FORD Automatic Transmission 400-03749A 8-330 5.4L 4R100

( Manufacturer Part Number: F150 ), ( Part Type: Transmission ), ( Conditions Options: Checkid A4sp Rwd ), ( Genuine Oem: Yes ), ( Ipn: 400-03749a ), ( Manufacturer Warranty: 6 Month ), ( Partout Id: A-124700950 )

Review FORD Factory Oem Automatic Transmission 5.4l Pickup fits F150 2WD 2001

The **400-03749A Automatic Transmission (8-330 5.4L 4R100, 2WD, 2001 Ford F-150)** is a robust and meticulously engineered transmission designed to deliver seamless power delivery and exceptional durability for Ford s iconic 2001 F-150 pickup truck. Built to pair effortlessly with the legendary **5.4L Triton V8 engine**, this **4R100 four-speed automatic transmission** is a cornerstone of performance, reliability, and longevity for heavy-duty applications. The **8-330** designation refers to its specific torque capacity, making it ideal for towing, hauling, and high-stress driving scenarios where a transmission must withstand significant loads without compromising performance. Crafted with precision, this transmission features a **heavy-duty planetary gearset**, reinforced bearings, and a **multi-plate torque converter** that ensures smooth engagement and optimal power transfer, even under demanding conditions.

The **4R100** is renowned for its **durability and adaptability**, originally developed for Ford s full-size trucks and SUVs, and the **2001 F-150** benefits from its proven track record of handling high torque loads with ease. The transmission s **hydraulic valve body** is finely tuned to provide precise shifting control, reducing wear while maintaining responsiveness, whether cruising on the highway or navigating rough terrain. Its **2WD configuration** ensures optimal efficiency for front-wheel-drive applications, though it remains versatile enough for light off-road use when paired with the right drivetrain setup. The **automatic shift mechanism** eliminates the need for manual intervention, offering convenience without sacrificing performance, as the transmission automatically adjusts gear ratios to maximize fuel efficiency and engine performance.

Under the hood, this transmission is designed to integrate seamlessly with the **5.4L Triton V8**, a powerhouse known for its torque and reliability. The **4R100 s robust construction** includes a **cast aluminum housing**, reinforced shift linkage, and a **durable clutch pack system** that minimizes slippage and extends the transmission s lifespan. Whether used in a **work truck, towing application, or high-performance setup**, this transmission is built to endure the rigors of daily use while delivering consistent power delivery. Its **proven compatibility** with the 2001 F-150 ensures that drivers can rely on smooth acceleration, efficient gear transitions, and long-term dependability making it a sought-after upgrade or replacement for those seeking both performance and durability in their Ford truck.

For enthusiasts and professionals alike, the **400-03749A** represents a balance of **Ford s engineering excellence and aftermarket reliability**, offering a direct replacement that maintains factory specifications while enhancing overall drivetrain performance. Whether restoring a classic F-150 or upgrading an existing vehicle, this transmission provides the **torque handling, shift quality, and longevity** expected from one of Ford s most trusted automatic transmissions. With proper maintenance including regular fluid changes and inspection of seals and linkages this **4R100** will continue to deliver reliable power for thousands of miles, ensuring that every drive is as smooth and powerful as the day it was installed.

### **Pros and Cons of Buying a 2001 Ford F-150 (400-03749A) with 5.4L Triton V8, 4R100 Automatic Transmission, 2WD**

#### **Pros**

1. **Reliable Engine and Transmission**

- The **5.4L Triton V8** is a well-known, durable engine known for its longevity, especially when maintained properly. It s a workhorse engine commonly used in trucks for towing and heavy-duty tasks.

- The **4R100 automatic transmission** is a robust Ford transmission designed for heavy loads, offering smooth shifting and good durability when serviced regularly.

2. **Strong Towing and Hauling Capability**

- The **2WD configuration** paired with the 5.4L engine provides solid towing and payload capacity (up to **8,500 lbs towing** and **2,000 lbs payload** with proper setup), making it suitable for farm work, trailers, or light-duty towing.

- The **4R100 transmission** is built for towing, handling heavy loads better than some lighter transmissions.

3. **Proven Durability**

- Ford s **4.6L and 5.4L V8 engines** (especially in this era) are known for lasting **200,000 miles** with basic maintenance. Many examples of this truck still run strong after decades.

- The **4R100 transmission** is less prone to failure compared to some modern transmissions, though it requires proper fluid changes and cooling.

4. **Lower Cost of Ownership (Compared to Modern Trucks)**

- **Parts and labor** are generally cheaper than newer Ford trucks, especially if you re comfortable doing some maintenance yourself.

- **Fuel efficiency** is not great (around **12-15 MPG combined**), but the cost of gas in 2001 was much lower, making long-term fuel expenses reasonable.

- **Insurance** tends to be cheaper than for newer high-value trucks.

5. **Simple and Easy to Work On**

- The **mechanical nature** of this truck makes it easier to diagnose and repair than modern electronics-heavy vehicles.

- **Aftermarket support** is strong parts, mods, and upgrades are widely available.

6. **Good for Off-Road or Heavy-Duty Use**

- With **2WD**, it s not ideal for severe off-roading, but it handles **dirt roads, gravel, and light trails** well if properly maintained.

- The **high torque** of the 5.4L engine makes it suitable for **pulling heavy loads** or **towing trailers**.

7. **Resale Value (If Well-Maintained)**

- While not a high-value truck, a **clean, low-mileage example** with service records can still fetch a decent price in the used market.

---

#### **Cons**

1. **Poor Fuel Economy**

- The **5.4L V8** is a gas-guzzler, averaging **12-15 MPG combined**, making it expensive to run on a daily basis.

- If you do **high-mileage driving**, fuel costs will add up significantly over time.

2. **Outdated Safety Features**

- **No modern safety tech** (no stability control, minimal airbag options, poor crash test ratings compared to today s standards).

- **Manual transmissions** (if considering alternatives) are more efficient, but this is an **automatic-only** truck.

- **No backup camera, blind-spot monitoring, or advanced driver aids** reliant on mirrors and manual checks.

3. **Rust and Corrosion Issues**

- Many **2000s Ford F-150s** suffer from **rust**, especially in **winter-salted regions**. Check the **floor pans, wheel wells, and frame rails** thoroughly.

- **Undercoating** was often poor in this era, leading to **frame rot** in some cases.

4. **Transmission and Cooling Concerns**

- The **4R100 transmission** can **overheat** if not properly cooled, leading to **slipping or failure** over time.

- **Transmission fluid must be changed every 50,000-60,000 miles** many owners neglect this, leading to premature wear.

- **Torque converter issues** can develop if fluid is old or overheated.

5. **Emissions and Modern Compliance**

- This truck **does not meet modern emissions standards**, meaning it **cannot be driven in some low-emission zones** (e.g., parts of California).

- **Smog checks** may be required in some states, adding to maintenance costs.

6. **Comfort and Modern Conveniences Lacking**

- **Basic interior** no power everything, limited audio options, and **poor sound insulation** (noisy cabin).

- **Clutch and shifter** (if considering manual alternatives) are not an option here **only automatic**.

- **No modern infotainment** CD player at best, no Bluetooth, USB, or Apple CarPlay/Android Auto.

7. **Reliability Depends on Maintenance History**

- If the truck was **neglected** (no oil changes, no transmission service, no cooling system checks), it could be **on the verge of failure**.

- **Oil leaks** (valve cover, rear main seal, oil pan gasket)

- **Coolant leaks** (water pump, thermostat housing)

- **Exhaust leaks** (catalytic converter, muffler)

- **Suspension wear** (shocks, bushings, ball joints)

8. **Resale Depreciation**

- This is an **older truck**, and while it may last, it **won t hold value** like a newer model.

- If you plan to sell later, you ll likely get **less than what you paid** unless it s in **excellent condition**.

9. **No Modern Tech or Upgrades**

- **No OBD-II diagnostics** (early models had OBD-I, which is less advanced).

- **No easy access to modern tuning** (ECU flashing is possible but requires knowledge).

- **No modern suspension upgrades** (lift kits, coilovers, etc., are available but may not fit as well as on newer trucks).

10. **Environmental Concerns**

- **High emissions** compared to modern diesel or hybrid alternatives.

- **Not ideal for eco-conscious buyers** who prefer fuel-efficient or cleaner vehicles.

---

### **Conclusion**

The **2001 Ford F-150 (5.4L V8, 4R100, 2WD)** is a **solid, durable work truck** that excels in **towing, hauling, and heavy-duty tasks** when properly maintained. It s **cheap to buy, easy to repair, and built to last** if you re willing to put in the effort.

- **Poor fuel economy** makes it expensive to run daily.

- **Lack of modern safety and convenience features**.

- **Rust and maintenance risks** if not well-cared-for.

- **Outdated emissions compliance** could limit where you can drive.

**Heavy-duty work** (farming, towing, construction).

**Buyers who prioritize durability over modern tech**.

**Those who enjoy working on their own vehicles**.

**People in rural areas where fuel costs aren t a major concern**.

**Daily commuters** (high fuel costs, poor efficiency).

**Buyers who want modern safety features**.

**Those who prefer plug-and-play convenience**.

**People in areas with strict emissions laws**.

---

### **Final Recommendation**

- You **need a reliable, high-torque work truck** for towing or heavy loads.

- You re **prepared to maintain it properly** (oil changes, transmission fluid, cooling system checks).

- You **don t mind older tech** and are okay with **higher fuel costs**.

- You **find a well-documented example** with **low miles and good service records**.

- You **drive it daily** and want better fuel economy.

- You **need modern safety features** (stability control, backup camera, etc.).

- You **can t afford or don t want to maintain it properly**.

- You **live in an area with strict emissions laws** or plan to travel frequently.

- If you **need better fuel economy**, look at a **modern diesel F-150 (Power Stroke) or a used 4.7L V8 with EcoBoost**.

- If you **want modern tech**, consider a **used 2015 F-150 with a 3.5L EcoBoost or 2.7L Turbo Diesel**.

- If you **prefer manual transmissions**, look at a **used Chevy Silverado with a 6.2L V8 or a Ram 1500 with a Cummins**.

This **2001 Ford F-150 is a great choice for the right buyer** someone who values **durability, towing

Details:

Lightning; ID 1L3P-AB. Lightning; ID 1L3P-AA, FORD F150 PICKUP 01 AT; 8-330 5.4L, 4R1 4x2, excl.

part #: f150 prices

• $89.09-$134.95

specifications autotransmissionsgo:

• for models: F150, 2wd
• for makes: Ford
• for years: 2001
• mpn: F150
• part type: Transmission
• conditions options: Checkid A4sp Rwd
• genuine oem: Yes
• ipn: 400-03749a
• manufacturer warranty: 6 Month
• partout id: A-124700950

offer autotransmissionsgo:

• quantity: 1
• sold: 0
• best offers: True
• availability: In Stock
• options: Ship-to-home
• started: April 24, 2026

returns autotransmissionsgo:

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

shipping autotransmissionsgo:

• class: Freight
• service: Flat Rate Freight
• cost: $300.00
• type: Fixed

payments autotransmissionsgo:

• credit card: Diners-club
• other
• wallet: Paypal

seller autotransmissionsgo:

• city: Savannah, Tennessee
• rating: 99.1%
• # reviews: 4945

general autotransmissionsgo:

• condition: Used
• Car Truck Parts Accessories > Transmission Drivetrain > Automatic Transmission

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