COMETIC SKU: 68-9312F

Cometic Sportster Starter Gasket 10-Pack - Harley Evolution & XL Sportster

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About Cometic

Cometic Gasket manufactures multi-layer steel head gaskets and complete gasket kits in Concord, Ohio. On a built V-twin running higher compression or a big-bore kit, the MLS head gasket is what keeps the top end sealed — which is why Cometic is the default spec on so many engine builds.

Keep your Sportster's starter motor sealed tight with this 10-pack of Cometic Sportster Starter Gaskets. Engineered to OEM specifications, these gaskets provide a reliable, leak-free seal for your Evolution or XL engine. Ideal for shops or riders who prefer to have spares on hand.

Why riders pick this

  • OEM-spec replacement for reliable sealing
  • Specifically designed for Evolution and XL Sportster engines
  • Prevents leaks at the starter motor mounting surface
  • Convenient 10-pack for multiple uses or spares

When you're wrenching on your Sportster, a reliable gasket is critical for preventing leaks and maintaining performance. This 10-pack of Cometic Sportster Starter Gaskets is designed as a direct replacement for the factory part, ensuring a precise fit and dependable seal for your starter motor's mounting surface.

Engineered for Performance and Durability

  • Direct OEM-equivalent replacement for a perfect fit
  • Modern gasket compounds resist leaks and ensure a long service life
  • Designed specifically for Evolution and XL Sportster V-twin engines
  • Convenient 10-pack quantity for multiple services or spares

Smart Choice for Maintenance and Builds

Whether you're doing routine maintenance, a full engine rebuild, or just chasing down an oil leak, having the right gaskets on hand saves time and frustration. These Cometic gaskets are a smart choice for any Sportster owner looking for quality and value in a critical sealing component. Confirm fitment for your specific year and model to ensure a smooth installation.

Specifications

  • Brand: Cometic
  • Manufacturer Part #: C9312F
  • Quantity: 10 per pack
  • Weight: 0.14 lbs

Common questions

What OEM part number does this gasket replace?

This Cometic gasket is a direct replacement for Harley-Davidson OE# 31488-81B, ensuring a precise fit and function.

Will this gasket fit Twin Cam or Milwaukee-Eight engines?

No, this specific gasket is designed only for Evolution and XL Sportster engines. Twin Cam and Milwaukee-Eight models require different gaskets.

Why is this gasket sold in a 10-pack?

The 10-pack quantity is ideal for professional shops, riders with multiple bikes, or anyone who wants to keep spare gaskets readily available for future maintenance.

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.
BRANDCometic
TYPEGaskets/Seals
SKU68-9312F
WEIGHT0.14 lb
Please contact us to confirm fitment for your specific motorcycle, or check the product title for compatibility notes.
CUSTOMER REVIEWS
5
3 RATINGS
5★ 3
4★ 0
3★ 0
2★ 0
1★ 0
✓ VERIFIED
May 30, 2022

Fit perfect

— Anonymous
✓ VERIFIED
Nov 1, 2019

5 Stars

— Anonymous
✓ VERIFIED
Feb 4, 2013

Good set of gaskets

— Anonymous