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SKU:
NLT1I00335
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Fuel Filler Cap for Kia Models | Replaces 31010-3L600U
$22.99
In Stock
$22.99
Sale price
$22.99
Regular price
This aftermarket fuel filler cap replaces Kia 31010-3L600U and earlier 31010-series references on compatible gasoline vehicles.
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
Compatible equipment / model
- Kia Amanti 2004-2009
- Kia Borrego 2009-2011
- Kia Cadenza 2014-2020
- Kia Forte 2010-2024 with matching filler neck
- Kia Forte Koup 2010-2017
- Kia Forte5 2012-2024 with matching filler neck
- Kia K5 applications using 31010-3L600U
- Kia Optima, Rio, Sedona, Sorento, Soul, Sportage, and Stinger applications using 31010-3L600U
Product Overview
A missing cap, cracked seal, or cap that no longer clicks can allow the EVAP system to detect a leak and may trigger a loose-cap warning or check-engine light. This replacement restores the closure at the filler neck when the cap is the actual leak source. It will not correct a failed purge valve, vent valve, cracked hose, damaged filler neck, or other EVAP fault.
This makes it a practical choice when diagnosis points to the original component rather than a related system fault. Kia used this reference broadly, but the safest check is the original cap number, thread/locking design, tether, and VIN-based catalog match.
Key Features & Performance
- Restores the fuel-filler seal on compatible Kia vehicles
- Tethered cap design when supplied as shown
- Direct replacement for listed Kia references
- Possible repair for a verified large EVAP leak at the cap
Replaces Part Numbers
- 31010-3L600U
- 31010-3L600
- 31010-2C800
- 31010-2C800FFF
- 31010-2D600
- 31010-2F500
Common Uses
- Original cap is lost
- Seal is cracked, hard, or contaminated
- Cap no longer tightens or clicks correctly
- Smoke test confirms leakage at the fuel cap
Technical Specifications
- Product Type: Fuel Filler Cap
- Vehicle Brand: Kia
- Reference: 31010-3L600U
- System: Fuel Tank/EVAP Sealing
- Replacement Type: Aftermarket
- Fitment Type: Part Number Specific
Installation & Fitment
- Inspect and clean the filler-neck sealing surface
- Tighten until the cap indicates it is seated
- Do not force a cap with the wrong thread or locking tabs
- Clear or monitor EVAP codes only after all leaks are repaired
- Replace a damaged filler neck rather than relying on a new cap
Compatibility Notice
Northline Parts does its best to list all known compatible models, but the correct part may fit an application not shown. Kia used this reference broadly, but the safest check is the original cap number, thread/locking design, tether, and VIN-based catalog match.
Frequently Asked Questions
Q: Will this definitely turn off my check-engine light? A: No. It can help only when the cap is the leak source; scan codes and diagnose the EVAP system.
Q: Why is the model list broad? A: 31010-3L600U appears across many Kia vehicles, so original-number or VIN confirmation is important.
Q: How long until an EVAP light clears? A: The vehicle may need successful self-tests or a scan-tool clear after the repair.
Part Summary
keywords: Kia 31010-3L600U fuel cap, Kia loose gas cap check engine light, Forte Optima fuel filler cap, aftermarket Kia EVAP cap, replacement Kia gas cap seal
Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, dimensions, and application before purchase.