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SKU: 24996-AK009 | UPC: 4957266600207
HKS FINE TUNE V-BELT/4PK925 for 2004-2021 Subaru Impreza WRX STI Forester XT Legacy GT
The HKS Fine Tune V-Belt 4PK925 is a precision-engineered accessory drive belt designed for Subaru turbo models. It fits 2004-2021 Impreza WRX STI Forester XT and Legacy GT with EJ25 engines. This 925mm 4-rib belt uses advanced rubber for superior grip reduced slippage and consistent power transfer to alternator power steering and A/C.
Key Features
- High-Friction Compound: Special rubber formulation grips pulleys tightly to prevent slip under high RPM and load for dependable accessory operation.
- Low Elongation Design: Maintains tension over time without stretching ensuring stable performance and longer service life.
- Heat-Resistant Construction: Withstands engine bay temperatures up to 120°C to avoid degradation during track or spirited driving.
- Exact OEM Dimensions: 4PK925 size 925mm effective length matches factory specs for bolt-on installation with no modifications.
- Lightweight Build: Reduces rotational mass for quicker throttle response and improved engine efficiency.
Product Notes
- Direct replacement for stock belt enhances drive system reliability.
- Inspect pulleys for wear before installation to ensure optimal performance.
- Stored in protective sleeve to prevent contamination during shipping.
Installation Notes
- Professional installation recommended.
- Use belt tension gauge to set proper deflection per Subaru service manual.
- Compatible with stock and HKS accessory pulleys no special hardware needed.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2004-2007 | Subaru | Impreza | WRX STI |
| 2008-2014 | Subaru | Impreza | WRX |
| 2008-2021 | Subaru | Impreza | WRX STI |
| 2004-2012 | Subaru | Forester | XT |
| 2005-2009 | Subaru | Legacy | GT |
| 2005-2009 | Subaru | Outback | XT |
Why Choose HKS?
- Trusted by JDM enthusiasts for motorsport-proven components since 1973.
- Manufactured in Japan with rigorous quality testing for durability.
- Engineered for turbocharged engines to handle high-stress conditions.
Frequently Asked Questions
-
Q: Will this belt fit my 2010 Subaru WRX STI EJ257?
A: Yes it directly replaces the OEM 4PK925 belt on 2004-2021 STI models with EJ25 turbo engines for perfect compatibility. -
Q: What material is used in this belt?
A: Premium EPDM rubber compound with embedded fibers for high friction low stretch and resistance to oil heat and ozone. -
Q: What is the warranty on this HKS belt?
A: Backed by HKS 1-year limited warranty against defects when installed and maintained properly.
Shipping & Handling
- Method: UPS Ground or USPS Priority
- Availability: In stock - ships same or next business day
- Packaging: Compact box 5 x 3 x 1 inches
- Weight: 0.18 lbs
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