How to replace the rear crankshaft seal and housing on Buick Regal?

Start by jacking up the vehicle and putting it on supports. Next, drain both the cooling system and engine oil to minimize cleanup. Next, take out the engine Flywheel and Oil Pan, removing the Crankshaft rear oil seal housing bolts and then the housing. Make sure not to scratch or mark the Crankshaft as you lift the housing off. Take out the old Crankshaft rear oil seal and gaskets from the housing and the cylinder block, checking and repairing or replacing the Crankshaft bore and outside diameter surfaces if they exhibit any defects. Use a gasket scraper to remove the old gasket, then place a new gasket on the bolts before mating the housing and the cylinder block. Align the housing carefully before securing it and don't forget to tighten the bolts just enough for initial installation. Coat the (J 41349) gripping ring on both sides with a small amount of oil and then slide it over the Crankshaft, turning as you go. Measure the step height at both sides of the housing and adjust it if necessary until each side's maximum step is less than 0.004 inch or 0.1016 mm. Replacement of the housing may be necessary if correcting its position is beyond the allowable range. Tighten the housing bolts to 15 nm (11 ft. Lbs.) and then rotate them an extra 50 degrees with the (J 36660-A) tool. Remove the plug and determine if the step height is within specifications. If the alignment needs adjustment, follow the earlier steps once more. After completing all the other steps, replace the new Crankshaft rear oil seal, Oil Pan and engine Flywheel. Then lower the vehicle to the ground, refill the engine cooling system and crankcase with engine oil and check for leaks.

How to replace the front crankshaft seal on Buick Regal?

Begin the crankshaft front oil seal replacement by removing the crankshaft balancer while protecting the crankshaft from any harm. Using a flat bladed tool such as a large screwdriver replace the crankshaft front oil seal while protecting the crankshaft front oil seal bore and all contact surfaces. Scrutinize both the crankshaft balancer and the engine front cover for any detected scratches. The new crankshaft front oil seal installation requires the Seal Installer (J 35354-A) which properly seats the seal through torque bolt tightening in the engine front cover. Reinstall the crankshaft balancer and check for leaks before completing the CKP system variation learn procedure after removing the Seal Installer (J 35354-A).

OEM Buick Regal Crankshaft Seal

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9 Crankshaft Seals found

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Buick Regal Rear Main Seal, Green Line Part Number: 12591866
$22.96 MSRP: $39.10
You Save: $16.14 (42%)
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Product Specifications
- Other Name: Seal, Engine Rear Main Bearing; Engine Crankshaft Seal; Crankshaft Seal
- Position: Rear
- Replaces: 90298408, 90325572, 90280462, 90354378
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2011-2017 Buick Regal | Base, CXL, GS, Premium, Sport Touring | 4 Cyl 2.0 L FLEX, 4 Cyl 2.0 L GAS, 4 Cyl 2.4 L FLEX, 4 Cyl 2.4 L GAS, 4 Cyl 2.4 L MILD HYBRID EV-GAS (MHEV)
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Buick Regal Rear Main Seal, Front Part Number: 14090906
$21.53 MSRP: $35.47
You Save: $13.94 (40%)
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Product Specifications
- Other Name: Seal, Engine Front Cover & Crankshaft Seal; Timing Cover Gasket; Timing Cover Seal; Oil Seal; Crankshaft Seal; Front Crank Seal; Timing Cover Seal; Front Cover Seal; Engine Front Cover Seal.
- Position: Front
- Replaces: 12577710
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1988-1996 Buick Regal | Custom, Gran Sport, Limited | 6 Cyl 2.8 L GAS, 6 Cyl 3.1 L GAS
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Buick Regal Crankshaft Seal, Front Part Number: 12626923
$19.87 MSRP: $32.73
You Save: $12.86 (40%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Seal Assembly-Crankshaft Front Oil; Front Crank Seal; Front Seal; Seal, Engine Front Cover & Crankshaft Seal
- Position: Front
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2014-2017 Buick Regal | Base, GS, Premium, Sport Touring | 4 Cyl 2.0 L GAS
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Buick Regal Rear Main Seal Part Number: 12592195
$45.01 MSRP: $76.64
You Save: $31.63 (42%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Seal, Engine Rear Main Bearing; Crankshaft Seal; Timing Cover Seal; Rear Main Seal Retainer; Seal Kit, Engine Rear Main Bearing
- Position: Rear
- Replaces: 14085829
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1992-1996 Buick Regal | Custom, Limited | 6 Cyl 3.1 L GAS
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Buick Regal Rear Main Seal Part Number: 12582320
$24.58 MSRP: $40.49
You Save: $15.91 (40%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Seal, Engine Rear Main Bearing; Crankshaft Seal; Seal
- Position: Rear
- Replaces: 25534760
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1990-2004 Buick Regal | 25th Anniversary Edition, Custom, Gran Sport, GS, GSE, Limited, LS, LSE, Olympic Gold Edition | 6 Cyl 3.8 L GAS
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Buick Regal Crankshaft Seal, Front Part Number: 12582313
$14.72 MSRP: $24.24
You Save: $9.52 (40%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Seal Assembly-Crankshaft Front Oil; Timing Cover Gasket; Timing Cover Seal; Front Seal; Cover Seal; Crankshaft Balance Seal; Timing Cover Seal; Engine Front Cover Seal
- Position: Front
- Replaces: 24504098
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1990-2004 Buick Regal | 25th Anniversary Edition, Custom, Gran Sport, GS, GSE, Limited, LS, LSE, Olympic Gold Edition | 6 Cyl 3.8 L GAS
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Buick Regal Oil Seal, Green Line, Front Part Number: 12584041
$9.13 MSRP: $15.04
You Save: $5.91 (40%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Seal-Crankshaft Front Oil; Engine Crankshaft & Camshaft Seals; Timing Cover Gasket & Seal.; Front Crank Seal; Timing Cover Front Seal; Engine Front Cover & Crankshaft Seal; Oil Pump Body Seal.
- Position: Front
- Replaces: 12580989, 55564509, 12609467, 90571925
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2011-2017 Buick Regal | Base, CXL, GS, Premium | 4 Cyl 2.0 L FLEX, 4 Cyl 2.4 L FLEX, 4 Cyl 2.4 L GAS, 4 Cyl 2.4 L MILD HYBRID EV-GAS (MHEV)
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Buick Regal Rear Main Seal Part Number: 24500058
$13.11
ADD TO CART
Product Specifications
- Other Name: Seal, Engine Rear Main Bearing; Crankshaft Seal
- Position: Rear
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1992-1995 Buick Regal | Custom, Gran Sport, Limited | 6 Cyl 3.8 L GAS
View related parts
Buick Regal Oil Seal Part Number: 552711
Product Specifications
- Other Name: Seal Assembly-Crankshaft Oil; Timing Cover Gasket; Timing Cover Seal; Crankshaft Seal; Front Crank Seal; Timing Cover Oil Seal; Front Cover Seal; Seal, Engine Front Cover & Crankshaft Seal
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1984-1987 Buick Regal | Base, Limited | 6 Cyl 4.3 L DIESEL, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L DIESEL

Buick Regal Crankshaft Seal

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Buick Regal cars' Crankshaft Seal is another important part situated within the front of the car at the engine part. Usually an aluminium rubber product it is circumferential in shape and it is always attached to the crankcase in order to minimize the chances of oil spillage. The Crankshaft Seal keeps every part of the engine protected and minimizes friction resulting in wear and tear of critical components of the engine. If there are such indications as high or unknown number of runs oracus oil leakage, then it is necessary to change the Crankshaft Seal in order to ensure the normal functioning of the engine.

Buick Regal Crankshaft Seal Parts and Q&A

Rear Main Seal
12582320
Q: How to replace the rear crankshaft seal and housing on Buick Regal?
A:
Start by jacking up the vehicle and putting it on supports. Next, drain both the cooling system and engine oil to minimize cleanup. Next, take out the engine Flywheel and Oil Pan, removing the Crankshaft rear oil seal housing bolts and then the housing. Make sure not to scratch or mark the Crankshaft as you lift the housing off. Take out the old Crankshaft rear oil seal and gaskets from the housing and the cylinder block, checking and repairing or replacing the Crankshaft bore and outside diameter surfaces if they exhibit any defects. Use a gasket scraper to remove the old gasket, then place a new gasket on the bolts before mating the housing and the cylinder block. Align the housing carefully before securing it and don't forget to tighten the bolts just enough for initial installation. Coat the (J 41349) gripping ring on both sides with a small amount of oil and then slide it over the Crankshaft, turning as you go. Measure the step height at both sides of the housing and adjust it if necessary until each side's maximum step is less than 0.004 inch or 0.1016 mm. Replacement of the housing may be necessary if correcting its position is beyond the allowable range. Tighten the housing bolts to 15 nm (11 ft. Lbs.) and then rotate them an extra 50 degrees with the (J 36660-A) tool. Remove the plug and determine if the step height is within specifications. If the alignment needs adjustment, follow the earlier steps once more. After completing all the other steps, replace the new Crankshaft rear oil seal, Oil Pan and engine Flywheel. Then lower the vehicle to the ground, refill the engine cooling system and crankcase with engine oil and check for leaks.
Crankshaft Seal, Front
12582313
Q: How to replace the front crankshaft seal on Buick Regal?
A:
Begin the crankshaft front oil seal replacement by removing the crankshaft balancer while protecting the crankshaft from any harm. Using a flat bladed tool such as a large screwdriver replace the crankshaft front oil seal while protecting the crankshaft front oil seal bore and all contact surfaces. Scrutinize both the crankshaft balancer and the engine front cover for any detected scratches. The new crankshaft front oil seal installation requires the Seal Installer (J 35354-A) which properly seats the seal through torque bolt tightening in the engine front cover. Reinstall the crankshaft balancer and check for leaks before completing the CKP system variation learn procedure after removing the Seal Installer (J 35354-A).