
GM 94011603 Coolant Bypass Tube Lower Pipe Seal for 2001-2016 Duramax – Genuine OEM Replacement
Ensure your Duramax engine’s cooling system operates at peak efficiency with the GM 94011603 Coolant Bypass Tube Lower Pipe Seal. This genuine OEM seal is engineered for a precise, factory fit, delivering the reliability and performance your 2001-2016 6.6L Duramax deserves. By maintaining a proper seal, it prevents coolant leaks and safeguards your engine’s critical components.
Designed to meet or exceed factory specifications, this seal provides long-lasting durability and optimal performance. Don’t settle for inferior aftermarket alternatives—trust the quality and fit of a genuine GM part to keep your engine running smoothly.
Key Features:
- Genuine GM Part: Specifically designed for a perfect fit on your 2001-2016 GM 6.6L Duramax engine.
- OEM Quality: Delivers reliable performance and a long service life, meeting the highest industry standards.
- Leak Prevention: Ensures a secure seal to prevent coolant leaks, maintaining engine efficiency and safety.
- Cost-Effective Solution: Avoid costly repairs by choosing a high-quality, OEM seal over aftermarket options.
Upgrade to the GM 94011603 Coolant Bypass Tube Lower Pipe Seal for unmatched durability, perfect fit, and long-term engine protection.

GM 94011603 Coolant Bypass Tube Lower Pipe Seal for 2001-2016 Duramax – Genuine OEM Replacement
Ensure your Duramax engine’s cooling system operates at peak efficiency with the GM 94011603 Coolant Bypass Tube Lower Pipe Seal. This genuine OEM seal is engineered for a precise, factory fit, delivering the reliability and performance your 2001-2016 6.6L Duramax deserves. By maintaining a proper seal, it prevents coolant leaks and safeguards your engine’s critical components.
Designed to meet or exceed factory specifications, this seal provides long-lasting durability and optimal performance. Don’t settle for inferior aftermarket alternatives—trust the quality and fit of a genuine GM part to keep your engine running smoothly.
Key Features:
Genuine GM Part: Specifically designed for a perfect fit on your 2001-2016 GM 6.6L Duramax engine.
OEM Quality: Delivers reliable performance and a long service life, meeting the highest industry standards.
Leak Prevention: Ensures a secure seal to prevent coolant leaks, maintaining engine efficiency and safety.
Cost-Effective Solution: Avoid costly repairs by choosing a high-quality, OEM seal over aftermarket options.<[...]
GM 94011603 Coolant Bypass Tube Lower Pipe Seal for 2001-2016 Duramax – Genuine OEM Replacement
Ensure your Duramax engine’s cooling system operates at peak efficiency with the GM 94011603 Coolant Bypass Tube Lower Pipe Seal. This genuine OEM seal is engineered for a precise, factory fit, delivering the reliability and performance your 2001-2016 6.6L Duramax deserves. By maintaining a proper seal, it prevents coolant leaks and safeguards your engine’s critical components.
Designed to meet or exceed factory specifications, this seal provides long-lasting durability and optimal performance. Don’t settle for inferior aftermarket alternatives—trust the quality and fit of a genuine GM part to keep your engine running smoothly.
Key Features:
- Genuine GM Part: Specifically designed for a perfect fit on your 2001-2016 GM 6.6L Duramax engine.
- OEM Quality: Delivers reliable performance and a long service life, meeting the highest industry standards.
- Leak Prevention: Ensures a secure seal to prevent coolant leaks, maintaining engine efficiency and safety.
- Cost-Effective Solution: Avoid costly repairs by choosing a high-quality, OEM seal over aftermarket options.
Upgrade to the GM 94011603 Coolant Bypass Tube Lower Pipe Seal for unmatched durability, perfect fit, and long-term engine protection.