CHEVROLET 5AKH Transmission Diesel 6.6L MW7

( Manufacturer Part Number: 5AKH ), ( Vintage Part: No ), ( Type: Automatic Transmission ), ( Condition And Options: At; 6.6l, 4x4 ), ( W/model Year Break Point: Opt Avf ), ( Country Of Origin: Canada )

Review CHEVROLET Transmission At 6.6l Diesel Mw7 Id fits SILVERADO SIERRA 2500 6SPD 2015–2016

The **2015-2016 Chevrolet Silverado 2500HD Sierra** with the **6.6L Duramax Diesel (MW7) paired with a 6-speed automatic transmission** represents the pinnacle of heavy-duty truck engineering, blending rugged capability with refined performance for those who demand both power and reliability. Engineered to tackle the toughest jobs while delivering a smooth, responsive ride, this diesel powerhouse is built on a **DuraCoat galvanized frame** and a **high-strength steel unibody**, ensuring unmatched durability against corrosion and stress. The **6.6L Duramax MW7** is a masterpiece of diesel engineering, featuring a **turbocharged, intercooled, common-rail fuel system** that delivers a staggering **379 horsepower and 650 lb-ft of torque**, allowing it to effortlessly haul heavy loads, tow massive trailers, or accelerate with brute strength when needed. The **6-speed automatic transmission** is meticulously tuned to work in harmony with the engine, providing seamless shifting and optimal power delivery, whether cruising on the highway or navigating rough terrain. Equipped with **Diesel Exhaust Fluid (DEF) compliance**, this truck meets stringent emissions standards without sacrificing performance, making it ideal for both commercial and personal use. Inside, the cabin is designed with **premium materials and ergonomic controls**, offering a comfortable yet functional workspace with features like **power-adjustable seats, a 7-inch touchscreen infotainment system, and available heated front seats** for year-round comfort. The **off-road prowess** of this Silverado is further enhanced by **standard four-wheel drive (4WD) with a locking rear differential**, ensuring superior traction in challenging conditions. Whether you're a contractor, a weekend warrior, or someone who simply appreciates the marriage of power and precision, the **2015-2016 Chevrolet Silverado 2500HD Sierra with the 6.6L Duramax and 6-speed transmission** stands as a testament to Chevrolet s commitment to building trucks that are as capable as they are dependable.

### **Pros and Cons of Buying a 2015-2016 Chevrolet Silverado 2500HD/Sierra 2500HD (6.6L Duramax Diesel, 6-speed, MW7 Transmission)**

#### **Pros**

1. **Strong Diesel Engine (6.6L Duramax)**

- The 6.6L Duramax is a robust, turbocharged diesel known for reliability and torque (379 lb-ft in 2015, 400 lb-ft in 2016).

- Excellent for towing (up to 12,000 13,000 lbs with proper setup) and hauling.

- Fuel efficiency is better than most gas trucks in its class (12 18 MPG combined, depending on load).

2. **6-Speed Automatic Transmission (6L90 or 6L70, depending on year)**

- Smooth shifting compared to older 4-speed diesels.

- Better fuel economy and towing performance than manual transmissions.

- The MW7 (2016) is an improved version with better shift quality and durability.

3. **Durability and Longevity**

- The Duramax 6.6L is well-regarded for lasting 300,000 miles with proper maintenance.

- Strong frame and suspension for heavy-duty use.

- Many owners report few major issues if the engine and transmission are well-maintained.

4. **Towing and Payload Capacity**

- One of the best diesel trucks for heavy-duty work, capable of pulling large trailers and carrying significant payloads.

- Available heavy-duty suspension and brakes (when properly upgraded) enhance towing stability.

5. **Resale Value**

- Duramax trucks hold their value better than many gas-powered trucks, especially in the heavy-duty segment.

- Diesel engines are still in demand for work and off-road use.

6. **Availability of Parts and Support**

- GM has a strong dealer network for Duramax service and parts.

- Aftermarket support is strong, with many performance and maintenance options available.

7. **Comfortable Cabin**

- Spacious interior with good seating for long drives.

- Available features like heated seats, leather upholstery, and modern infotainment (in higher trims).

---

#### **Cons**

1. **Higher Maintenance Costs**

- Diesel engines require more frequent and expensive maintenance than gas engines (e.g., fuel filters, injectors, turbo upgrades).

- The MW7 transmission (2016) is better but still more complex than a gas automatic.

2. **Common Issues with the 6.6L Duramax**

- **Fuel Injectors:** Known for failing prematurely (especially in 2015 models), requiring expensive replacements ( $1,500 $2,500).

- **Turbocharger Failures:** Some owners report turbo issues, especially if the truck is heavily towed or driven aggressively.

- **Exhaust Manifold Cracks:** A common problem in early Duramax models, leading to leaks and reduced performance.

- **DPF (Diesel Particulate Filter) Clogging:** Modern diesels are sensitive to fuel quality; poor fuel can cause DPF issues, requiring cleaning or replacement.

3. **Transmission Concerns**

- Some 6-speed transmissions (especially 6L90 in 2015) have had reports of rough shifting or failure, particularly under heavy loads.

- The MW7 (2016) is an improvement but still not as bulletproof as a gas automatic.

4. **Fuel and Emissions Compliance**

- Diesel fuel quality varies by region, and some stations may not provide clean enough fuel for the DPF and SCR systems.

- DEF (Diesel Exhaust Fluid) is required for emissions compliance, adding to operating costs.

5. **Noise and Vibration**

- The Duramax can be louder and more vibration-prone than gas engines, especially at higher RPMs.

- Some owners report a "clunking" noise from the exhaust manifold or transmission.

6. **Higher Purchase Price**

- Diesel trucks are more expensive upfront than comparable gas models.

- Used Duramax trucks in good condition can still be pricey, especially with low miles.

7. **Limited Off-Road Capability (Stock)**

- While capable, the stock Silverado/Sierra is not as off-road ready as some competitors (e.g., Ram 2500, Ford F-250).

- Requires aftermarket upgrades (lift kits, locking differentials, etc.) for serious off-roading.

8. **Rust Concerns**

- Older trucks (especially those from wet climates) may have rust issues, particularly in wheel wells, undercarriage, and frame rails.

---

### **Ending Conclusion**

The **2015-2016 Chevrolet Silverado 2500HD/Sierra 2500HD with the 6.6L Duramax and 6-speed transmission** is a **powerful, capable work truck** that excels in towing, hauling, and longevity **if properly maintained**. It is a **great choice for those who need a heavy-duty diesel for work, construction, or serious off-roading**, provided they are prepared for **higher maintenance costs** and potential **common issues** (fuel injectors, turbo, exhaust manifolds).

However, **buyers must be diligent in inspecting the truck s history** (oil changes, injector replacements, turbo condition) and **budget for potential repairs**. If you find a **well-documented, low-mileage example with a clean service record**, it can be an **excellent long-term investment**. If you re not prepared for diesel-specific maintenance, a **gas-powered heavy-duty truck** (like a Ram 2500 Cummins or Ford F-250 Power Stroke) might be a more straightforward alternative.

---

### **Recommendation**

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

- You are **willing to budget for maintenance** (fuel injectors, turbo, DPF, DEF).

- You find a **truck with a verified service history**, preferably **under 100,000 miles**.

- You plan to **keep it for 10 years** and maintain it properly.

- You **cannot afford unexpected repairs** (diesel engines are not "set it and forget it").

- You **don t have access to clean diesel fuel** (DPF clogging is a major issue in poor fuel areas).

- You **prefer lower maintenance** and are not committed to diesel-specific upkeep.

- You **don t need the towing/payload capacity** of a diesel and would be better suited with a gas truck.

**Final Verdict:** This truck is a **fantastic workhorse for the right buyer**, but it requires **smart purchasing, regular maintenance, and financial preparedness** for its quirks. If you re serious about diesel power and willing to put in the effort, it s a **solid long-term purchase**. Otherwise, consider alternatives like the **Ram 2500 Cummins (2014 ) or Ford F-250 Power Stroke**, which may be more user-friendly.

Details:

Make / model: CHEVROLET SILVERADO 2500 PICKUP. Always double check compatibility. Each Transmission is quality checked by our experienced dismantle technicians and mechanics before they are priced listed.

James Auto Truck Parts adheres to the strict Gold Seal Code of Ethics. Regarding engines, accessories such as alternators, starters, water pump, intake and exhaust manifolds, fuel injectors, carburetor, flywheel, brackets, oil pressure switches, thermostats, smog emission devices, turbos, high pumps, injector timing belts are complimentary do not necessarily come with the engine. 6.6L AT 6SPD 4X4 MW7. Every measure is taken to ensure the parts are of highest quality and in condition described or better upon receipt.

James Auto Truck Parts Mission Statement: St. Stock Number: 00019950. Color: Black. Odometer: 148720 Miles.

If you encounter an issue, contact your Sales Representative BEFORE remove the part from vehicle.

part #: 5akh prices

• $594.99-$1892.10

specifications autotransmissionsgo:

• for models: 2500, 6spd, Silverado, Sierra
• for makes: Chevrolet
• for years: 2015-2016
• mpn: 5akh
• vintage part: No
• type: Automatic Transmission
• condition and options: At; 6.6l, 4x4
• w/model year break point: Opt Avf
• country of origin: Canada

general autotransmissionsgo:

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

shipping autotransmissionsgo:

• type: Fixed
• service: Flat Rate Freight
• cost: $350.00
• class: Freight

offer autotransmissionsgo:

• availability: In Stock
• started: April 20, 2026
• best offers: True
• sold: 0
• options: Ship-to-home
• quantity: 1

seller autotransmissionsgo:

• rating: 100.0%
• city: Saint James, Missouri
• # reviews: 7417

payments autotransmissionsgo:

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

returns autotransmissionsgo:

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

Chevrolet 5AKH Is Similar To:

• 09 Chevrolet Tahoe Automatic Transmission (44.1% similar) Install new spark plugs wires. Fill trans with manufacture specified fluid. Transmission installation procedures prior to of your used we require these steps be taken for warranty valid. Pre-installation requirements: replace all seals. Clear all transmission computer codes prior to starting or ...(September 6th, 2017)
• 0mhw 0mxw 24256840 Chevrolet Transmission-transaxle (36.5% similar) Transmission trans axle 2010 equinox 6 month warranty. Slides are not covered under warranty column switch: includes wiring if applicable up to the first point it can be unplugged control arm: ball joint and any bushings coolant overflow bottle: cap is included cowl vent panel: see our part notes...(April 20th, 2017)
• Chevrolet 100 Hhr Mn5 11b3707 2.2l Vue Transmission 06 07 Saturn (41.3% similar) This item will come exactly as described unless stated otherwise. Kosciusko auto 5040 I street Omaha, NE model chevrolet HRH 2006 stock number 11B3707 odometer 93,316 part comments AT,2. 2l opt L61 all fluid and retention seals must be replaced to assure warranty please verify this part will fit ...(March 2nd, 2015)
• Automatic Miles 2004 Chevrolet 0 Buick Oem 4sdd Transmission Gmc 12491882 (39% similar) Class thumb resize inmost FDA this. 2004 chevrolet GMC Buick automatic transmission 4SDD new miles oem class thumb resize inmost FDA this. Please for a quote. Coming soon. If an item arrives damaged, please via message within 24 hours for instructions. Expedited shipping is available. Class thumb ...(February 14th, 2015)
• 125887 Automatic 5.3l Miles 1999 Transmission 4x4 Chevrolet (28.6% similar) This item is in operational condition. This transmission assembly is in operational condition and has been in use until recently when the vehicle was taken off the road due to frame issues which made the vehicle no longer road safe...(August 8th, 2015)
• 1398041 98 Pickup Chevrolet 7.4l Reman 99k Transmission 2500 97 (41.6% similar) Ask any and all questions before the you purchase. FAQ q can I buy this whole vehicle a sorry, but you cannot. This is a parts replacement warranty only. Q I see a different part on this vehicle that I would like to buy. Warranty requirements install new filter kit replace front seals replace axle ...(November 4th, 2014)
• TRANSMISSION ASSY CHEVROLET 1500 SILVERADO PICKUP 01 13G-01 (10.9% similar) 3L, 4X2, ext CAB,5. 3L,4L60 please have access to lift gate to unload the pallet...(June 5th, 2014)
• 14004878 Oem Chevrolet Gm Speed Saginaw Transmission Cluster Gear Ratio (45.9% similar) No issues ,no chips in reverse, nice internal bore showing wear on any of the helical teeth. Tooth count large nice used mates only with a 3 groove input Saginaw 4 speed cluster...(August 10th, 2018)
• Assy Chevrolet 80 14a-62 Impala 05 Up Transmission (43.8% similar) ...(August 12th, 2014)
• 156-89 Chevrolet Tahoe Escalade Silverado Transmission Case Hybrid Only (52.2% similar) There is no return. This transmission only fit the hybrid Tahoe Escalade Silverado 2008 and automatic AWD with transfer case off in good working condition. Please look at all pictures before buying...(May 3rd, 2018)
• 17804122 Chevrolet Silverado Automatic Transmission Assembly (53.4% similar) Free shipping is to commercial address only. Normal wear and tear. Contact your local dealer or mechanic to insure compatibility. Transmission only the transfer case and engine are not included. Item might fit other makes and model's...(June 27th, 2018)