FNR5 2010-2012 Mazda CX-7 2.5L FWD – Remanufactured 5-Speed Automatic Trans

Description

Calibrated 3.66:1 first gear reduction mechanics paired with 280 PSI line circuit pressures transfer 175 lb-ft continuous torque to accelerate crossover fleet vehicles using the Mazda FNR5 Remanufactured Transmission engineered for 2010 to 2012 Mazda CX-7 front-wheel drive crossovers with 2.5-liter engines. This remanufactured transaxle restores firm gear shifts and overcomes converter shudder.

A380 die-cast aluminum casing walls prevent housing deflection under heavy crossover payload transfers. Remanufactured valve bodies incorporate hardened steel valves, wear-resistant Sonnax sleeves, and micro-ground separator plates to eliminate cross-circuit pressure drops. Carbon-metallic clutch packs dissipate thermal energy through radial fluid channels. Threaded 3/8-inch inverted flare cooler ports connect straight to chassis heat exchangers. Dry weight without torque converter measures 182 lbs, requiring 7.6 quarts of specified transmission fluid.

Key Features of Mazda FNR5

Crossover fleet supervisors choose to buy Mazda FNR5 remanufactured transmission units to cure gear hunting and line pressure loss under passenger loading. Dyno testing validates hydraulic line pressure regulation throughout every forward gear step.

• 280 PSI line pressure calibration maintains clutch clamping force under highway merges
• 5 forward speed gear sets optimize crossover acceleration and highway fuel efficiency
• Hard-anodized valve bore sleeves halt hydraulic fluid bypass to preserve line pressure
• Precision balanced torque converter eliminates lockup shudder during high-speed transit
• Pulse-width modulated solenoids direct fluid volume for precise clutch engagement timing
• Mazda FNR5 planetary gear carriers resist tooth wear under continuous commercial operations
• High-displacement internal pump maintains steady fluid flow to all friction packs
• Multi-groove friction linings promote fluid evacuation to prevent glaze accumulation

Crossover Torque Hydraulic Limits

Designed to sustain 175 lb-ft continuous input torque at 4,000 RPM, this transaxle handles heavy crossover duty with dependable mechanical strength. Internal line pressures modulate between 180 and 280 PSI to clamp friction plates firmly under acceleration. Fluid sump temperatures stay regulated from 160°F to 185°F supported by a 38 kW external cooling circuit. Forward mechanical gear steps include 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.

Driveline Differential Spline Fitment

Dual 28-spline differential output gears accept factory CV half-shaft yokes without rotational looseness. Bell housing mounting dowels locate square to the 2.5-liter engine block face within 0.003-inch runout tolerance. An internal parking pawl mechanism secures 1,220 lb-ft holding force to hold loaded crossovers stationary on steep parking ramps.

Adaptive Shift Service Protocols

Transmission control module adaptive relearn procedures calibrate shift solenoids within the first 25 miles of vehicle operation. This unit is not engineered for track drag racing, extreme rock crawling, or gross combined vehicle weights exceeding factory chassis tow limits. Adhering to regular fluid inspection schedules prevents internal valve sticking and friction plate degradation.

• Check automatic transmission fluid level and clarity each shift with the dipstick
• Drain and refill specified synthetic automatic transmission fluid every 30,000 miles
• Inspect external transmission cooler lines and fittings every 12 months

Warranty Coverage Shipping Manifest

A 3-Year / 100,000-Mile commercial fleet warranty protects fleet investments against unforeseen component failures. The heavy wooden shipping crate contains the remanufactured transaxle unit, balanced torque converter, replacement cooler line seal washers, detailed vehicle installation instructions, and an ATSG dyno verification test sheet.