Radiator Overflow Pipe – Subaru Impreza GC8 | Roo Racing

OEM Equivalent: 45156AA000 | Genuine No Longer Available

This is one of those parts Subaru owners only notice after it fails.

The factory GC8 radiator overflow pipe is now no longer in production, and originals are brittle, cracked, or already broken on most cars after 20+ years of heat cycles.

This remanufactured overflow pipe has been produced to replace the discontinued Genuine Subaru part 45156AA000, restoring proper coolant overflow routing without resorting to makeshift hose fixes or universal parts that never quite fit right.

Product Details

• Remanufactured replacement

• OEM-equivalent fitment and routing

• Designed to replace discontinued Subaru part 45156AA000

Fitment

• Subaru Impreza GC8

• Suits applicable EJ-powered models using the factory hard overflow pipe

Why this matters

• Prevents coolant leaks and overflow issues

• Maintains correct radiator-to-overflow bottle function

• Solves a known NLA genuine parts problem

• Clean, factory-style solution — not a workaround

Roo Racing Tip
If you’re refreshing the cooling system on a GC8, replace this while access is easy. Old pipes tend to fail suddenly once disturbed.