Front Brake Disc for NISSAN Sentra 4

This part number 40206ET00A refers to the brake disc rotor matched for the front wheels of Nissan Sylphy. It fits Classic Sylphy, the 13th-generation and 14th-generation 1.6L Sylphy models. If this part number matches your original front disc, you can install it directly without any modifications.

The disc adopts a ventilated structure with vertical air ducts sandwiched between the two friction surfaces, which dissipate heat outward while driving. Its diameter matches the measurement of the original factory caliper, with a thickness of 28 millimeters. The bolt holes and center bore on the flange are molded in a 1:1 ratio strictly according to Nissan's original factory specifications. We cut no corners on materials and exclusively use HT250 high-carbon gray cast iron. The pearlite content in its metallographic structure exceeds 95%, greatly boosting its strength and wear resistance.

Every single disc is sent to an automatic dynamic balancing machine before delivery. After weight removal treatment, the residual unbalance is controlled within 5g·cm. Even when driving at 120 km/h, the steering wheel remains stable without vibration or numbness in your hands.
Simply put, this is an OEM replacement disc, yet we hold ourselves to stricter standards in terms of material quality and machining precision.

The Front Brake Disc for NISSAN Sentra 4 (Part No. 40206ET00A) is compatible with a wide range of cars, as follows:

The Front Brake Disc for NISSAN Sentra 4 (Part No. 40206ET00A) corresponds to several different codes

Many of our customers export brake discs to Southeast Asia and coastal countries in Europe and America, and their biggest headache is rust formation on brake discs during sea transportation, as well as customer complaints about rust spots appearing shortly after vehicle installation. Our front brake disc model Sylphy 40206ET00A is produced with a fully automatic electrostatic high-temperature anti-corrosion coating production line, unlike the simple black paint brushing done by small workshops. This complete coating process boasts tangible technical advantages:

It adopts zinc-aluminum composite water-based high-temperature paint as raw material with a chromium-free eco-friendly formula that complies with the EU's new VOC emission regulations. Flaky stacked zinc-aluminum protective layers form inside the coating, achieving a cross-hatch adhesion rating of Class 0. The coating will not crack, peel or flake off under repeated thermal cycling during braking and impacts from gravel splashed by wheels.

Robots deliver 360° full-coverage spraying. 3D scanning maps the disc contour to design spraying paths, enabling even paint application on hard-to-reach areas including the inner sides of ventilation slots, edges of mounting holes and hub fitting steps. This eliminates uneven paint thickness and missed coating spots common with manual spraying.

Actual salt spray testing lasts 720 hours, far exceeding the industry's general standard of 240 hours. The non-friction areas of the disc will not suffer extensive rusting during long-term containerized sea shipment, driving on roads treated with snow-melting salt in northern winters, or exposure to high humidity in southern rainy seasons. It also prevents malfunctions where peeling rust layers jam guide pins.

The coating withstands temperatures up to 650°C. During emergency hard braking, the disc surface temperature spikes instantly, yet the coating will not melt or turn sticky to contaminate friction surfaces. The friction zone is pre-ground bare at the factory, with paint layers completely kept clear of the brake friction working surface. This balances rust prevention and reliable braking performance to meet dual requirements.

Compared with ordinary painted brake discs available on the market, our coating process cuts customer after-sales rust-related complaints by 90%. Full container shipments arrive rust-free upon opening at overseas ports, eliminating the need for extra anti-rust packaging and cutting additional logistics costs.

Anyone in this trade can instantly tell a workshop's capability at a glance. We oversee the entire production chain of our assembly lines in-house, from rough casting to precision machining, with no outsourced work. This is what underpins the consistent quality of the 40206ET00A.

We use coated sand molding for blanks. After pouring, castings go through annealing furnaces to relieve internal stress, eliminating hidden internal defects in the disc and delivering more uniform metallographic structures. On the precision machining side, we deploy high-precision CNC vertical lathes. A single clamping operation completes machining for both friction surfaces and mounting surfaces, restricting parallelism and end face runout to within 0.03 mm. With this tolerance, the brake pedal delivers crisp feedback after vehicle installation, free of jerky dragging brake sensation. Every single disc undergoes online dynamic balancing testing instead of random sampling; any part exceeding unbalance tolerance is corrected on the spot. Our inspection lab is equipped with coordinate measuring machines and roughness profilers to strictly control the positional tolerance of bolt holes and the Ra roughness value of mounting surfaces.

The workshop permanently operates under the IATF 16949 quality management system. We maintain abundant semi-finished product inventory for brake discs fitted to the Sylphy, ensuring exceptional consistency in hardness, chemical composition and air channel width across batches. Simply put, the 40206ET00A you receive matches the quality standard of parts manufactured on our OEM production line for Nissan, with even stricter specifications for end face runout and rust prevention.

Under regular civilian commuting conditions, the 40206ET00A brake rotors for Nissan Sylphy come with an 80,000-kilometer warranty. Free replacement units will be shipped if original manufacturing defects occur, including disc warpage, large-scale coating peeling, and cracking from casting blowholes.
Overseas bulk purchasers are assigned dedicated technical liaison specialists who provide real-time answers to inquiries about installation parameters and vehicle model compatibility, alongside reference OE numbers for matching brake pads.

Long-term cooperative buyers can receive free small sample shipments. Bulk orders may only be placed after samples pass quality inspection to reduce trial-and-error costs.

Q1: Which Nissan Sylphy models does this front brake disc part number 40206ET00A fit? Is there any performance gap compared with original factory fitted parts?
A: It is fully compatible with the 2007-2008 Nissan Sentra equipped with 1.8L QG18DE and 2.0L MR20DE engines, as well as the front axle of the classic older-generation Sylphy sold domestically. Its mounting hole positions, ventilation structure and thickness all replicate OE standards. Its material and machining precision match those of original factory parts, with no noticeable difference in braking performance. It is approximately 40% cheaper than genuine parts sold at 4S dealerships, making it ideal for bulk replacement at repair shops.

Q2: Some brake rotors start shaking after just 20,000 to 30,000 kilometers. How long can yours last without shaking?
A: Shaking is mostly caused by excessive runout or thermal deformation of the rotor body. Our rotors are factory-calibrated to a runout tolerance within 0.03mm. They are made of HT250 cast iron with trace alloy elements for improved heat resistance and undergo complete heat treatment. The air duct rib structure is also reinforced. For regular daily driving without aggressive track use, they should remain shake-free throughout the service life of the brake pads.

Q3: What is the standard installation torque for replacing front brake rotor part 40206ET00A on Nissan Sentra? What precautions should be taken during the break-in period?

A: The standard torque for wheel mounting bolts is 98 Nm. Remove rust from the wheel hub and apply high-temperature grease before installation. The first 300 kilometers after fitting new rotors constitute the break-in phase. Avoid repeated hard braking and long downhill drives under heavy load. After covering 300 kilometers, the friction surfaces will be fully mated, and brake noise plus minor shudder will fade away naturally.

Countries around the world are gradually rolling out the new Euro 7 emission regulations, which impose stricter environmental standards on brake disc dust and cast iron materials. Low-porosity HT250 and chromium-free zinc-aluminum anti-corrosion coatings have become standard for export products. Ordinary inferior gray cast iron and solvent-based painted discs will gradually lose market access in Europe and the United States. All our full-range 40206ET00A products have been pre-compliant with the new regulations, eliminating the risk of customs clearance delays.

Demand in the overseas auto parts market is shifting towards OE-equivalent replacement parts. Vehicle owners no longer blindly pursue expensive original equipment manufacturer parts. Wholesale orders for domestically manufactured brake discs with precise tolerances and complete anti-corrosion treatment are rising steadily. Brake rotors for Japanese family vehicles such as the Sylphy and Corolla are top-selling cross-border products.

Maintenance standards at end-user repair shops have been upgraded. Instead of merely replacing brake pads, simultaneous inspection of brake disc thickness and flatness has become a routine procedure. Orders shipped as matched sets of brake discs and pads command higher premium prices.

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