Nissan Frontier Engine for Sale

About the Nissan Frontier Engine

This is the QR25DE, a robust 2.5-liter DOHC inline-four used in the Frontier from 2005. It carries cast steel connecting rods, a durable steel timing chain, dual counter-rotating balance shafts for smoothness, and an aluminum block and head for light weight and good heat control. Multi-point EFI, coil-on-plug ignition, electronic throttle control, and CVTC on the intake cam round out a service-friendly engine with strong low-end torque for truck duty. It sits longitudinally and is compatible with both manual and automatic transmissions.

>Why Frontier Owners Replace the Engine>

High mileage, oil consumption, overheating, and timing-related wear are the usual reasons. A healthy QR25DE restores steady low-end torque for towing and hauling, brings back a quiet, low-vibration idle thanks to the balance shafts, and returns the dependable everyday response the Frontier is built on. This engine is inspected for compression before it ships.

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>Things to Confirm Before Ordering>

• Your engine, confirmed by VIN: this is the 2.5L four-cylinder, and it does not replace the 4.0L V6
• Your transmission match: the four-cylinder used different transmissions than the V6, so the engine-and-transmission pairing should be VIN-confirmed
• Your maintenance plan: Strict 5,000-mile oil changes, regular timing-chain checks, and prompt air and fuel filter replacement prevent QR25DE failures

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>What Is Included, What Is Not Included>

Detail Description INCLUDED The QR25DE 2.5L engine assembly as photographed; confirm the exact configuration at order. NOT INCLUDED Transmission, accessories not pictured, and fluids; transfer your undamaged accessories at install. Tools You Need Standard engine-swap tools and fresh oil and filter; keep strict 5,000-mile oil changes and regular timing-chain checks.

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>Vehicle Compatibility>

Detail Description Nissan Frontier, QR25DE 2.5L four-cylinder (2005 donor vehicle) VIN confirmed at order Engine note This is the 2.5L four-cylinder, not the 4.0L V6; it does not replace the V6 Transmission Compatible with manual and automatic; confirm the engine-and-transmission pairing by VIN Reference Application 2005 Nissan Frontier

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>Fitment Assistance>

Call (240) 301-0095 with your VIN. Because the Frontier was sold with both a four-cylinder and a V6, which used different transmissions, we confirm your engine and the transmission pairing before the engine ships.

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>Condition and Inspection>

This is a used engine, inspected before shipping:

• Compression checked across cylinders
• Timing chain and cover inspected
• External surfaces checked for oil and coolant leaks
• Block and head castings verified OE
• Photos provided before purchase

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>Why Buy from Us>

• Clear engine identification: the 2.5L four-cylinder, not the 4.0L V6
• Engine and transmission pairing confirmed by VIN
• Compression and timing chain inspected before sale
• 30% off shipping to all 50 states, no hidden fees
• No core charge; keep your old engine
• 15 day replacement warranty