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SKU: 24996-AK002 | UPC: 4957266600139
HKS FINE TUNE V-BELT 4PK806 for 2002-2021 Subaru Impreza WRX and STI
The HKS Fine Tune V-Belt 4PK806 delivers direct replacement performance as an accessory drive belt for 2002-2021 Subaru Impreza WRX and STI models. This 806mm 4-ribbed belt uses a specialized rubber compound that resists stretching and slippage to maintain alternator power steering and AC function under high-RPM track or street conditions. It meets OEM specifications while supporting higher engine loads from turbo upgrades on EJ20 and EJ25 engines.
Key Features
- Low Elongation Rubber: Special compound stretches 30 percent less than stock belts to hold precise tension over thousands of miles
- High Friction Surface: Grippy profile eliminates slip under boost for consistent accessory performance
- Heat Resistance: Withstands engine bay temperatures up to 120 degrees C for durability in tuned EJ20 EJ25 engines
- OEM-Sized 4PK806: 4-rib 806mm length ensures bolt-on fit without pulley changes or adjustments
- Quiet Long-Life Design: Reduces noise vibration and wear for extended service intervals
Product Notes
- Inspect tensioner pulley and idlers for wear before installation
- Store in cool dry place away from oils and chemicals
- Packed in protective sleeve weight 0.11 lbs (0.05 kg)
Installation Notes
- Professional installation recommended.
- Release auto-tensioner with 14mm wrench to route belt
- Compatible with stock HKS or aftermarket accessory pulleys
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2002-2007 | Subaru | Impreza | WRX |
| 2004-2007 | Subaru | Impreza | WRX STI |
| 2008-2014 | Subaru | Impreza | WRX |
| 2008-2014 | Subaru | Impreza | WRX STI |
| 2008-2021 | Subaru | WRX | STI |
| 2015-2021 | Subaru | WRX | STI |
Why Choose HKS?
- Motorsport heritage from Japanese Super Taikyu racing
- Precision molded in Japan for exact tolerances
- Engineered for turbocharged Subaru applications
Frequently Asked Questions
-
Q: Will this belt fit my 2015 WRX STI?
A: Yes it directly replaces OEM part on 2015-2021 Subaru WRX STI with EJ257 engine -
Q: What material is used in the belt?
A: EPDM rubber blended with friction enhancers for heat resistance and minimal stretch -
Q: What is the warranty and install time?
A: HKS one-year limited warranty 20-30 minute install with basic tools on most models
Shipping & Handling
- Method: UPS Ground or USPS Priority
- Availability: In stock - ships same or next business day
- Packaging: Compact box 8 x 4 x 1 inches
- Weight: 0.3 lbs shipped (0.11 lbs product)
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