FNR5 2010-2012 Mazda 3 2.0L FWD – Remanufactured 5-Speed Automatic Trans

Description

Halt converter lockup clutch friction shudder and premature intermediate slip under 270 PSI line circuit pressure during grueling high-traffic municipal passenger routes through the Mazda FNR5 Remanufactured Transmission matched to 2010 to 2012 Mazda 3 sedans with 2.0-liter engines. This remanufactured front-wheel drive transaxle renews positive gear engagement without hydraulic slip.

Die-cast A380 aluminum casing structures minimize housing twist under cornering loads. Valve body channels receive hard-anodized Sonnax bore sleeves and micro-polished separator plates that stop internal fluid bypass. Dual 3/8-inch quick-connect fluid ports route automatic transmission fluid to the chassis cooler. Carbon-metallic clutch discs feature radial grooves to dissipate heat during stop-and-go driving. Dry transmission weight without torque converter measures 176 lbs, and internal fluid volume requires 7.2 quarts of approved synthetic fluid.

Key Features of Mazda FNR5

Municipal fleet managers choose to buy Mazda FNR5 remanufactured transmission packages to resolve erratic gear shifting in commuter cars. Dyno load cell qualification verifies hydraulic pressure stability across every gear step.

• 270 PSI main circuit pressure prevents friction plate burn under loaded acceleration
• 5 forward speed gear sets distribute engine torque to maintain low fuel consumption
• Hard-anodized valve bore sleeves restore hydraulic line integrity to stop shift flares
• Balanced torque converter eliminates lockup clutch vibration during steady cruising
• Pulse-width modulated solenoids direct fluid volume for precise clutch engagement timing
• Mazda FNR5 planetary gear teeth feature shot-peened faces to counter tooth fatigue
• High-displacement internal pump maintains fluid flow across all rotating elements
• Carbon-metallic friction materials resist thermal glazing during severe traffic halts

Hydraulic Force Torque Parameters

This transaxle handles 150 lb-ft continuous input torque at 4,000 RPM under rigorous urban fleet transit duties. Internal line pressure modulates between 170 and 270 PSI to lock clutches without slippage. Operating sump temperatures hold steady between 160°F and 185°F supported by a 34 kW external heat exchanger. Forward gear steps provide a 3.66:1 first gear, 2.06:1 second gear, 1.38:1 third gear, 1.00:1 fourth gear, and a 0.73:1 fifth gear overdrive ratio.

Differential Spline Shaft Fitment

Dual 28-spline internal differential outputs accept factory CV axle stubs with zero rotational backlash. Bell housing alignment dowel holes match the 2.0-liter engine block face within 0.003-inch runout tolerance. The internal parking pawl mechanism holds 1,150 lb-ft driveline torque to keep vehicles stationary on steep hills.

Electronic Shift Service Guidelines

TCM adaptive shift learning procedures must be performed over the first 25 miles of service to calibrate solenoid operation. This unit is not engineered for track drag racing, extreme rock crawling, or gross combined vehicle weights exceeding factory chassis tow limits. Periodic fluid maintenance prevents internal valve sticking and friction plate degradation.

• Inspect automatic transmission fluid level and color each shift using the dipstick
• Drain and replace synthetic automatic transmission fluid every 30,000 miles
• Examine cooler lines and pan seal for fluid seepage every 12 months

Commercial Warranty Crate Manifest

A 3-Year / 100,000-Mile commercial fleet warranty protects fleet operations from unexpected component failures. The wooden shipping crate contains the remanufactured transaxle, balanced torque converter, replacement cooler line seal washers, technical vehicle installation guide, and an ATSG dyno verification test sheet.