fits make: Jeep. year: 1981–1987.
( Manufacturer Part Number: 3235477 ), ( Part Type: Crankshaft Engine ), ( Country/region Of Manufacture: United States ), ( Surface Finish: Grind And Polish To Size 10-10 )
The 1981-1987 Jeep 4.2L 258 Inline-6 Crankshaft (Part Number: 3235477) is an essential component of the iconic Jeep engine. This crankshaft is a crucial part of the engine's powertrain, responsible for converting linear motion into rotational force.
The 4.2L 258 crankshaft is a forged steel component, which ensures its durability and strength. It is precision-machined to tight tolerances, ensuring a smooth and efficient operation of the engine. The crankshaft features a cast-iron main bearing cap and a forged connecting rod, contributing to its robustness and resistance to wear and tear.
The crankshaft has six counterweights, strategically positioned to minimize vibrations and ensure a quiet and smooth engine operation. The crankshaft journal bearings are designed to reduce friction and provide a long-lasting performance. The crankshaft also features a timing gear and a timing gear key for proper engine timing.
This crankshaft is a direct replacement for the original part, ensuring a perfect fit and easy installation. It is designed to meet or exceed the original equipment manufacturer (OEM) specifications, ensuring a reliable and efficient performance of your 1981-1987 Jeep 4.2L 258 engine.
In conclusion, the 1981-1987 Jeep 4.2L 258 Inline-6 Crankshaft (Part Number: 3235477) is a high-quality and durable component that is essential for the proper functioning of your Jeep engine. Its precision-machined design, robust construction, and easy installation make it an ideal choice for any Jeep enthusiast or professional mechanic.
Pros of buying a 1981-1987 Jeep with a 4.2L 258 crankshaft engine (part number 3235477):1. Reliability: The 4.2L inline-six engine is known for its durability and longevity. It has a simple design, which means fewer moving parts and less chance of failure.
2. Power: The 4.2L engine delivers enough power to handle off-road adventures and daily driving. It produces around 145 horsepower, which is enough for most users.
3. Availability of Parts: As a popular engine, parts for the 4.2L are readily available. This means you can easily find replacement parts if needed.
4. Affordability: Compared to some modern engines, the 4.2L is relatively inexpensive to maintain and repair.
Cons of buying a 1981-1987 Jeep with a 4.2L 258 crankshaft engine (part number 3235477):1. Fuel Efficiency: The 4.2L engine is not very fuel-efficient. It consumes more gas than modern, smaller engines.
2. Emissions: The engine does not meet modern emissions standards, which can be a problem if you live in an area with strict emissions regulations.
3. Engine Noise: The 4.2L engine can be noisy, especially at higher RPMs. This might be a problem for those who value a quiet ride.
4. Performance: While the 4.2L engine is reliable and powerful, it's not particularly fast or sporty. If you're looking for high performance, you might want to consider a different engine.
Conclusion: The 1981-1987 Jeep with a 4.2L 258 crankshaft engine (part number 3235477) is a good choice for those who prioritize reliability and off-road capability over fuel efficiency and performance. Its durability and availability of parts make it a cost-effective option for many users. However, its fuel efficiency and emissions issues might be a concern for some, especially if you live in an area with strict regulations.
Recommendation: If you're in the market for a reliable, off-road capable vehicle, the 1981-1987 Jeep with a 4.2L 258 crankshaft engine (part number 3235477) is a solid choice. Just be prepared for its fuel efficiency and emissions issues, and make sure to maintain it properly to ensure its longevity.
This is from an 87 block. Unman, but was installed in Jeep 4. 2 engine from titan.