Mopar Hemi Phaser Limitr Kit 5.7/6.4L

The COMP CAMS Mopar Hemi Phaser Limiter Kit for 5.7L and 6.4L engines is a precision camshaft phaser control component engineered for Gen III Hemi platform owners who demand tighter valve timing management. This phaser limiter restricts camshaft phaser rotation to a maximum of 14 degrees, eliminating excessive phaser travel that can compromise engine stability and performance consistency across varying RPM ranges.

Mopar Gen III Hemi engines use variable camshaft timing to optimize efficiency and emissions at different load conditions. Without limitation, phaser movement can become erratic under certain conditions—particularly during aggressive driving, high-RPM operation, or modified tune scenarios. The 14-degree limit constraint prevents over-travel while allowing sufficient phaser authority for normal OEM functionality. This kit addresses a known variable on Hemi platforms where factory phaser range can occasionally exceed optimal bounds, making it essential for builders prioritizing predictable cam timing behavior and engine longevity.

This component is ideal for 5.7L and 6.4L Hemi engine builders, performance enthusiasts running modified fuel maps, and shops servicing Hemi platforms where phaser stability is a priority. Installation is straightforward on the phaser assembly itself, making it a bolt-on solution for anyone seeking to control variable valve timing characteristics without requiring full engine disassembly. The compact kit format (2.85 x 2 x 4.05 inches, 0.42 lbs) ensures easy handling and storage during engine work.