KPMI Valve Stem Seal - 4/PK M8 — Harley-Davidson Road King Special, Street Glide, Street Glide Special (2017-2025)

KPMI Red Viton® valve stem seals for Milwaukee-Eight engines, sold in a 4-pack. These seals are engineered to resist high temperatures and petroleum products while maintaining a tight seal under maximum valve lift, preventing oil from entering the combustion chamber.

Features

• Viton® material resists high temperatures and combustion by-products
• Maintains seal under maximum valve lift
• Prevents oil blow-by into combustion chamber
• 4-pack quantity

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

Fitment

Fits Harley-Davidson Milwaukee-Eight (M8) engines.

Frequently Asked Questions

What's included in this pack?

Four valve stem seals — enough for a complete engine rebuild or one engine with spares.

Why Viton® material?

Viton® withstands sustained high heat and fuel additives better than rubber, maintaining a tight seal under aggressive valve lift.

Will these prevent oil burning?

Yes — worn valve stem seals allow oil to enter the combustion chamber. These seals replace that function and reduce blow-by.

Do these fit Twin Cam engines?

These are sized for Milwaukee-Eight engines. Twin Cam owners need a different part number.