How to replace the front crankshaft seal on 2006 Chevrolet Avalanche 2500?

The process of replacing the crankshaft front oil seal requires first unfastening the crankshaft balancer by maintaining gentle contact with the engine front cover and the sealing area on the crankshaft. The oil seal at the crankshaft front cover needs removal. The outer sealing surface of the new crankshaft front oil seal requires a small amount of clean engine oil as light lubrication before installation while avoiding oil application on its inner side. The new seal requires positioning inside the front cover with the dimple on its back surface facing the 12 o'clock mark. A Front Cover Oil Seal Installer (J 42851) should be used to place the oil seal properly before it can be removed. Finally, reinstall the crankshaft balancer.

OEM 2006 Chevrolet Avalanche 2500 Crankshaft Seal

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2 Crankshaft Seals found

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2006 Chevrolet Avalanche 2500 Timing Cover Oil Seal, Front Part Number: 12580743
$16.05 MSRP: $26.45
You Save: $10.40 (40%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Seal Assembly-Crankshaft Front Oil; Timing Cover Gasket; Timing Cover Seal; Cover Seal; Front Cover Seal; Seal, Engine Front Cover & Crankshaft Seal; Seal, Engine Crankshaft Front
- Position: Front
- Replaces: 12559279
- Item Weight: 0.40 Pounds
- Item Dimensions: 3.0 x 3.0 x 0.4 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12580743
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2006 Chevrolet Avalanche 2500 Submodels:
- Base, LS, LT | 8 Cyl 8.1 L GAS
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2006 Chevrolet Avalanche 2500 Rear Main Seal Part Number: 12587621
$37.56 MSRP: $63.95
You Save: $26.39 (42%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Seal, Engine Rear Main Bearing; Crankshaft Seal
- Position: Rear
- Replaces: 12559277
- Item Weight: 0.50 Pounds
- Item Dimensions: 5.3 x 5.5 x 0.6 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12587621
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2006 Chevrolet Avalanche 2500 Submodels:
- Base, LS, LT | 8 Cyl 8.1 L GAS

2006 Chevrolet Avalanche 2500 Crankshaft Seal

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2006 Chevrolet Avalanche 2500 Crankshaft Seal Parts and Q&A

Q: How to replace the front crankshaft seal on 2006 Chevrolet Avalanche 2500?
A: The process of replacing the crankshaft front oil seal requires first unfastening the crankshaft balancer by maintaining gentle contact with the engine front cover and the sealing area on the crankshaft. The oil seal at the crankshaft front cover needs removal. The outer sealing surface of the new crankshaft front oil seal requires a small amount of clean engine oil as light lubrication before installation while avoiding oil application on its inner side. The new seal requires positioning inside the front cover with the dimple on its back surface facing the 12 o'clock mark. A Front Cover Oil Seal Installer (J 42851) should be used to place the oil seal properly before it can be removed. Finally, reinstall the crankshaft balancer.