Exhaust Camshaft 28290131 for Chevrolet Blazer 4 Cyl 2.5L 2019-2021

Exhaust Camshaft for Chevrolet

This replacement exhaust camshaft controls the opening and closing of exhaust valves on 2.5L four-cylinder engines, cross-referencing to part number 28290131.

Overview

This exhaust camshaft is engineered to restore original engine timing and power delivery. A worn or damaged exhaust camshaft can lead to poor fuel economy and loss of horsepower, making this a critical replacement component. It is built to original equipment dimensions for dependable fitment and operation.

Built For Performance

• Constructed from high-grade steel alloy for maximum resistance to wear.
• Precision-ground lobes ensure accurate valve lift and timing.
• Heat-treated surfaces extend the overall service life of the lobes.
• Manufactured to meet stringent balance and runout specifications.

Fits These Machines

• for Chevrolet Blazer 2.5L (2019-2021)

On-The-Job Use

• Installed during cylinder head rebuilds or engine timing repairs.
• Used to replace worn cams showing lobe pitting or scarring.
• Applied to resolve engine misfires and loss of compression.

Specs At A Glance

Good To Know

Q: What causes exhaust camshaft wear? A: Insufficient lubrication, dirty engine oil, and high mileage are the primary causes of worn camshaft lobes.

Q: Should I replace the lifters or followers at the same time? A: Yes, installing new followers or lifters alongside a new camshaft prevents premature wear on the new lobes.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.