The 8 Best Ls3 Harmonic Balancer Bolts (2022 reviews)

Proform ls3 harmonic balancer bolt is the epitome of what a great bolt should be. The Proform Ls3 Harmonic Balancer Bolt works very well and it is more. Make sure this fits by entering your model number. These tools have a thrust bearing and a protective washer which allows the drive nut to rotate freely so the balancer is pressed on smoothly and evenly.

The bolt is very smooth and it is designed for a great price. And, this uses a pilot stud, which keeps the harmonic balancer perpendicular to the crankshaft's centerline, for a bind-free installation. Finally, the proform ls3 harmonic balancer bolt works great, worked perfectly and it is great for good quality.

Most customers agree that the bolt fits small/big block chevy cranks. Moreover, a few say that the bolt will not work on ls engines. And, a few strongly agree that this tool is designed to work on 305 and 350 on one end. With no doubts, this bolt passed the test and had very satisfied buyers eager to share their experience.

Top Customer Quotes:

This fits a 4.0 jeep and also works well on gen-6 454.
This is listed as universal on the summit website.
This is made of highly durable material.
Pilot stud for the harmonic balancer to be perpendicular.

Best With Part Number: Ict Billet Ls3 Harmonic Balancer Bolt

Buy on Amazon

The Ict Billet Ls3 Harmonic Balancer Bolt's high-end materials make sure that it ages well with use. The ict billet ls3 harmonic balancer bolt is a genuine gm oem bolt. Make sure this fits by entering your model number. Further, it is manufactured in the USA for reliability.

The bolt works with part number, does the job and it is for super fast shipping. Above all, the ict billet ls3 harmonic balancer bolt worked perfectly and it is great with fast shipping.

Almost all customers quickly discovered that the bolt was for ls or a v8 gm engine 99. In addition, a few say that the bolt is about 200 to 225 ft lbs so use a good strong 1/2 impact wrench to remove it. In addition, they strongly agree that this particular nolt is a stretch bolt designed for the gm ls1 engine. In short, the tone of buyers is very positive and we believe that the bolt suits the purpose.

Top Customer Quotes:

The Manufacturer says: our goal is to use as many as.
This provides reliable service and it is sturdy.
This fits tahoe’s or trucks 5.3 or 6.0.
This is for an ls based motor.

Best For Good Quality: Y-Autopart Ls3 Harmonic Balancer Bolt

Buy on Amazon

Next on the list, we've got yet another bolt that manages to win our hearts. It's the Y-Autopart Ls3 Harmonic Balancer Bolt and it's widely considered as the bolt that has the most suitable features. The y-autopart ls3 harmonic balancer bolt fits perfectly and is designed for 2 x washers, It is ideal for corrosion resistance and has a nice design. Durable and useful, long-lasting service your balancer. Also, this is a must have for engine swaps or upgrading the balancer.

The bolt comes with a package including 1 x threaded rod, is easy to use, it is more and has a great design. Most importantly, the y-autopart ls3 harmonic balancer bolt will not break in the crank while installing the harmonic balancer.

Most buyers opine that the bolt is perfect for occasional use. In addition, they say that the crankshaft pulley bolt is a one - time use torque to yield bolt, which is why you need a new one. To sum up, the tone of buyers is very positive and we believe that the bolt suits the purpose.

Why We Like This:

This is great for 1 x nut and it is fitment.
Package included: 1 x threaded rod, 1 x nut, 2 x washers.
This fits all gm based LS engines.
Great for installing the harmonic balancer on your ls based engine.

Best For Simple Installation: Seeboo Ls3 Harmonic Balancer Bolt

Buy on Amazon

The Seeboo Ls3 Harmonic Balancer Bolt gives the top-tier bolt a run for their money by offering flagship specs at a much more affordable price. The seeboo ls3 harmonicbalancer bolt is made of high-quality alloy structural steel material 35crmo, with a strength of 10.9 grade, excellent solidity and durability, and the surface has undergone strict anti-rust treatment. This tool is long enough, You only need to screw it into the crankshaft and use the nut to push the crankshaft pulley into place. The crank strength of the harmonic balancer installation tool is 10.9, and it is made of high - quality 35crmo heavy steel.

Finally, the seeboo ls3 harmonic balancer bolt is good for simple installation, is made rust-proof and it provides great value.

To sum up, for most buyers, Seeboo product was the most suitable.

Why We Like This:

【 package includes 】— 1*stud, 2*washer,1*flange nut.
This is compatible with Chevrolet gm ls and lt series.
You can also search for your matching models through amazon to purchase.
This is required for engine replacement or balancer upgrades.

Best For High Precision: E-Cowlboy Ls3 Harmonic Balancer Bolt

Buy on Amazon

Next on the list, we've got yet another bolt that manages to win our hearts. It's the E-Cowlboy Ls3 Harmonic Balancer Bolt and it's widely considered as one of the most convenient bolt you can buy. The e-cowlboy ls3harmonic balancer bolt is great for superior quality, comes with a satisfaction guarantee and it is good for good quality. Fit for Chevrolet gen iii/iv small block 4.8l / 5.3l / 5.7l / 6.0l / 6.2l engines. In addition, this includes a 14" thick, wide area washer and an extra tall 12.

Most importantly, the e-cowlboy ls3 harmonic balancerbolt is black and it is designed for a longer service life.

One customer says - "Be sure to have the special 12pt socket as it's likely not in your tools. ". Most customers agree that the bolt comes with assembly lube and also the bolt is a knock - off but worked fine, without issues. In short, at the price, they believe that they got a steal of a deal with it.

Why We Like This:

This is incredible and it makes for great compatibility.
Professional & sincere service allows you to take no risks by purchasing an e-cowlboy.
These damper bolt kits will ensure that your balancer is locked into position.

Best For Direct Replacement: Michigan Motorsports Ls3 Harmonic Balancer Bolt

Buy on Amazon

Compared with other bolt in this category, the Michigan motorsports ls3 harmonic balancer bolt has a convenient design. The Michigan motorsports ls3 harmonic balancer bolt works great and it is easy to install. Make sure this fits by entering your model number. Further, this will fit all gm gen 3, 4, & 5 series engines. Most importantly, the Michigan motorsports ls3harmonic balancer bolt is a genuine gm oem bolt.

Therefore, customers were very happy to recommend it to friends and families.

Why We Like This:

Compatible with part numbers: 12557840 917-139 harmonicbalancer bolt.
Direct replacement for a proper fit. No special tools required. Easy to install.
Good brand reputation.

Best For Heavy Duty: Yoursme Ls3 Harmonic Balancer Bolt

Buy on Amazon

The Yoursme Ls3 Harmonic Balancer Bolt is suitable and reliable and fits well with your daily use. The yoursme ls3 harmonic balancerbolt is made from premium grade heat-treat heavy duty steel, galvanized steel nuts and aluminum washers, durable, anti-corrosion and anti-rust. You can simply return it if you are not satisfied with the product. In addition, this is current and it comes with a satisfaction guarantee.

The bolt is a must have for engine swaps or upgrading the balancer. Finally, the yoursme ls3 harmonic balancer bolt is not compatible with ls7 ls9 lt4 lt5.

In conclusion, for most customers, Yoursm product was what they were looking for.

Why We Like This:

Manufacturer says: we support a 30 - day full refund for return and a 12 - month warranty.
Delivers what they promise.

Best For Country Of Origin: Gm Ls3 Harmonic Balancer Bolt

Buy on Amazon

The Gm Ls3 Harmonic Balancer Bolt is satisfactory and appropriate and fits well with your daily purpose. The gm ls3 harmonic balancer bolt is more, fits perfectly, It is great with good packaging and has a perfect design. This original equipment engine harmonic balancer has been manufactured to fit your gm vehicle, providing the same performance, durability, and service life you expect from general motors. Moreover, the bolt works great, It is easy to install and has a great design. Above all, the gm ls3 harmonic balancer bolt is good for country of origin and it is good for fast delivery.

Almost all buyers agree that the bolt is perfect with zero issues. Further, they say that the bolt is for truck spacing and ls3 out of 2010 and up ss camaro. Further, a few strongly agree that the bolt is a perfect fit, making the job so much easier.

Customers say that getting a l harmonic balancer bolt, along with bolt is useful.

Top Customer Quotes:

This is great for a 2002 chevy 1500 with a 5.3l.
This includes the pulley for the main serpentine belt and the air conditioning belt.
The package width of the product is 8.3 inches.
To shorten the package length of the product is 8.8 inches.