The 7 Best Crankshaft Main Seals (2022 reviews)

Best part: Gm Crankshaft Main Seal is reasonable and it is available to ship in 24 hours. The gm crankshaft main seal works well for bolts up like a factory and it is fitment. Make sure this fits by entering your model number. Also, it can be repaired with genuine part, it does the job and has good design. Finally, the gm crankshaft main seal would be perfect for fast shipping, It fits well and has a perfect design.

Almost all buyers quickly discovered that the seal fits a 2003 hummer h2. In addition, they strongly agree that the seal does not, You would need part number #12581714. And, they say that the seal will fit a 2004 yukon denali.

Top Customer Quotes:

The main seal was preinstalled, the oe tools would not work anyway.
This is perfect and made repairing the rear engine cover leak a simple process.
This is a gm part for ls motors.
This will be 4.8, 5.3 or a 6.0.

Best For Direct Replacement: E-Cowlboy Crankshaft Main Seal

Buy on Amazon

The E-Cowlboy Crankshaft Main Seal should be able to handle its purpose and duties with ease. The e-cowlboy crankshaft main seal is made from high standard carbon steel which can withstand corrosion, rust and impact, Its heavy duty construction ensures an unparalleled long lifespan. If you're not 100% satisfied with your tool, simply return it for a full refund in 30 days, guaranteed with 12 months’ warranty. Further, it will fit the newest cummins seal perfectly.

Most importantly, the e-cowlboy crankshaft main seal comes with a satisfaction guarantee, it is fitment and has 1st design.

Almost all buyers quickly discovered that the seal would fit a 5.9 cummins. In addition, a few say that the seal is not compatible with cat engines. Moreover, a few strongly agree that the seal is used for 550 hp.

Top Customer Quotes:

The tool worked perfectly & made the removal & installing of the seal easy.
This is perfect for a great tool and has a perfect design.
This is great for installing a new seal.

Best For Temperature Range: National Oil Seals Crankshaft Main Seal

Buy on Amazon

Next on the list, we've got yet another seal that manages to win our hearts. It's the National Oil Seals Crankshaft Main Seal and it's widely considered as the seal that has the most suitable features. Make sure this fits by entering your model number. In addition, the seal can be of good quality, It is suitable for temperature range and has an excellent design. In conclusion, with a 4.6 rating and more than 304 buyers, the national oil seals crankshaft main seal stands as the best choice.

Most buyers opine that the seal will work on 2003 honda civic and yes is the rear crankshaft seal aka rear main seal. Overall, many buyers have used the national oil seals crankshaft mainseal for more than a few months without any problems, and it shows no sign of giving up.

Customers also found that its wise to buy a replacing front crankshaft seal, along with this seal.

Why We Like This:

Temperature range: -80°f to 350°f / -62°c to 176°c.
Delivers quality and reliable performance for every type of repair.
Lot of satisfied buyers.

Best For Rust Resistance: Pqy Crankshaft Main Seal

Buy on Amazon

If you often find yourself scrambling for an appropriate and satisfactory seal, Pqy Crankshaft Main Seal should be your first option for buying. The pqy crankshaftmain seal is made of high quality aluminum. The Manufacturer says: If you have any problems, please send us mail, and we will reply to you within 24 hours except weekends and holidays. Further, it is difficult to install seals properly without the tool.

Finally, the pqy crankshaft main seal is great for rust resistance and it is durable to use.

Without any doubt, this seal passed the test and had very satisfied buyers eager to share their experience.

Why We Like This:

Package included: 1x front main crank seal driver+1x rear main crank seal driver.
Perfprmance:designed to correctly fix the front and rear main seals.
Material: made of high quality aluminum.great strength, rust-resistance and durable to use.
Compatible with:01-16 gm 6.6 6.6l duramax diesel.

Best With Part Number: Bonbo Crankshaft Main Seal

Buy on Amazon

We would, of course, be remiss if we didn't mention the Bonbo Crankshaft Main Seal for daily usage. The bonbo crankshaft main seal is made of high quality carbon steel for great strength, preventing corrosion and rust, impact resistance, sturdy and durable. Direct replacement for oem part number 3164780 3162994 4965569, saving you time, money and energy. The rear seal and wear ring is automatically installed to the proper depth with this specialty tool 3164780, prevents damaging the rear seal and leakage.

The seal is perfectly suitable for cummins isx qsx isx15 isx12 diesel engines. Lastly, the bonbo crankshaftmain seal comes with a satisfaction guarantee and it makes for great compatibility.

Why We Like This:

This works well for direct replacement and it is used for high precision.
This specialty tool 3164780 helps reduce the risk of crankshaft seal surface damage during removal.
New and hot releases.

Best For High Hardness: Dptool Crankshaft Main Seal

Buy on Amazon

The Dptool Crankshaft Main Seal is suitable and reliable and fits well with your regular use. The dptool crankshaft mainseal is compatible with the bmw n40 n42 n45 n45t n46 n46t n52 n53 n54 n55 engine, the equivalent part number. Manufacturer says: We offer a 12 month warranty, We will replace or refund, if our tool has any quality problems. This crankshaft seal remover installer functions the same as the oem, which could accurate fit n40 n42 n45 n45 t n46 n46 t n52 n53 n54 n55 engine.

Most importantly, the dptool crankshaft main seal is made for high hardness and it is strong.

One customer says - "Take your time and ensure everything is set properly. ". Almost all buyers agree that the seal is probably not even in the same league as the more expensive options as far as quality.

Why We Like This:

Material: made of carbon steel, high quality which can ensure a longer service lifetime.
This works well for good quality and it is easy to carry.
Good brand reputation.

Best With Wear Sleeve: Wnseu Crankshaft Main Seal

Buy on Amazon

The Wnseu Crankshaft Main Seal gives the top-tier seals a run for their money by offering flagship specs at a much more affordable price. In addition, the seal is compatible with cummins qsx isx isx12 isx15. Make sure this fits by entering your model number. Lastly, the wnseu crankshaft main seal is made of high-quality steel.

Why We Like This:

Delivers what they promise.
One of the newcomers and featured product.