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Thumbnail Filmstrip of L5P Duramax Valve Stem Seal (Top Hat Style) SBI 122-1510 Images
The SBI Valve Stem Seal 122-1510 is a sophisticated engineering solution designed specifically for the GM 6.6L Duramax L5P. In the high-performance world of modern diesel engines, "oil control" is the difference between a clean-running machine and one plagued by carbon buildup or excessive consumption. These "Top Hat Style" seals are far more than simple barriers; they act as precision metering devices. By allowing a microscopically controlled film of oil to pass through the contact lip, they provide the essential lubrication needed for the valve stem and guide bore to move without friction-induced wear, while simultaneously preventing excess oil from entering the combustion chamber.
- Dual-Function "Top Hat" Design: The seal carrier body is uniquely engineered to incorporate the valve spring seat, ensuring the seal remains perfectly centered and stable even under high-RPM stress.
- Universal Application: This versatile component is designed for use on either the intake or exhaust side, simplifying the rebuild process for the Duramax L5P.
- Oversize Compatibility: Precision-molded to accommodate valve stems up to 0.003-inch oversize, making it the ideal choice for heads that have undergone professional machining or stem resizing.
- Positive Oil Metering: Utilizing advanced elastomer technology, it maintains a positive seal that precisely regulates oil flow to prevent "blue smoke" on startup and oil-fouled valves.
- OE-Style Replacement: Manufactured to meet or exceed original equipment standards, ensuring a drop-in fit that restores factory-level oil management.
Choosing the SBI 122-1510 is a critical step in any professional engine service or performance rebuild. Because these seals are sold individually, they provide the flexibility required for everything from a single-valve repair to a complete 32-seal overhaul. Without a high-quality positive seal, oil can leak down the valve guide, leading to detrimental carbon deposits on the back of the valve which disrupt airflow and decrease volumetric efficiency. By installing these precision-engineered Top Hat seals, you are protecting your L5P’s valvetrain from premature wear and ensuring that your engine remains clean, efficient, and powerful for the long haul.
Specifications:
Style: Top Hat
Type: Positive
Seal O.D: 0.8310
Top Stem I.D: 0.2283
Overall Height: 0.8091
Bottom Seal I.D: 0.4429
Inner Seal Height: 0.5906
Material: Fluoroelastomer
Nominal Stem Diameter: 7mm
Nominal Guide O.D: 0.453-0.463
Note: Qty of 32 valve stem seals required per engine.
The SBI Valve Stem Seal 122-1510 is a sophisticated engineering solution designed specifically for the GM 6.6L Duramax L5P. In the high-performance world of modern diesel engines, "oil control" is the difference between a clean-running machine and one plagued by carbon buildup or excessive consumption. These "Top Hat Style" seals are far more than simple barriers; they act as precision metering devices. By allowing a microscopically controlled film of oil to pass through the contact lip, they provide the essential lubrication needed for the valve stem and guide bore to move without friction-induced wear, while simultaneously preventing excess oil from entering the combustion chamber.
Dual-Function "Top Hat" Design: The seal carrier body is uniquely engineered to incorporate the valve spring seat, ensuring the seal remains perfectly centered and stable even under high-RPM stress.
Universal Application: This versatile component is designed for use on either the intake or exhaust side, simplifying the rebuild process for the Duramax L5P.
Oversize Compatibility: Precision-molded to accommodate valve stems up to 0.003-inch oversize, making it the ideal choice for heads [...]
The SBI Valve Stem Seal 122-1510 is a sophisticated engineering solution designed specifically for the GM 6.6L Duramax L5P. In the high-performance world of modern diesel engines, "oil control" is the difference between a clean-running machine and one plagued by carbon buildup or excessive consumption. These "Top Hat Style" seals are far more than simple barriers; they act as precision metering devices. By allowing a microscopically controlled film of oil to pass through the contact lip, they provide the essential lubrication needed for the valve stem and guide bore to move without friction-induced wear, while simultaneously preventing excess oil from entering the combustion chamber.
- Dual-Function "Top Hat" Design: The seal carrier body is uniquely engineered to incorporate the valve spring seat, ensuring the seal remains perfectly centered and stable even under high-RPM stress.
- Universal Application: This versatile component is designed for use on either the intake or exhaust side, simplifying the rebuild process for the Duramax L5P.
- Oversize Compatibility: Precision-molded to accommodate valve stems up to 0.003-inch oversize, making it the ideal choice for heads that have undergone professional machining or stem resizing.
- Positive Oil Metering: Utilizing advanced elastomer technology, it maintains a positive seal that precisely regulates oil flow to prevent "blue smoke" on startup and oil-fouled valves.
- OE-Style Replacement: Manufactured to meet or exceed original equipment standards, ensuring a drop-in fit that restores factory-level oil management.
Choosing the SBI 122-1510 is a critical step in any professional engine service or performance rebuild. Because these seals are sold individually, they provide the flexibility required for everything from a single-valve repair to a complete 32-seal overhaul. Without a high-quality positive seal, oil can leak down the valve guide, leading to detrimental carbon deposits on the back of the valve which disrupt airflow and decrease volumetric efficiency. By installing these precision-engineered Top Hat seals, you are protecting your L5P’s valvetrain from premature wear and ensuring that your engine remains clean, efficient, and powerful for the long haul.
Specifications:
Style: Top Hat
Type: Positive
Seal O.D: 0.8310
Top Stem I.D: 0.2283
Overall Height: 0.8091
Bottom Seal I.D: 0.4429
Inner Seal Height: 0.5906
Material: Fluoroelastomer
Nominal Stem Diameter: 7mm
Nominal Guide O.D: 0.453-0.463
Note: Qty of 32 valve stem seals required per engine.