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...

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.

Individual Parts

Part Groups

Results 1 - 25 of 206

Fluidampr Harmonic Balancer Installation Kits 300010

Installation Kit, Harmonic Balancer, 8740 Chromoly, Black Oxide, Duramax, Kit

Part Number: FLU-300010

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Summit Racing™ Harmonic Balancer Bolts SUM-910310

Harmonic Balancer Bolts, Harmonic Balancer Bolt Kits, External Hex Head, 3/4 in.-16 Thread, Steel, Black Oxide, Chrysler, Dodge, Plymouth, V8, Each

Part Number: SUM-910310

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Fluidampr Harmonic Balancer Installation Kits 300007

Installation Kit, Harmonic Balancer, 8740 Chromoly, Black Oxide, Up To 700HP/1,250 lb-ft Torque, Cummins, Kit

Part Number: FLU-300007

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Earl's Performance Harmonic Balancer Bolts DBT-004ERL

Harmonic Balancer Bolts, 12-point Head, 4135 Chromoly, Black Oxide, 4.330 in. Underhead Length, Chevrolet, Small Block LS, Each

Part Number: EAR-DBT-004ERL

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

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Fluidampr Harmonic Balancer Installation Kits 300009

Installation Kit, Harmonic Balancer, 8740 Chromoly, Black Oxide, Cummins, Kit

Part Number: FLU-300009

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

ARP Balancer Bolts 147-2503

ARP Balancer Bolts 147-2503

Harmonic Balancer Bolts, 12-point, 12mm x 1.25, Chromoly, Black Oxide, Dodge, Ram, 6.7L Diesel, Set of 4

Part Number: ARP-147-2503

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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ARP Balancer Bolts 180-2502

Square Drive Damper Bolts, Oldsmobile, 1/2" Square Drive

Part Number: ARP-180-2502

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

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ARP Balancer Bolts 207-2501

Harmonic Balancer Bolt, 12-point, Chromoly, Black Oxide, M14-1.500 in. Thread, Mitsubishi, 2.0L DOHC, Each

Part Number: ARP-207-2501

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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ATI Harmonic Damper Hardware ATI950233

Bolt, Harmonic Damper Hardware, Hex Head, 3/4 in. Thread Size, 3 in., Grade 8 Steel, Zinc Plated, Mopar, Each

Part Number: ATI-950233

4.0 out of 5 stars ( 5 )

Estimated Ship Date: Tomorrow

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Dorman Harmonic Balancer Bolts 926-886

Harmonic Balancer Bolt

Part Number: RNB-926-886

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

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ARP Balancer Bolts 190-2502

Harmonic Balancer Bolt, Chromoly, Black Oxide, Square Drive, Pontiac V8, Each

Part Number: ARP-190-2502

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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Pioneer Harmonic Balancer Bolt Kits 859012

Harmonic Balancer Bolt, Hex Head, Steel, Yellow Zinc Dichromate, Chevy, Small Block, Each

Part Number: PIO-859012

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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ATI Harmonic Damper Hardware ATI951501

Bolt, Harmonic Balancer, Hex-Head, Steel, Black Oxide, 7/16 in.-20, Chevy, Each

Part Number: ATI-951501

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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ATI Harmonic Balancer Bolt Kits ATI950226

Harmonic Balancer Bolts, Torx Head, Steel, Black, 5/16 in.-18 RH Thread Size, 0.750 in. Underhead Length, Set of 9

Part Number: ATI-950226

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Stage 8 Locking Harmonic Balancer Bolt Kits 8995

MOPAR BALANCER BOLT

Part Number: STG-8995

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jun 9, 2025 if ordered today

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Estimated Ship Date: Jun 9, 2025 if ordered today

ATI Harmonic Balancer Bolt Kits ATI950210

Harmonic Balancer Bolt, Chromoly, Black Oxide, Mopar, Samll Block LA, Big Block B/RB, Set of 6

Part Number: ATI-950210

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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ATI Harmonic Damper Hardware ATI950232

Bolt, Harmonic Damper Hardware, Hex Head, 1/2 in. Thread Size, Chromoly, Black Oxide, Washer, Chevy, Big Block, Each

Part Number: ATI-950232

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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ATI Harmonic Balancer Bolt Kits ATI950215

Harmonic Balancer Bolt Kit, 12-point, Chromoly, Washers Included, Duramax Diesel, Kit

Part Number: ATI-950215

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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PRW Harmonic Damper Bolts 1042351

Harmonic Balancer Bolt, Chromoly, Black Oxide, External 12-Point, Ford, 351C, Each

Part Number: PQX-1042351

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jul 2, 2025 if ordered today

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Estimated Ship Date: Jul 2, 2025 if ordered today

Dorman Harmonic Balancer Bolts 926-885

Harmonic Balancer Bolt, Hex Head, 14mm Thread, Steel, Natural, Each

Part Number: RNB-926-885

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

ATI Super Damper Bolt Kits ATI950220T

Fasteners, Harmonic Balancer, Titanium, Kit

Part Number: ATI-950220T

Not Yet Reviewed

Estimated Ship Date: Jun 9, 2025 if ordered today

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Estimated Ship Date: Jun 9, 2025 if ordered today

Stage 8 Locking Harmonic Balancer Bolt Kits 8993

Bolt Kit SB Chevy Balancer

Part Number: STG-8993

Not Yet Reviewed

Estimated Ship Date: Jun 9, 2025 if ordered today

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Estimated Ship Date: Jun 9, 2025 if ordered today

ATI Harmonic Balancer Bolt Kits ATI950200T

Harmonic Balancer Bolts, Titanium, Natural, Chrysler, Ford, Set of 9

Part Number: ATI-950200T

Not Yet Reviewed

Estimated Ship Date: Jun 9, 2025 if ordered today

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Estimated Ship Date: Jun 9, 2025 if ordered today

ATI Harmonic Balancer Bolt Kits ATI953077

Harmonic Balancer Bolts, Steel, Black Finish, Washer included, Chevy, GMC, 6.6L, Duramax, Diesel, Each

Part Number: ATI-953077

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

ATI Performance Products Harmonic Balancer Bolts ATI950273

DAMPER BOLT PACK, 6, 5/16, 18 X 1 TORX AND 3, 3/8, 16 X 1 1/2 C'BORE, 9 BOLTS

Part Number: ATI-ATI950273

Not Yet Reviewed

Estimated Ship Date: Jun 9, 2025 if ordered today

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Estimated Ship Date: Jun 9, 2025 if ordered today

B&B Performance Harmonic Balancer Bolts 27400

Harmonic Balancer Bolt, Steel, Gold Iridite, External Hex, Chevy, Big Block, Each

Part Number: STF-27400

1.5 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow if ordered today

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Estimated Ship Date: Tomorrow if ordered today

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