Description
Product Overview
The Eagle 4.5122G crankshaft is a precision‑engineered component designed for high‑performance automotive applications. Constructed from premium grade steel, it offers exceptional torsional strength and resistance to fatigue, ensuring consistent power delivery across demanding driving conditions. With a manufacturer part number 444242507100 and a model designation 4.5122G, this crankshaft aligns with OEM specifications, providing a direct fit for a variety of performance engines. Its dimensions—24.79″ L x 11.02″ W x 9.24″ H—and a package weight of 75 lb reflect a robust build that balances strength with manageable handling for installers.
Usage
Ideal for both professional garages and home workshops, the Eagle crankshaft serves as a reliable replacement or upgrade for performance‑oriented engines. It excels in high‑rpm scenarios, track days, and daily driving where engine durability is paramount. Mechanics appreciate its straightforward installation process, while enthusiasts value the confidence of a component that meets stringent automotive standards. 
Why Choose Us
Eagle Specialty Products has a reputation for delivering automotive parts that combine rigorous engineering with quality manufacturing. This crankshaft undergoes comprehensive testing for balance, hardness, and dimensional accuracy, guaranteeing a product that performs reliably under stress. Our commitment to precise tolerances reduces the risk of premature wear, and the inclusion of detailed installation instructions streamlines the replacement process. Additionally, the product’s ranking in Amazon’s automotive categories reflects its acceptance among a broad user base.
Key Features
- High‑strength steel construction for superior durability
- OEM‑compatible dimensions ensure a perfect fit
- Engineered for high‑rpm performance and torque transfer
- Rigorous quality testing for balance and hardness
- Compact packaging (24.79″ x 11.02″ x 9.24″) for easy handling
FAQ
What engines are compatible with the 4.5122G crankshaft?
The 4.5122G model is designed to replace OEM crankshafts in a range of performance engines that specify the Eagle part number 444242507100. Consult your vehicle’s service manual or contact Eagle support for exact compatibility.
Is any special tooling required for installation?
Standard crankshaft installation tools are sufficient. We recommend using a torque wrench and following the included installation guide to ensure proper bearing preload and alignment.
How does the Eagle crankshaft compare to aftermarket alternatives?
Eagle’s crankshaft offers factory‑grade material quality and precise tolerances, often surpassing generic aftermarket options that may use lower‑grade alloys or have looser quality control.
Can this crankshaft be used in a rebuilt engine?
Yes, it is an excellent choice for engine rebuilds, providing the strength and reliability needed for restored or upgraded powertrains.
What is the warranty coverage?
Eagle provides a limited warranty covering material defects for a period of one year from the date of purchase, ensuring peace of mind for professional and hobbyist users alike.






Scat Crankshafts Duty Engine Crankshaft Model 9-350-3750-5700 Steel
EAGLE SPCLTY Eagle Specialty Products 103503750 3.75" Cast Steel Crankshaft for Small Block Chevy
Scat Crankshafts 3.400" Stroke Performance Engine Crankshaft Model
Eagle 104564250 4.25" Cast Steel Crankshaft for Big Block Chevy
Callies Compstar 4" Stroke 4340 Forged Crankshaft for Block Chevy
Spicer D3A Auto Part Front Forks
Scat Crankshaft 4-350-3875-6000 Heavy Duty 55lb Steel Eng Crankshaft
EAGLE SPCLTY Eagle Specialty Products 103503480 3.48" Cast Steel Crankshaft for Small Block Chevy
Engine Crankshaft Eagle Forged Steel Performance
Eagle 4.7112R Heavy Duty Steel Engine Crankshaft 103404000
Transparent Language Business Training Software
Eagle Specialty Products 4" Stroke 351W Steel Crankshaft for Ford
ICONSPORTSS Front Forks for 110cc 125cc 150cc Dirt Bikes
Eagle Specialty Products 10350375057I 3.75" Cast Steel Crankshaft for Small Block Chevy
TeachUcomp Business Training Software 42hr Video
Reviews
There are no reviews yet.