Electronic Throttle Body For Dodge Chrysler Jeep 5.7/6.1/6.4 HEMI – 90mm – OE4591847AC – LOREADA

OE Numbers: 4591847AC / 04591847AC

Bore Diameter: 90mm | High Performance Direct Fit | 12+24 Month Warranty | 100% Factory Tested

Vehicle Fitment – Compatible with:

⚠️ Important: This 90mm Big Bore Throttle Body is a high performance upgrade for Chrysler/Dodge/Jeep/Ram vehicles equipped with 5.7L, 6.1L, and 6.4L HEMI V8 engines. This listing is for an aftermarket performance part, not genuine Mopar. Please verify your original OE number before ordering. The OE Mopar throttle body for these applications is 90mm from the factory — this part matches the factory 90mm specification. Professional tuning (ECM calibration) is strongly recommended after installation for optimal performance on modified engines.

OE Cross Reference – Match with your original part:

ℹ️ Mopar OE number 4591847AC supersedes 4591847AB and 68060354AA. This aftermarket throttle body is designed to meet or exceed OE specifications for direct fitment.

Technical Specifications

ℹ️ The 90mm throttle opening increases airflow capacity, maximizing engine performance when paired with supporting modifications (cold air intake, exhaust, tune).

Product Highlights

✅ 90mm Big Bore Design – Larger throttle bore allows significantly increased airflow compared to stock, improving throttle response and delivering noticeable power gains, especially when combined with cold air intakes and exhaust upgrades.

✅ OE Direct Fit – Matches factory Mopar 6-pin connector, bolt pattern, and gasket. Direct bolt-on replacement – no adapter plates or wiring modifications required.

✅ High Performance – High-torque motor with response time ≤ 50 ms for precise intake control, smooth acceleration, and crisp throttle response.

✅ Reliability – Built-in dual redundant position sensors prevent idle fluctuations, hunting, and false error codes (P0638, P2100, P2119, P2135, etc.).

✅ Durable Construction – Die-cast aluminum housing with anti-corrosion surface treatment; stainless steel butterfly valve for long-lasting performance under harsh engine conditions.

✅ Rigorous Testing – 100% factory-tested for thermal cycling, airtightness, and full-stroke angle calibration.

✅ HEMI Optimized – Specifically engineered for Chrysler 5.7L, 6.1L, and 6.4L HEMI V8 engines, ensuring proper air/fuel mixture for smooth idle and optimal power delivery.

✅ Tuning Recommended – For maximum performance gains on modified engines (camshaft, headers, supercharger), professional ECM calibration is strongly recommended.

Common Symptoms of a Failing Throttle Body (HEMI V8)

• Unstable idle, "hunting," or engine stalling at stops

• Hesitation or flat spot during acceleration

• Check Engine Light (CEL) – common DTCs: P0638, P0697, P2100, P2101, P2119, P2135

• Poor throttle response / delayed acceleration

• Reduced power / limp mode

• Cruise control malfunction (if equipped)

• Rough idle that improves when throttle is applied

*These symptoms are frequently reported for high-mileage HEMI vehicles when the throttle body components wear out. Upgrading to a 90mm unit restores and often improves performance.*

Installation & Tuning Tips

IMPORTANT: After replacing the throttle body on Chrysler/Dodge/Jeep/Ram HEMI V8 engines, a throttle self-learning / idle relearn procedure is REQUIRED.

For HEMI V8: The above procedure typically works for stock or lightly modified engines. For heavily modified engines (camshaft, forced induction, etc.), professional tuning using diagnostic tools (HP Tuners, DiabloSport, etc.) is strongly recommended to optimize idle airflow and throttle response. After replacement, it may take a few drive cycles for the ECU to fully adapt to the new throttle body.

Packing List

• 90mm Big Bore Throttle Body Unit (complete assembly with TPS and motor) × 1

• *(Gasket/seal not included – Mopar 53032383AB recommended)*

• Warranty Card / Quality Certificate × 1

• (Optional: Screws / Connector protector – may vary by manufacturer)

How to Ensure You Get the Correct Part

1. Confirm your vehicle is equipped with a 5.7L, 6.1L, or 6.4L HEMI V8 engine (2003–2013 model years). This throttle body is NOT compatible with 3.6L Pentastar V6 or 5.7L HEMI engines before 2005 without verification.

2. Check your original part number on the existing throttle body – look for 4591847AC, 4591847AB, or 68060354AA.

3. Verify the connector has 6 pins (OEM Mopar specification for this application).

4. Note that the throttle body gasket (Mopar 53032383AB) is not included and should be purchased separately.

5. Contact us with your VIN or a photo of your original part if unsure.

⚠️ Important: This throttle body is for 5.7L / 6.1L / 6.4L HEMI V8 engines ONLY. It will NOT fit:

• 3.6L Pentastar V6 engines

• 4.7L V8 engines

• Pre-2005 5.7L HEMI engines without verification

• Any diesel engines

After-Sales & Disclaimer

• Pre-installation check: Inspect the throttle body for any defects. Verify the OE number and connector type (6-pin) before installation.

• Gasket requirement: A new mounting gasket (Mopar 53032383AB or equivalent) is strongly recommended for proper sealing and to prevent vacuum leaks. Gasket is not included.

• Tuning disclaimer: This 90mm throttle body will function correctly on stock HEMI engines but professional tuning is recommended for optimal performance, especially on modified engines.

• Professional installation recommended: While installation is straightforward, proper adaptation is critical. If you are not comfortable performing the relearn procedure, professional installation is recommended.

• Warranty: This product carries a 12-month warranty against manufacturing defects. The motor and sensors are covered for 24 months.

🛠️ Quick Reference Card (for Print/Inclusion)