2018 ZERO Zero FXS ZF7.2 Transmission

Everything Your Transmission Needs, All in One Place

The transmission is one of the most mechanically complex and critical systems in any vehicle. Whether it's a classic manual gearbox, a modern automatic, or a continuously variable unit, the transmission is responsible for transferring engine power to the wheels — managing torque, regulating gear ratios, and keeping the powertrain operating within its optimal range. When transmission components wear out or fail, the result can be sluggish acceleration, difficulty shifting, slipping gears, or complete drivetrain loss. Sourcing the right parts matters enormously, and this category covers the full spectrum of what it takes to keep a transmission running right.

Explore Key Transmission Subcategories

This category spans a wide range of components and service needs. Manual Transmission Components represent the largest segment — encompassing clutch kits, pressure plates, clutch discs, release bearings, and slave cylinders that are fundamental to how a manual gearbox engages and disengages power. For deeper rebuilds or complete overhauls, Transmission Hard Parts covers the internal wear items such as gears, shafts, synchronizers, and housings that are integral to the transmission's mechanical function.

The Flywheel is a rotating mass that connects the engine to the clutch assembly, stores rotational energy, and smooths out power delivery — making it a key part of any clutch replacement or performance upgrade. The Transmission Valve Body is the hydraulic control center of an automatic transmission, directing fluid pressure to engage the correct gear at the right moment; a worn or failing valve body is a common root cause of harsh shifts and transmission hesitation. Rounding out the lineup, Service Kits bundle together the gaskets, seals, and wear items needed for a thorough transmission service, making them indispensable for professional rebuilders and DIY enthusiasts alike.

Top Transmission Brands

LuK is the dominant force in this category by a wide margin. In 1965, LuK invented the diaphragm spring clutch in Germany , and Schaeffler's LuK brand is the international market leader in clutch technology, being the largest OE supplier to the automotive industry. Their catalog covers clutch kits, dual-mass flywheels, torque converters, and CVT components, making them the go-to for OEM-quality replacement parts.

Exedy Clutch brings decades of Japanese precision engineering to the aftermarket. EXEDY was founded in 1923, and its clutch manufacturing business and the Daikin Clutch brand are known throughout the world for supplying quality powertrain products. EXEDY is also widely recognized as a leader in performance sports and racing clutches, offering a tiered lineup from OEM-replacement to competition-spec units.

ACDelco is General Motors' own parts brand, providing a broad range of transmission components that meet OE specifications for GM vehicles — from automatic transmission hard parts to seals and service kits. Their extensive coverage and OEM heritage make them a reliable choice for GM owners seeking a factory-correct fit.

McLeod has been a fixture in the performance driveline world since 1971. McLeod Racing is a leading global supplier of clutch kits, clutch components, hydraulic bearings, flywheels, bellhousings, and other performance driveline products, serving the world's foremost performance automotive, light truck, and racing enthusiasts. Their products range from performance street replacement clutches to race-ready units capable of handling 3,000 hp.

Dorman rounds out the top five with an enormous selection of transmission-related hard parts, remanufactured components, and specialty repair solutions. Dorman is well known for engineering replacement parts for applications that are otherwise difficult to source, making them a practical choice for older vehicles or less-common repairs.

What to Consider When Shopping Transmission Parts

• OEM vs. Performance: Decide whether you need a stock-spec replacement to restore factory function or an upgraded component to handle increased power output.
• Complete Kits vs. Individual Parts: Clutch kits that include the pressure plate, disc, and release bearing are designed to work as a matched system — replacing all wear items at once reduces the chance of premature failure.
• Vehicle Compatibility: Transmission specifications vary significantly even within the same engine family. Always verify fitment by make, model, year, engine, and transmission type before ordering.
• Rebuild vs. Replace: For automatic transmissions, consider whether a complete service kit or individual hard parts best suit your repair scope and budget.