Protorque HT817 Hydraulic Lifter - Chevrolet
Premium Engine Performance
The Protorque HT817 hydraulic lifter is precision-manufactured to maintain precise valve timing under all operating conditions. Built for maximum durability and reliability on demanding roads, this aftermarket engine component delivers professional-grade performance.
Advanced Engineering
- Precision Manufacturing: Engineered with exacting tolerances to meet or exceed OEM specifications
- Enhanced Design: Features lengthened plunger design for reduced wear and precise oil control through 6,000 RPM
- Constant Orifice Metering: Patented valve system provides precise oil metering to the overhead valvetrain
- Lightweight Construction: Flat disc check valves allow for higher speeds and more uniform operation
Technical Specifications
- Lifter Type: Hydraulic flat tappet
- Outside Diameter: 0.842 inches (21.4mm)
- Fitment: Direct replacement, vehicle-specific design
- Construction: Leading-edge materials with state-of-the-art manufacturing
- Quality: ISO & QS certified manufacturing standards
Professional Quality
Protorque Engine Parts represents one of the most comprehensive ranges of specialized engine components in the aftermarket. Each lifter is sourced from leading specialist OEM manufacturers with extensive experience in producing premium engine components. Designed for direct fit and to perform as well as the original part, if not better.
Reliability You Can Trust
Backed by strong industry reputation and proven performance, Protorque parts are built for the wide range of passenger and performance vehicles. The advanced design provides increased bearing surfaces, resulting in longer lifter life and consistent performance under demanding conditions.