The Mazda CX-7 Timing Chain Tensioner ensures that the timing chain is held at a specific stress level, allowing the crankshaft and the camshaft to remain in complete step and provide the engine with a clean power delivery throughout the entire power range. Constructed of hardened internal parts and having a spring-loaded, oil-assisted plunger, this small Mazda guardian offers proven durability that drivers are confident in on their day-to-day commute and long highway journeys. Unbroken tension eliminates chain slack, which may lead to a jump, misfires, or disastrous contact between the valves, and the acceleration remains sharp and the crossover fuel economy is as good as that in the factory. The unit is compatible with all CX-7 powertrains, including the initial turbocharged 2.3 liter gasoline engine and the subsequent 2.5 liter and 2.2 liter diesel engines, and provides a simple one-part solution to any owner irrespective of the trim or production year. Due to the same layout across the model line, it becomes easy and economical to stock a replacement or perform scheduled service. The unique feature is the constant self-adjustment; the Timing Chain Tensioner also automatically compensates for wear and temperature loss each time the motor is warmed or cooled down, which translates to dependable timing without having to recalibrate. The drivers also receive peace of mind because correct valve timing benefits both in reducing emissions and in maintaining the onboard safety systems such as traction control at their optimum performance. Many crossover competitors are using belts that require regular replacements, but this Mazda component is expected to withstand the lifetime of the engine, which also builds the reputation of the brand, which is known to be long-lasting. The Timing Chain Tensioner is an important part of achieving the vibrant performance and confident safety profile characteristic of Mazda engineering through silent management of internal harmony in the CX-7.
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