KPMI Red Viton Valve Stem Seals - 4 Pack - Harley Milwaukee-Eight
About KPMI
Kibblewhite Precision Machining supplies valves, valve springs, guides and complete top-end kits used by professional V-twin engine builders. Its black diamond valves and spring kits are a standard specification on high-lift cam builds.
The KPMI Red Viton valve stem seals are specifically engineered for Harley-Davidson Milwaukee-Eight engines, available in a convenient 4-pack. These seals are crafted from Viton material, known for its exceptional resistance to high temperatures and petroleum products, ensuring a tight seal even under maximum valve lift.
Why riders pick this
- Viton material resists high temperatures and petroleum
- Maintains tight seal under maximum valve lift
- Prevents oil blow-by into combustion chamber
- 4-pack quantity for comprehensive service
Maintaining a perfect seal around your valve stems is crucial for engine health and performance. Worn or inferior valve stem seals can lead to oil entering the combustion chamber, resulting in oil consumption and performance issues. These KPMI Viton seals are designed to prevent such blow-by, ensuring your engine runs cleaner and more efficiently.
Robust Sealing for Milwaukee-Eight Engines
- Constructed from high-quality Viton material for superior heat and chemical resistance
- Maintains a tight seal even under aggressive valve lift and high engine temperatures
- Effectively prevents oil from entering the combustion chamber
- Supplied in a 4-pack, ideal for a complete cylinder head service
Essential for Engine Longevity
Whether you're performing routine maintenance or rebuilding a high-performance Milwaukee-Eight, these KPMI valve stem seals are a vital component. Their durable Viton construction ensures long-lasting performance, reducing oil consumption and maintaining consistent engine output. For proper installation, always refer to your service manual or consult a qualified mechanic.
Specifications
- Brand: KPMI
- Manufacturer Part #: 71046-4
- Quantity: 4 per pack
- Length: 5.12 in
- Width: 3.5 in
- Height: 1 in
- Weight: 0.12 lbs
Common questions
How many valve stem seals are included in this pack?
This pack contains four valve stem seals, which is typically enough for one cylinder head or for servicing multiple valves, depending on your engine configuration.
Why is Viton material used for these seals?
Viton is a high-performance fluoropolymer that offers superior resistance to extreme temperatures, engine oils, and fuel additives compared to conventional rubber. This ensures a more durable and effective seal over time, especially in high-performance applications.
Will these seals help reduce oil burning in my engine?
Yes, worn valve stem seals are a common cause of oil burning, as they allow oil to leak past the valve guides and into the combustion chamber. Replacing them with these high-quality Viton seals can significantly reduce or eliminate oil blow-by.
Ordering from Vtwinbikers
- Brand new, sourced through authorized US distribution — never used, never grey-market.
- Not sure it fits? Use Shop by Bike to filter by your year and model, or email us and we will confirm before you order.
- Harley-Davidson and Indian Motorcycle is all we do, so you are talking to people who ride what you ride.
| BRAND | KPMI |
| TYPE | Engine |
| SKU | 191-37032 |
| WEIGHT | 0.12 lb |
