Experience crisp throttle response and vibration-free cruising with this Nissan Sentra MR20DE Remanufactured Engine. Each 2.0L 4-Cylinder 16-Valve DOHC power plant features line-honed main bearing saddles and ultrasonic-cleaned CVTCS cam sprockets. Technicians must conduct pressurized oil priming before initial cranking and execute an exact 500-mile break-in oil change to protect the micro-polished journal surfaces.

Cast with MR20 and EM5 identification marks, this die-cast aluminum block features thin-wall centrifugal iron liners align-honed for bore concentricity. The lower crankcase utilizes narrow oil pan casting EN2. The rotating assembly features a micro-polished forged steel crankshaft, forged connecting rods, and low-friction hypereutectic pistons. Cylinder head casting EL0 houses dual overhead camshafts with variable valve timing. Net weight equals 240 lbs within crated dimensions of 36in length by 36in width by 36in height. Oil capacity measures 4.0 quarts.

Key Features of Nissan MR20DE

Professional engine technicians buy Nissan MR20DE remanufactured engine assemblies to resolve persistent oil consumption and restore factory power outputs. This long block replacement provides factory-matched tolerances for front-wheel-drive compact sedans.

- Cylinder head casting EL0 receives CNC multi-angle valve seat cutting to maintain 0.001in runout.
- Narrow oil pan casting EN2 ensures correct sump clearance and factory baffle oil control.
- Diamond plateau honed cylinder walls establish an Ra 15 micro-inch finish for prompt ring seating.
- Micro-polished crankshaft journals eliminate runout to protect engine bearings from hydrodynamic breakdown.
- Variable timing sprockets receive pressure bench testing to confirm prompt phase adjustments.
- Multi-layer steel head gaskets ensure combustion chamber seal durability across elevated thermal stress cycles.
- New high-grade cylinder head bolts supply uniform clamp load across the aluminum block deck.

Dyno Bench Clearance Machining Specifications

Dyno cell testing certifies mechanical power output and oil gallery pressurization prior to crate shipment. The 2.0L 1997cc DOHC engine outputs 140 HP at 5,100 RPM and 147 ft-lbs of shaft torque at 4,800 RPM. Main journal oil clearance holds between 0.0010in and 0.0014in, while connecting rod clearance measures 0.0011in to 0.0014in. Individual cylinder compression gauges show 185 PSI across all 4 cylinders. Hot oil pressure maintains 55 PSI at 3,000 RPM with regulated coolant temperatures stabilizing at 190°F.

Vehicle Fitment Drivetrain Guide

This engine fits 2007 to 2012 Nissan Sentra sedans equipped with the 2.0L 1997cc DOHC MR20DE engine featuring head casting EL0, intake CVTCS, and narrow oil pan casting EN2. Compatible drivetrains include front-wheel drive paired with 6-Speed manual transaxles or CVT transaxles. This long block does not fit 2.5L QR25DE Sentra SE-R models, 1.8L MR18DE Versa chassis, or Nissan NV200 commercial vans with deep-sump oil pans due to divergent casting profiles.

Installation Protocol Service Requirements

Technicians must inspect narrow oil pan pan-rail sealant, check CVT transmission alignment dowels, and complete an electronic throttle relearn during chassis installation. Operating warnings restrict use in custom forced-induction turbo systems exceeding 6 PSI boost or non-vented track chassis lacking auxiliary oil coolers.

- Pre-fill the spin-on oil filter and prime oil passages with 5W-30 motor oil before starting.
- Drain initial break-in oil and install a replacement oil filter at the 500-mile service interval.
- Check variable valve timing solenoid electrical connectors and inspect cooling hoses at 1,500 miles.

Warranty Terms Core Return Policy

Our remanufactured long block comes backed by a standard 3-Year Unlimited-Mile warranty for lasting peace of mind. We provide free prepaid return freight shipping for your depleted rebuildable core engine within 30 days of arrival. The crate includes the remanufactured long block, complete timing drive, oil pan, and valve cover.