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Replacement Parts

Engines & Engine Parts

Harmonic Balancer Repair Kits

12557840 Engine Harmonic Balancer Bolt for GM Performance Parts, for Most of Gen 3 and Gen 4 LS Engines Crank Bolt, Replaces # 917-139, 1 Pack

R 654

or 4 x payments of R163.50 with Payflex

Payflex

Availability: Currently in Stock

Delivery: 10-20 working days

12557840 Engine Harmonic Balancer Bolt for GM Performance Parts, for Most of Gen 3 and Gen 4 LS Engines Crank Bolt, Replaces # 917-139, 1 Pack
- Compatiblility: 917-139 harmonic balancer crank bolt for GM engines (4.8L, 5.3L, 6.0L, 6.2L, LS1, LS2, LS3, LS6, L59, L92, L96, L99, LH8,LMG, LMF, LM7, LR4, LMG, LQ4, LQ9, LY5), except LS7/LS9/LT4/LT5.
- Material: LS harmonic balancer bolt replacement made of high-strength steel with precision-engineered threads. Withstands high torque and vibration. Not easy to break or deform.
- Size: Head style is a hex head. 4.55" L x 1.65" W x 0.42" Thread diameter.
- Function: If the balancer bolt slips or becomes loose due to wear and tear at high RPMs, replace it with a new one to prevent damage to the LS engine crankshaft .
- Matched: Specifically designed for most Gen III and Gen IV LS engines. It is a reliable alternative to original LS crank bolts.
Country USA
Brand AGUNION
Manufacturer AGUNION
ItemPartNumber 12557840 crank bolt
Model 12557840
Warranty 3 Months
Color Silver
Size Standard
UnitCount 1
ReleaseDate 0000-00-00

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