H16005-1801

Brand: Changan

Model: SC35

product name：0.50 PISTON

Part Number: H16005-1801

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Product Details

Changan SC35 0.50 PISTON H16005-1801 Product Introduction

1. Basic Info

Model: H16005-1801 (OE Code: H16005-1801)

Product Type: Piston, designed for 0.50 specification

Compatible Vehicles: Tailor-made for Changan SC35; also fits some Changan Eado series models (verify via VIN/engine model for precision)

Material: Aerospace-grade high-strength aluminum alloy (added silicon, copper for optimization), with tensile strength ≥320MPa, hardness ≥100HB

Physical Specs: Net weight 1.36kg, size 18×18×7cm, dimensional tolerance ±0.01mm

Quality & Warranty: Made in China, meets national auto parts standards & ISO 9001; 12-month/30,000km warranty (free replacement for non-human damage)

Packaging: Neutral damage-proof (individual foam wrap + reinforced carton); custom branding available on request

2. Core Functions

As a key engine moving part, H16005-1801 endures up to 1500℃ instantaneous high temperature & 10MPa burst pressure, transferring force to connecting rod via piston pin to drive crankshaft rotation.

Piston top forms a sealed combustion chamber (optimized by fluid dynamics) with cylinder head/wall, promoting full fuel atomization & combustion.

Cooperates with piston rings for cylinder sealing (prevents gas leakage/oil seepage) and scrapes excess oil back to oil pan, reducing oil consumption.

Aluminum alloy’s high thermal conductivity (110W/(m·K)) dissipates combustion heat via cooling system, avoiding piston deformation from overheating.

3. Key Advantages

Precise Adaptability: 1:1 replication of original piston dimensions, matching Changan SC35 engine’s mounting holes/positioning pins; no modifications needed for direct installation.

Durable Material: Lightweight (30% lighter than cast iron pistons), resistant to high temperature, corrosion, wear & deformation; long service life.

Precision Manufacturing: CNC 5-axis machining (Ra ≤0.8μm for key surfaces); bionic elliptical piston skirt (micro-arc oxidation) reduces friction; rolled pin hole ensures 0.005-0.012mm fit clearance (no abnormal noise).

Performance Optimization: Concave combustion chamber (fits 10.5:1 compression ratio) boosts fuel efficiency & reduces emissions; hollow lightweight design improves power response; rounded edges avoid stress concentration.
Changan SC35 0.50 PISTON H16005-1801 Core Features
1. Perfect Fit, Super Easy to Install
Our H16005-1801 piston is made to match the original factory dimensions 1:1. The mounting holes and locating pins line up perfectly with the Changan SC35 engine—no gaps at all.
No modifications or adjustments needed. Just take out the old piston and pop this new one in directly. Even if you’re a beginner doing this for the first time, you can handle it easily.
It also works with some models in the Changan Eado series. But to be safe, it’s better to double-check with your vehicle’s VIN or engine model first, just to make sure our H16005-1801 fits perfectly.
2. Great, Lightweight Material, Super Durable
It’s made of aerospace-grade high-strength aluminum alloy, with added elements like silicon and copper to optimize the formula. Its tensile strength can reach over 320MPa, and the hardness is more than enough (≥100HB)—the structure is really solid.
It’s 30% lighter than ordinary cast iron pistons. When the engine moves back and forth, the inertia is smaller, so the power output is smoother too—you’ll even feel the difference when driving.
It’s also amazing at withstanding high temperatures and corrosion. It can handle instantaneous high temperatures of up to 1500℃, and it won’t be damaged by fuel combustion products or oil additives in the engine. It doesn’t wear out or deform easily, so it’ll last a long time.
3. Ultra-Precise Making, Super Stable to Use
It’s processed with a CNC 5-axis machining machine. Key parts like the piston skirt and pin hole are really smooth (surface roughness Ra ≤ 0.8μm), so they fit tightly with other engine parts.
The piston skirt has a bionic elliptical design and is coated with micro-arc oxidation. When it rubs against the cylinder wall, the friction is really low—it’s wear-resistant, and the engine runs smoothly and quietly.
The inside of the pin hole is also roll-strengthened, and the gap is controlled super precisely (0.005-0.012mm). There’s no strange noise when driving, so it’s really comfortable to use.
4. Great Performance Optimization, Saves Fuel and Has Power
The top of the piston has a concave combustion chamber design, which matches the engine’s 10.5:1 compression ratio perfectly. Fuel can atomize and burn fully—it saves fuel, reduces exhaust emissions, and is also environmentally friendly.
The inside has a hollow, lightweight design. On the premise of ensuring sturdiness, we’ve kept the weight as low as possible. When you step on the accelerator, the power comes really fast—super responsive.


Top performance: Concave chamber fits 10.5:1 compression (saves fuel, less emissions). Hollow design boosts power response. Rounded edges avoid damage and help fuel burn better—more engine power.
Super precise: CNC 5-axis machining keeps parts smooth. Skirt’s elliptical design + micro-arc oxidation cuts friction (quiet, smooth engine). Pin hole has tight gap (0.005-0.012mm)—no weird noises.
Great material: Aerospace-grade aluminum (with silicon, copper) is 30% lighter than cast iron, super strong (tensile ≥320MPa, hardness ≥100HB). Handles 1500℃ heat, resists corrosion—won’t wear/deform, lasts long.
Fits & installs easy: Matches original dimensions 1:1, lines up perfect with Changan SC35 (and some Eado models). No tweaks needed—even newbies can swap it fast (just check VIN/engine model to be sure).
The edges are all polished into rounded corners. It won’t damage the piston due to stress concentration, and it also reduces air flow resistance in the combustion chamber. This makes fuel burn more thoroughly, so the engine has more power.
Friend, choosing us isn’t just about picking auto parts—it’s choosing real peace of mind and top-tier quality! We’ve got over a decade of deep industry experience under our belts (the kind that lets us craft parts like the H16005-1801 piston just right), we lean on our international partnerships to boost our strengths, and we use honest chat as our bridge to get you the best parts and service possible. Plus, we carry a full range of auto parts for all major brands—not just specialized pieces like the Changan-fit H16005-1801!
When you go with us, friend, you’re not just buying a single product—you’re teaming up with a pro, reliable partner that can cover all your auto parts needs. We’re here to be your go-to companion for everything from specific pistons to full component sets, so we can start a worry-free, high-quality car life together. Don’t hold off any longer—choose us, and let your ride get the care it deserves from top-notch parts, no matter the brand!