TGK Motorsport Audi 4.0T Ultimate Billet Coolant Kit
S6/S7
$879.99
Sale price
$879.99
Regular price
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TGK Motorsport Audi 4.0T Ultimate Billet Coolant Kit
$879.99
Sale price
$879.99
Regular price
Overview
Address all three of the front coolant components in the Audi 4.0T cooling system with the TGK Motorsport Ultimate Coolant Reliability Bundle — featuring our Billet Front Thermostat Piping Kit, Coolant Shutoff Valve Delete Kit, and Billet Coolant Flange. This comprehensive upgrade replaces all factory plastic fittings with 6061-T6 billet aluminum components and introduces critical sealing improvements to eliminate coolant leaks and overheating risks once and for all.
The Audi 4.0T engine's cooling system is plagued by multiple weak points that commonly result in hard-to-diagnose coolant leaks, vacuum-related failures, and even engine-threatening overheating. Each of these components is vulnerable due to the OEM use of plastic housings and minimal sealing — and all three are known to fail, often at the worst time. This all-in-one kit provides a permanent solution by replacing the front thermostat elbow, coolant shutoff valve, and main coolant flange with precision-machined billet aluminum parts designed for performance, reliability, and peace of mind.
Specifications
| Material | 6061-T6 Billet Aluminum |
| Finish | CNC Machined |
| Kit Contents | Front Thermostat Piping Kit, Coolant Shutoff Valve Delete Kit, Billet Coolant Flange |
| Sealing System | Dual-Gasket Design (Thermostat Piping) |
| Fitment | Direct OEM Replacement |
| Installation | PDF Instructions Included |
Features & Benefits
✓
Complete Front Coolant System UpgradeAddresses all three known failure points in one comprehensive kit for total peace of mind.
✓
Dual-Gasket Sealing SystemEnhanced redundancy and leak prevention on the thermostat piping for superior reliability.
✓
Dangerous Shutoff Valve EliminationRemoves the vacuum-actuated valve that commonly fails closed, preventing overheating risks.
✓
6061-T6 Billet ConstructionPrecision-machined aluminum components replace weak plastic fittings for motorsport-grade durability.
✓
Direct OEM+ FitmentDrop-in replacement with superior materials and engineering for enhanced performance.
✓
Eliminates Hidden Coolant LossPrevents hard-to-diagnose leaks and system degradation from failing plastic components.
Frequently Asked Questions
Why bundle all three coolant components together?
Each component is a known failure point on the 4.0T, and they often fail silently. By upgrading all three at once, you get a complete permanent solution whether chasing down mystery leaks or proactively upgrading for reliability.
What makes the shutoff valve so dangerous when it fails?
The vacuum-actuated shutoff valve commonly fails in the closed position, completely blocking coolant circulation and creating severe overheating risk that can damage the engine.
How does the dual-gasket sealing system work?
Unlike the OEM single O-ring design, our billet thermostat piping uses two gaskets for enhanced redundancy and leak prevention, especially during cold starts and high-pressure conditions.
Will this kit work on tuned 4.0T engines?
Yes, the billet aluminum construction and enhanced sealing make this kit ideal for tuned vehicles that put additional stress on the cooling system components.
Are installation instructions included?
Yes, detailed PDF installation instructions are provided. Click HERE for the installation guide.