4 Common Mistakes When Buying Auto Parts – And How to Avoid Them

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1️⃣ OE Number ≠ Universal Fit — One Code, Many Variants

Many customers assume:

“As long as I have the OE number, you can just ship it.”

In fact, one OE number can apply to multiple models, production years, or even different chassis versions.

For example:
Some Toyota control arms for the Europe version and Asia-Pacific version share the same OE code, but their actual size may differ by 0.5 cm — causing installation issues.

✅ Tip: Always provide OE number + vehicle model + year + photo for double confirmation.

2️⃣ OEM vs Aftermarket: It’s Not Just About Price — Precision Matters

Some buyers go for cheaper aftermarket parts, especially for shock absorbers or brake discs — but these parts require high precision.

Low-end brands may lead to:

  • Uneven vibration or noise
  • Extended braking distance
  • Lifespan only 60% of original parts

✅ Tip: For such critical parts, go for mid-to-high quality brands or original parts. The balance between cost and performance is key.

3️⃣ Engine Oil: Thinner ≠ Better — Wrong Choice May Damage Your Engine

Many people believe:

“0W-20 is always better than 5W-30.”

But the truth is:

  • Older vehicles or hot climate driving work better with 5W-30 / 5W-40
  • Thin oils offer fast cold starts, but may lose protection at high temperatures

✅ Tip: Choose oil viscosity based on vehicle age + local climate, not marketing hype.

4️⃣ Exterior Plastic Parts: Always Ask for Real Photos!

For items like fog lamp trims, emblems, or mirror covers — even tiny clip or hole differences between batches can result in mismatch.

✅ Tip: Always request real product photos or sample images. Confirm clips, dimensions, and color tones match your needs.

🔧 How Can We Help You?

As a dedicated exporter team, technical accuracy comes first in our workflow. Before you place an order, we’re happy to offer:

  • OE code cross-checking + real product photos
  • Oil recommendations tailored to your region & vehicle
  • Clear comparison between original and aftermarket options

📦 You’re not gambling — you’re working with a team that cares about precision and your long-term success.

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