Description
Product Overview
The Caltric Rocker Arm Pivot is engineered for durability and precision. Featuring a 4.21″ (107mm) pivot shaft length, a 0.39″ (10mm) inner diameter and a 0.62″ (16mm) outer diameter, the component is forged from high‑grade steel to resist wear and maintain alignment under high engine loads. The part number ZP107/13 corresponds to the original equipment specifications, ensuring a seamless replacement for a wide range of automotive applications.
Usage
Designed for both professional garages and home workshops, this pivot is ideal for rebuilding engine valve trains, restoring performance, or conducting routine maintenance. It fits engines that originally used a 4.21″ rocker arm pivot, making it a go‑to choice for hobbyists restoring classic cars or technicians servicing modern vehicles. 
Why Choose Us
Caltric’s reputation for quality automotive components backs this pivot. Each unit undergoes strict dimensional testing and heat‑treatment processes to guarantee consistency. Our parts are sourced directly from the manufacturer, eliminating middle‑man variability. Additionally, we provide a detailed fit guide and responsive customer support to assist with any installation questions.
Key Features
- Precision‑machined 4.21″ steel shaft for exact OEM fit
- High‑strength material resists bending and fatigue
- Standardized dimensions (0.39″ ID, 0.62″ OD) compatible with most engines
- Easy bolt‑on installation with no additional modifications
- Backed by Caltric’s quality assurance and warranty
FAQ
What engines are compatible with this pivot?
The 4.21″ length and specified diameters match many small‑to‑mid‑size gasoline engines, particularly those listed under Caltric part number ZP107/13. Always compare the existing pivot dimensions before purchase.
Is any special tool required for installation?
Standard hand tools such as a socket set and torque wrench are sufficient. Ensure the bolt is torqued to the manufacturer’s specification to avoid over‑tightening.
Can this part be used for performance upgrades?
Yes. The steel construction provides added rigidity, which can improve valve train stability at higher RPMs, making it suitable for mild performance builds.
What is the warranty period?
Caltric offers a one‑year limited warranty covering manufacturing defects. Contact our support team with your purchase details for assistance.
How do I verify the part matches my engine?
Measure the existing pivot shaft length, inner and outer diameters. Compare them to the specifications listed above. If in doubt, refer to your vehicle’s service manual or consult a qualified mechanic.
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