SKU: 50003-M40XL | UPC: 4957266720424
HKS M-Series Spark Plugs (Heat Range 8) 2010-2016 Hyundai Genesis Coupe 3.8L
HKS M40XL M-Series spark plugs deliver precision ignition for the 2010-2016 Hyundai Genesis Coupe 3.8L V6 engine. This set of 6 iridium plugs replaces stock units with a colder heat range 8 for high-rev performance driving. Expect sharper throttle response smoother idle and added horsepower from efficient combustion.
Key Features
- 0.4mm Iridium Center Electrode: Provides focused spark for complete fuel burn and consistent power delivery across RPM range
- Platinum Ground Electrode: Resists wear for long service life up to 60,000 miles under demanding conditions
- Heat Range 8: Colder rating prevents pre-ignition and detonation in tuned or track-driven Genesis Coupe 3.8L engines
- Extended Insulator Tip: Shields electrode from deposits ensuring reliable starts and anti-fouling protection
- Exact OEM Dimensions: 14mm thread 26.5mm reach 16mm hex fits directly without modifications
Product Notes
- Set gap to 0.7-0.8mm before installation for optimal performance
- Torque to 18-22 ft-lbs using torque wrench to avoid thread damage
- Store in dry area to maintain electrode condition
Installation Notes
- Professional installation recommended.
- Apply anti-seize compound to threads for easy future removal
- Compatible with stock coil packs and ignition system no adapters needed
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2010-2016 | Hyundai | Genesis Coupe | 3.8L |
| 2010-2016 | Hyundai | Genesis Coupe | 3.8 R-Spec |
| 2010-2016 | Hyundai | Genesis Coupe | 3.8 Track |
Why Choose HKS?
- Decades of motorsport development refine every component for reliability
- Iridium alloy construction withstands extreme heat and stress
- Engineered in Japan for exact fit and peak efficiency in performance applications
Frequently Asked Questions
- Q: Will these fit my 2013 Hyundai Genesis Coupe 3.8L R-Spec?
A: Yes direct bolt-on replacement for all 2010-2016 Genesis Coupe 3.8L V6 models including R-Spec and Track editions - Q: What materials are used in HKS M40XL plugs?
A: Fine-wire iridium center electrode paired with platinum ground electrode plus ceramic insulator for durability and heat resistance - Q: Do these plugs require special tools for installation?
A: Standard 16mm spark plug socket and torque wrench suffice works with factory tools
Shipping & Handling
- Method: UPS Ground or USPS Priority
- Availability: In stock – ships same or next business day
- Packaging: Compact protective box 4in x 4in x 2in
- Weight: 0.4 lbs
Reviews
There are no reviews yet.