Description
Product Overview
The Caltric Engine Timing Jackshaft (Part Number 103-3249) is engineered from high‑grade cast iron to deliver exceptional strength and wear resistance. Measuring 171.8 mm in length and 200.8 mm in outer diameter, it fits seamlessly into the timing chain assembly of many automotive engines. The unit weighs 14 lb, reflecting its solid build, and conforms to OEM specifications for a direct replacement without modifications. Its design focuses on maintaining precise timing chain tension, reducing vibration, and extending the life of related components.
Usage
This jackshaft is suited for a range of repair scenarios, from routine maintenance to major engine overhauls. Professional mechanics will appreciate its compatibility with standard service tools, while DIY enthusiasts can benefit from the straightforward installation process. Ideal for use in passenger cars, light trucks, and performance vehicles that require a reliable timing chain support. 
Why Choose Us
Caltric combines decades of automotive expertise with rigorous quality control. Each jackshaft undergoes heat treatment and dimensional testing to ensure consistent performance across batches. Our commitment to precision machining minimizes tolerances, delivering a part that matches OEM standards. Backed by a 5‑star customer rating, this product reflects both durability and user satisfaction, making it a trustworthy choice for critical engine components.
Key Features
- High‑strength cast iron construction for superior durability
- Exact OEM dimensions for a hassle‑free fit
- Optimized weight of 14 lb to balance strength and handling
- Easy installation with standard automotive tools
- Verified performance with a 5‑star customer review rating
FAQ
What vehicles are compatible with this jackshaft?
The jackshaft fits a wide range of models that use the standard 103‑3249 timing part. Consult your vehicle’s service manual or compare the posted dimensions to ensure compatibility.
Is any special tooling required for installation?
No specialized equipment is needed. Standard socket sets and a torque wrench are sufficient for a secure fit.
How does cast iron improve performance?
Cast iron provides excellent wear resistance and maintains dimensional stability under high temperatures, ensuring consistent timing chain tension.
Can I use this part for performance upgrades?
Yes, the robust construction supports higher engine loads, making it suitable for both stock and mildly tuned applications.
What is the warranty on this product?
Caltric offers a one‑year limited warranty covering manufacturing defects, giving you confidence in the part’s longevity.




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