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Harmonic Balancer Bolts
What’s the big deal about harmonic balancer bolts? As the revs of your high-performance engine rise, your crankshaft starts to flex. The harmonic balancer press fit...
What’s the big deal about harmonic balancer bolts? As the revs of your high-performance engine rise, your crankshaft starts to flex. The harmonic balancer press fit to the end absorbs those vibrations, protecting your main bearings and crankshaft bearings while keeping your engine running smoothly. On most engines, a single bolt locks the harmonic balancer in place, so you better make sure it’s a good one—get it from Summit Racing Equipment!
Many stock harmonic balancer bolts are torque-to-yield (TTY) bolts, which means they shouldn’t be reused. So, whether you’re replacing a stock balancer, or upgrading...
What’s the big deal about harmonic balancer bolts? As the revs of your high-performance engine rise, your crankshaft starts to flex. The harmonic balancer press fit to the end absorbs those vibrations, protecting your main bearings and crankshaft bearings while keeping your engine running smoothly. On most engines, a single bolt locks the harmonic balancer in place, so you better make sure it’s a good one—get it from Summit Racing Equipment!
Many stock harmonic balancer bolts are torque-to-yield (TTY) bolts, which means they shouldn’t be reused. So, whether you’re replacing a stock balancer, or upgrading to a durable race-ready model, you should get new hardware for it as well. Most of the bolts we carry are reusable, so your next service or upgrade projects will be even easier!
Summit’s powerful search tools make it simple to find the right harmonic balancer bolt for your application. You can search by Make/Engine to find a stock replacement, or by dimensions, thread count, or tensile strength rating for your aftermarket crank.
Top Brands
With so much of your engine project depending on it, your harmonic balancer bolt should be second to none. That’s why Summit only partners with trusted hardware manufacturers like ARP, ATI Performance Products, Stage 8 Locking Fasteners, Dorman, Milodon, Mr. Gasket, Earl’s Performance, Moroso, and more.
Showing In Stock Items. Show All 10 Items.
Moroso Ultimate-Duty Balancer Bolts
Moroso's Ultimate-Duty balancer bolt kits feature extra-strong steel construction with a large, built-in washer flange that exerts 200,000 psi of clamping force to secure balancers firmly in place under severe conditions. Unlike other brands, these balancer bolts get machined and thread-rolled after heat-treating for superior strength, accuracy, and longevity. Their extra-tall 12-point head accepts deep 5/8 in. sockets to provide a positive grip for removal/installation without stripping, and the large, two in. diameter washer is thick and machined perfectly flat to spread the fastening load over a larger surface area. Select the balancer bolts designed for your application needs.
Not Yet Reviewed
$47.99
Pioneer Harmonic Balancer Bolt Kits
Pioneer harmonic balancer bolt kits make your installation a success. They feature high-tensile strength steel with a hex head, dichromate finish, ground washer, and high-tensile lockwasher. The kits are available for small block and big block applications. Secure your harmonic balancer with a Pioneer bolt kit.
Not Yet Reviewed
$13.99
ATI Harmonic Balancer Bolt Kits
ATI harmonic balancer bolt kits are comprised of extra-strength chromoly steel bolts that can be used with ATI and other popular dampers. The kits are designed for the balancer to crank attachment to secure the balancer in place and keep it there, even under severe conditions.
( 25 )
$24.85
Holley Replacement Harmonic Balancer Bolts
Holley harmonic balancer bolts offer the perfect fit to properly install your harmonic balancer on your engine with a Holley mid-mount accessory drive. The replacement hardware is available for Chevy big block or small block applications. Each one includes a balancer bolt and thick washer. Features: * 180,000 psi rating (Grade 9) * Made from steel * Black E-coat finish * Big block--1/2 in. wrench size * Small block--7/16 in. wrench size
( 3 )
$20.09
ATI Harmonic Damper Hardware
ATI harmonic damper hardware consists of the essential components needed to keep your harmonic damper in place. From bolts to flathead screws and retaining screws with integral washers, all ATI components are made from quality materials to last.
( 45 )
$14.99
ARP Balancer Bolts
As the crankshaft flexes, the balancer absorbs incredible amounts of energy. ARP balancer bolt kits will ensure that your balancer is locked into position. They feature a 12-point head that accepts a deep socket to eliminate the fear of stripping the head.
( 627 )
$27.99
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$35.99
Milodon Harmonic Balancer Bolts
Milodon balancer bolts are necessary components for any serious engine builder. When a balancer is not properly attached, not only is it dangerous, but it will not do its job of protecting the crack bearings properly. These Grade 8, heat-treated, and thread-rolled steel bolts feature a hex-style head for easy torquing and engine turning by hand. They come available in different thread sizes and underhead lengths to best suit your application needs.
( 30 )
$14.95
PRW Harmonic Damper Bolts
PRW harmonic damper bolts help hold your balancer properly locked in place as they absorb the massive energy from crankshaft flexing. Professionally designed to withstand 180,000 psi fastener yield strength, they also include a wide-area 1/4 in. thick washer to further spread the fastening load. For installation ease, these bolts feature a deep-socket, 12-point head-style so your torque wrench stays fully engaged up to spec. Show your knuckles some mercy--complete your install with PRW harmonic damper bolts. Order the bolt recommended for your specific vehicle and engine size.
( 10 )
$22.86
On Sale
Mr. Gasket Harmonic Balancer Bolt Kits
These bolts are made of a Grade 8 alloy and are heat-treated for extra strength. They feature a high hex head to prevent socket slippage and an extra-thick washer to allow for a more accurate, uniform torque.
( 8 )
$31.48
$20.97
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$32.23
