How to Replace a Crankshaft Seal on Chevrolet Astro?

To replace the crankshaft rear oil seal, dismantle out the Transmission Assembly and the engine Flywheel. Afterwards, apply an appropriate tool to delicately pry off the crankshaft rear oil seal from its housing and dispose of the old seal. Clean out any dirt or rust before adding a small amount (2 to 3 drops) of clean engine oil on the bore of the crankshaft rear oil seal housing, flywheels pilot flange diameter, Flywheel locator pin outside diameter, and Crankshaft Seal surface. Check the j35621-b rear main seal installer (J35621-B) for flaws and eliminate slight irregularities using least grade emery cloth, without any oil or lubricants getting to the lip surface. Take off the sleeve of the crankshaft rear oil seal and apply some clean engine oil in the amount (2 to 3 drops) at the outside diameter of the seat. Mount the crankshaft rear oil seal to the j35621-b and then on the rear of the crankshaft by hand-tightening the tool bolts until tight. Proper alignment is critical; confirm that the seal is close flush and square to the housing. Rotate the j35621-b wing nut clockwise until its sealing is done properly, as there is a greater resistance at the bottom of the housing bore. Cut the j35621-b away from the seal, and pull it out of the crankshaft. Remove all extra engine oil using clean rag get engine Flywheel and the Transmission Assembly back in place.

OEM Chevrolet Astro Crankshaft Seal

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6 Crankshaft Seals found

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Chevrolet Astro Rear Main Seal, Front
Part Number: 14090906
$21.11 MSRP: $39.63
You Save: $18.52 (47%)
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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:
- 1985-1994 Chevrolet Astro | Base, CL, CS, LT | 4 Cyl 2.5 L GAS, 6 Cyl 4.3 L GAS
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Chevrolet Astro Rear Main Seal
Part Number: 10088158
$33.59 MSRP: $55.35
You Save: $21.76 (40%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Seal, Engine Rear Main Bearing; Crankshaft Seal; Cover Seal; Rear Main Seal Retainer
- Position: Rear
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1985-1996 Chevrolet Astro | Base, CL, CS, LS, LT | 6 Cyl 4.3 L GAS
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Chevrolet Astro Oil Seal, Front
Part Number: 10128316
$21.07 MSRP: $39.56
You Save: $18.49 (47%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Seal, Engine Front Cover & Crankshaft Seal; Timing Cover Gasket; Timing Cover Seal; Oil Filter Seal; Front Seal; Timing Cover Oil Seal; Crankshaft Seal
- Position: Front
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1992-2005 Chevrolet Astro | Base, CL, CS, LS, LT | 6 Cyl 4.3 L GAS
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Chevrolet Astro Rear Main Seal
Part Number: 89018163
$26.91 MSRP: $44.34
You Save: $17.43 (40%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Seal Kit, Crankshaft Rear Oil; Crankshaft Seal; Seal Kit, Engine Rear Main Bearing
- Position: Rear
- Replaces: 12555769
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1999-2005 Chevrolet Astro | Base, LS, LT | 6 Cyl 4.3 L GAS
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Chevrolet Astro Rear Main Seal
Part Number: 12554314
$38.36 MSRP: $60.08
You Save: $21.72 (37%)
Ships in 1-3 Business Days
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:
- 1997-1998 Chevrolet Astro | Base, LS, LT | 6 Cyl 4.3 L GAS
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Chevrolet Astro Rear Main Seal
Part Number: 10036788
$15.88 MSRP: $24.87
You Save: $8.99 (37%)
Ships in 1-2 Business Days
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:
- 1985-1990 Chevrolet Astro | Base, CL, CS | 4 Cyl 2.5 L GAS

Chevrolet Astro Crankshaft Seal

Our website offers an extensive catalog of genuine Chevrolet Astro Crankshaft Seal at unbeatable prices. Every OEM Chevrolet Astro Crankshaft Seal comes with a manufacturer's warranty, an easy return policy, and rapid delivery service. Don't miss out on this great opportunity!

Chevrolet Astro Crankshaft Seal Parts Questions & Experts Answers

Oil Seal, Front
10128316
Q: How to Replace a Crankshaft Seal on Chevrolet Astro?
A: To replace the crankshaft rear oil seal, dismantle out the Transmission Assembly and the engine Flywheel. Afterwards, apply an appropriate tool to delicately pry off the crankshaft rear oil seal from its housing and dispose of the old seal. Clean out any dirt or rust before adding a small amount (2 to 3 drops) of clean engine oil on the bore of the crankshaft rear oil seal housing, flywheels pilot flange diameter, Flywheel locator pin outside diameter, and Crankshaft Seal surface. Check the j35621-b rear main seal installer (J35621-B) for flaws and eliminate slight irregularities using least grade emery cloth, without any oil or lubricants getting to the lip surface. Take off the sleeve of the crankshaft rear oil seal and apply some clean engine oil in the amount (2 to 3 drops) at the outside diameter of the seat. Mount the crankshaft rear oil seal to the j35621-b and then on the rear of the crankshaft by hand-tightening the tool bolts until tight. Proper alignment is critical; confirm that the seal is close flush and square to the housing. Rotate the j35621-b wing nut clockwise until its sealing is done properly, as there is a greater resistance at the bottom of the housing bore. Cut the j35621-b away from the seal, and pull it out of the crankshaft. Remove all extra engine oil using clean rag get engine Flywheel and the Transmission Assembly back in place.