129059 OEM Heavy-Duty Clutch Cover Kit with Heat-Treated Diaphragm Springs for Mack Trucks

The 129059 clutch cover kit is a fully matched OEM replacement assembly engineered exclusively for Mack heavy-duty trucks. Featuring thickened high-strength cast steel pressure cover and heat-treated durable diaphragm springs, this kit maintains stable clamping force under extreme high-temperature working conditions to eliminate clutch slipping during heavy-load transportation. The precisely machined structure consistent with original installation standards allows quick plug-and-play mounting without extra adjustments. Every component passes strict fatigue and high-temperature resistance tests in factory, effectively reducing shifting vibration, lowering pedal operating resistance and extending overall service life. An ideal maintenance accessory for long-haul cargo fleets and engineering transport vehicles to cut frequent repair costs and vehicle downtime.

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