SKU: 24996-AK046 | UPC: 4957266600702
HKS FINE TUNE V-BELT 6PK1710 for 2008-2021 Subaru WRX STI
The HKS Fine Tune V-Belt 6PK1710 serves as a direct replacement accessory drive belt for 2008-2021 Subaru WRX STI models powering the alternator power steering and A/C compressor. Its advanced compound resists stretching for consistent tension and slip-free operation even under high engine loads. This belt maintains reliable accessory performance in demanding driving conditions.
Key Features
- Low Elongation Compound: Aramid-reinforced rubber keeps tension stable over thousands of miles reducing maintenance needs
- High Friction Surface: Multi-rib 6PK profile grips pulleys firmly transmitting power without slippage
- Exact 1710mm Length: Matches OEM specifications for plug-and-play installation on STI accessory systems
- Heat and Oil Resistance: Withstands engine bay temperatures up to 120C and resists contamination for long service life
- Lightweight Construction: Weighs only 0.15kg minimizing rotational inertia for quicker throttle response
Product Notes
- Direct OEM replacement no modifications or special tools required
- Inspect pulleys and tensioner during replacement for best results
- Packed in protective sleeve to prevent handling damage
Installation Notes
- Professional installation recommended.
- Use belt tension gauge to set proper deflection per Subaru service manual
- Compatible with stock HKS and aftermarket accessory pulleys
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2008-2014 | Subaru | Impreza | WRX STI |
| 2015-2021 | Subaru | WRX STI | All |
Why Choose HKS?
- Decades of JDM motorsport experience in high-performance components
- Advanced materials tested in Super Taikyu endurance racing
- Precision manufacturing in Japan for exact OEM-level fit and function
Frequently Asked Questions
- Q: Does this belt fit 2015-2021 Subaru WRX STI models?
A: Yes it directly replaces the OEM 6PK1710 belt on all 2015-2021 STI hatchback and sedan variants with EJ257 engines - Q: What material is used in the HKS Fine Tune V-Belt?
A: EPDM rubber reinforced with aramid fibers for superior stretch resistance and durability compared to standard belts - Q: What is the warranty and installation difficulty?
A: HKS offers a 1-year warranty against defects. Installation takes 30-60 minutes with basic tools following STI service procedures
Shipping & Handling
- Method: UPS Ground or USPS Priority
- Availability: In stock – ships same or next business day
- Packaging: Compact box measures 8 x 6 x 1 inches
- Weight: 0.33 lbs





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