LEXUS 300-UNK Engine Motor 2.4L 4CYL

( Part Type: Engine Motor ), ( Engine Size: 2.4 ), ( Ipn: 300-unk ), ( Genuine Oem: Yes ), ( Manufacturer Warranty: 6 Month ), ( Warranty Length: 6 Month Warranty ), ( Partout Id: A-113346908 ), ( Used Engine Mileage Range: Low Mileage , 000 74, 999 Miles )

Review LEXUS 2.4l Engine Motor 4cyl 100 Miles Oem Lkq fits RX350 2023

Introducing the advanced and sophisticated 2.4-liter Four-Cylinder Engine found in the 2023 Lexus RX 350 UNK (UR-N251F-LCU) and the 2023 Lexus 300 UNK (UR-N251F), this powertrain delivers an exceptional blend of performance and efficiency.

The 2.4-liter engine is built with a dual-overhead cam (DOHC) design, featuring 16 valves and a compact and lightweight aluminum block. The engine utilizes a port fuel injection system, which ensures precise fuel delivery for optimal combustion efficiency. The engine produces a peak output of 167 horsepower at 6,000 rpm and 151 lb-ft of peak torque at 4,000 rpm, delivering impressive acceleration and responsiveness.

The 2.4-liter engine is also equipped with several advanced technologies to enhance its performance and durability. It features Lexus' D-4S direct injection system, which utilizes both direct and port fuel injection to optimize combustion efficiency across a wide range of engine speeds and loads. The engine also incorporates Variable Valve Timing with intelligence (VVT-i), which adjusts the timing of the intake and exhaust valves to optimize engine performance at all speeds.

The 2.4-liter engine is mated to a 6-speed automatic Electronically Controlled Transmission with intelligence (ECT-i) that delivers smooth and responsive shifting. The transmission features a wide ratio spread that helps to optimize engine performance and efficiency across the entire RPM range. It also includes a Sequential Shiftmatic mode, which allows drivers to manually shift through the gears for more control and engagement.

The engine and transmission work together to provide a driving experience that is both refined and engaging. The 2.4-liter engine delivers strong and linear acceleration, while the 6-speed automatic transmission ensures seamless shifts and quick response. The engine is also designed to be efficient, with an estimated fuel economy rating of up to 24 mpg city and 31 mpg highway.

In summary, the 2.4-liter Four-Cylinder Engine found in the 2023 Lexus RX 350 UNK and the 2023 Lexus 300 UNK is a sophisticated and advanced powertrain that delivers impressive performance and efficiency. With its compact and lightweight design, advanced technologies, and smooth and responsive transmission, this engine is a perfect fit for those seeking a refined and engaging driving experience.

The Lexus RX 350 comes with a 2.4-liter, 4-cylinder engine as an option in some markets, although it is not the standard engine for this model in most regions. Here are some potential pros and cons of buying this engine variant:

1. Fuel Efficiency: The 2.4-liter engine is more fuel-efficient compared to the standard 3.5-liter V6 engine. This could lead to savings on fuel costs over time.

2. Smooth Performance: Lexus engines are known for their smoothness and refinement, and the 2.4-liter engine is no exception. It delivers linear power and responsive acceleration.

3. Size and Maneuverability: The smaller engine and lighter weight of the 4-cylinder RX could make it easier to maneuver in tight spaces and offer better fuel economy in city driving.

1. Power: The 2.4-liter engine delivers less power than the standard 3.5-liter V6 engine, which translates to slower acceleration and less thrilling driving dynamics.

2. Noise: Some critics have noted that the smaller engine can be louder than the V6, particularly under heavy acceleration.

3. Limited Availability: The 2.4-liter engine is not available in all markets, and it may not meet the performance expectations of some Lexus buyers.

In conclusion, the decision to buy the 2.4-liter engine variant of the Lexus RX 350 depends on your personal preferences and priorities. If fuel efficiency and lower costs are your top concerns, then this engine could be a good choice. However, if you prioritize power, refinement, and driving dynamics, you may prefer the standard 3.5-liter V6 engine. Ultimately, it's important to test drive both options and consider your specific needs and preferences before making a decision.

Recommendation: If fuel efficiency is a priority for you, and you don't mind sacrificing some power, then the 2.4-liter engine in the Lexus RX 350 could be a good choice. Otherwise, the standard 3.5-liter V6 engine may be a better fit for your needs. It's always a good idea to compare prices, features, and fuel economy estimates from different dealers and sources to ensure you're getting the best value for your money.

Details:

Examples of these non-warranty parts include switches, sensors, cables, coils, wires, injectors, electronics, belts including timing belt/chain, hoses, water pumps, brackets, intake/exhaust manifolds, oil pans and turbos/superchargers if equipped. Exchange the flywheel and bolts. Exchange attached accessory items to insure proper fit mounts, intake manifold, exhaust distributor, sensors. On crankshaft bolts that are drilled through sealant must be applied to avoid leaks.

To aid in installation, you get to keep your current engine and all attached accessories. Replace engine oil, oil filter, air fuel filters, coolant-antifreeze. Replace water pump. Insure this engine is the same application as one being replaced.

Disable fuel/ignition before attempting to start engine. Insure the cooling system is flushed and functioning properly. This listing is for 1 ITEM ONLY, Warranty covers the Long Block Engine Block, Cylinder Heads, Head Gasket, Crankshaft, Pistons, Rods, Bearings, Oil Pump, Camshaft, Valves Lifters. Clear all computer diagnostic codes from the vehicle prior to installing.

Residential Address - Load is curbside delivery ONLY. This will allow the oil to prime as indicated by manufacturer. Warranty does NOT cover labor, diagnostic, towing or rental car costs. ATTENTION: Stock photo shows multiple items.

Someone over 18 must be present for delivery. Warranty does NOT cover labor, diagnostics, towing, rental car, or any other expense related to an item being defective/damaged. If included these parts are sold AS-IS with NO WARRANTY and were to help protect the engine during storage shipping. They will not have any packaging included.

Remove all 'cap-plugs' orifice covers. No photos of the actual engine are available. Install replacement spark plugs wires. Inspect and replace gaskets seals front seal, rear main valve cover gaskets, oil pan.

Drain excess oil and coolant from exhaust system. If equipped with an engine oil cooler the radiator or external must be replaced.

specifications grokengines:

• for models: Rx350
• for makes: Lexus
• for years: 2023
• part type: Engine Motor
• engine size: 2.4
• ipn: 300-unk
• genuine oem: Yes
• manufacturer warranty: 6 Month
• warranty length: 6 Month Warranty
• partout id: A-113346908
• used engine mileage range: Low Mileage , 000 74, 999 Miles

seller grokengines:

• city: Houston, Texas
• # reviews: 504231
• rating: 98.5%

returns grokengines:

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

general grokengines:

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

offer grokengines:

• availability: In Stock
• quantity: 1
• started: April 19, 2026
• options: Ship-to-home
• sold: 0

shipping grokengines:

• service: Flat Rate Freight
• type: Fixed
• class: Freight
• cost: $0.00

payments grokengines:

• credit card: Discover
• other
• wallet: Paypal

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