Understanding the Parts Debate
When your car is repaired after an accident, the parts used directly affect safety, fit, and resale value. Insurance companies often push for cheaper aftermarket parts, while you may prefer original equipment manufacturer (OEM) parts.
Types of Replacement Parts
OEM Parts (Original Equipment Manufacturer)
Parts made by or for the vehicle manufacturer.
Characteristics:
- Exact fit guaranteed
- Same materials and quality as original
- May include manufacturer warranty
- Most expensive option
- Maintains vehicle integrity
Aftermarket Parts
Parts made by third-party companies, not the original manufacturer.
Quality ranges widely:
- Some match OEM quality
- Many are inferior
- Fit may be imperfect
- Generally 20-50% cheaper
- No manufacturer connection
Certified Aftermarket (CAPA/NSF)
Independent organizations certify some aftermarket parts:
| Certification | Standards |
|---|---|
| CAPA | Tests fit, corrosion resistance, physical properties |
| NSF | Similar testing for bumpers and lights |
Certified parts are better than generic aftermarket but still not OEM.
Used/Recycled OEM Parts (LKQ)
Original parts from salvage vehicles:
- Genuine OEM quality
- Pre-existing wear
- Lower cost than new OEM
- May have hidden damage
- Variable quality
Reconditioned Parts
Used parts that have been repaired/refinished:
- Cheaper than new
- Quality varies significantly
- May not perform like new
- Needs inspection before use
Why Insurance Companies Prefer Aftermarket
The Cost Difference
| Part | OEM Price | Aftermarket | Savings |
|---|---|---|---|
| Fender | $400 | $200 | $200 |
| Hood | $700 | $350 | $350 |
| Bumper cover | $500 | $200 | $300 |
| Headlight | $600 | $250 | $350 |
On a typical repair, aftermarket parts can save insurers $500-2,000.
Policy Language
Most policies include language allowing aftermarket parts:
"We may use parts not made by the original manufacturer that are of like kind and quality..."
Key phrase: "like kind and quality" - this is where you have leverage.
Problems With Aftermarket Parts
Fit Issues
Common problems:
- Panels don't align properly
- Gaps uneven around doors/hood
- Extra labor to modify parts
- May never fit perfectly
Quality Concerns
- Thinner metal in some cases
- Less corrosion resistance
- Cheaper materials
- May fail sooner
- Safety testing not required
Safety Questions
For structural and safety parts:
- Not crash tested by manufacturer
- May not perform identically in accident
- Airbag deployment could be affected
- Crumple zones may behave differently
Resale Value Impact
Aftermarket repairs may affect:
- Trade-in value at dealers
- Private sale negotiations
- Vehicle inspection reports
- Perception of repair quality
Your Rights Regarding Parts
State Laws Vary
Some states have parts disclosure requirements:
| Requirement | States |
|---|---|
| Written disclosure required | Most states |
| Consumer consent required | Some states |
| OEM required for new cars | Very few states |
| Certified aftermarket only | Some states |
What Your Policy May Allow
Check your policy for:
- OEM parts endorsement (extra coverage)
- Aftermarket parts clause
- Age/mileage triggers for aftermarket
- Options for upgrading to OEM
The "Like Kind and Quality" Argument
When insurers use aftermarket:
- They must be equivalent quality
- If parts don't fit, they're not equivalent
- You can dispute parts that cause problems
- Document fit issues with photos
How to Get OEM Parts
Method 1: Request OEM in Writing
When filing claim:
"I'm requesting OEM parts for my repair. I understand this may affect cost, and I'm willing to pay any reasonable difference for parts that don't meet OEM equivalence."
Method 2: Challenge Aftermarket Quality
If aftermarket parts don't fit or perform:
- Document the problems
- Show shop's attempts to make them work
- Demand OEM replacement
- Cite "like kind and quality" policy language
Method 3: Negotiate the Difference
Offer to pay part of the difference:
- Insurance pays aftermarket equivalent
- You pay the upgrade cost
- Often $200-500 for average repair
Method 4: Use OEM Parts Endorsement
Some insurers offer this coverage:
- Added to policy before accident
- Guarantees OEM parts in repairs
- Costs $50-100/year extra
- Worth considering for newer vehicles
Method 5: Leverage Manufacturer Warranty
For newer vehicles:
- Check if aftermarket parts void warranty
- Get dealer statement if they do
- Present to insurance as justification
- May only work for powertrain proximity
Shop's Perspective on Parts
Why Some Shops Prefer OEM
- Better fit = less labor
- Fewer comebacks
- Customer satisfaction higher
- Professional reputation
- Warranty coverage
Why Some Shops Use Aftermarket
- Insurance pressure (DRP agreements)
- Higher profit margin possible
- Faster repair (if parts fit)
- Meeting insurance estimate
Questions for Your Shop
- "What parts are you planning to use?"
- "Can you use OEM parts if I request?"
- "What happens if aftermarket parts don't fit?"
- "Will you document any fit issues?"
- "Do you warranty aftermarket parts the same?"
Parts by Repair Type
Use OEM For:
- Structural components (frame rails, reinforcements)
- Safety systems (airbags, sensors, crumple zones)
- Mechanical parts (suspension, steering)
- Complex electrical components
- Parts visible in open hood/trunk
- Newer vehicles (under 5 years)
Aftermarket May Be Acceptable For:
- Non-structural body panels on older cars
- Basic trim pieces
- Generic components (mirrors, handles)
- Parts you plan to replace anyway
- Vehicles over 10 years old
Always Demand OEM For:
- Bumper reinforcements
- Airbag-related components
- Structural brackets
- Safety sensors
- Hood latches
- Seat belt anchors
Documenting Parts Problems
If aftermarket parts cause issues:
What to Document
- Photos of fit problems
- Comparison to undamaged areas
- Shop's labor to modify
- Written statement from technician
- Before/after photos
How to Use Documentation
- Present to adjuster with estimate for OEM
- Demand replacement under "like kind and quality"
- File complaint if they refuse
- Keep for potential future claims
After Repair: Verifying Parts
Before Accepting Vehicle
Ask for:
- Itemized invoice listing all parts
- Parts numbers for verification
- Brand names for aftermarket parts
- OEM parts numbers if applicable
Red Flags
- Shop won't provide parts list
- Unknown brand names
- Significantly cheaper than expected
- Fit looks wrong
Key Takeaways
- OEM parts are made by/for your car's manufacturer
- Aftermarket parts save insurers money but vary in quality
- "Like kind and quality" requirement gives you leverage
- State laws require parts disclosure in most states
- OEM parts endorsement prevents the argument entirely
- Always demand OEM for safety and structural components
- Document any fit or quality issues with aftermarket parts
- You can pay the difference to get OEM if policy allows