How to remove and install a front crankshaft seal correctly in 3.4L V6 engine on GMC Terrain?

Remove the crankshaft pulley and note the installation depth and orientation of the seal, ensuring the new one is installed the same way. Carefully pry the old oil seal out of the timing chain cover using a seal puller or a large screwdriver, taking care not to damage the crankshaft or distort the cover. Apply clean engine oil or multi-purpose grease to the outer edge of the new seal and install it in the cover with the lip facing inward, driving it into place with a seal driver or a large socket and hammer, ensuring it enters squarely and is at the correct depth. Check the pulley hub surface for grooves caused by long-term contact with the seal; if damaged, replace the pulley. Lubricate the pulley hub with clean engine oil and reinstall the crankshaft pulley using a vibration damper installation tool to press it onto the crankshaft, completing the installation in reverse order of removal.

Genuine GMC Terrain Crankshaft Seal

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10 Crankshaft Seals found

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GMC Terrain Seal Assembly, Crankshaft Rear Oil
Part Number: 12591866
$22.22 MSRP: $38.33
You Save: $16.11 (43%)
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Product Specifications
- Other Name: SEAL, Engine Rear Main Bearing; Rear Main Seal
- Position: Rear
- Replaces: 90298408, 90325572, 90280462, 90354378
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2010-2020 GMC Terrain | 4 DOOR SLE2, 4 DOOR SLT1, 4 DOOR SLT2, SLE1 SUV, SLE2 SUV, SLT SUV | 4 Cyl 2.0L, 4 Cyl 2.4L
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GMC Terrain Seal, Crankshaft Front Oil
Part Number: 12584041
$8.90 MSRP: $16.80
You Save: $7.90 (48%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: SEAL, Engine Front Cover & Crankshaft Seal
- Position: Front
- Replaces: 12580989, 55564509, 12609467, 90571925
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2010-2017 GMC Terrain | SLE1 SUV, SLE2 SUV, SLT SUV | 4 Cyl 2.4L
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GMC Terrain Seal Assembly, Crankshaft Front Oil
Part Number: 12626923
$19.78 MSRP: $32.73
You Save: $12.95 (40%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: SEAL, Engine Front Cover & Crankshaft Seal; Crankshaft Seal, Front Crank Seal, Front Seal
- Position: Front
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2018-2020 GMC Terrain | 4 DOOR SLE2, 4 DOOR SLT1, 4 DOOR SLT2 | 4 Cyl 2.0L
View related parts
GMC Terrain Seal,Crankshaft Front Oil
Part Number: 12661527
$12.27 MSRP: $20.32
You Save: $8.05 (40%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: SEAL, Engine Front Cover & Crankshaft Seal
- Position: Front
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2018-2024 GMC Terrain | 4 DOOR SLE2, 4 DOOR SLE2 , 4 DOOR SLT1, 4 DOOR SLT1 , 4 DOOR SLT2 | 4 Cyl 1.5L
View related parts
GMC Terrain Seal,Crankshaft Front Oil
Part Number: 12608750
$7.56 MSRP: $12.52
You Save: $4.96 (40%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: SEAL, Engine Front Cover & Crankshaft Seal
- Position: Front
- Replaces: 12592355
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2010-2017 GMC Terrain | SLE2 SUV, SLT SUV | 6 Cyl 3.0L, 6 Cyl 3.6L
View related parts
GMC Terrain Seal Assembly, Crankshaft Rear Oil
Part Number: 12637710
$41.54 MSRP: $71.66
You Save: $30.12 (43%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: SEAL, Engine Rear Main Bearing; Rear Main Seal, Rear Main Seal Retainer
- Position: Rear
- Replaces: 12608748, 12620955, 12592243, 12592242
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2010-2017 GMC Terrain | SLE2 SUV, SLT SUV | 6 Cyl 3.0L, 6 Cyl 3.6L
View related parts
GMC Terrain Seal, Crankshaft Rear Oil
Part Number: 12653685
$12.30 MSRP: $21.02
You Save: $8.72 (42%)
ADD TO CART
Product Specifications
- Other Name: SEAL, Engine Rear Main Bearing; Rear Main Seal
- Position: Rear
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2018-2024 GMC Terrain | 4 DOOR SLE2, 4 DOOR SLE2 , 4 DOOR SLT1, 4 DOOR SLT1 , 4 DOOR SLT2 | 4 Cyl 1.5L
View related parts
GMC Terrain Seal, Cr/Shf Frt (O Ring)
Part Number: 12693989
$1.32 MSRP: $2.07
You Save: $0.75 (37%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Crankshaft Seal, Front Crank Seal, Front Seal
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2022 GMC Terrain | 4 DOOR SLE2 , 4 DOOR SLT1 , 4 DOOR SLT2 | 4 Cyl 2.0L
View related parts
GMC Terrain Seal Assembly, Crankshaft Rear Oil
Part Number: 55571582
$11.13 MSRP: $17.50
You Save: $6.37 (37%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: SEAL, Engine Rear Main Bearing; Crankshaft Seal, Rear Main Seal
- Position: Rear
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2018-2019 GMC Terrain | 4 DOOR SLE2, 4 DOOR SLT1 | 4 Cyl 1.6L Diesel
View related parts
GMC Terrain Seal Assembly, Crankshaft Front Oil
Part Number: 55596779
$5.68 MSRP: $9.31
You Save: $3.63 (39%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: SEAL, Engine Front Cover & Crankshaft Seal; Front Crank Seal
- Position: Front
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2018-2019 GMC Terrain | 4 DOOR SLE2, 4 DOOR SLT1 | 4 Cyl 1.6L Diesel

GMC Terrain Crankshaft Seal

In this article, the Crankshaft Seal for GMC Terrain automobiles is examined as a functional part situated at the front section of the engine that provides a barrier to oil leakage of the crankcase. This round seal is normally made of a combination of metal and rubber and the main primary function is to uphold engine lubrication so that there can be minimal friction and therefore, less wearing of parts within an engine. A GMC Terrain Crankshaft Seal may degrade with time and especially when used in hard terrain thus requiring replacement by a professional. While the basic design remains consistent, variations may exist across different model years, but the primary function of the Crankshaft Seal remains unchanged: in order to prevent internal wear and to have the engine run thorough out its life without leakage of the required oil.

Each OEM GMC Terrain Crankshaft Seal we offer is competitively priced and comes with the assurance of the manufacturer's warranty for the part. Furthermore, we guarantee the speedy delivery of your orders right to your doorstep. Our hassle-free return policy is also in place for your peace of mind.

GMC Terrain Crankshaft Seal Parts Questions & Experts Answers

Seal, Crankshaft Front Oil
12584041
Q: How to remove and install a front crankshaft seal correctly in 3.4L V6 engine on GMC Terrain?
A: Remove the crankshaft pulley and note the installation depth and orientation of the seal, ensuring the new one is installed the same way. Carefully pry the old oil seal out of the timing chain cover using a seal puller or a large screwdriver, taking care not to damage the crankshaft or distort the cover. Apply clean engine oil or multi-purpose grease to the outer edge of the new seal and install it in the cover with the lip facing inward, driving it into place with a seal driver or a large socket and hammer, ensuring it enters squarely and is at the correct depth. Check the pulley hub surface for grooves caused by long-term contact with the seal; if damaged, replace the pulley. Lubricate the pulley hub with clean engine oil and reinstall the crankshaft pulley using a vibration damper installation tool to press it onto the crankshaft, completing the installation in reverse order of removal.