How to replace the rear crankshaft seal on 2006 GMC Sierra 3500?

In order to replace the Crankshaft rear oil seal, first remove the Flywheel. Then install the guide pins out of the Crankshaft rear seal puller (J 43320) into the Crankshaft and put the Crankshaft rear seal puller (J 43320) on top of the guide pins. Driving through the rear Crankshaft seal with an appropriate drill, fix eight self-driving sheet metal screws in a crisscross pattern; these self-tapping screws are attached with Crankshaft rear seal puller (J 43320). Thread the center bolt of the Crankshaft rear seal puller (J 43320), into the Crankshaft to separate the seal, and then after that remove the guide pins from the Crankshaft. Before installing, check the Crankshaft for grit, loose rust, and burr, and correct as required. Spray a very thin layer of oil on the sealing surface of the Crankshaft but not on the sealing surface of the engine block. Apply install the seal onto the Crankshaft rear seal installer (J42849), place it against the Crankshaft, screw the attaching screws into the tapped ones in the Crankshaft. While pressing the center nut until it bottoms out, ensure that you firmly tighten the screws with a screw driver so that the seal is mounted square over the Crankshaft. Lastly, uninstall the Crankshaft rear seal installer (J 42849) and reinstall the Flywheel.

OEM 2006 GMC Sierra 3500 Crankshaft Seal

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5 Crankshaft Seals found

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2006 GMC Sierra 3500 Rear Main Seal
Part Number: 97209342
$46.96 MSRP: $79.94
You Save: $32.98 (42%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Seal, Engine Rear Main Bearing; Crankshaft Seal
- Position: Rear
- Item Weight: 0.70 Pounds
- Item Dimensions: 6.1 x 6.2 x 1.0 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 97209342
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2006 GMC Sierra 3500 Submodels:
- Base, SL, SLE, SLT, WT | 8 Cyl 6.6 L DIESEL
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2006 GMC Sierra 3500 Rear Main Seal
Part Number: 89060436
$24.24 MSRP: $39.93
You Save: $15.69 (40%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Seal Kit, Crankshaft Rear Oil; Crankshaft Seal; Seal Kit, Engine Rear Main Bearing; Seal, Engine Rear Main Bearing
- Position: Rear
- Replaces: 12550574, 12585671, 89018162
- Item Weight: 0.50 Pounds
- Item Dimensions: 5.1 x 5.3 x 1.0 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 89060436
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2006 GMC Sierra 3500 Submodels:
- Base, SL, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS
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2006 GMC Sierra 3500 Timing Cover Oil Seal, Front
Part Number: 12580743
$15.73 MSRP: $25.92
You Save: $10.19 (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 GMC Sierra 3500 Submodels:
- Base, SL, SLE, SLT, WT | 8 Cyl 8.1 L GAS
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2006 GMC Sierra 3500 Front Crank Seal
Part Number: 97209341
$39.66 MSRP: $68.11
You Save: $28.45 (42%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Seal, Engine Crankshaft Front; Timing Cover Gasket; Timing Cover Seal; Front Seal; Cover Seal; Front Cover Seal; Seal, Engine Front Cover & Crankshaft Seal; Seal, Engine Front Cover
- Position: Front
- Item Weight: 0.60 Pounds
- Item Dimensions: 6.1 x 6.3 x 1.0 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 97209341
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2006 GMC Sierra 3500 Submodels:
- Base, SL, SLE, SLT, WT | 8 Cyl 6.6 L DIESEL
View related parts
2006 GMC Sierra 3500 Rear Main Seal
Part Number: 12587621
$36.51 MSRP: $62.70
You Save: $26.19 (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 GMC Sierra 3500 Submodels:
- Base, SL, SLE, SLT, WT | 8 Cyl 8.1 L GAS

2006 GMC Sierra 3500 Crankshaft Seal

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2006 GMC Sierra 3500 Crankshaft Seal Parts Questions & Experts Answers

Q: How to replace the rear crankshaft seal on 2006 GMC Sierra 3500?
A: In order to replace the Crankshaft rear oil seal, first remove the Flywheel. Then install the guide pins out of the Crankshaft rear seal puller (J 43320) into the Crankshaft and put the Crankshaft rear seal puller (J 43320) on top of the guide pins. Driving through the rear Crankshaft seal with an appropriate drill, fix eight self-driving sheet metal screws in a crisscross pattern; these self-tapping screws are attached with Crankshaft rear seal puller (J 43320). Thread the center bolt of the Crankshaft rear seal puller (J 43320), into the Crankshaft to separate the seal, and then after that remove the guide pins from the Crankshaft. Before installing, check the Crankshaft for grit, loose rust, and burr, and correct as required. Spray a very thin layer of oil on the sealing surface of the Crankshaft but not on the sealing surface of the engine block. Apply install the seal onto the Crankshaft rear seal installer (J42849), place it against the Crankshaft, screw the attaching screws into the tapped ones in the Crankshaft. While pressing the center nut until it bottoms out, ensure that you firmly tighten the screws with a screw driver so that the seal is mounted square over the Crankshaft. Lastly, uninstall the Crankshaft rear seal installer (J 42849) and reinstall the Flywheel.