K2 Industries
1997-2003 Buick Regal Grand Prix OEM Radiator 3.1L 3.8L
1997-2003 Buick Regal Grand Prix OEM Radiator 3.1L 3.8L
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1997–2003 Buick Regal / Grand Prix OEM Radiator — 3.1L / 3.8L
Direct replacement radiator for 3.1L and 3.8L V6 engines. Factory OEM construction designed for exact fitment and thermal performance. Tested core ensures reliable cooling without modification.
Key Features
- OEM Construction - Built to factory specifications for drop-in compatibility
- Dual Engine Compatibility - Works with both 3.1L and 3.8L V6 powerplants
- Complete Core Assembly - All tanks and internals included; ready to install
Specs
- Construction: Hard panel aluminum/plastic tank assembly
- Engine Displacement: 3.1L / 3.8L V6
- Condition: OEM replacement core
What's Included
- Radiator core assembly
- Upper and lower tank
Frequently Asked Questions
Will this bolt straight in, or do I need to modify any mounting?
Factory mounting points are preserved — this radiator attaches at OEM locations without drilling or brackets. Confirm your engine displacement matches before ordering.
Do I need to flush the cooling system before installing this?
Yes. Flush old coolant and debris from your block and hoses first. Old fluid can clog a new core quickly. Use distilled water and a flush kit if buildup is heavy.
What if the radiator leaks after I install it?
Check all hose clamps and tank connections for tightness — vibration during shipping can loosen fittings. If a seam leaks after that, contact our support team with photos for warranty evaluation.
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