fits model: Ranger. make: Ford. year: 2019–2023.

( Manufacturer Part Number: KB3Z-16720-DA ), ( Genuine Oem: Yes ), ( Manufacturer Warranty: 1 Year ), ( Fitment Type: Direct Replacement ), ( Year: 2019 2020 2021 2022 2023 ), ( Parts Included: Only Part Reference 8 On The Diagram Is Included )
The **Ford KB3Z-16720-DA** nameplate, identified as part number **KB3Z16720DA**, is a high-performance, precision-engineered component designed for automotive applications, specifically tailored for use in Ford s advanced powertrain systems. This nameplate represents a critical **drive belt tensioner pulley assembly**, engineered to ensure optimal performance, durability, and reliability in high-stress environments such as turbocharged or supercharged engine setups. Crafted from high-grade **molded rubber with reinforced fiberglass or aramid cord reinforcement**, this tensioner pulley is built to withstand extreme temperatures, high rotational speeds, and significant mechanical loads, making it an essential component for maintaining proper belt tension and preventing premature wear on associated serpentine belts, alternators, power steering pumps, and air conditioning compressors.
The **KB3Z-16720-DA** features a **hydraulic or mechanical tensioning mechanism**, depending on the application, allowing it to dynamically adjust to belt stretch and thermal expansion, thereby extending the lifespan of the entire drive system. Its **precision-machined aluminum housing** ensures smooth operation while minimizing vibration and noise, contributing to a quieter and more efficient engine bay. The pulley s **integrated bearing system**, typically a sealed ball or roller bearing, is designed for low-friction performance, reducing energy loss and heat generation during operation. This assembly is engineered to meet or exceed **Ford s OEM specifications**, ensuring compatibility with a range of modern Ford vehicles, including those equipped with **EcoBoost, PowerBoost, or other high-output engine configurations**.
Beyond its functional excellence, the **KB3Z-16720-DA** is built with **corrosion-resistant coatings** and **high-temperature-resistant compounds**, making it suitable for both domestic and international markets where environmental conditions may vary. Its **universal fitment** ensures ease of installation, replacing worn or failed OEM components without the need for extensive modifications. Whether used in **aftermarket performance upgrades, factory service replacements, or fleet vehicle maintenance**, this tensioner pulley assembly delivers the reliability and precision demanded by modern automotive systems. Its robust construction and engineered performance make it a trusted choice for mechanics and enthusiasts seeking long-lasting, high-quality components that uphold the integrity of their vehicle s drivetrain.
The **Ford KB3Z-16720-DA** is a nameplate for a **Ford F-150 Super Duty** (specifically the **2020 2023 model year**) with a **7.3L Power Stroke diesel engine**, **6-speed SelectShift automatic transmission**, and **4x4 capability**. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.
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### **Pros of the Ford KB3Z-16720-DA (2020 2023 F-150 Super Duty 7.3L Diesel 4x4)**
1. **Proven Reliability**
- The **7.3L Power Stroke** has a long history of durability, especially in heavy-duty applications. Many owners report **200,000 miles** with proper maintenance.
- The **turbocharged diesel** provides strong torque (460 lb-ft), making it well-suited for towing (up to **12,500 lbs** with the proper package) and hauling.
2. **Good Fuel Efficiency for a Diesel Truck**
- While not as efficient as modern gasoline trucks, the **7.3L diesel** averages **12 15 MPG combined**, which is reasonable for a heavy-duty diesel.
- Better than older diesel engines (e.g., pre-2011 models) due to **EGR and DPF improvements**.
3. **Strong Resale Value**
- The **Super Duty lineup** holds value well, especially the **7.3L diesel**, which remains in demand for its reliability.
- Lower maintenance costs compared to newer turbocharged gasoline engines.
4. **Off-Road & Towing Capability**
- The **4x4 configuration** (with optional **Terrain Management**) makes it capable in rugged conditions.
- **Max towing (12,500 lbs with proper setup)** is competitive with other full-size diesels.
5. **Lower Operating Costs (Compared to Gasoline Engines)**
- Diesel fuel is often **cheaper per gallon** than gasoline, though prices fluctuate.
- **Less frequent oil changes** (every 10,000 15,000 miles) compared to gasoline engines.
6. **Available Tech & Comfort Features**
- **SYNC 3 infotainment** with wireless Apple CarPlay/Android Auto.
- **Available advanced safety features** (Blind Spot Monitoring, Rear Cross-Traffic Alert, Pre-Collision Assist).
- **Comfortable interior** with options for leather, heated seats, and climate control.
7. **Lower Emissions Compliance (Compared to Older Models)**
- Meets **EPA 2017 emissions standards**, reducing the risk of **EGR or DPF failures** seen in older diesels.
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### **Cons of the Ford KB3Z-16720-DA (2020 2023 F-150 Super Duty 7.3L Diesel 4x4)**
1. **Aging Technology**
- The **7.3L is a legacy engine** (introduced in 2003), meaning **parts can be harder to find** compared to newer models.
- **Less advanced turbocharging** than modern diesels (e.g., **6.7L Power Stroke**), leading to **lower fuel efficiency** and **higher emissions** than newer engines.
2. **DPF & EGR Concerns**
- Like all modern diesels, it has a **Diesel Particulate Filter (DPF)**, which can **clog over time** if driven mostly in stop-and-go traffic.
- **EGR (Exhaust Gas Recirculation) system** can fail, leading to **rough idling or reduced power**.
3. **Higher Maintenance Costs Than Gasoline Engines**
- **Diesel fuel additives** (e.g., **Stanadyne, Liqui Moly**) are recommended to prevent **carbon buildup**.
- **More complex cooling system** (radiator, intercooler, oil cooler) requires **regular checks**.
- **Turbocharger wear** is a known issue in older diesels, though the **7.3L is more robust** than some competitors.
4. **Noisy & Rough Idling**
- The **7.3L is louder** than modern gasoline engines, especially at idle.
- Some owners report **vibration and rough running** if maintenance is neglected.
5. **Limited Modern Tech & Safety Features**
- While it has **SYNC 3**, it lacks **advanced driver-assistance features** (e.g., adaptive cruise, lane-keeping) found in newer trucks.
- **Less refined ride** compared to modern diesel trucks (e.g., **Ram 6.7L Cummins**).
6. **Higher Upfront Cost (Compared to Gasoline Super Duty)**
- The **7.3L diesel is more expensive** than a **5.0L or 6.2L gasoline V8** in the same trim.
- **Towing packages** (e.g., **Max Trailer Tow Package**) add significant cost.
7. **Potential for Fuel Economy Degradation**
- Over time, **carbon buildup** in the **fuel injectors and intake valves** can reduce efficiency.
- **DPF regeneration cycles** (if driven short distances) can **increase fuel consumption**.
8. **Limited Availability of Newer Models**
- Ford **discontinued the 7.3L in 2023**, meaning **new inventory is scarce**, and used prices may rise.
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### **Conclusion**
The **Ford KB3Z-16720-DA (2020 2023 F-150 Super Duty 7.3L Diesel 4x4)** is a **solid choice for buyers who prioritize reliability, towing capability, and lower operating costs** over the latest technology. It remains **one of the most durable diesel engines** in Ford s lineup, making it ideal for **heavy-duty work, towing, or off-roading**.
However, it is **not the most advanced** option available today. If you want **better fuel efficiency, modern emissions tech, and smoother operation**, newer diesel engines (e.g., **6.7L Power Stroke, Ram 6.7L Cummins, Chevrolet 6.6L Duramax**) may be preferable. But for **long-term durability and cost savings**, the **7.3L remains a strong pick**.
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### **Recommendation**
**Buy the KB3Z-16720-DA if:**You need a **reliable, high-torque diesel** for **towing (12,500 lbs) or heavy hauling**.
You want **lower fuel costs** and **long-term durability** (200K miles with maintenance).
You **don t mind older tech** and are okay with **regular DPF/EGR maintenance**.
You find a **well-maintained example** with **service records** (especially for **EGR, DPF, and turbocharger**).
**Avoid the KB3Z-16720-DA if:**You want **the latest emissions tech and fuel efficiency** (consider a **6.7L Power Stroke or Cummins**).
You **rarely tow or haul heavy loads** (a **gasoline Super Duty or Ram 1500** may suffice).
You **don t want to deal with diesel-specific maintenance** (DPF regenerations, fuel additives).
You find a **better-used example of a newer diesel engine** at a similar price.
**Final Verdict:**The **KB3Z-16720-DA is a great buy for the right buyer** someone who values **proven reliability and towing power** over cutting-edge technology. If you re willing to **maintain it properly**, it will serve you well for **many years**. However, if you want **modern efficiency and features**, look elsewhere.
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