MAZDA 300-66525 Engine 3/5 2.5L 61K

( Manufacturer Part Number: 300-66525 ), ( Vintage Part: No ), ( Fuel Type: Gasoline ), ( Type: Vin, M, 5, 6, 9 ), ( Manufacturer Warranty: 90 Days ), ( Engine Size: 2.5l ), ( Number Of Valves: 16 ), ( Block Type: Straight ), ( Country Of Origin: Japan )

Review MAZDA 3/5 2.5l Engine 61k Miles fits CX-7 CX7 2010–2014

The Mazda CX-7 is a compact crossover SUV manufactured by Mazda between 2006 and 2012. For the model years 2010, 2011, 2012, and 2013, the CX-7 was equipped with a reliable and efficient 2.5-liter inline-four cylinder gasoline engine, identified by the part number 300-66525. This engine was a significant improvement over its predecessor, offering more power and better fuel economy.

The 2.5-liter engine produces 161 horsepower at 6,000 rpm and 161 lb-ft of torque at 4,000 rpm. It features a DOHC (Double Overhead Camshaft) design, which allows for better combustion efficiency and smoother operation. The engine also comes with Mazda's innovative i-VTEC (intelligent Variable Valve Timing) system, which optimizes valve timing based on engine speed and load to provide maximum power and efficiency.

This engine is known for its strong and durable build quality. It has a cast-iron block and aluminum cylinder head, which helps to keep weight down while providing excellent heat dissipation. The engine also comes with a compact and efficient DOHC intake and exhaust system, which contributes to its impressive power output and responsiveness.

The 2.5-liter engine in the Mazda CX-7 is mated to a six-speed automatic transmission or a six-speed manual transmission, depending on the specific model year and trim level. This transmission provides smooth and efficient power delivery, making for a comfortable and enjoyable driving experience.

The engine has a displacement of 2,487 cc (151.3 cubic inches), with a bore and stroke of 92.0 mm x 89.6 mm (3.6 x 3.5 inches), respectively. It has a compression ratio of 10.0:1, which allows for efficient combustion and good power output.

The 2010-2013 Mazda CX-7 with the 2.5-liter engine has an EPA-estimated fuel economy rating of 20 mpg city and 26 mpg highway for the automatic transmission model, while the manual transmission model achieves 21 mpg city and 27 mpg highway. These figures demonstrate the engine's impressive efficiency, making it an excellent choice for those seeking a balance between power and fuel economy.

In summary, the Mazda CX-7 2.5-liter engine, specifically part number 300-66525, is a reliable and efficient powertrain option for the 2010, 2011, 2012, and 2013 model years. It offers strong performance, good fuel economy, and a durable build quality that is appreciated by Mazda enthusiasts. Whether you're commuting to work or embarking on a road trip, this engine is sure to provide you with a satisfying driving experience.

The Mazda CX-7 with the 2.5L engine, produced between 2010 and 2014, is a compact crossover SUV that offers a balance between style, performance, and practicality. Here are some pros and cons of buying this particular model:

1. Fuel Efficiency: The Mazda CX-7 is known for its impressive fuel economy. The 2.5L engine delivers an EPA-estimated 22 mpg in the city and 28 mpg on the highway, making it a good choice for those who prioritize fuel economy.

2. Handling: The CX-7 offers agile handling and a responsive steering system, making it a fun and engaging vehicle to drive.

3. Comfortable Cabin: The interior of the CX-7 is spacious and comfortable, with ample legroom and headroom for both the driver and passengers.

4. Reliability: Mazda vehicles have a reputation for being reliable, and the CX-7 is no exception. According to Consumer Reports, the 2010-2013 CX-7 models ranked above average in terms of reliability.

5. Safety: The CX-7 comes standard with a number of safety features, including stability control, traction control, and six airbags.

1. Limited Cargo Space: The CX-7 offers less cargo space than some of its competitors, making it less suitable for those who need to transport large items frequently.

2. Power: The 2.5L engine may not provide the level of power some drivers desire, particularly when towing or carrying heavy loads.

3. Ride Comfort: The CX-7's suspension system can be quite firm, which may result in a less comfortable ride for some passengers, particularly on rough roads.

4. Infotainment System: The CX-7's infotainment system can be outdated and difficult to use, particularly for those who are accustomed to more advanced systems.

In conclusion, the Mazda CX-7 with the 2.5L engine offers a balance of fuel efficiency, handling, comfort, reliability, and safety. However, it may not be the best choice for those who require a lot of cargo space or frequent towing capabilities. Additionally, the infotainment system may be a drawback for some buyers.

If you prioritize fuel efficiency and a fun driving experience, the Mazda CX-7 with the 2.5L engine may be a good choice for you. However, if you require a lot of cargo space or frequent towing capabilities, you may want to consider other options in the compact crossover SUV market. Ultimately, it's important to weigh the pros and cons carefully and test drive the vehicle before making a decision.

Details:

No warranty is provided for any such parts that are attached, including as switches, sensors, cables, injectors, electronics, belts including timing belt/chain, hoses, water pumps, manifolds and oil pans. 90 Day Replacement Warranty. MAZDA 3, 5, CX-7 2.5L ENGINE - 2010 - 2014. Add $80 for Lift Gate Delivery, $100 Diesel Engine Delivery.

Insure this engine is the same application as one being replaced. Install new thermostat gasket. Replace engine oil, oil filter, air fuel filters, coolant-antifreeze. Inspect and replace gaskets seals front seal, rear main valve cover gaskets, oil pan.

Exchange attached accessory items to insure proper fit mounts, intake manifold, exhaust distributor, sensors. Replace water pump. Install and replace timing belt if necessary, your engine has a chain it is set ready for installation. All other parts that may be provided are Accessories and Extra Parts.

Insure the cooling system is flushed and functioning properly. Someone over 18 must be present for delivery. Shipping Details. Daytime phone number is required load will not deliver until appointment scheduled.

Load is curbside delivery ONLY. Drain excess oil and coolant from exhaust system.

part #: 30066525 prices

• $733.20-$899.90

specifications grokengines:

• for models: Cx-7, Cx7
• for makes: Mazda
• for years: 2010-2014
• mpn: 300-66525
• vintage part: No
• fuel type: Gasoline
• type: Vin, M, 5, 6, 9
• manufacturer warranty: 90 Days
• engine size: 2.5l
• number of valves: 16
• block type: Straight
• country of origin: Japan

payments grokengines:

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

offer grokengines:

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

shipping grokengines:

• cost: $359.00
• class: Freight
• service: Flat Rate Freight
• type: Fixed

general grokengines:

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

seller grokengines:

• city: Orlando, Florida
• rating: 100.0%
• # reviews: 2895

returns grokengines:

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

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