2881000

Brand: Dongfeng

Model: H30

Part Number: 2881000

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Product Details

Dongfeng H30 Expansion Water Tank (Part No.: 2881000)

Let me put it simply—this thing is like your Dongfeng H30’s “coolant storage and pressure boss.” It’s not just some random plastic tank, you know? It’s a super important part of the engine’s cooling system. Its main jobs? Hold onto extra coolant, keep the system’s pressure in check, and make sure your engine never runs out of fluid to soak up and get rid of heat—because if it does, overheating is basically guaranteed.

It’s made of tough, heat-resistant plastic—like polypropylene. This stuff can handle coolant temps up to 120°C or more, and it doesn’t get ruined by the chemicals in coolant (antifreeze, for example). There’s also a clear part or marked lines on the tank, so you can easily check how much coolant is left. Plus, it has a pressure cap to keep the system’s pressure steady, and hoses that hook up to the engine’s radiator and cooling tubes. You’ll find it in the H30’s engine bay, usually right near the radiator. Here’s how it works: when the engine heats up, coolant expands—this tank handles that extra. When the engine cools down, coolant shrinks back, and the tank feeds it back into the system. Simple, right?

Now, imagine if you didn’t have this tank. When the engine gets hot, coolant would expand so much it overflows from the radiator and leaks out. That means low coolant levels, and before you know it, your engine’s overheating. Also, this tank acts like a “backup reservoir”—when the engine cools, it pulls coolant back from the tank to keep the radiator full. If the tank is missing or broken? You’ll be dealing with constant overheating, coolant leaks, and maybe even permanent engine damage from too much heat. Not fun.

Heads up—this expansion tank is only for the Dongfeng H30. Always check your car’s VIN to make sure it fits! Dongfeng designed it specifically for the H30’s cooling system: it holds just the right amount of extra coolant (not too little, not too much—no wasting space), the hoses line up perfectly with the H30’s radiator and engine ports (so no leaks or weird misalignments), and the pressure cap is set to the system’s safe range—10 to 15 psi. Why does that matter? Because higher pressure makes coolant boil at a higher temp (like 120°C instead of 100°C), so it can soak up more heat without boiling over.

Don’t even think about grabbing a generic tank or one made for another car. It’ll cause nothing but trouble. Too small, and coolant overflows; too big, and it’s just wasted space. The hoses won’t fit right, so coolant leaks. And if the pressure cap isn’t calibrated? Coolant boils at a lower temp, and your engine overheats fast. Trust me—stick to the one made for the H30.

1. Core Jobs: Store Coolant, Regulate Pressure, Stop Overheating

Like I said, this tank is the “backbone” of the H30’s cooling system. It has three non-negotiable jobs—let me break them down for you:

Coolant storage: When the engine heats up, coolant expands. This tank catches that extra coolant so it doesn’t overflow from the radiator and leak. Then, when the engine cools down, it sends that coolant back into the system to keep the radiator full. No more empty spots or wasted fluid.

Pressure regulation: The pressure cap on top isn’t just for show. It keeps the cooling system at the perfect pressure—10 to 15 psi. This makes coolant boil at a higher temperature (from 100°C up to around 120°C). That means the coolant can absorb way more heat without boiling, which is a big deal for stopping engine overheating.

Easy coolant checks: The tank has a clear section or “MIN/MAX” lines on it. So you can just glance at it to see how much coolant is left—no need to mess with the hot radiator cap (which is a big safety win, by the way). If it’s below the “MIN” line, you can top it up before things get bad.

This 2881000 expansion water tank only fits Dongfeng H30—wrong fit means cooling system failure:

Fits These: All Dongfeng H30 variants (matches cooling system capacity, hose sizes, and pressure specs—confirm via VIN).

Won’t Fit These:

Other Dongfeng models: Like FMC SX5, AX3, or Dignity ix5—different cooling system designs, tank capacities, or hose connections (tank won’t work or causes leaks).

Non-Dongfeng vehicles: Even if the shape looks similar, their cooling system pressure ranges and port sizes differ (causes overheating or coolant loss).

Dongfeng H30 with modified cooling systems: Aftermarket radiators or hoses change the system’s needs—original tank can’t store enough coolant (leads to overflow).

 Installation & Upkeep (DIY-Friendly—Basic Tools Needed)

Installation: 30–45 Minutes (Requires Screwdriver/Wrench)

Replacing this expansion water tank is straightforward—here’s how to do it:

Prep: Let the H30’s engine cool completely (hot coolant can cause burns). Open the pressure cap on the old tank to release system pressure. Disconnect the negative battery terminal (optional, for safety).

Remove old tank: Disconnect the inlet/outlet hoses from the old tank (use pliers to loosen hose clamps). Remove the mounting bolts that hold the tank to the engine bay (use a screwdriver or wrench). Pull the old tank out carefully (avoid spilling remaining coolant).

Install new tank: Position 2881000 in the engine bay, align it with the mounting brackets, and tighten the bolts (don’t over-tighten—you might crack the plastic). Reconnect the hoses (ensure clamps are tight to prevent leaks).

Refill and test: Add Dongfeng-recommended coolant to the new tank (fill to the “MAX” line). Replace the pressure cap. Start the engine and let it run for 10–15 minutes (check for leaks around the tank and hoses). Turn off the engine and top up coolant if needed (levels drop as air bleeds out).

Maintenance: Simple Checks to Avoid Cooling Issues

Check coolant levels weekly: Look at the tank’s level indicators—top up to “MAX” if below “MIN” (use the correct coolant type for H30, never just water).

Inspect for leaks monthly: Check the tank body, hoses, and connections for cracks or wet spots (coolant leaks are usually green, pink, or yellow—clean up spills and replace damaged parts).

Replace pressure cap every 2 years: Old caps lose their sealing ability (causes pressure loss and coolant evaporation)—use a cap calibrated to 10–15 psi.

Flush the system yearly: Drain and replace coolant according to Dongfeng’s schedule (prevents corrosion that damages the tank and cooling system).

Summary: Dongfeng H30 Expansion Water Tank (Part No.: 2881000)

As a critical component of Dongfeng H30’s cooling system, the expansion water tank acts as the “engine coolant storage and pressure manager.” It is not just a simple plastic tank but a durable, heat-resistant assembly that ensures the engine avoids overheating by storing excess coolant, regulating system pressure, and maintaining sufficient fluid for heat absorption and dissipation.

Constructed from high-grade plastic (e.g., polypropylene), it can withstand coolant temperatures up to 120°C+ and resist corrosion from coolant chemicals. It features a clear or marked body for easy coolant level checks, a pressure cap to maintain system pressure, and inlet/outlet hoses that connect to the engine’s radiator and cooling passages. Mounted near the radiator in the H30’s engine bay, it accommodates the natural expansion and contraction of coolant as the engine heats up and cools down. Without it, coolant would overflow when heated, leading to low levels, frequent overheating, leaks, or even engine damage; when the engine cools, it also acts as a reservoir to refill the radiator.

Fitment

This tank is exclusive to Dongfeng H30. It fits all H30 variants, with capacity, hose connections, and pressure cap (calibrated to 10–15 psi) tailored to the H30’s cooling system specs—always confirm via the vehicle’s VIN. It will not fit other Dongfeng models (e.g., FMC SX5, AX3), non-Dongfeng vehicles (mismatched pressure ranges/port sizes), or H30s with modified cooling systems (aftermarket parts alter fluid needs).

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