COMETIC - C9780 - Top End Gasket Kit - 95" Big Bore - EST - '99-'04 Twin Cam
The COMETIC C9780 Top End Gasket Kit is an EST (Extreme Sealing Technology) rebuild set with embossed stainless steel head, base, and rocker gaskets for the 95" big-bore displacement (3.875" bore) on 1999-2004 Harley-Davidson Twin Cam models (including the Electra Glide Ultra Classic FLHTCU, Electra Glide Standard, and Electra Glide Classic), with proprietary rubber covering that draws heat away from the combustion ring to eliminate hot spots — made in the USA.
Features
- EST (Extreme Sealing Technology) gasket kit includes embossed stainless steel head, base, and rocker gaskets covered with a proprietary rubber material
- Head gasket material allows heat to be drawn away from the combustion ring and dissipated evenly across the gasket surface to eliminate hot spots and gasket failure
- Set contains all the necessary gaskets, seals, and O-rings to rebuild the top end from the cylinder base upward
- Made in the USA
OEM Part Numbers: 17052-99S
Specs
- Engine Type: 4-Stroke
- Product Name: Gasket Kit
- Riding Style: Street
- Material: MLS (Multi-layer Steel)
- Displacement: 95"
- Features: For '99-'04 Twin Cam
- Bore Size: 3.875"
- Type: Top End
- Material: Rubber
- Thickness: 0.040"
- Units: Kit
- Thickness: 0,040"
- Thickness: 1.02 mm
OEM Part Numbers
- 17052-99S
Frequently Asked Questions - COMETIC - C9780 - Top End Gasket Kit - 95" Big Bore - EST - '99-'04 Twin Cam
How do I know if this part fits my vehicle?
Check the fitment information listed on this page against your exact year, make, model, and (where applicable) trim, engine size, or configuration. If your exact vehicle isn't listed, or you're not sure, use the product chat on this page or contact our support team before ordering - we're glad to help confirm fitment.
What does it mean if a product is listed as universal fit?
Universal fit means the product is designed to work across a range of vehicles, not that it's guaranteed to fit every one. Compare the listed measurements, mounting requirements, and connector or hardware specs against your specific vehicle before ordering, since some installations may need additional hardware or minor fabrication.
Where can I find installation instructions for this product?
General installation notes are provided above where available. For detailed step-by-step instructions, refer to the manufacturer's documentation included with the product, or use the product chat on this page for questions about difficulty, required tools, or whether professional installation is recommended.
What if I have more questions about this product?
Use the product chat on this page for fitment, specs, installation, and compatibility questions, or contact our support team directly for help before you order.
