Rough Idle or Air Leak on Your Hyundai/Kia 2.7L? Replace the Throttle Body Seals for $14.
The throttle body shaft seals on Hyundai Tucson, Grandeur, XG and Kia Sportage 2.7L V6 engines (OEM 3510037420) prevent unmetered air ingestion around the throttle shaft. Worn seals cause unstable idle, lean mixture faults, and throttle response lag — without requiring replacement of the entire throttle body assembly.
✓ What You Get: Throttle body shaft seal set (OEM 3510037420) for Hyundai Tucson / Grandeur / XG and Kia Sportage 2.7L V6 — restores throttle body sealing without replacing the assembly.
What's Included
- Throttle body shaft seal set — OEM 3510037420
Why Replace?
- Stops Air Leaks: Worn shaft seals allow unmetered air into the intake — ECU can't compensate, idle goes rough.
- Fixes Lean Codes: Air ingestion through worn seals triggers lean mixture faults and O2 sensor errors.
- Saves $100+: New throttle body assembly $120+; shaft seals cost $14.
- Quick Swap: Remove throttle body, press out old seals, install new — no machining required.
Vehicle Compatibility
| Make | Models | Years |
|---|---|---|
| Hyundai | Tucson, Grandeur, XG | Tucson 2004–2010 / Grandeur & XG 1998–2005 |
| Kia | Sportage (incl. Slovakia Plant) | 2004–2010 |
About These Seals
Throttle body shaft seals (OEM 3510037420) for Hyundai/Kia 2.7L V6 engines. The seals sit on the throttle plate shaft where it passes through the throttle body bore — they are the only wear item before condemning the throttle body itself. Fuel, oil, and heat resistant. Verify OEM part number and seal dimensions match your throttle body before ordering.
⚠ Verify Before Ordering: Confirm throttle body OEM 3510037420 matches or compare installed seal dimensions before purchasing.
Read All
Orders ship within 1–2 business days.
Standard delivery:
- USA: Some items ship from our US warehouse and arrive within 3 business days.
- USA-EU: 10–21 business days
- Worldwide: 14–30 business days
Shipping cost is shown at checkout.
Can I exchange or return an item?
Yes, you can exchange or return an item within 14 days of purchase. This right is guaranteed to you by the Law on the Protection of Consumer Rights
To use this feature, please make sure that:
- the product was not in use and has no traces of use: scratches, chips, abrasions, etc.
- the goods are fully completed and the integrity of the packaging is not violated
- retained all labels and factory markings