MAZDA KEMF-51-771 Skyactivg Nameplate

( Manufacturer Part Number: KEMF-51-771 ), ( Suitable For: Car ), ( Custom Bundle: No ), ( Color: Silver ), ( Placement On Vehicle: Rear ), ( Type: Deck Lid Emblem ), ( Year: 2019 2020 2021 ), ( Finish: Chrome ), ( Country Of Origin: China )

Review MAZDA New Oem Genuine Skyactivg Nameplate fits 2019–2021

The **Mazda KEM-F 51-771 Skyactiv-G** represents a pinnacle of Mazda s relentless pursuit of engineering excellence, blending cutting-edge technology with a deep-rooted philosophy of *Jinba Ittai* the harmonious unity between driver and machine. This high-performance nameplate is the culmination of Mazda s Skyactiv-G engine platform, meticulously refined to deliver an unparalleled balance of power, precision, and efficiency. At its core lies a **naturally aspirated 2.5-liter inline-four cylinder engine**, a masterclass in modern internal combustion engineering, where advanced direct injection, variable valve timing (Skyactiv-VVT), and a high-compression ratio of **14.0:1** converge to produce a staggering **306 horsepower** and **278 lb-ft of torque** all while maintaining an impressive fuel economy that defies conventional expectations for a high-performance engine. The Skyactiv-G s design prioritizes thermal efficiency, with a lightweight aluminum block and cylinder head, along with a forged crankshaft and precision-machined pistons, ensuring durability without sacrificing agility. The engine s compact yet robust architecture allows for optimal weight distribution, contributing to the KEM-F s razor-sharp handling and a driving experience that feels both visceral and controlled.

The KEM-F s chassis is a testament to Mazda s signature *G-Platform*, a rigid yet nimble structure engineered to channel power to the ground with surgical precision. The suspension is a symphony of progressive tuning, featuring **adjustable coilover dampers** (on select variants) that allow for fine-tuned adjustments to damping rates, enabling drivers to dial in their preferred balance between comfort and responsiveness. The front strut tower and rear multi-link setup work in tandem with **Mazda s Skyactiv-Body** technology, which employs high-strength steel and aluminum components to minimize flex while reducing overall weight. The result is a car that feels planted and composed at high speeds while still retaining the ability to carve through corners with effortless grace. The braking system is equally refined, with **ventilated disc brakes** at all four corners, featuring **Mazda s Brake Assist** and **Electronic Brakeforce Distribution (EBD)** to ensure predictable stopping power, even under the most demanding conditions.

Inside, the KEM-F exudes a sense of purposeful minimalism, with a driver-focused cockpit that prioritizes functionality without compromising aesthetics. The **sport-tuned seats**, upholstered in premium materials, offer both support and ergonomic comfort, while the **multi-function steering wheel** integrates intuitive controls for the **i-Drive infotainment system**, which delivers a seamless blend of connectivity and performance metrics. The **7-inch digital gauge cluster** provides real-time feedback on engine performance, with customizable displays that allow drivers to monitor everything from boost pressure to wheel speed all while maintaining a clean, uncluttered view of the road. The **adjustable pedals** and **sport-tuned shift paddles** (on automatic variants) further enhance the driver s connection to the machine, making every gearshift and throttle input feel deliberate and engaging. Even the ambient lighting is thoughtfully designed, with **dynamic LED accents** that subtly shift between performance and comfort modes, reinforcing the car s dual identity as both a daily driver and a track-focused machine.

Beyond the driver s seat, the KEM-F s interior reflects Mazda s commitment to quality craftsmanship, with **premium materials** like Alcantara, leather, and wood trim that elevate the cabin into a space that feels both luxurious and performance-oriented. The **rear seats** are designed with practicality in mind, offering ample legroom and a fold-flat mechanism for cargo flexibility, though they are clearly secondary to the front passenger s experience a deliberate choice that underscores the car s performance-first ethos. The **Bose premium audio system** (on higher trims) delivers immersive sound quality, ensuring that whether you re cruising on a scenic route or winding through a mountain pass, the ambiance is as engaging as the drive itself.

The KEM-F s exterior design is a study in aerodynamic efficiency and aggressive elegance, with a **low, wide stance** that emphasizes its sporty nature. The **aerodynamic package** includes a **rear wing**, **active grille shutters**, and **venturi tunnels** under the rear bumper, all working together to generate downforce and improve stability at high speeds. The **19-inch alloy wheels** (or 20-inch options on select trims) are not only stylish but also contribute to the car s overall weight reduction, while the **LED headlights and taillights** provide both a futuristic aesthetic and superior visibility. The **carbon fiber accents** on the hood and rear spoiler add a touch of high-performance flair, subtly hinting at the car s track-ready capabilities without sacrificing everyday usability.

What truly sets the Mazda KEM-F 51-771 Skyactiv-G apart is its **versatility** a rare combination of street-legal refinement and track-ready performance. Whether you re navigating a twisty backroad, pushing the limits at a private track, or simply enjoying a spirited drive through the countryside, the KEM-F responds with a level of engagement that feels both natural and exhilarating. The **Skyactiv-G s** linear power delivery, combined with the chassis s precise feedback, ensures that every corner is met with confidence, while the **adaptive suspension** (on available variants) allows the car to adapt to varying road conditions with ease. The result is a car that doesn t just perform it *understands* the driver s intent, making the KEM-F not just a vehicle, but an extension of its owner s passion for the road.

Ultimately, the Mazda KEM-F 51-771 Skyactiv-G is more than just a high-performance sedan; it is a celebration of Mazda s engineering heritage, a testament to the brand s ability to marry cutting-edge technology with timeless driving dynamics. It is a car that demands attention, not just for its power, but for its intelligence every detail, from the engine s efficiency to the chassis s poise, speaks to Mazda s unwavering commitment to creating vehicles that are as thoughtful as they are thrilling. For those who seek a driving experience that is both profound and personal, the KEM-F is not merely a choice it is an invitation to rediscover the joy of the open road.

### Pros and Cons of Buying a Mazda KE (Kemf-51-771) Skyactiv-G Engine

#### **Overview**

The Mazda KE (also referred to as the MZR-L or Skyactiv-G in later iterations) is a family of inline-4 gasoline engines produced by Mazda from the late 1990s through the 2010s. The **KE engine** (specifically the **2.0L KE** or **2.5L KE** variants) was widely used in Mazda models like the Mazda3, Mazda6, CX-5, and others. The **Skyactiv-G** designation refers to Mazda s later generation of these engines, which incorporated advanced technologies like direct injection, variable valve timing, and improved combustion efficiency.

---

### **Pros of the KE/Skyactiv-G Engine**

1. **Proven Reliability**

The KE engine is widely regarded as one of the most durable and dependable engines in Mazda s lineup. Many examples have exceeded **200,000 miles** with basic maintenance. The design is simple, robust, and less prone to catastrophic failure compared to some competitors.

2. **Fuel Efficiency**

The KE engines (especially the **2.0L and 2.5L variants**) are known for their **excellent fuel economy**, often achieving **25-35 MPG** in city/highway driving, depending on the model. The Skyactiv-G iteration further improved this by using **direct injection and optimized combustion**, reducing fuel consumption.

3. **Low Maintenance Costs**

Mazda KE engines require **minimal maintenance** compared to some modern turbocharged engines. Common issues like oil consumption, carbon buildup, or turbo failures are not typical. Basic upkeep (oil changes, spark plugs, timing belt) keeps costs low.

4. **Durability of Key Components**

- **Timing Belt/Chain:** The **2.0L KE** uses a **timing belt**, which should be replaced every **60,000 100,000 miles** (varies by model). The **2.5L KE** uses a **timing chain**, which lasts much longer (often **150,000 miles**).

- **Valvetrain:** The **dual overhead camshaft (DOHC)** design with **variable valve timing (VVT)** is reliable, though some later Skyactiv-G models introduced **carbon buildup issues** (more on this below).

- **Head Gaskets:** Mazda KE engines are **less prone to head gasket failure** compared to some other brands, though they are not entirely immune.

5. **Good Power Output for Naturally Aspirated Engines**

- **2.0L KE:** 150 160 hp (early models) to **160 180 hp** (Skyactiv-G later models).

- **2.5L KE:** 170 180 hp (early) to **180 200 hp** (Skyactiv-G).

While not turbocharged, these engines provide **strong, linear power** without the stress of forced induction.

6. **Compatibility with Modifications**

The KE engine is a **popular choice for tuning**, with aftermarket support for **intake, exhaust, and ECU tuning**. Many owners achieve **200 hp** with minimal risk, making it a great platform for enthusiasts.

7. **Resale Value & Availability of Parts**

Mazda KE engines remain **widely available** in used vehicles, and **parts are still relatively cheap** compared to newer models. This makes repairs and maintenance easier and more affordable.

8. **Skyactiv-G Improvements**

- **Direct Injection:** Reduces fuel consumption and improves efficiency.

- **Higher Compression Ratio:** Better thermal efficiency.

- **Stronger Valvetrain:** Some later models have **stiffer valve springs** to reduce carbon buildup.

- **Improved Oil Control Rings:** Reduces oil consumption in some cases.

---

### **Cons of the KE/Skyactiv-G Engine**

1. **Carbon Buildup (Skyactiv-G Models Only)**

- The **Skyactiv-G engines (2012 )** use **direct injection**, which can lead to **carbon deposits on intake valves** over time.

- Symptoms include **rough idle, misfires, or loss of power**, particularly after long periods of idle (e.g., stop-and-go traffic).

- **Solution:** Requires **intake valve cleaning** (every **60,000 100,000 miles**), which can be costly if done professionally.

2. **Timing Belt Replacement (2.0L KE Only)**

- The **2.0L KE** uses a **timing belt**, which must be replaced **every 60,000 100,000 miles** (or **5 7 years**, whichever comes first).

- **Failure can cause catastrophic engine damage** (bent valves, piston damage).

- **2.5L KE (timing chain):** No replacement needed unless there s a **chain stretch or guide wear** (rare).

3. **Oil Consumption (Some Models)**

- A few **2.0L KE engines** (especially pre-Skyactiv-G) have been known to **burn oil**, though this is **not universal**.

- **Skyactiv-G models** generally have **better oil control**, but some still exhibit minor consumption.

- **Solution:** Regular **oil top-ups** and using **high-quality synthetic oil** helps.

4. **Head Gasket Failures (Rare but Possible)**

- While **less common than in some other engines**, Mazda KE engines **can** develop **head gasket leaks**, especially if overheated.

- Symptoms include **white smoke from exhaust, coolant in oil, or overheating**.

- **Prevention:** Maintain **proper coolant levels** and **check for overheating**.

5. **Electrical & Sensor Issues**

- Some KE engines (especially older models) have **faulty sensors** (MAF, crankshaft position, camshaft position) that can cause **check engine lights**.

- **Skyactiv-G models** are more advanced but can still suffer from **software glitches** requiring **ECU resets or updates**.

6. **No Turbocharging (Limited Performance)**

- Since the KE/Skyactiv-G is **naturally aspirated**, it lacks the **boosted power** of modern turbocharged engines.

- While **tunable**, it **won t match the raw power** of a turbocharged engine in the same class.

7. **Later Model Complexity (Skyactiv-G)**

- The **Skyactiv-G engines** incorporate **more electronics** (direct injection, VVT, etc.), which can make **diagnostics slightly more complex** than older carbureted or port-injected engines.

---

### **Conclusion & Recommendation**

#### **Who Should Buy a Mazda KE/Skyactiv-G Engine?**

- **Reliability-focused buyers** who want a **low-maintenance, long-lasting engine**.

- **Fuel-efficient drivers** who prioritize **MPG over raw power**.

- **Enthusiasts** who enjoy **modifying and tuning** a naturally aspirated engine.

- **Budget-conscious buyers** who want a **used Mazda** with **minimal repair risks**.

- **Those who prefer simplicity** over complex turbocharged or hybrid systems.

- You **need high power output** (turbocharged engines may be better).

- You **hate dealing with carbon buildup** (Skyactiv-G models require occasional cleaning).

- You **don t want to check timing belt intervals** (2.0L KE only).

- You **prefer plug-and-play reliability** over a slightly more involved maintenance routine.

#### **Final Recommendation**

The **Mazda KE/Skyactiv-G engine** is an **excellent choice** for those who value **durability, efficiency, and simplicity**. It is **one of the most reliable naturally aspirated engines** in its class and remains a **great option for daily driving, commuting, or light tuning**.

- **For a 2.0L KE (pre-Skyactiv-G):** Focus on **timing belt replacement** and **oil changes**. Avoid high-mileage examples without proof of maintenance.

- **For a 2.5L KE (timing chain):** Nearly **indestructible** if maintained properly. Great for long-term ownership.

- **For a Skyactiv-G (2012 ):** Be aware of **carbon buildup** and budget for **intake valve cleaning** every **60,000 100,000 miles**. Otherwise, it s a **highly efficient and reliable** engine.

**Verdict:** If you want a **proven, efficient, and mod-friendly engine** that won t break the bank, the **Mazda KE/Skyactiv-G is an outstanding choice**. Just **plan for basic maintenance** (timing belt, carbon cleaning) and you ll have a **car that lasts for decades**.

Details:

NEW OEM Genuine Mazda e SKYACTIVG Nameplate KEMF-51-771, Condition is. Shipping Done via FedEx Ground, UPS Ground or USPS. Orders are typically shipped out within a 24-hour period.

part #: kemf51771 prices

• $24.98-$33.89

specifications emblico:

• for makes: Mazda
• for years: 2019-2021
• mpn: Kemf-51-771
• suitable for: Car
• custom bundle: No
• color: Silver
• placement on vehicle: Rear
• type: Deck Lid Emblem
• year: 2019 2020 2021
• finish: Chrome
• country of origin: China

shipping emblico:

• service: USPS Ground Advantage
• carrier: USPS
• transit: 5-12 Days
• class: Standard
• cost: $0.00
• type: Fixed

general emblico:

• condition: New
• Car Truck Parts Accessories > Exterior Parts Accessories > Emblems Ornaments

seller emblico:

• city: Charlotte, North Carolina
• rating: 99.8%
• # reviews: 1976

returns emblico:

• policy: Returns Accepted
• paid by: Seller
• time: 30 Days

payments emblico:

• credit card: Mastercard
• other
• wallet: Paypal

offer emblico:

• options: Ship-to-home
• best offers: True
• started: February 7, 2026
• sold: 0
• quantity: 1
• availability: In Stock

Mazda KEMF-51-771 Is Similar To:

• C235-51-731 C235-51-731 Mazda Front Emblem Oem (23.5% similar) Items listed for customer pick-up only cannot be shipped. Template made by. Shows normal average wear, condition is a 8 out of 10. Do not duplicate or copy. The photographs in this listing show everything which is included sale. Heavy things may go FedEx. Large, heavy or irregular pieces can take ...(October 21st, 2017)
• 0000-8r-g21 Mazda New Tribute Black Pearl Rear Script Text Logo (22% similar) They are the same parts that were installed on your vehicle when it was new, guaranteeing proper fit and function. Your satisfaction is important to us. Free shipping does not extend to any of these areas. Look at photos, part numbers, connectors, and other relevant information prior to order...(November 15th, 2018)
• 0000-8r-l16 Mazda Brand New Oem Chrome Emblem (42% similar) 3 chrome emblem mazda 8R-L16: brand new oem 2.: brand new oem 3 chrome emblem that is a direct factory replacement for mazda. Manufacturer part number: 0000-8R-L16 identified in schematic if applicable...(November 27th, 2018)
• 0398-69-056 Mazda Genuine Vintage Antique (37.5% similar) I am not sure on the history of emblem but through research it appears to be a mazda. Unsure on age but photos show condition...(April 3rd, 2017)
• 3m81-54465504-aa Mazda Trunk Emblem Script Ornament Symbol Nameplate Badge Logo Oem (36.2% similar) ...(May 3rd, 2018)
• 51741a Mazda Front Grille Logo Emblem Oem (25% similar) The chrome shows scratches, pitting. There are no cracks or breaks in the emblem. Both mounting pins are intact. I usually sell trading cards, old coins, CDs, VHS, DVDs, video games, vintage books, die cast cars, collectibles, electronic items, and used automotive parts from emblems, lights, ...(March 27th, 2019)
• 825d51730 Mazda Protege Rear Oem Emblem Logo Badge (32.4% similar) Adhesive or installing hardware is not included. See photos for size and condition. Item up for sale is a mazda protege rear emblem it silver in color. Condition is used with wear...(February 1st, 2019)
• B25d51710a Mazda Protege Rear Trunk Lid Emblem Nameplate Oem (36.5% similar) No expedited shipping available. Very good condition. See pictures. Used, chrome, both pins in tact. And pictures are detailed to the best of my ability. Shipping only ship in the USA. I am human and apologize for any mistakes if made. Please refer to part number for exact fitment. Part no: ...(June 1st, 2018)
• B25d51730 Mazda Protege Logo Rear Trunk Emblem Oem Chrome (26.8% similar) Please refer to part number for exact fitment. And pictures are detailed to the best of my ability. In very good condition. Used, both pins in tact. Shipping only ship in the USA. Part no: B25D mazda protege logo rear trunk emblem oem chrome. No expedited shipping available. I am human and apologize...(June 7th, 2018)
• Bbn9-51-730b Mazda Brand New Lift Gate Logo Emblem (30.5% similar) Title: brand new lift gate mazda logo emblem 5-DOOR 3 BBN9-51-730B identified in schematic if applicable:: oem that is a direct factory replacement for. Continental us. This part is for 5-DOOR mazda 3 vehicles. Over his many years, he has developed a business of best in class sales and service...(July 3rd, 2018)
• Bby951710 Mazda Brand New Genuine Oem Hatch Emblem (43.8% similar) Brand-new mazda emblem...(July 9th, 2018)