509979 Weld-in aero filler, vented with lock
incl. VAT
Chapter members save 15% · Sign in for member pricing
Estimated delivery: 3–15 working days
Authorised
Iron City Dealer
14-Day Returns
Easy & hassle-free
Secure Checkout
256-bit encryption
Free UK Delivery
On orders over £100
Specifications
- Brand
- MCS
- Part Number
- 509979
- OEM Reference
- 509979
- Pack Quantity
- Each
- Category
- Gascaps
- VAT Rate
- 20%
About This Product
This MCS weld-in aero filler is designed for custom gas tank fabrication on Harley-Davidson motorcycles. The kit includes a vented cap with a locking mechanism, providing both security and proper tank pressure regulation. The weld-in bung allows for a flush, aerodynamic look that is popular in custom chopper and cafe racer builds. MCS provides this component as a versatile solution for builders creating one-off fuel tanks or modifying existing ones. Identified by OEM number 509979, this filler neck and cap assembly is sold individually and requires professional welding for installation.
Manufacturer part number: 509979.
Related Products
View all →
More from MCS
View all →
Who are we? Leeds Harley-Davidson - Iron City Motorcycles
This product is fulfilled by Iron City Motorcycles, Leeds' authorised Harley-Davidson® dealer, serving the UK with a full range of Genuine Motorclothes®, dealer merchandise, and official Harley-Davidson parts & accessories — available for UK and international delivery.
From OEM Parts to retro lifestyle wear to aftermarket stockits we have what you need to keep you riding all year round.
Use our official OEM parts finder to browse our full Genuine Harley-Davidson® Parts and our associated approved aftermarket catalogues.