JAMES GASKETS SKU: 681-4462

James Gaskets Big Twin Front Tappet Block Gasket Paper .020 10-Pack - Harley-Davidson Evolution

$12.95
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About James Gaskets

James Gaskets has supplied American V-twin gaskets, seals and O-rings for decades and is one of the most widely stocked names for Harley-Davidson engine, primary and transmission rebuilds. When a service manual calls for a specific gasket, James almost always has an exact-fit answer.

Keep your Evolution Big Twin running clean with the James Gaskets front tappet block gasket. This .020 inch thick paper gasket is designed for a precise fit, preventing oil leaks and maintaining engine integrity. Sold in a convenient 10-pack, it's an essential item for regular maintenance or a full engine rebuild.

Why riders pick this

  • OEM-spec replacement for Evolution Big Twin engines
  • Durable paper construction for reliable sealing
  • .020 inch thickness ensures proper fit
  • Bulk 10-pack for shops or multiple services
  • Manufactured in the U.S.A

When you're wrenching on an Evolution-powered Harley, attention to detail matters. The James Gaskets Big Twin front tappet block gasket provides the reliable seal needed for the valve train. Manufactured in the U.S.A. to OEM specifications, this gasket ensures a leak-free connection, critical for the longevity and performance of your V-twin engine.

Precision Sealing for Evolution Engines

  • Engineered to OEM specifications for a direct replacement fit
  • Durable paper construction offers consistent sealing performance
  • Optimal .020 inch thickness for proper compression and seal
  • Convenient 10-pack for shops or multiple engine service
  • Made in the U.S.A. ensuring quality and reliability

Maintain Your Big Twin's Performance

Whether you're performing routine maintenance, a top-end refresh, or a complete engine overhaul, having the right gaskets on hand is crucial. This 10-pack of front tappet block gaskets ensures you're prepared for any job, minimizing downtime and keeping your Harley-Davidson on the road. Pair with other James Gaskets products for a comprehensive, leak-free engine build.

Specifications

  • Brand: James Gaskets
  • Manufacturer Part #: 18634-48-C
  • Length: 3.1 in
  • Width: 4 in
  • Height: 0.5 in
  • Weight: 0.049 lbs
  • Quantity: 10 per pack

Common questions

How many gaskets are included in this pack?

This product includes a pack of 10 front tappet block gaskets, ideal for shops or riders who perform frequent engine maintenance.

What engine models does this gasket fit?

This front tappet block gasket is designed for Harley-Davidson Evolution Big Twin engines from 1991-1999, including many Touring, Softail, and Dyna models. Please confirm fitment with your specific year and model.

Is this an OEM Harley-Davidson part?

No, this is an aftermarket gasket from James Gaskets, manufactured to meet or exceed OEM specifications for a direct replacement fit.

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.
BRANDJames Gaskets
TYPEGaskets/Seals
SKU681-4462
WEIGHT0.05 lb
Please contact us to confirm fitment for your specific motorcycle, or check the product title for compatibility notes.
CUSTOMER REVIEWS
5
14 RATINGS
5★ 14
4★ 0
3★ 0
2★ 0
1★ 0
✓ VERIFIED
Oct 1, 2023

Excellent set

Excellent set for the price, easy to install, very durable products. I would recommend this set 10/10

— Eric S
✓ VERIFIED
Sep 11, 2023

Good quality

Breaking engine in right now and everything is holding tight. Very pleased

— Hawk R
✓ VERIFIED
Aug 28, 2023

Gasket set

Great gasket set, includes everything you need to reseal top end.

— James N
✓ VERIFIED
Jul 31, 2021

Quality parts in a timely manner

— Anonymous
✓ VERIFIED
Mar 29, 2021

Fit like it should, super quick shipping

— Anonymous
✓ VERIFIED
Mar 21, 2021

Gasket set seems to be of good quality. Everything fit just like oem gaskets and seals but made better lol. So far so good, Everything is nice a dry now.

— Anonymous