Z300-MR984261-A01

Brand: Zotye

Model: Z300

Product Name：Exhaust Valve

Part Number: Z300-MR984261-A01

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Product Details

Zotye Z300 Exhaust Valve (Part No.: Z300-MR984261-A01)

Let me keep it simple—this thing is like your Zotye Z300’s “engine exhaust doorman.” It’s not just a tiny metal valve, you know? It’s a super important engine part that controls how burned exhaust gases flow from the combustion chamber to the exhaust system. It makes sure the engine runs efficiently and stops hot gases from flowing back into the engine. It’s built to handle high heat, machined precisely, and designed to work perfectly with the Z300’s engine cylinder head and valve train—tough, seals tight, and responds well.

Let me break down what’s in it. First, there’s a heat-resistant alloy stem—usually made of chrome-nickel steel, and it can handle temperatures up to 800–1000°C. Then there’s a tapered valve head—it’s cone-shaped, and it seals tightly against the cylinder head’s valve seat. The valve face (the edge that touches the seat) is coated with tough stuff like stellite to stop hot exhaust from wearing it down. It’s mounted in the Z300’s engine cylinder head—one for each combustion chamber. The camshaft controls it via a rocker arm or lifter: when the engine’s exhaust stroke starts, the camshaft pushes the valve open so burned gases can escape; when the stroke ends, a valve spring pulls it shut. This seals the combustion chamber, keeping fresh air-fuel mixture inside for the next cycle.

Now, imagine without this exhaust valve. The Z300’s engine couldn’t get rid of exhaust gases: it would burn fuel less efficiently (so you’d lose power and use more gas), hot gases would flow back into the chamber (damaging pistons or spark plugs), and the engine might overheat from trapped heat. Zotye made this just for the Z300—right size (stem diameter, head width) and seals perfectly, matching the car’s engine displacement (usually 1.5L or 1.6L) and compression ratio. A generic valve? It either leaks (losing pressure) or breaks under high heat (bending or cracking)—and then the engine won’t work.

1. Core Jobs: Control Exhaust, Seal Chamber, Protect Engine

This is a key part of the Z300’s engine valve train, and it has three jobs it can’t skip—let me spell ’em out:

Control exhaust flow: It opens and closes at exactly the right time (syncs with the engine’s strokes) to get rid of burned gases fast. This stops gases from piling up in the combustion chamber, which would mean less air-fuel mixture can get in for the next cycle.

Seal the combustion chamber: When it’s closed, it presses tight against the valve seat to make an airtight seal. This keeps the right pressure in the chamber for efficient fuel burning, and stops exhaust gases from leaking back in.

Handle high heat: It endures super hot exhaust gases (up to 1000°C) without bending or melting. This protects other engine parts (like pistons and gaskets) from heat damage and keeps the engine running consistently.

This exhaust valve is exclusive to Zotye Z300—wrong fit means engine failure:

Fits: All Zotye Z300 variants (matches the engine’s cylinder head valve seat size, stem diameter, and valve train compatibility; confirm via VIN—note differences between 1.5L and 1.6L engine versions if applicable).

Won’t Fit:

Other Zotye models: Like Z500, T600, or Z700—different engine displacements, valve sizes, or valve train designs (valve won’t fit the cylinder head or align with the camshaft).

Non-Zotye vehicles: Even if the shape looks similar, their engine combustion chamber sizes and valve timing differ (no functional fit—causes leaks or timing issues).

Zotye Z300’s Intake Valves: Intake valves are larger (to let in more air-fuel mixture) and have different heat resistance needs—this part is for exhaust only (intake needs a different part number).

 Installation & Maintenance (Professional Recommended)

Installation: 2–3 Hours (Requires Engine Tear-Down Tools)

Replacing an exhaust valve requires disassembling part of the engine—best done by certified technicians:

Prep: Drain the Z300’s engine oil and coolant. Remove the cylinder head cover, camshaft, and valve train components (rocker arms, lifters) to access the valves.

Remove Old Valve: Use a valve spring compressor to compress the valve spring, then remove the keepers (small clips that hold the spring in place). Pull the old valve out of the cylinder head and inspect the valve seat for wear (resurface if needed).

Install New Valve: Apply a thin layer of valve lubricant to the new Z300-MR984261-A01’s stem, then slide it into the valve guide. Reinstall the valve spring, keepers, and valve train components—ensure the valve opens and closes smoothly.

Post-Install Testing: Reassemble the engine, add new oil and coolant, then start the engine. Check for exhaust leaks (listen for ticking noises) and monitor engine performance (no power loss or rough idling).

Brief Summary: Zotye Z300 Exhaust Valve (Part No.: Z300-MR984261-A01)

A critical Zotye Z300 engine part, this exhaust valve acts as an "exhaust gatekeeper"—controlling burned gas flow from combustion chambers to the exhaust system, ensuring efficient operation and preventing hot gas backflow. It’s heat-resistant (800–1000°C) and precision-machined for the Z300’s cylinder head/valve train.

Key features: chrome-nickel steel stem (wear/high-temp resistant), tapered valve head (tight sealing, smooth flow), and stellite-coated face (anti-erosion). Without it, engine efficiency drops, parts get damaged, and overheating risks rise; generic valves leak or fail.

Fits all Z300 variants (confirm VIN for 1.5L/1.6L); won’t fit other Zotye models, non-Zotye cars, or Z300 intake valves.

Installation (2–3 hours, pro-recommended) needs engine tools. Maintain via quality oil, overheating prevention, tune-ups, and clean fuel. Original parts avoid aftermarket issues (poor heat resistance, leaks, quick wear).

Z300-MR984261-A01