Set of 4 Fuel Injectors FJ1438 Compatible with Hyundai Kia - Durable

In this review of the Set of 4 Fuel Injectors FJ1438 the bottom line is simple: this kit is aimed at DIY mechanics and independent shops that need a direct replacement for specific Hyundai and Kia 2.4L L4 engines. The reviewer found the pack useful because it follows OE design intent and uses corrosion-resistant composite material with high-temp viton o-rings, which helps restore smooth idle and more consistent fuel delivery. Check fitment carefully for your model before buying and treat this as a replacement part that prioritizes reliability over flashy features.

Key Features

• OE-compatible design: Each injector is engineered to match or improve on original equipment geometry so installation is straightforward and minimizes adjustment time.
• Corrosion-resistant construction: Composite material helps resist corrosion and prolongs service life in the fuel rail and intake environment.
• High-temp viton o-rings: Durable seals reduce the chance of vacuum leaks and fuel seepage at high underhood temperatures.
• Balanced fuel delivery: Designed to provide even spray and flow characteristics to help restore smooth engine performance and consistent combustion.
• Complete 4-piece kit: The set includes four injectors so the entire bank is replaced at once, avoiding mismatched flow between old and new units.
• One year after-sales service: The pack is backed by a one year support policy for replacement if a part fails under normal use.

Who It's For

This injector set is best for owners of compatible Hyundai and Kia models who need a like-for-like replacement: 2019-2020 Santa Fe, 2017-2018 Santa Fe Sport, 2018-2019 Sonata, 2018-2021 Tucson, and selected Optima, Sorento, and Sportage years. It suits experienced DIYers and independent garages that can confirm fitment information and perform the swap with basic tools.

Those who should look elsewhere include drivers with severely worn engines needing a full fuel system overhaul or those who require performance-tuned injectors with higher flow rates; this kit is intended as a reliable OE-style replacement rather than a high-performance upgrade.

Pros & Cons

Pros

• Direct replacement design that simplifies installation and maintains factory fitment.
• Durable materials and viton o-rings improve resistance to heat and fuel degradation.
• Sold as a complete set of four so all cylinders receive matched injectors at once.
• One year after-sales service provides a safety net if a unit fails prematurely.

Cons

• Compatibility is limited to specific Hyundai and Kia 2.4L L4 years, so buyers must verify fitment before ordering.
• Not a high-flow performance injector; intended as an OE-style replacement rather than for engine tuning.

Specifications

Brand	MACAX
Part number	FJ1438 (replaces 35310-2GGA1)
Quantity	Set of 4 fuel injectors
Compatible engines	2.4L L4 (selected Hyundai and Kia models)
Construction	Corrosion-resistant composite with high-temp viton o-rings
Warranty / Service	One year after-sales service

Our Verdict

For owners of the listed Hyundai and Kia models who need a reliable, OE-style replacement, this set of four injectors offers good value thanks to durable materials, matched flow across the bank, and a one year after-sales policy. Verify vehicle fitment before purchase; this is a practical, cost-effective fix to restore smooth idling and balanced fuel delivery without upgrading to performance parts.

Frequently Asked Questions

Will these injectors fit my vehicle?
Check the listed compatible model years and cross-reference the part number FJ1438 or 35310-2GGA1 against your vehicle; verify fitment before ordering.

Are these high-flow performance injectors?
No, these injectors are designed to match OE specifications for normal replacement use rather than increased flow for performance tuning.

What support is available if an injector fails?
The set includes a one year after-sales service-contact the seller for a replacement if a unit fails under normal use.