Haima S7 Piston – Part No.: SA00-11-102M1
Let’s make it simple—this isn’t just some “metal cylinder” in your Haima S7’s engine. It’s the core moving component that turns fuel energy into the power that moves the car: a precision-made part crafted from high-strength aluminum alloy—lightweight and able to stand high heat. Fitted inside the engine’s cylinder, it connects to the crankshaft via a connecting rod, sliding up and down nonstop as the engine runs. Think of it as the “engine’s power pusher”—without it, the fuel burned in the cylinders couldn’t turn into the spinning force that gets your S7 going.
This piston is only made for the Haima S7—always check your car’s VIN to make sure it fits! It’s customized for the S7’s engine: its diameter and height match the S7’s cylinder perfectly (so it seals tight and moves smoothly), the shape of its top lines up with the engine’s combustion chamber design (making fuel burn more efficiently), and its weight balances with the crankshaft (cutting down on vibrations). Grab a generic piston instead? You’ll be in trouble: wrong size (causes gas leaks or jams), unbalanced weight (makes the engine shake), or flimsy material (melts when it gets too hot).
As the “driving force behind the engine’s movement,” it does three crucial things to keep your S7 running:
Turn fuel energy into power: When fuel burns in the cylinder, it creates high-pressure gas that shoves the piston down. This downward movement drives the connecting rod, which then spins the crankshaft—and that’s what makes your S7’s wheels turn.
Seal the combustion chamber: The piston (along with its piston rings) makes a tight seal against the cylinder wall. This keeps high-pressure gas from leaking out of the chamber (which would waste power) and stops engine oil from getting into the combustion area (which causes smoke or carbon buildup).
Get rid of heat: The piston soaks up heat from the burning fuel and passes it to the cylinder wall (then on to the engine coolant). This stops the piston from overheating and melting—super important for keeping the engine safe long-term.
![SA00-11-102M1]( "SA00-11-102M1")
This SA00-11-102M1 piston only fits Haima S7—wrong fit = catastrophic engine failure:
Swapping this piston is not a DIY job—mistakes destroy the engine:
Prep: Techs disassemble the engine (remove cylinder head, crankshaft, and connecting rods), then extract the old piston from the cylinder.
Inspect & clean: They check the cylinder bore for wear/scratches (resurface if needed), clean all parts, and verify piston-ring gaps.
Install new piston: They fit piston rings into the grooves (with correct spacing), slide SA00-11-102M1 into the cylinder (using anti-seize lubricant), attach it to the connecting rod, and torque all fasteners to Haima’s exact specs.
Calibrate & test: They check piston clearance (too tight = seizure; too loose = leaks), reassemble the engine, add fresh oil, and test drive to ensure smooth power delivery and no abnormal noises.
Use quality engine oil: Always use Haima-recommended oil (low-quality oil causes piston-ring wear and carbon buildup).
Change oil regularly: Replace oil every 5,000–7,000km (old oil leaves deposits on the piston head, reducing efficiency).
Check for carbon buildup: Every 30,000km, have techs inspect the piston head—excess carbon (from incomplete combustion) causes hot spots or pre-ignition (damages the piston).
Watch for warning signs: Knocking noises (piston slap), loss of power, or blue/black smoke (oil/gas leaks) mean piston issues—stop driving and get it checked immediately.
![SA00-11-102M1]( "SA00-11-102M1")
This is an exclusive piston for Haima S7 (confirm VIN for fitment). Made of high-strength, heat-resistant, and lightweight aluminum alloy, it’s installed in the engine cylinder bore, connecting to the crankshaft via a connecting rod.
Its core functions: Convert fuel combustion energy into mechanical power to drive the vehicle; seal the combustion chamber (with piston rings) to prevent gas leakage and oil intrusion; absorb and transfer heat to avoid overheating and melting.
It only fits Haima S7— incompatible with other Haima models, non-Haima vehicles, or S7 with modified engines. Installation requires certified technicians. Maintenance involves using recommended engine oil, regular oil changes (5,000–7,000km), carbon buildup checks, and addressing knocking/loss of power warnings. Original parts are critical—aftermarket ones risk size mismatch, poor balance, or weak material, leading to engine failure
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![SA00-11-102M1]( "SA00-11-102M1")
