Jims Standard Solid Tappet for 1948-1984 Harley-Davidson Big Twin 2474-1

Proper tappet clearance is critical to cam longevity and reliable power delivery in Big Twin engines—and that's where JIMS solid tappets earn their reputation. These precision-machined components maintain consistent valve timing across both cast iron and aluminum blocks, eliminating the guesswork and ensuring your engine breathes the way it was designed to. Whether you're running a stocker or a high-lift cam, quality tappets are non-negotiable for durability.

The JIMS Standard Solid Tappet is hand-fitted with a .0002" running fit in the hydraulic unit, meaning minimal tolerance stacking and maximum reliability. The segmented parabolic cup matches JIMS roller rockers seamlessly, and air-gauging quality control guarantees consistency part-to-part. Set your clearance to .0007"–.0012" and you're ready to ride.

• Billet bearing steel construction
• Hand-fitted hydraulic unit
• Segmented parabolic pushrod seat
• Compatible cast iron blocks
• Compatible aluminum blocks
• Ultra-precision air gauged
• .0002" running fit tolerance
• .0007"–.0012" clearance recommended
• 1948–1984 Big Twin fitment
• MPN: 2474-1