CHEVY 71399 Transmission Pan 090127107720

( Brand: Chevy ), ( Manufacturer Part Number: 71399 ), ( Part Type: Transmission ), ( Color: Black ), ( Country Of Origin: Ships From The Us ), ( Features: Deep ), ( Fitment Type: Performance/custom ), ( Manufacturer Warranty: 1-year B M Limited Warranty ), ( Material: Aluminum ), ( Notes: Include Bolt/studs, Drain Plug, Mounting Hardware ), ( Part Name: Transmission Pan ), ( Performance Part: No ), ( Quantity: Sold Individually ), ( UPC: 090127107720 ), ( Warranty: 1 Year )

Review CHEVY Transmission Pan Chevrolet Truck Gmc fits SILVERADO SIERRA 1500

The **71399 Transmission Pan for Chevrolet Silverado 1500 and GMC Sierra (2007 2013, 6.0L V8, 6L90/6L70 Transmission)** is a precision-engineered, high-quality replacement part designed to ensure optimal performance, durability, and reliability for your full-size pickup truck. Crafted from heavy-duty, stamped steel, this transmission pan features a robust construction that resists warping and deformation under the demanding conditions of heavy-duty towing, hauling, and daily driving. The pan is meticulously machined to fit seamlessly with the 6L90 and 6L70 transmission cases, providing a secure, gasket-free seal when paired with the correct transmission fluid and gasket kit, reducing the risk of leaks and contamination. Its reinforced design includes strategically placed ribs and structural reinforcements to enhance rigidity, ensuring that it maintains its shape even after repeated fluid changes or extended use. This pan is compatible with both the **6L90 (6-speed automatic)** and **6L70 (6-speed automatic)** transmissions found in the 2007 2013 Chevrolet Silverado 1500 and GMC Sierra models equipped with the **6.0L Vortec V8 engine**, making it a versatile and essential component for transmission maintenance and rebuilds. Whether you're performing a routine fluid change, a full transmission flush, or a complete overhaul, this pan delivers the strength and precision needed to keep your transmission running smoothly while protecting it from the harsh elements of heavy-duty operation. Its compatibility with aftermarket and OEM transmission fluid systems ensures compatibility with a wide range of maintenance routines, and its durable construction helps extend the lifespan of your transmission by preventing fluid leaks and contamination. Investing in this transmission pan is a proactive step toward maintaining the longevity and performance of your Silverado or Sierra, ensuring that your vehicle remains reliable for years of dependable service.

### Pros and Cons of Buying a **71399 Transmission Pan for Chevrolet Silverado 1500 / GMC Sierra**

1. **Direct Fitment** The **71399** is the original equipment (OEM) part number for the **6L80/E4OD transmission** found in the **2011 2020 Chevrolet Silverado 1500 and GMC Sierra** (with the 6.2L V8 or 6.6L Duramax diesel). This ensures a perfect fit without modifications.

2. **High-Quality Material** OEM parts are typically made from durable steel or aluminum, designed to withstand heavy loads and extreme temperatures, reducing the risk of leaks or warping over time.

3. **Warranty Coverage** Purchasing from a reputable dealer or manufacturer (such as **Chevrolet, GM, or a trusted aftermarket supplier**) may include a warranty, offering protection against defects.

4. **Compatibility with OEM Parts** Since it s the genuine part, it works seamlessly with **OEM gaskets, bolts, and transmission fluid**, ensuring proper sealing and performance.

5. **Long-Term Reliability** The **6L80/E4OD** transmission is known for durability, and using the correct pan helps maintain its longevity, reducing the need for frequent fluid changes or repairs.

6. **Easier Installation** Being the original part, it aligns perfectly with the transmission housing, making installation straightforward for mechanics with basic tools.

7. **Resale Value** If you later decide to sell or trade in your vehicle, having OEM components can be a selling point for buyers who prefer factory parts.

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1. **Higher Cost** OEM transmission pans are more expensive than aftermarket alternatives, often costing **$100 $200** depending on the source. Aftermarket versions may be **30 50% cheaper** for similar quality.

2. **Potential Counterfeit Risks** If buying from untrusted sellers (e.g., eBay, Facebook Marketplace, or unknown online stores), there s a risk of receiving **fake or low-quality parts** that fail prematurely.

3. **Longer Lead Times** OEM parts may take **weeks to arrive**, especially if ordering directly from GM or authorized dealers. Aftermarket options often ship faster.

4. **Overkill for Minor Repairs** If you re only replacing the pan due to a **minor leak** (e.g., a cracked gasket) and not performing a **full transmission service**, an aftermarket pan may suffice at a lower cost.

5. **Weight Consideration** Some aftermarket pans are **lighter** than OEM versions, which can slightly improve fuel efficiency in extreme cases, though the difference is negligible in most applications.

6. **Potential for Over-Tightening** Since it s a precise fit, inexperienced installers may **over-tighten bolts**, leading to warping or damage to the transmission housing.

7. **Environmental & Ethical Concerns** OEM parts contribute to **new manufacturing demand**, whereas aftermarket or remanufactured parts may be more sustainable if sourced responsibly.

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### **Conclusion & Recommendation**

- You prioritize **long-term reliability, warranty coverage, and a perfect fit** for your **2011 2020 Silverado 1500/GMC Sierra**.

- You re performing a **full transmission service** (fluid change, filter replacement, filter replacement) and want to ensure all components are OEM.

- You have **access to a trusted supplier** (GM dealership, RockAuto, Summit Racing, or a reputable online retailer).

- You re willing to pay the **premium price** for peace of mind.

- You re on a **tight budget** and the pan is the only component needing replacement.

- You re comfortable with **removing and reinstalling the transmission** yourself (aftermarket pans often come with clear instructions).

- You re buying from a **well-reviewed seller** (e.g., **RockAuto, Summit Racing, or a local auto parts store with return policies**).

- You re replacing the pan due to a **specific issue** (e.g., a cracked gasket) rather than a full rebuild.

For most **DIY mechanics or budget-conscious buyers**, an **aftermarket pan (e.g., Mopar 20540000 or ACDelco 12040000)** is a **cost-effective, high-quality alternative** that performs nearly as well as the OEM part. However, if you re doing a **full transmission service or prefer factory parts**, the **71399 is the safest and most reliable option**.

- **OEM:** GM Dealership, **RockAuto, Summit Racing** (may require ordering through a dealer).

- **Aftermarket:** **RockAuto, Summit Racing, Amazon (verified sellers), or local auto parts stores** (check reviews for authenticity).

- Always **replace the gasket** (OEM or high-quality aftermarket) and **torque bolts to spec** (typically **20 25 ft-lbs** for the pan bolts).

- **Drain old fluid completely** before refilling with **new transmission fluid** (GM Dexron VI for 6L80, or **6.6L Duramax-specific fluid** if applicable).

- If unsure, consult a **professional mechanic** for installation, especially if you ve never worked on transmissions before.

Details:

Increased Cooling Properties. Includes detailed instructions with all necessary hardware for an easy at-home installation. All these features combined help dissipate heat quicker netting lower transmission and fluid temperatures prolonging the life of your transmission, fluid, corresponding components. Drain Port with Magnetic Plug for Easy Servicing.

Also includes a 1/8 inch NPT temperature sensor port for easily adding temp gauge monitoring transmission temperatures while daily driving, towing, or racing. B M Racing Performance paved the way for racers back in 50s with aftermarket sifters, enhanced performance transmissions and torque converters that made everyone faster, is now considered a world leader automotive. Durable A356-T6 Aluminum Construction. Includes Fluid Pickup Extension Gasket.

Other features of this popular pan include a filter extension, gasket, and drain port with magnetic plug for clean easy servicing. The deep pan design increases fluid capacity by 4 quarts over the stock.E. Includes Sensor Temperature Port.

part #: 71399 prices

• $528.95-$587.95

specifications autotransmissionsgo:

• for models: 1500, Silverado, Sierra
• for makes: Chevy, Chevrolet, Gmc
• brand: Chevy
• mpn: 71399
• part type: Transmission
• color: Black
• country of origin: Ships From The Us
• features: Deep
• fitment type: Performance/custom
• manufacturer warranty: 1-year B M Limited Warranty
• material: Aluminum
• notes: Include Bolt/studs, Drain Plug, Mounting Hardware
• part name: Transmission Pan
• performance part: No
• quantity: Sold Individually
• upc: 090127107720
• warranty: 1 Year

general autotransmissionsgo:

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

payments autotransmissionsgo:

• wallet: Apple-pay
• credit card: Mastercard
• other

shipping autotransmissionsgo:

• class: Standard
• type: Fixed
• transit: 3-7 Days
• service: Standard
• cost: $0.00

offer autotransmissionsgo:

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

returns autotransmissionsgo:

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

seller autotransmissionsgo:

• rating: 99.4%
• city: 48 States Only, USA
• # reviews: 330187

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