SD Cummins Water By-Pass Kit
🛠️ Rear Coolant Bypass Kit – Fits 1998–2016 Dodge Cummins 5.9 & 6.7L (24V & Common Rail)
Reduce rear cylinder pressure and improve coolant flow with this bolt-on Rear Coolant Bypass Kit, designed specifically for 1998–2016 Dodge Cummins 24-valve and Common Rail cylinder heads. This system helps eliminate hotspots and pressure buildup at the back of the engine—no driveshaft or major drivetrain removal required.
Perfect for daily drivers, tow rigs, or high-horsepower builds, this kit is built with high-quality components and is fully adjustable to match your setup.
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🔧 Key Features:
✅ Fits 1998–2016 Cummins 5.9L & 6.7L 24V and Common Rail heads
✅ Reduces excessive coolant pressure at the rear of the engine
✅ No driveshaft or trans removal required for installation
✅ Includes aluminum thermostat spacer with O-ring and hardware
✅ Braided stainless AN-8 line with pre-installed fittings
✅ Brass adjustable bypass valve (45–100 psi range)
✅ Works on both 5.9L and 6.7L Cummins engines
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📦 What’s Included:
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Aluminum thermostat spacer w/ mounting hardware & O-ring
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AN-8 braided stainless bypass hose (fittings on both ends)
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Brass water bypass valve (adjustable from 45–100 psi)
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Protect your engine and extend coolant system life with this easy-to-install rear coolant bypass kit—built for performance, longevity, and simplicity.
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Ships within 1-2 business days.
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SD Cummins Water By-Pass Kit
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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.
Can I purchase OEM parts online or do I need to visit a dealership?
You don’t need to visit a dealership to get OEM parts. You can conveniently purchase genuine OEM components from authorized distributors and reputable online retailers like Turbo Tech Performance. Our online store provides a wide selection of high-quality parts delivered straight to your door.
Are parts from brands like Mopar, ACDelco, and Motorcraft interchangeable between different vehicle brands?
No, parts from Mopar, ACDelco, and Motorcraft are typically designed for specific vehicle brands. It’s crucial to ensure compatibility with your vehicle’s make and model by checking part numbers and consulting with a knowledgeable expert.
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.
Do OEM parts come with a warranty?
Yes, many OEM auto parts come with a manufacturer’s warranty that covers defects or issues. Be sure to check the warranty details for each part at the time of purchase, and keep your receipt for any potential warranty claims.