The GM Genuine Parts 11549124 crankshaft balancer bolt is presented as an OEM-quality fastener for select GM engines, machined from hardened steel with a corrosion-resistant coating, M10 x 1.5 thread, and 45 mm length. It claims a recommended torque of 110–140 Nm for secure installation. What about fitment accuracy, longevity under high RPM, and how it compares to aftermarket pins and bolts? The next section examines specs, safety, and buying choices.
Key Takeaways
- OEM crankshaft balancer bolt (GM 11549124) engineered for precise fit and harmonic balancer clamping.
- Hardened steel with corrosion-resistant coating for improved durability and longevity.
- M10 x 1.5 thread, 45 mm length, 18 mm head — confirm match to vehicle specifications.
- Typical installation torque 110–140 Nm and correct engagement length are critical for safety.
- Choose genuine GM for guaranteed fit and reliability; consider aftermarket only for cost-driven replacements.
Product Overview and Specifications
The GM Genuine Parts 11549124 crankshaft balancer bolt is a direct-fit fastener engineered for specific GM engines, designed to secure the harmonic balancer (also called the crankshaft pulley) to the crankshaft with precise clamping force.
The GM Genuine Parts 11549124 crankshaft balancer bolt: a direct-fit fastener engineered to secure the harmonic balancer with precise clamping force
It offers OEM pedigree, hardened steel construction, and a corrosion-resistant coating.
What are the key specs?
- Bolt thread: M10 x 1.5
- Length: 45 mm
- Head size: 18 mm
- Torque spec reference: manufacturer chart.
Who benefits?
Owners seeking reliable replacement parts and mechanics valuing fit and finish.
Practical note: verify part number against vehicle application, inspect threads and seating surfaces before installation.
Fitment, Performance, and Safety Considerations
Moving from specifications into real-world use, fitment, performance, and safety considerations determine whether the GM Genuine Parts 11549124 bolt will function as intended on a given vehicle.
The reviewer notes correct thread size, torque spec, and seating depth matter: typical torque 110–140 Nm, thread M12 x 1.75, engagement length ~20 mm.
Fitment checks include OEM part number match, crankshaft hub clearance, and washer orientation.
Performance: material strength, fatigue resistance, and corrosion plating affect longevity.
Safety: verified OE design integrates with engine vibration controls and timing components.
Questions remain about vehicle-specific tolerances; verify fit before installation.
- Confirm thread, torque, engagement
- Inspect hub clearance, washer fit
- Assess material, corrosion protection
- Verify OE integration, vibration control
Buying Guide: Genuine Vs Aftermarket Options
Although brand choices may seem minor, selecting between GM Genuine Parts 11549124 and aftermarket alternatives has measurable consequences for fit, performance, and safety. The buyer is advised to weigh OE validation, material specs, service updates, and compatibility with GM safety systems. Consider torque spec consistency, thread size tolerance ±0.1 mm, and recommended replacement intervals.
| Attribute | Consideration |
|---|---|
| Fit | OE tolerance, direct swap |
| Materials | Hardened steel, fatigue life |
| Safety | Designed for GM systems |
| Cost | Upfront vs lifecycle value |
Q: When choose OE? A: For guaranteed fit. Q: When aftermarket? A: For cost-driven needs.
Frequently Asked Questions
Is This Bolt Reusable After Removal or Torque-To-Yield Only?
No — it’s typically torque-to-yield, so reuse is discouraged. The liberated mechanic is advised to replace the bolt to guarantee proper preload, preserve safety systems, and honor GM’s engineered specifications for reliable, accountable vehicle performance.
What Torque Spec and Thread Locker Does GM Recommend for Installation?
GM recommends 95 ft·lb (128 N·m) for installation and a medium-strength blue threadlocker (e.g., Loctite 242). The liberated mechanic follows OEM torque charts, validating with service manual and fresh fastener if torque-to-yield.
Is This Part Covered Under GM Genuine Parts Warranty Terms?
Yes. 86% of GM Genuine Parts carry limited warranty; the speaker urges liberated owners to claim coverage. Warranty covers defects under terms, requiring proof of purchase and compliance with installation and maintenance conditions.
Can This Bolt Be Used on Performance or Modified Engines?
Yes, it can be used, but only within its OE specifications; liberated builders should verify torque ratings, material strength, and compatibility with modified crankshafts, since performance applications may demand aftermarket high‑strength bolts or upgraded engineering validation.
Where Is the Part Manufactured/Origin Country?
The part’s country of manufacture varies; it may originate from GM’s global suppliers, including the United States, Mexico, or other international plants. The seeker is encouraged to demand transparency and choose suppliers aligned with ethical standards.
Conclusion
To conclude, the GM Genuine Parts 11549124 bolt presents a solid, undemanding choice for securing harmonic balancers. It measures M10 x 1.5 with a 45 mm length, forged from hardened steel and coated for corrosion resistance. Recommended torque is 110–140 Nm. Should one prioritize OEM fitment, durability, and predictable performance, this bolt quietly answers that need. Is it indispensable? For many owners and technicians seeking reassurance, it serves as a reliable, unobtrusive safeguard.
