S&S's Precision Tappets replaced both their standard and premium tappet lines: each one is hand assembled to exacting tolerances for quiet operation and rapid pump-up. A set of four.
FITMENT
S&S fitment: 1999–2017 Big Twin, 2000-up Sportster, and 2017-up M8 models. In our 2014+ Touring catalog: all 2014–2016 Twin Cam Touring and 2017-up M8 Touring models.
Not sure it fits your bike? Email info@norcalbaggersupply.com — email is the fastest way to reach us — and we'll confirm before you order. You can also call 916-626-9030 (Mon–Fri, 9 AM–5 PM PT).
SPECIFICATIONS
Manufacturer: S&S Cycle — part number 330-0718
Set of 4 hydraulic tappets
Reduced valvetrain noise from start-up to shut-down (S&S)
Close tolerances for low leak-down rates
Fast pump-up and superior high-RPM performance (S&S)
Made in the USA
INSTALLATION
Tappets are replaced with the cam chest open (M8) or through the tappet blocks (Twin Cam). Follow the S&S instruction sheet included in the box and your Harley-Davidson service manual. S&S's official cam chest install video covers tappet installation and is embedded below. Professional installation is recommended; email us for an install-partner referral.
QUESTIONS RIDERS ASK
How many come in a set? Four — one full set for a Big Twin or M8 engine.
Why do tappets matter on a cam swap? Worn tappets bleed down and get noisy, and they can't follow an aggressive lobe. Precision Tappets' close tolerances hold pressure for low leak-down, fast pump-up, and quiet running — they're the tappets S&S puts in its own cam chest kits.
