fits make: Buick, Oldsmobile, Pontiac.

( Brand: Gm ), ( Part Type: Crankshaft ), ( Warranty: 90 Day ), ( EAN: 4061265018076 )
The 12650 crankshaft is a crucial component of the engine system for various vehicles, including the Buick, Oldsmobile, and Pontiac models. This particular crankshaft is designed for engines with a displacement of 2.5 liters and is a direct replacement for the GM part number 18076.
The crankshaft is a heavy-duty component that is responsible for converting linear motion into rotational motion. It houses the pistons and connects to the engine's connecting rods, all working together to propel the vehicle forward. This specific crankshaft is precision machined and heat treated for optimal strength and durability.
The crankshaft features a 4-bolt main bearing cap design for improved engine stability and performance. It also includes a counterweight for balanced operation, ensuring smooth engine operation and reducing engine vibrations. The surface finish of the crankshaft is polished for a smooth, friction-reducing surface, which helps to reduce engine wear and improve fuel efficiency.
This crankshaft is engineered to meet the stringent quality standards of GM and is a direct replacement for the original part. It is designed to fit perfectly in your vehicle, ensuring a seamless installation process. The crankshaft comes complete with all necessary hardware for installation, including bolts, gaskets, and seals.
In conclusion, the 12650 crankshaft is a high-quality replacement part for your Buick, Oldsmobile, or Pontiac engine. Its precision machining, heat treatment, and polished surface finish make it a reliable and durable option for your vehicle. With its 4-bolt main bearing cap design and counterweight, this crankshaft provides improved engine stability and performance, ensuring a smooth and efficient driving experience.
Pros of buying a 12650 Buick Oldsmobile Pontiac 2.5 crankshaft (GM part number 406 18076):1. Affordability: Compared to a new crankshaft, this used part is significantly cheaper, making it an attractive option for budget-conscious car owners.
2. Availability: As a GM part, it should be relatively easy to find and purchase, either from a local auto parts store or an online retailer.
3. Compatibility: Since it is a GM part, it is designed to fit into Buick, Oldsmobile, and Pontiac vehicles, reducing the risk of compatibility issues.
Cons of buying a 12650 Buick Oldsmobile Pontiac 2.5 crankshaft (GM part number 406 18076):1. Quality concerns: Used parts, including crankshafts, may have been subjected to wear and tear, which could result in reduced performance or failure.
2. Age-related issues: The age of the part may be a concern, as older parts may be more prone to issues such as corrosion or wear.
3. Unknown history: Without knowing the history of the part, it is difficult to determine if it has been properly maintained or if it has been subjected to any damage.
Conclusion:Buying a used 12650 Buick Oldsmobile Pontiac 2.5 crankshaft (GM part number 406 18076) can be an affordable option for car owners in need of a replacement crankshaft. However, it is important to carefully consider the potential risks and drawbacks, such as quality concerns, age-related issues, and unknown history. If possible, it may be worth investing in a new or refurbished crankshaft to ensure reliability and performance. Ultimately, the decision to purchase a used crankshaft should be based on a thorough assessment of the vehicle's needs and budget.
5 Gm casting 406, 540. Crankshaft has a rector ring. Ready for installation rods.
New remanufactured crankshaft.