KPMI Red Viton Valve Stem Seal 7.0mm 4-Pack - Harley Twin Cam
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.
Ensure your Harley Twin Cam 88-103 cubic inch engine runs optimally with KPMI Red Viton valve stem seals. Sized at 7.0mm, these seals are engineered to prevent oil from migrating into the combustion chamber, which can lead to carbon buildup and performance issues. They are built to handle maximum valve lift without compromising the seal.
Why riders pick this
- 7.0mm size for optimal Twin Cam fitment
- Viton material resists high heat and petroleum
- Prevents oil migration into combustion chamber
- Accommodates maximum valve lift without leaking
Crafted from durable Viton material, these valve stem seals are highly resistant to the extreme temperatures and petroleum byproducts found within your engine. This resilience ensures a consistent and effective seal, contributing to a cleaner burning engine and sustained power output over time.
Enhanced Engine Protection and Performance
- Viton material withstands high temperatures and resists petroleum products
- Prevents oil from entering the combustion chamber, reducing detonation
- Allows for maximum valve lift without leakage
- Supplied as a 4-pack for comprehensive valve servicing
Critical for Twin Cam Engine Health
Maintaining the integrity of your valve stem seals is vital for preventing oil consumption and carbon accumulation, which can negatively impact engine efficiency and longevity. These KPMI seals offer a robust solution for Twin Cam owners looking to preserve or enhance their engine's performance. Always confirm fitment with your specific model year before purchase.
Specifications
- Brand: KPMI
- Manufacturer Part #: 71030-4
- Valve Stem Size: 7.0mm
- Length: 1.8 in
- Width: 3.45 in
- Height: 1.65 in
- Weight: 0.12 lbs
- Quantity: 4 per pack
Common questions
Are these seals compatible with my Twin Cam 88 engine?
Yes, these 7.0mm KPMI valve stem seals are designed for Harley-Davidson Twin Cam 88 and 103 cubic inch engines.
How many valve stem seals are included in this package?
Each pack contains four valve stem seals, providing enough for a full engine service or for specific cylinder work.
Why is Viton material preferred over standard rubber for valve stem seals?
Viton offers superior resistance to the high temperatures and chemical exposure within the combustion chamber, ensuring a more durable and effective seal than standard rubber.
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 | 191-37022 |
| WEIGHT | 0.12 lb |
