SKU: 63785 | UPC: 84663637858
Moroso 02-07 Subaru WRX/Sti Coolant Expansion Tank - Direct Bolt-In Replacement
The Moroso 63785 coolant expansion tank serves as a direct bolt-in replacement for 2002-2007 Subaru Impreza WRX and STi models. This aluminum tank provides increased capacity to handle higher coolant volumes in modified engines, preventing overflow during track or street use. It maintains proper coolant levels for consistent engine temperatures and performance reliability.
Key Features
- Direct Bolt-In Fit: Matches OEM mounting points for 02-07 WRX/STi with no cutting or fabrication needed, installs in under 30 minutes.
- Billet Aluminum Build: Lightweight at 1.4 lbs yet strong enough for high-pressure racing applications, resists cracking under heat cycles.
- 50% Larger Capacity: Holds 32 ounces versus stock 20 ounces, accommodates expanded coolant from turbocharged setups without spilling.
- Threaded OEM-Style Cap: Ensures airtight seal to prevent contamination and pressure loss, includes vent for safe operation.
- Black Anodized Finish: Protects against corrosion and road salt, maintains clean engine bay appearance over time.
Product Notes
- Designed as plug-and-play upgrade for stock plastic tanks prone to failure.
- Compatible with all coolant types including ethylene glycol mixes.
- Securely packaged in 12 x 10 x 8 inch box for damage-free delivery.
Installation Notes
- Professional installation recommended.
- Drain coolant system before removal of stock tank.
- Uses factory hardware and hoses, torque bolts to 10 ft-lbs.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2002-2007 | Subaru | Impreza | WRX |
| 2004-2007 | Subaru | Impreza | WRX STI |
Why Choose Moroso?
- Over 60 years in racing components for Subaru enthusiasts.
- CNC-machined parts tested in NHRA and SCCA competition.
- Precise engineering ensures leak-free performance under boost.
Frequently Asked Questions
-
Q: Will this fit my 2005 Subaru WRX?
A: Yes, direct fit for all 2002-2007 Impreza WRX models including sedan and wagon. -
Q: What material is the tank made from?
A: Billet 6061 aluminum with anodized coating for durability and heat resistance. -
Q: Is any modification required for install?
A: No modifications needed, bolts directly to factory locations with included O-ring seal.
Shipping & Handling
- Method: UPS Ground
- Availability: In stock - ships same or next business day
- Packaging: 12 x 10 x 8 inches sturdy box
- Weight: 1.4 lbs product, 2 lbs shipped
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