✉ sales@nightforgeparts.com Email us
M-F 9:00 am – 6:00 pm (EST) · Do It Right the First TimeM-F 9-6pm EST
Home ›1984-2017 Harley Davidson Touring / Softail / Dyna / Trike Valve Stem Seal - FKM Rubber, Metal Body (5/16 Stem / .420 Guide)
✓ In Stock

1984-2017 Harley Davidson Touring / Softail / Dyna / Trike Valve Stem Seal - FKM Rubber, Metal Body (5/16 Stem / .420 Guide)

$0.60
Prices are in USD. Shipping calculated at checkout.
  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa
🔍 Fitment Verified
🛡️ Warranty Included
↩️ 30-Day Returns

This FKM rubber valve stem seal is engineered to provide a high-performance oil seal within the cylinder head, preventing lubricant from migrating down the valve guides into the combustion chamber. By maintaining a clean combustion environment, this seal helps reduce oil consumption, prevents spark plug fouling, and minimizes carbon deposits on the valve seats.

The seal is constructed from premium FKM (Viton) rubber, offering exceptional resistance to high temperatures and chemical degradation from engine oils and fuels. Featuring a height of .405", this direct-fit component ensures a precise fit and long-lasting sealing integrity for both Evolution Big Twin and Twin Cam engines.

This valve stem seal is a specialized replacement for 1984-2017 Harley Davidson models.

Add a custom.kit_contents metafield to this product.

Weight
0.004400
Parts Type
Valve Stem Seal
Material
FKM Rubber
Width
.558"
Height
.405"
Seal Type
Metal Body
Nominal Stem Size
5/16"
Nominal Guide Size
.420"

Compatible Models

160 Fits
Touring 1984–2016 65 models ▼
Softail 1984–2017 63 models ▼
Dyna 1991–2016 30 models ▼
Trike 2009–2016 2 models ▼

⚠ Always verify fitment before ordering.