, and helps the Kia powerplant go mile after mile. Over years of heat and motion, the Crankshaft Seal can harden or crack, and the first indications of trouble are often noticed by drips on the driveway or a sudden drop in oil level. While the basic task has not changed through Optima generations, small material refinements have been made to increase resistance to heat and flexibility, so newer Optima engines have a longer seal life than earlier engines which relied on simpler rubber blends. Drivers should pay attention to oil stains or increasing mileage counts because replacing a tired Crankshaft Seal before major leakage starts to happen will help protect the Kia engine from expensive damage. Each Crankshaft Seal installed on an Optima is specifically sized for its engine series; hence to ensure a proper fitment and free spinning of the Kia crankshaft without any oil spray.

If you're in search of top-notch, reasonably priced OEM Kia Optima Crankshaft Seal, then you've found the perfect spot. Our website boasts an extensive inventory of Kia Optima Crankshaft Seal, all priced at the market's premier price. Rest assured, every genuine part we offer comes with a warranty straight from the manufacturer.

Kia Optima Crankshaft Seal Parts Questions & Experts Answers

Oil Seal
2142125002
Q: How to remove and install the rear Crankshaft Seal on Kia Optima?
A:
Again, you have to pull out the transaxle; after that, you have to do the same with the driveplate or Flywheel. The Crankshaft Seal is pressed on from the back of the engine therefore pry it off carefully using the seal removing tool or the screwdriver but be careful not to cut or scratch the crankshaft or the seal slot. Wipe down the inside of the seal bore in the block with the shop towel just to remove as much oil and dirt as possible. Apply oil on the outside diameter of the seal and place it over the end of the crankshaft with the lip facing the engine. If one is available, it is preferred to use a seal installation tool to push the new seal into place and mentioning that a small oil drain in the separator must be in the lowest position. If the proper tool is not available, a large socket may be placed on the new seal and placed inside the seal bore and tapped in squarely and flush with the edge of the engine block. Finally, fit the driveplate or flywheel back onto the engine or fit the transaxle back into the car.