AFE POWER 46-39111 Fuel Injection Throttle Body Cadillac/chevy/gmc/hummer

( Brand: Afe Power ), ( Manufacturer Part Number: 46-39111 ), ( Part Type: Fuel Throttle )

Review AFE POWER Fuel Injection Throttle Body Cadillac/chevy/gmc/hummer

The **AFE Power 46-39111 Fuel Injection Throttle Body** is a high-performance, direct-fit replacement designed to elevate the performance, throttle response, and drivability of select Cadillac, Chevrolet, GMC, and Hummer vehicles equipped with fuel-injected engines. Engineered with precision and built to exacting standards, this throttle body is crafted to seamlessly integrate into the intake manifold, ensuring a clean, unrestricted airflow path while maintaining factory compatibility. Constructed from durable, corrosion-resistant materials, it features a robust stainless steel or high-grade aluminum housing, depending on the application, to withstand the demands of high-performance driving and harsh environmental conditions. The internal design incorporates a high-flow throttle plate and a smooth, polished bore, reducing turbulence and friction to maximize airflow efficiency critical for both stock and modified engines seeking improved throttle response and power delivery.

What sets this throttle body apart is its advanced **electronic throttle control (ETC) compatibility**, allowing for seamless integration with modern engine management systems, including aftermarket ECUs and factory OBD-II setups. The unit is equipped with a **hall-effect sensor** for precise throttle position feedback, ensuring accurate throttle response and smooth operation under all driving conditions, from idle to wide-open throttle. The robust wiring harness and secure mounting brackets are designed to minimize vibration and prevent loosening, while the integrated **throttle body actuator (TBA) or electronic throttle control (ETC) module** (depending on the application) ensures reliable and consistent performance. Whether installed on a daily driver, a performance-oriented vehicle, or a classic restoration project, this throttle body delivers a noticeable improvement in throttle smoothness, fuel efficiency, and overall engine responsiveness.

For enthusiasts and mechanics alike, the **AFE Power 46-39111** is a standout choice due to its **direct-fit design**, which eliminates the need for extensive modifications or custom fabrication, saving time and ensuring a professional-grade installation. The unit is rigorously tested to meet or exceed OEM specifications, guaranteeing compatibility with a wide range of applications, including but not limited to Cadillac Escalade, Chevrolet Silverado, GMC Sierra, and Hummer H2/H3 models with fuel-injected engines. Whether upgrading from a worn-out OEM part or replacing a failed aftermarket component, this throttle body offers a reliable, high-performance solution that restores factory-like functionality while enhancing the driving experience. With its combination of durability, precision engineering, and seamless integration, the **AFE Power 46-39111** is an essential component for anyone looking to optimize their vehicle s performance with confidence.

### **Pros and Cons of Buying an Afe Power 46-39111 Fuel Injection Throttle Body (for Cadillac, Chevy, GMC, Hummer)**

1. **Performance Enhancement** The Afe Power throttle body is designed to improve airflow and throttle response, which can lead to better engine performance, especially in high-performance or modified applications. It often provides a more linear and responsive throttle feel compared to stock units.

2. **Durability and Quality** Afe Power is known for manufacturing high-quality aftermarket parts, including throttle bodies that are built to withstand higher stress levels than OEM components. This can extend the lifespan of the part, especially in aggressive driving or tuning scenarios.

3. **Compatibility** The 46-39111 model is specifically designed for certain Cadillac, Chevy, GMC, and Hummer applications (such as LS-based engines). Afe Power throttle bodies are engineered to fit seamlessly with these vehicles, reducing the risk of installation issues.

4. **Ease of Installation** Many Afe Power throttle bodies come with detailed installation instructions and are designed to be straightforward to replace, often requiring only basic tools. This can save time and labor costs compared to more complex aftermarket upgrades.

5. **Support for Tuning** If you plan to tune your engine, a high-flow throttle body like this one can help optimize fuel delivery and airflow, allowing for better tuning results. It pairs well with performance chips, ECU remaps, and other modifications.

6. **Reliability in High-Performance Use** For vehicles used in towing, hauling, or high-RPM applications, a robust throttle body like this can help prevent common issues like throttle body failure or carbon buildup, which are more likely with stock components under heavy use.

7. **Aesthetic Appeal** Some aftermarket throttle bodies, including Afe Power s, offer a cleaner or more aggressive appearance under the hood, which can be appealing to enthusiasts who prioritize both function and style.

---

1. **Cost** The Afe Power 46-39111 throttle body is more expensive than an OEM replacement. While it offers performance benefits, the upfront cost may be a deterrent for budget-conscious buyers, especially if the stock throttle body is still functioning adequately.

2. **Potential for Overkill on Stock Applications** If your vehicle is not heavily modified or tuned, the benefits of upgrading to this throttle body may be minimal. For daily drivers with stock engines, the performance gains might not justify the expense.

3. **Requires Additional Modifications** Installing a high-flow throttle body often necessitates other upgrades to fully realize its potential. This could include:

- Upgrading the fuel system (pump, injectors, fuel rail) to match the increased airflow.

- Tuning the ECU to prevent fueling issues or stumbling.

- Ensuring the intake and exhaust systems are compatible to avoid bottlenecks.

Without these adjustments, the throttle body may not perform optimally, and you might experience rough idling, hesitation, or poor throttle response.

4. **Learning Curve for Tuning** If you re not experienced with engine tuning, the transition to a high-flow throttle body can be tricky. Incorrect tuning can lead to poor performance, drivability issues, or even engine damage. This may require consulting a professional tuner.

5. **Potential for Carbon Buildup** High-flow throttle bodies can accumulate carbon deposits more quickly, especially in vehicles with poor air filtration or frequent short trips. Regular cleaning or upgrading to a throttle body with a carbon-resistant coating (if available) may be necessary.

6. **Warranty Considerations** Some vehicles come with extended warranties that may void coverage if aftermarket parts like throttle bodies are installed. Always check your warranty terms before proceeding with modifications.

7. **Compatibility Verification** While Afe Power throttle bodies are designed for specific applications, there is always a risk of misfit or compatibility issues if the vehicle has been heavily modified or if the wrong part is ordered. Double-checking the vehicle s engine specifications and year is critical.

---

The Afe Power 46-39111 fuel injection throttle body is a solid choice for enthusiasts looking to enhance the performance of their Cadillac, Chevy, GMC, or Hummer, particularly those with LS-based engines or those planning further modifications. Its durability, quality, and compatibility make it a reliable upgrade for high-performance or tuned applications. However, it is not a necessary upgrade for stock or lightly modified vehicles, where the cost may outweigh the benefits.

If you decide to install it, be prepared to invest in complementary upgrades (such as tuning, fuel system improvements, and air intake/exhaust modifications) to ensure optimal performance. For those who prioritize reliability, throttle response, and long-term durability, this throttle body is a worthwhile investment. For casual drivers or those on a tight budget, however, the stock throttle body may suffice without the need for an aftermarket upgrade.

- You are modifying your vehicle for performance (e.g., forced induction, supercharging, or significant tuning).

- You experience throttle lag, poor idle quality, or airflow restrictions in your current setup.

- You are willing to invest in additional upgrades (tuning, fuel system, intake) to complement the throttle body.

- Your vehicle s application demands higher airflow (e.g., towing, high-RPM use, or aggressive driving).

- Your vehicle is stock or lightly modified, and you are not planning further tuning.

- You are concerned about the upfront cost without clear performance benefits.

- You lack experience with engine tuning and are unable to consult a professional tuner.

- Your warranty may be voided by aftermarket modifications.

For most enthusiasts who are serious about performance, the Afe Power throttle body is a well-regarded upgrade that can significantly improve throttle response and engine efficiency. However, it should be part of a broader strategy of vehicle optimization rather than a standalone fix.

Details:

Condition: New. This aFe POWER 92mm throttle body kit uses all factory mounting locations, providing stability and a hassle-free installation. Manufacturer: aFe Power. Brand: aFe Power.

Items must be New, Unused, Not Installed, in the Original Packaging and able to resold. The extra air flow will increase horsepower and throttle response. Domestic Shipping: The shipping cost on this listing or the Free Shipping is for lower 48 States. MPN: 46-39111.

This aFe POWER 92mm Throttle Body and adapter kit improves engine air flow over the stock 87mm throttle body.

part #: 4639111 prices

• $415.00-$480.06

specifications carfuelinjector:

• for makes: Cadillac, Chevy, Gmc, Hummer
• brand: Afe Power
• mpn: 46-39111
• part type: Fuel Throttle

offer carfuelinjector:

• availability: In Stock
• quantity: 2
• options: Ship-to-home
• sold: 0
• started: March 14, 2026

seller carfuelinjector:

• rating: 99.3%
• city: Grant, Michigan
• # reviews: 172654

returns carfuelinjector:

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

payments carfuelinjector:

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

shipping carfuelinjector:

• type: Fixed
• service: Expedited
• class: Expedited
• cost: $0.00
• transit: 3-6 Days

general carfuelinjector:

• condition: New
• Air Fuel Delivery > Fuel Injection Parts > Fuel Injectors

Afe Power 46-39111 Is Similar To:

• Afe Power Advanced Flow Engineering 46-39108 For 18-24 Ford Mustang Gt V8 5.0l 85mm Throttle Body (40.2% similar) Manufacturer: Afe Power advanced flow engineering, part number: 46-39108, condition: new: Afe Power 85MM throttle body ford mustang 18-24 V8-5.0L this improves engine air flow over the stock 80MM throttle body. This Afe Power 85MM throttle body kit uses all factory mounting locations providing ...(January 30th, 2025)
• Afe Power 46-39107 Fuel Injection Throttle Body (72.6% similar) Cannot be shipped by ground; air. Our favourite brands. Engine dress-up. Fitment summery. Part NUMBER:46-39107. Smaller items may be shipped in an appropriate envelope using either USPS, ups or FedEx. Gaskets and fittings. Item condition. Typical items are shipped in an appropriate box via ups. Fuel...(January 31st, 2025)
• Afe Power 46-39102 (33.7% similar) Afe is passionate about providing the most compelling, innovative, and highest performing products that are designed, built tested in USA. Part #: 46-39102. Current product lines include cold air intake systems, high performance direct fit and racing filters, exhaust inter coolers, turbochargers, ...(February 5th, 2025)
• Afe 44-ff014-mb For Ford F-250 Super Duty 2011-2019 Pro Guard D2 Fuel Filter (28.8% similar) Pro guard d2 fuel filter 44-FF014-MB by Afe. Burst strength canister for and durability. Withstands high oil pressures. Specifications: quantity: 4 pieces. Anti-back flow valve to reduce damage during cold starts. The pro guard d2 fuel filters are direct OE replacement filters to ensure a proper fit...(April 23rd, 2025)
• Afe 44-ff023 For Chevy Silverado 2500 Hd 2017-2025 Pro Guard Fuel Filter (25.5% similar) Burst strength rating. Afe created the pro guard d2 oil filter to handle extreme conditions typically encountered by a heavy-duty diesel truck. The filter media is wire backed for strength and a heavy-duty nitrite rubber gasket provides leak proof seal. Specifications: quantity: 1 piece. Anti-back ...(April 25th, 2025)
• Afe Power 46-39109 Fuel Injection Throttle Body 87mm (74.8% similar) Part #: 46-39109. Current product lines include cold air intake systems, high performance direct fit and racing filters, exhaust inter coolers, turbochargers, electronic programmers, diesel fuel throttle body spacers, more. Need advice on which exhaust system to purchase. Afe is passionate about ...(June 6th, 2025)
• Afe Power 87-10035 87 10035 Aries Powersport Oe Repl Acement Air Filter W Pr (26.1% similar) For kits, photo might show entire kit and listing is only for one component. Aries Power sport OE replacement air filter w/ pro guard 7 media. Aries Power sport OE repel cement air filter w/ pr,:: replacement. Note: photos do not always represent the actual product...(July 3rd, 2025)
• Afe Power 46-39106 70mm Throttle Body (54.4% similar) Afe is passionate about providing the most compelling, innovative, and highest performing products that are designed, built tested in USA. Afe Power 46-39106 Afe Power 70MM throttle body flat rate $9.95 shipping. Current product lines include cold air intake systems, high performance direct fit and ...(August 18th, 2025)
• Afe 44-ff006 For Ford Excursion 2004-2005 Pro Guard D2 Fuel Filter (28% similar) The pro guard d2 fuel filters are direct OE replacement filters to ensure a proper fit and hassle free installation. Pro guard d2 fuel filter 44-FF006 by Afe. Anti-back flow valve to reduce damage during cold starts. 1 outside, 3/8 inside nut/ratchet drive fitting welded to canister facilitate ...(August 29th, 2025)
• Afe Power 46-39113 Fuel Injection Throttle Body 85mm (76.3% similar) Current product lines include cold air intake systems, high performance direct fit and racing filters, exhaust inter coolers, turbochargers, electronic programmers, diesel fuel throttle body spacers, more. Need advice on which exhaust system to purchase. Afe Power fuel injection throttle body - Afe ...(September 3rd, 2025)
• Afe Power 46-39103 Fuel Injection Throttle Body Fits Toyota 4runner fj tacoma tundra 03-1 (62.7% similar) Exempted parts are add-on or modified that have undergone an Arab engineering evaluation. Every executive order part or modification has an assigned number that smog check stations, bar referee the Arab can verify. Afe is passionate about providing the most compelling, innovative, and highest ...(September 5th, 2025)