GMC 12491864 Engine 4.2L 8TH

( Manufacturer Part Number: 12491864 ), ( Manufacturer Warranty: 90 Day ), ( Genuine Oem: Yes ), ( Seller Notes: 4x4, 4.2l, Aot-fl, Runs Good ), ( Interchange Item Code: 300 ), ( Color: Gray ), ( Engine Size: 4.2l ), ( Fuel Type: Gas ), ( Type: Engine Complete Assembly )

Review GMC Used Engine Assembly Fits Xl 4.2l Vins 8th Digit Grade fits ENVOY 2005

The GMC Envoy XL, manufactured in the year 2005, is powered by the 4.2L (252 cubic inches) engine identified by the GM part number 12491864. This engine is an essential component of the vehicle's powertrain, delivering impressive performance and efficiency.

The 4.2L engine is a V8 design, meaning it has eight cylinders arranged in a V-shape. It boasts an aluminum block and cylinder heads, contributing to its lightweight yet robust construction. The engine is capable of producing a maximum horsepower of 275 at 5200 rpm and a maximum torque of 305 lb-ft at 4000 rpm. This power output translates to a responsive and spirited driving experience.

The engine features a sequential multi-port fuel injection system, which optimizes fuel delivery for improved combustion efficiency and reduced emissions. The engine also includes a double-overhead camshaft design, which enhances valve control for better power output and smoother engine operation.

The 2005 GMC Envoy XL's 4.2L engine is mated to a Hydra-Matic 4L60-E 4-speed automatic transmission, ensuring seamless power delivery to the vehicle's all-wheel-drive system. This transmission is known for its durability and reliability, making it an excellent choice for the Envoy XL.

The 8th digit in the VIN (vehicle identification number) confirms that this engine was installed at the factory during the assembly of the 2005 GMC Envoy XL. This information is essential for anyone seeking to ensure the authenticity and originality of their vehicle's powertrain components.

In summary, the 2005 GMC Envoy XL's 4.2L engine, identified by GM part number 12491864, is a robust and powerful V8 engine that delivers impressive performance and efficiency. Its advanced features, such as aluminum construction, sequential multi-port fuel injection, and double-overhead camshaft design, make it a top choice for those seeking a reliable and capable driving experience.

The GMC Envoy XL 4.2L engine with the VIN number 1G1AY22P88A112491864, produced in the 8th assembly plant, is a gasoline-powered vehicle engine. Here are some pros and cons that might help you make an informed decision about purchasing this engine.

1. Power and Performance: This engine delivers a good amount of power and torque, making it suitable for towing and off-road activities.

2. Durability: The 4.2L engine is known for its durability and reliability. It can handle heavy use and rough conditions.

3. Fuel Efficiency: Compared to other V8 engines, the 4.2L engine is relatively fuel-efficient.

4. Resale Value: The Envoy XL with the 4.2L engine has a decent resale value, which could make it a good investment.

1. Emissions: This engine does not meet the latest emissions standards and may require modifications to pass emissions testing.

2. Maintenance Costs: The 4.2L engine can be expensive to maintain due to its complex design and the use of uncommon parts.

3. Fuel Consumption: While it is relatively fuel-efficient for a V8 engine, it still consumes more fuel than smaller engines.

4. Size and Weight: The larger size and weight of the engine may negatively impact fuel economy and handling.

In conclusion, the GMC Envoy XL 4.2L engine with VIN number 1G1AY22P88A112491864 has its advantages and disadvantages. Its power, durability, and decent resale value make it an attractive option for those who need a powerful and reliable engine for towing or off-road activities. However, its emissions issues, high maintenance costs, and fuel consumption may be deal-breakers for some buyers. Ultimately, the decision to purchase this engine depends on your specific needs and priorities. If you need a powerful engine for heavy-duty use and are willing to accept the higher maintenance costs and emissions issues, then this engine may be a good choice for you. However, if fuel efficiency and low maintenance costs are your top priorities, then you may want to consider other engine options.

Details:

Flush or replace transmission cooler and lines. This part may have accessories that are attached and must be removed or switched for proper installation. The words un examined or unchecked on the delivery note/docket are not acceptable. Warranty is valid to original purchaser only.

All the above installation should be in accordance with manufacturer guidelines including proper quantity and fill levels of fluids any technical service bulletins updates. Warranty is contingent upon oil and filter change per manufacturers specifications as to type at installation every 5,000 kilometres thereafter. Every part is cleaned, tested and inspected by experts. Transmissions: Replace the following with new parts: front pump and output shaft seals, pan gaskets filter.

All parts are covered by our 30-Day Money-Back Guarantee. Unless specified as Universal this is a direct fit Engine Complete Assembly. Manual transmissions follow the same procedure as above if applicable. FAQ's: here.

Manufacturer Brand: Color: Position: Fitment Notes. Engine warranty is contingent upon installation of new intake manifold gaskets. Shearing or breaking of teeth in a standard transmission is not warranted under any circumstances. Warranty covers slippage, shifting failures and/or bearing noise.

Adjust shiftier and kick down cables linkage if applicable. Warranty is not transferable. Failure caused by or related to collisions, theft, vandalism any act of God. Engine installations follow the procedures: Replace following parts if applicable: timing belt, water pump, thermostat, spark plugs, fluids, oil pan gasket, and filter.

Clear all computer fault codes. This part fits vehicles made in the following years 2005. B Failure caused by towing a trailer unless your vehicle is rated the manufacturer for.

part #: 12491864 prices

• $560.00-$937.50

specifications grokengines:

• for models: Envoy
• for makes: Gmc
• for years: 2005
• mpn: 12491864
• manufacturer warranty: 90 Day
• genuine oem: Yes
• seller notes: 4x4, 4.2l, Aot-fl, Runs Good
• interchange item code: 300
• color: Gray
• engine size: 4.2l
• fuel type: Gas
• type: Engine Complete Assembly

shipping grokengines:

• transit: 15-20 Days
• cost: $0.00
• type: Fixed
• class: Freight
• service: Flat Rate Freight

payments grokengines:

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

offer grokengines:

• started: June 12, 2025
• quantity: 1
• options: Ship-to-home
• availability: In Stock
• sold: 0
• best offers: True

returns grokengines:

• time: 60 Days
• policy: Returns Accepted
• paid by: Seller

seller grokengines:

• rating: 97.5%
• # reviews: 524
• city: Bloomfield, Iowa

general grokengines:

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

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