Introduction to 90105-tba-a00
In the vast world of automotive parts, some components may seem insignificant—until they fail. One such unsung hero is the 90105-tba-a00, a specialized bolt used primarily in various Honda and Acura models. Despite its modest appearance, this fastener holds a vital role in ensuring structural integrity, performance, and safety.
Think of it as the silent guardian—always in place, never flashy, but crucial when the rubber meets the road. This article digs deep into everything you should know about the 90105-tba-a00. Whether you’re a seasoned mechanic, a DIY car enthusiast, or just someone trying to understand what went wrong with your ride, buckle up—you’re in for a ride full of insights.
90105-tba-a00
The 90105-tba-a00 is not your average bolt. Engineered to meet exacting standards, it’s commonly found securing components like suspension parts, engine brackets, or even transmission mounts in Honda vehicles. Designed with durability, stress resistance, and precision fit in mind, it’s made from high-tensile steel, often treated with corrosion-resistant coatings.
Mechanics trust this part because it aligns perfectly with OEM standards. When a car repair requires dependability, using an exact-match part like this ensures safety and longevity. Cheap or misaligned alternatives may not handle the same torque or wear conditions, so cutting corners here could cost much more in the long run.
Understanding 90105-tba-a00
Let’s break down what makes this bolt unique:
- Thread Pitch: Engineered for precision to ensure perfect locking without loosening under vibration.
- Length and Diameter: Specific to the assembly needs of the vehicle, ensuring exact fitment.
- Material Composition: Usually made from hardened steel with anti-corrosion coatings to extend life.
This part undergoes rigorous stress tests before it reaches your vehicle. It’s not just a bolt—it’s part of a larger safety system.
Where is 90105-tba-a00 Used?
The 90105-tba-a00 typically appears in:
- Engine mount brackets
- Lower control arms
- Transmission support
- Subframe assemblies
Its main job? Keep critical parts tightly secured under stress and motion. If this bolt fails, you’re looking at major vibrations, alignment issues, or worse—unsafe driving conditions.
Material and Design
Not all bolts are created equal. The 90105-tba-a00 features:
- Heat-treated alloy steel for increased load-bearing capacity
- Zinc or phosphate coating to fight off rust
- Precision machining to match exact tolerances
These factors allow it to perform even under intense thermal and mechanical stress.
OEM vs Aftermarket
OEM (Original Equipment Manufacturer) parts like 90105-tba-a00 are made to exact specs. Aftermarket versions might offer cost savings but could compromise on durability or compatibility. Always weigh the risk when going for cheaper options.
| Feature | OEM Part | Aftermarket |
|---|---|---|
| Material Quality | High | Varies |
| Fitment | Exact | Sometimes off |
| Durability | Long-lasting | May be shorter |
| Cost | Higher upfront | Cheaper initially |
How to Identify 90105-tba-a00
Look for:
- Part number stamped on the bolt
- Size and threading that match the spec sheets
- Packaging that includes the Honda or Acura label
You can also verify it with online OEM part databases or a dealership.
Compatibility of 90105-tba-a00
Vehicles known to use this part include:
- Honda Accord
- Honda Civic
- Acura TLX
- Acura ILX
Always cross-check your VIN or consult your car’s service manual before purchase.
Installation Guidelines
Installing the 90105-tba-a00 is straightforward:
- Safely jack up the car and secure it.
- Locate the mounting point.
- Clean any old thread-locker or debris.
- Align components and insert the bolt.
- Tighten to manufacturer’s torque spec.
Torque Specifications
Over-tightening can strip threads or warp components. Under-tightening leads to vibrations. Always use a torque wrench. For example, a control arm bolt may require 74 lb-ft of torque. Check your vehicle’s service manual.
Tools Required for Installation
- Torque wrench
- 12mm or 14mm socket (vehicle dependent)
- Breaker bar (for removal)
- Anti-seize compound or thread locker
Safety gear like gloves and eye protection is also a must.
Common Issues with 90105-tba-a00
- Corrosion: Especially in snow-prone regions
- Stripped Threads: Due to improper installation
- Bolt Shearing: Caused by sudden impact or high stress
Replacement Frequency
While bolts don’t typically require routine replacement, if you:
- Hear knocking sounds
- Notice loose mounting
- See rust or wear
…it’s time for a change.
Buying Guide
Purchase only from verified sellers. Trusted sources include:
- Honda OEM Parts
- Local dealerships
- Amazon OEM listings (with verified reviews)
Always match the part number before purchase.
Cost Comparison
| Source | OEM Price | Aftermarket Price |
|---|---|---|
| Honda Dealer | $4.99–$8 | — |
| Online Retailer | $3.50–$6 | $2–$4 |
Remember, saving $2 today could cost $200 later in repairs.
Maintenance Tips
- Apply anti-seize compound during installation
- Regularly inspect for corrosion or wear
- Replace during major component overhauls
Signs of Faulty 90105-tba-a00
- Strange clunking noises
- Misalignment
- Rust trails under mounting points
Don’t ignore these signs—they usually worsen over time.
Safety Importance
This bolt may be small, but it plays a huge role. It’s part of your vehicle’s structural skeleton. One failure here can lead to compromised suspension or drivetrain integrity.
User Reviews & Feedback
Mechanics appreciate its strength and consistency. DIY users report smooth installs and excellent fitment—just don’t cheap out on torque specs.
Environmental Factors
Road salt, moisture, and extreme heat can degrade the coating. If you live in such areas, inspect more frequently and coat it with protectants.
Storage Tips
Keep spare bolts in a dry, sealed bag. Label them properly and store in toolboxes with dividers to avoid confusion.
Regulations and Standards
Meets ISO 898-1 standards and SAE automotive bolt classifications. Always ensure your supplier complies with these.
Upgrading from 90105-tba-a00
Performance bolts with additional tensile strength are available but should only be used in high-demand applications. Consult a mechanic before replacing.
Case Studies
In a 2021 Honda Accord repair case, replacing this bolt resolved persistent vibration during acceleration. Another case in an Acura ILX improved subframe stability post-collision.
Expert Insights
Certified mechanics recommend using OEM parts for critical fasteners. According to ASE techs, “Bolts like 90105-tba-a00 aren’t optional—they’re essential.”
Troubleshooting FAQ
Is it okay to reuse 90105-tba-a00?
Not recommended if removed from high-stress applications. Always inspect for damage first.
Can I use a generic bolt instead?
Only if it matches the exact specs in tensile strength, coating, and thread pitch.
What happens if I over-torque the bolt?
It may stretch or shear, compromising structural integrity.
Does this part need a thread locker?
Only if specified by the service manual.
Why does the bolt rust quickly?
Likely due to exposure to road salt or lack of anti-corrosion treatment.
Can I install this bolt without a torque wrench?
Possible, but risky. Torque wrenches ensure proper tension and safety.
Conclusion
While it may seem like a minor component, the 90105-tba-a00 is a pillar of your vehicle’s reliability. Whether you’re performing a routine repair or chasing down a mystery noise, this bolt could be the key. Don’t underestimate the power of small parts—especially ones engineered to keep everything together.
