Suzuki Swift Sport MK3 ZC31S 5-speed | Final Drive 13x62 / 13x64

Short ratio Final Drives for Suzuki Swift Sport MK3 ZC31S (5-Speed Gearbox)

Applications:

These short ratio final drives are a direct bolt-on application for the 57KA 5-speed manual gearbox found in the Suzuki Swift Sport ZC31S (M16A engine) from 2005>2010. However, with some modifications, it may also be compatible with other Suzuki vehicles.

Possible compatible models:

1. Suzuki Swift Sport MK3 1.6L 16v 125hp (ZC31S) – 2005-2010 (original application)
2. Suzuki Swift (ZC11S, ZC21S, ZC71S) – Some non-Sport Swift models may accept this gearbox with modifications.
3. Suzuki SX4 (GY, RW, EY series) – Some versions with the M16A engine might be compatible.
4. Suzuki Liana (Aerio) – Some markets – If equipped with an M16A or similar engine, it might be adaptable.

Ratios available:

• 4.76 - 13/62
• 4.92 - 13/64

Material:

Manufactured from billet and forged Ni-Cr-Mo steel, delivering exceptional mechanical strength, high impact resistance, and long-term durability under high torque and aggressive driving conditions.

Hardness:

• HRC 56–60, ensuring excellent resistance to wear and surface fatigue, even in demanding motorsport applications.

Surface Treatments:

Multiple advanced surface treatment processes are applied to maximize durability and reliability:

• Sandblasting – Ensures uniform surface finish and optimal surface preparation
• Shot peening – Increases fatigue strength by inducing compressive surface stresses
• WPC treatment – Enhances surface hardness, reduces friction, and improves micro-surface durability

Heat Treatments:

To achieve maximum strength, dimensional stability, and service life, the following heat treatments are applied:

• Carburizing – Produces a hard, wear-resistant surface while maintaining a tough core
• Cryogenic treatment – Improves dimensional stability, wear resistance, and long-term gear mesh performance

Performance Benefits:

• Increased torque multiplication and improved acceleration
• Designed specifically for Renault JC5 gearboxes
• High resistance to shock loads and sustained high-RPM operation
• Suitable for motorsport and high-performance street use