1987 GMC Harmonic Balancers

Balancer Bolt, 7/16-20 in. Thread, 2.000 in. Length, Chevy, Small Block, Each

Part Number: MIL-84530

4.43 out of 5 stars ( 14 )

Estimated Ship Date: Today

Harmonic Balancer Bolt, 12-point, 180,000 PSI, 1/2-20 in., 1.550 in. UHL, Each

Part Number: PQX-1042396

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Harmonic Balancer, Nodular Iron, Natural, Internal Engine Balance, Chevy, 6.0L, Each

Part Number: RNB-594-228

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Harmonic Balancer, 6.750 in. Diameter, Chevy, GMC, Pontiac, 5.0, 5.7L, Each

Part Number: ADO-12551537

4.92 out of 5 stars ( 12 )

Estimated Ship Date: Today

• Free Shipping

Harmonic Balancer, Super Damper, Internal Balance, Aluminum/Steel, GM, with Chevy Small Block, Pontiac 2.5L

Part Number: ATI-917200

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

• Free Shipping

Balancer Bolt, 1/2-20 in. Thread, 1.375 in. Length, Chevy, Big Block, Each

Part Number: MIL-84532

4.63 out of 5 stars ( 16 )

Estimated Ship Date: Today

Harmonic Balancer, Nodular Iron, 6.750 in. Diameter, Chevy, GMC, 292, Each

Part Number: RNB-594-031

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Today

• Free Shipping

Oil Seal, Rotary, 0.875 in., Repair Sleeve, Tool Kit, Each

Part Number: SKF-99087

Not Yet Reviewed

Estimated Ship Date: Today

Harmonic Balancer, SFI-Rated Racing Series, Internal Balance, Steel, Black, Chevy, Small Block, W-Engine, Each

Part Number: PQX-2426540

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

• Free Shipping

Harmonic Balancer Bolt, Steel, Zinc Plated, Hex Head, Chevy, Big Block, Each

Part Number: MRG-946G

Not Yet Reviewed

Estimated Ship Date: Today

Harmonic Balancer Cover, Aluminum, Black, 6 3/4 in. Diameter, Degree Markings, Chevy, Small Block, Each

Part Number: PRO-66517BKC

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Today

Harmonic Balancer, Super Damper, Internal Balance, Steel, Black, Chevy Small Block, Pontiac 2.5L, L4, Each

Part Number: ATI-917782

Not Yet Reviewed

Estimated Ship Date: Feb 16, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Repair Sleeve, Harmonic Balancer, Steel, Each

Part Number: TMK-88176

4.17 out of 5 stars ( 6 )

Estimated Ship Date: Today

Harmonic Balancer, Internal Balance, Nodular Iron, Natural, GM, Each

Part Number: RNB-594-009

3.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

Harmonic Balancer Repair Sleeves, Steel, Chevrolet, GMC, Big Block Gen V/Mark IV

Part Number: FEL-16205

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

• $20 Summit Bucks

Harmonic Balancer, Super Damper, Internal Balance, Aluminum, Steel, Chevy Small Block, Pontiac 2.5L, Each

Part Number: ATI-917260

Not Yet Reviewed

Estimated Ship Date: Feb 16, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Harmonic Balancer, Race, Internal Balance, Steel, Black, Chevy, Small Block, 4.3L V6, Each

Part Number: PIO-872021

4.6 out of 5 stars ( 5 )

Estimated Ship Date: Feb 17, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Harmonic Balancer Cover, Aluminum, Chrome, 8 in. Diameter, Degree Markings, Chevy, Small Block, Each

Part Number: PRO-66518CC

4.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

Timing Tape, 6 3/4 in. Diameter Balancer, Chevy, Small Block, Each

Part Number: MRG-1588

3.5 out of 5 stars ( 4 )

Estimated Ship Date: Today

Harmonic Balancer Cover, Aluminum, Chrome, 6 3/4 in. Diameter, Degree Markings, Chevy, Small Block, Each

Part Number: PRO-66517CC

4.0 out of 5 stars ( 4 )

Estimated Ship Date: Today

Harmonic Balancer, Internal Balance, 6.730 in. Diameter, Nodular Iron, Chevy/GMC/Pontiac, Small Block, Each

Part Number: PIO-DA-3071

Not Yet Reviewed

Estimated Ship Date: Feb 17, 2026 if ordered today

• Drop Ship
• Special Order

Crankshaft, Steel Hub, Chevy, Small Block, with Big Block Snout Dry Sump

Part Number: ATI-916043

Not Yet Reviewed

Estimated Ship Date: Feb 16, 2026 if ordered today

• Drop Ship
• Special Order

Harmonic Balancer, External Balance, Steel, Clearcoated, Chevy, 454, Each

Part Number: SUM-B64268

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Harmonic Balancer, Nodular Iron, 8 in. Diameter, Chevy, GMC, 5.7L, Each

Part Number: RNB-594-002S

Not Yet Reviewed

Estimated Ship Date: Feb 19, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Harmonic Balancer, Restoration Balancer, Internal Balance, Nodular Iron, 6.750 in. Diameter, Chevy Orange, Chevy, Small Block, Each

Part Number: PFS-85001

Not Yet Reviewed

Estimated Ship Date: Feb 23, 2026 if ordered today

• Drop Ship
• Special Order