Granatelli Water Cooled Diaphragm Design 44MM Turbo Wastegate #540244
Granatelli 44mm External Turbo Wastegate
- Precise and reliable boost control
- Water-cooled top for improved thermal stability
- Billet aluminum construction for strength and durability
- V-band flanges for easy installation
- Built to handle high heat and serious power
- Ideal for high-performance turbo setups
Granatelli Motor Sports Water-Cooled Diaphragm Wastegate – 44mm
SKU: 540244
Engineered for Maximum Stability, Cooler Operation, and Rock-Solid Boost Control
When you're pushing serious boost, heat becomes your biggest enemy. Granatelli’s water-cooled diaphragm wastegate eliminates that weakness by circulating coolant through the diaphragm housing, keeping temperatures stable and performance consistent. The result? Harder runs, tighter regulation, and a wastegate that doesn’t flinch when the heat is on.
Designed for drag racing, high-performance street use, and heavy-hitting diesel setups, this 44mm wastegate delivers the reliability and precision your build deserves.
Water-Cooled Diaphragm Advantage
Traditional wastegates struggle as temperatures climb. This water-cooled diaphragm system stays thermally stable under extreme exhaust heat, giving you:
- Consistent boost control on hot laps
- More accurate boost regulation
- Longer diaphragm life
- Reduced boost creep in high-heat environments
A black anodized billet aluminum cap and a natural-finish stainless steel base complete a design built to take abuse without missing a beat.
Straightforward Installation & Full Adjustability
Installation is simple with the included V-Band inlet and outlet flanges and clamps. The wastegate comes with two pre-installed springs—4.1 PSI and 4.7 PSI—giving you a ready-to-run baseline right out of the box.
The additional springs in the Five-Spring Kit include 3.1 PSI, 5.3 PSI, and 5.4 PSI options. Mix, match, and stack to achieve your exact boost pressure. No guesswork. No compromise.
Key Features
- True 44mm valve diameter for maximum exhaust flow
- Water-cooled diaphragm housing for unmatched thermal stability
- Precise, consistent boost control under extreme conditions
- Black anodized billet aluminum top cap for durability and a stealth finish
- Heavy-duty stainless steel base with natural finish
- Includes V-Band inlet/outlet flanges and clamps
- Five-spring kit included, with 4.1 PSI and 4.7 PSI pre-installed plus 3.1 PSI, 5.3 PSI, and 5.4 PSI springs for fine tuning
The Ultimate Boost Control Solution
If you demand power, predictability, and hardware that stays locked in under brutal heat, this is your wastegate. Built for racers, street warriors, and diesel brutes alike, Granatelli’s water-cooled diaphragm wastegate delivers when controlling boost isn’t optional—it’s mission-critical.
- 540244
- 540244
- 802735042344
- Granatelli Motor Sports
- New
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Are OEM products more expensive than aftermarket alternatives?
OEM products might have a higher upfront cost compared to aftermarket parts, but their superior quality and durability often make them a more cost-effective choice over time. Investing in OEM ensures you’re getting parts specifically designed for your vehicle, which can lead to better performance and longevity.
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Are parts from brands like Mopar, ACDelco, and Motorcraft interchangeable between different vehicle brands?
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Can I install OEM parts myself, or is it better to have a professional handle it?
While some OEM parts can be installed by DIY enthusiasts, the complexity of installation can vary. For the best results and to ensure proper fitment and performance, we recommend having a trained mechanic install the parts, especially if you’re unfamiliar with automotive repairs.
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