GMC 12698734 Gas Ecoteck Engine Motor 3563AA2 5.3L V8 16V 90K

( Manufacturer Part Number: 12698734 ), ( Items Included: Cylinder Head ), ( Vintage Part: No ), ( Fuel Type: Gasoline ), ( Type: Complete Assembly ), ( Ipn: 3563aa2 ), ( Engine Size: 5.3 L ), ( Number Of Valves: 16 )

Review GMC 5.3l V8 Ohv Gas Ecoteck Engine Motor 90k Oem fits YUKON 2015–2020

Introducing the GMC Yukon 5.3L V8 16V Gas Ecotech Engine Motor, a powerful and efficient solution for your 2015-2020 Yukon. This engine motor, identified by the part number 12698734, is a key component of your vehicle's powertrain and is designed to deliver impressive performance and fuel economy.

The 5.3L V8 engine is known for its robustness and reliability, and this Ecotech version takes it a step further by incorporating advanced technologies that help improve fuel efficiency without compromising power. The 16-valve design ensures optimal air and fuel mixture for efficient combustion, while the variable valve timing system allows for greater adaptability to various driving conditions.

The Ecotech engine is equipped with several features that help enhance its performance and durability. It boasts a forged crankshaft and connecting rods, as well as aluminum cylinder heads, which contribute to its impressive strength and longevity. Additionally, it comes with a high-performance intake manifold and exhaust system, which help optimize airflow and improve engine response.

When it comes to maintenance, this engine motor is a breeze to work on, thanks to its easily accessible components and user-friendly design. With a recommended service interval of 90,000 miles, this engine is built to last and provide reliable service for thousands of miles.

In summary, the GMC Yukon 5.3L V8 16V Gas Ecotech Engine Motor (part number 12698734) is a high-performing and efficient powertrain component that delivers impressive power and fuel economy for your 2015-2020 Yukon. Its advanced technologies, robust design, and accessible maintenance features make it a smart choice for drivers who demand both performance and reliability from their vehicles.

Pros and Cons of Buying a 2015-2020 GMC Yukon 5.3L V8 ECotech Engine (Motor Number: 12698734) with 90,000 Miles

The GMC Yukon is a popular full-size SUV known for its powerful engines, spacious interior, and robust build. One of the engines available for this model is the 5.3L V8 ECotech engine, which comes with the motor number 12698734 and has approximately 90,000 miles on it. In this article, we will discuss the pros and cons of buying such a used engine to help you make an informed decision.

1. Reliable and Durable: The 5.3L V8 engine is known for its durability and reliability. It has proven itself to be a workhorse in the GMC Yukon and other GM vehicles.

2. Fuel Efficiency: The ECotech engine is an advanced version of the 5.3L V8 engine, which provides better fuel efficiency compared to its predecessors. This can result in cost savings on gasoline.

3. Power and Performance: The V8 engine delivers impressive power and torque, making the Yukon a capable and responsive vehicle.

4. Availability and Affordability: Used engines like the 12698734 5.3L V8 ECotech can be more affordable than purchasing a new engine or an entirely new vehicle.

1. Potential Maintenance Costs: As with any used engine, there is a risk of unexpected maintenance or repairs. The age and mileage of the engine may increase the likelihood of issues.

2. Emissions Compliance: Older engines may not meet the latest emissions standards, which could result in additional costs for modifications or upgrades.

3. Depreciation: If you plan to sell the engine or the vehicle in the future, the age and mileage of the engine could negatively impact its value.

4. Limited Warranty: Used engines often come with no or limited warranties, which can leave buyers vulnerable to costly repairs.

Buying a used 5.3L V8 ECotech engine (motor number 12698734) for your 2015-2020 GMC Yukon with 90,000 miles can offer significant savings and the benefits of a reliable and powerful engine. However, it also comes with potential risks such as maintenance costs, emissions compliance, depreciation, and limited warranties. Before making a decision, consider your budget, vehicle usage, and personal preferences to determine if the pros outweigh the cons for your specific situation.

If you decide to purchase a used 5.3L V8 ECotech engine, ensure that you have a reputable mechanic inspect it thoroughly before installation. This will help minimize the risk of unexpected issues and give you peace of mind. Additionally, consider obtaining a reliable extended warranty to protect yourself from potential repairs costs.

Details:

TRANSMISSION: 6 SPEED AUTOMATIC TRANSMISSION. BODY TYPE: SLT SPORT UTILITY 4-DOOR. DONOR VEHICLE: 2019 GMC YUKON. DRIVE TYPE: ALL WHEEL 4WD.

part #: 12698734 price

• $3470.99

specifications grokengines:

• for models: Yukon
• for makes: Gmc
• for years: 2015-2020
• mpn: 12698734
• items included: Cylinder Head
• vintage part: No
• fuel type: Gasoline
• type: Complete Assembly
• ipn: 3563aa2
• engine size: 5.3 L
• number of valves: 16

offer grokengines:

• best offers: True
• quantity: 1
• options: Ship-to-home
• availability: In Stock
• sold: 0
• started: February 7, 2026

general grokengines:

• Car Truck Parts Accessories > Engines Engine Parts > Engines
• condition: Used

returns grokengines:

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

seller grokengines:

• rating: 99.8%
• city: Grawn, Michigan
• # reviews: 42576

shipping grokengines:

• service: Economy
• cost: $500.00
• type: Fixed
• class: Economy
• transit: 4-10 Days

payments grokengines:

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

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