HKS FINE TUNE V-BELT/4PK925

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