Mtd Cub Cadet White RZT42-17AA5B4G Zero Turn Mower Parts
The Mtd Cub Cadet White RZT42, model 17AA5B4G, is a popular zero-turn mower known for its maneuverability and efficient mowing. Typically equipped with a 42-inch cutting deck and powered by a single-cylinder engine, this model offers a great balance of size and power for residential use. Find all the replacement parts you need to keep your RZT42 running smoothly, from belts and blades to filters and more.
The Cub Cadet RZT42, manufactured by MTD, is a residential zero-turn mower designed for homeowners with medium-sized yards. The 17AA5B4G model was part of the RZT series, known for its responsive steering and zero-turn capability. It's generally powered by a single-cylinder engine, typically a Kohler or Kawasaki, in the range of 17-20 horsepower, with a displacement around 500-600cc. This engine provides ample power for the 42-inch cutting deck. The transmission is a dual hydrostatic type, allowing for independent control of each wheel for precise maneuvering. Key features of the RZT42 include its comfortable seating, easy-to-use controls, and durable construction. It is ideal for residential use on relatively flat terrains, offering a significant upgrade from traditional lawn tractors in terms of speed and agility. Compared to other models in the Cub Cadet lineup, the RZT42 strikes a balance between affordability and performance, making it a popular choice for homeowners seeking a zero-turn mower without the high cost of commercial-grade machines.
Specifications
| Engine | Kohler or Kawasaki 17-20 HP 500-600cc Single-Cylinder |
|---|---|
| Transmission | Dual Hydrostatic |
| Deck Size | 42 inches |
| Ground Speed | 5-7 mph |
| Fuel Capacity | 3 gallons |
| Weight | 500 lbs |
| Years Produced | Varies by year |
Maintenance Tips
- Check and replace belts annually or every 100 hours of use to prevent slippage and ensure optimal performance.
- Sharpen or replace mower blades every 25 hours of use, or more frequently if mowing in sandy or rocky conditions, to maintain a clean cut.
- Change the engine oil and filter every 50 hours of use or at least once a year, using the recommended oil type and filter for your engine model.
- Before storing your mower for the winter, stabilize the fuel, clean the mower deck, and disconnect the battery to prevent damage and ensure easy starting in the spring.
History & Background
The Cub Cadet RZT42 was introduced as part of their residential zero-turn lineup, offering homeowners a more agile and efficient mowing solution compared to traditional lawn tractors. As part of the RZT series, it aimed to provide zero-turn maneuverability at a more accessible price point. While specific redesigns may have occurred over its production run, the core functionality remained consistent.
Frequently Asked Questions
What size deck does the Mtd Cub Cadet White RZT42 17AA5B4G have?
The Mtd Cub Cadet White RZT42 17AA5B4G zero-turn mower has a 42-inch cutting deck.
What engine is in the Mtd Cub Cadet White RZT42 17AA5B4G?
The Mtd Cub Cadet White RZT42 17AA5B4G is typically powered by a 17-20 HP Kohler or Kawasaki single-cylinder engine.
What belt do I need for my Mtd Cub Cadet White RZT42 17AA5B4G?
The deck belt for the RZT42 typically requires a 1/2" x specific length belt. Please consult your owner's manual or measure your existing belt for the exact length. The drive belts will also have size specifications, consult your parts diagram for the correct part number.
What blades fit the Mtd Cub Cadet White RZT42 17AA5B4G?
The Mtd Cub Cadet White RZT42 17AA5B4G typically uses two 21-inch blades, for a total cutting width of 42 inches. Check your manual for the exact blade type, star pattern and thickness.


