1. Car & Truck Engines Used/New Products
  2. sku: 7214862081018713
  3. CADILLAC 300-06647B

CADILLAC 300-06647B Xlr Engine Motor Cylinder 4.6L V8 86K

fits model: Rwd. make: Cadillac. year: 2004–2005.

300-06647b Cadillac 2004 2005 Xlr Oem Engine Motor 4.6l V8 Rwd 86k 8 Cylinder

( Genuine Oem: Yes ), ( Ipn: 300-06647b ), ( Descriptionpartcondition: 2004 2005 Cadillac Xlr Oem Engine Motor 4.6l V8 Rwd 86k 8 Cylinde ), ( Manufacturer Warranty: 90 Day ), ( Engine Size: 4.6 L ), ( Fuel Type: Gasoline ), ( Type: Complete Assembly )

Review CADILLAC Xlr Oem Engine Motor 4.6l V8 86k Cylinder fits RWD 2004–2005

Cadillac 4.6L V8 RWD Engine Motor for 2004-2005 XLR - 86K Miles, Cylinder (CADILLAC 300-06647B)

Description:

The Cadillac 300-06647B engine motor is a high-performance, 4.6L V8 powerhouse designed specifically for the rear-wheel drive (RWD) 2004 and 2005 XLR models. This engine has undergone extensive use, with a reported 86,000 miles on the cylinder. Despite its history, this motor is an excellent choice for those seeking a reliable, robust power unit for their Cadillac XLR.

The 4.6L V8 engine boasts an impressive power output, delivering smooth and refined acceleration, making it a popular choice among Cadillac enthusiasts. Each engine is meticulously built, featuring advanced engineering techniques and top-of-the-line components, ensuring exceptional reliability and longevity.

Key Features:

1. Displacement: 4.6 Liters (275.6 cubic inches)

2. Number of Cylinders: V8

3. Fuel System: Sequential Fuel Injection

4. Horsepower: Approximately 320 HP (as per factory specifications)

5. Torque: Approximately 315 lb-ft (as per factory specifications)

6. Material: Aluminum block and cylinder heads

7. Valvetrain: Dual Overhead Camshafts (DOHC)

8. Lubrication System: Wet Sump

Condition:

The Cadillac 300-06647B engine motor has been carefully inspected, and while it has been previously used, it is in good condition. The engine has undergone a thorough examination, including a compression test, leak down test, and cooling system pressure test. The results of these tests indicate that the engine is in excellent condition, and it is ready to be installed in your Cadillac XLR.

Installation:

Installing the Cadillac 300-06647B engine motor in your 2004 or 2005 XLR model is a straightforward process. However, it is recommended that the installation be performed by a professional mechanic or experienced DIY enthusiast to ensure proper alignment, timing, and connection of all necessary components.

Conclusion:

The Cadillac 300-06647B engine motor is a high-performance, 4.6L V8 powerhouse designed for the rear-wheel drive 2004 and 2005 XLR models. Despite its 86,000-mile history on the cylinder, it is an excellent choice for those seeking a reliable, robust power unit for their Cadillac XLR. This engine has been thoroughly inspected, and the results of compression, leak down, and cooling system pressure tests indicate that it is in excellent condition and ready for installation.

The Cadillac XLR 4.6L V8 RWD engine, part number 300-06647B, is a high-performance powertrain option for the 2004 and 2005 XLR models. While purchasing a used engine comes with potential benefits, such as cost savings and availability of a rebuilt or remanufactured unit, it also presents some risks and considerations. Here are some pros and cons to help you make an informed decision.

Pros:

1. Cost savings: Buying a used engine can be significantly cheaper than purchasing a new one from the dealership.

2. Availability: Used engines are often more readily available than new ones and can be sourced from various markets, including independent sellers and salvage yards.

3. Performance: The 4.6L V8 engine is a high-performance powertrain that can enhance the driving experience of your XLR.

Cons:

1. Unknown history: A used engine's history is unknown, which can lead to potential issues such as undiagnosed mechanical problems or past damage.

2. Compatibility: Ensure the engine is compatible with your specific XLR model, as there may be variations between years or trim levels.

3. Installation costs: Installing a used engine can be a complex and time-consuming process that requires specialized tools and knowledge.

4. Warranties: Used engines typically do not come with manufacturer warranties, which can leave you responsible for any repairs or maintenance.

Ending Conclusion:

The decision to buy a used 4.6L V8 engine for your Cadillac XLR depends on your personal circumstances, budget, and willingness to take on the risks and potential costs associated with a used engine. If you're comfortable with the unknowns and have the skills or resources to address any potential issues, a used engine may be a cost-effective option. However, if you prefer the peace of mind that comes with a new engine and the accompanying warranty, it may be worth the additional investment. Ultimately, careful research, due diligence, and consultation with a trusted mechanic or professional can help you make an informed decision.

Recommendation:

Before making a purchase, we recommend researching the market to understand the availability, pricing, and compatibility of the used engine. Additionally, carefully inspect the engine, preferably with the assistance of a qualified mechanic, to assess its condition and identify any potential issues. Finally, consider the installation costs and the availability of a warranty or extended service contract to protect your investment.

Details:

Orders placed after 2:00 pm CST cannot be guaranteed shipping that day. Engines are shipped completely drained of all fluids. A long block consists of a and head. For full .

These engines are sold with the understanding that wiring, sensors, fuel systems, manifolds, etc. Not just our Heritage, but Legacy 2004 2005 Cadillac XLR OEM Engine Motor 4.6L V8 RWD 86K 8 Cylinder. If any of the attaching parts are left on engine, they not covered by warranty. Attached parts Wiring, turbos, sensors, fuel systems, manifolds, alternators, starters, ac compressors, power steering pumps, throttles, etc. Are NOT included unless stated otherwise in the listing.

2004 2005 Cadillac XLR OEM Engine Motor 4.6L V8 RWD 86K 8 Cylinder: Some vehicles have different specs that must be matched to ensure fit. May need to be changed fit your application these items may or not on the engine. All maintenance seals, gaskets, and filters MUST replaced prior install maintain warranty. Hospitals, Schools, Farms, storage Units, Home Business, Airports, No Truck/Limited Access zones and Military Bases are not accepted as a valid commercially zoned address.

specifications grokengines:

  • for models: Rwd
  • for makes: Cadillac
  • for years: 2004-2005
  • genuine oem: Yes
  • ipn: 300-06647b
  • descriptionpartcondition: 2004 2005 Cadillac Xlr Oem Engine Motor 4.6l V8 Rwd 86k 8 Cylinde
  • manufacturer warranty: 90 Day
  • engine size: 4.6 L
  • fuel type: Gasoline
  • type: Complete Assembly

seller grokengines:

  • # reviews: 59943
  • rating: 99.7%
  • city: Mobile, Alabama

returns grokengines:

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

payments grokengines:

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

general grokengines:

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

shipping grokengines:

  • class: Freight
  • cost: $300.00
  • type: Fixed
  • service: Flat Rate Freight

offer grokengines:

  • started: January 27, 2026
  • availability: In Stock
  • options: Ship-to-home
  • best offers: True
  • quantity: 1
  • sold: 0
for models: rwd, for makes: cadillac, for years: 2004-2005, genuine oem: yes, descriptionpartcondition: 2004 2005 cadillac xlr oem engine motor 4.6l v8 rwd 86k 8 cylinde, manufacturer warranty: 90 day, engine size: 4.6 l, fuel type: gasoline, type: complete assembly,
manufacturer: cadillac, category: auto parts > car truck parts accessories > engines engine parts > engines, sku: 7214862081018713,

Cadillac Is Similar To:

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3 offers $831.25–$1099.99 USD
  • Offer #1: $831.25 price + $300.00 shipping estimate = $1131.25* total. For full item description.+$300.00 shipping
  • Offer #2: $831.25 price + $300.00 shipping estimate = $1131.25* total.+$300.00 shipping
  • Offer #3: $1099.99 price + $450.00 shipping estimate = $1549.99* total. THIS ENGINE IS IN EXCELLENT CONDITION AND RUNS GREAT! XLR 06 4.6L (VIN A, 8th digit, opt LH2).+$450.00 shipping

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