NISSAN 32240-VB125 Transmission Main Shaft Rebuild Kit (Shaft, 5th Gear, Spacer)
Genuine part. Fitment information is for reference only. To ensure 100% compatibility, please send us a message with your VIN number before ordering.
Categories
OEM / Alternate Numbers
Product Description
This genuine Nissan (OEM) transmission rebuild kit (main shaft assembly, SHAFT ASSY-MAIN) is one of the most critical structural components of the manual transmission system. The kit is specifically designed for replacing and overhauling the transmission main shaft, the 5th gear, and associated spacers, ensuring optimal drivetrain operation and reliable torque transfer.
Operating Principle and Importance
The transmission main shaft is directly involved in transferring torque from the engine to the wheels. The 5th gear and precision spacers play a key role in providing the correct gear ratio at highway speeds or higher speed ranges. Genuine OEM-quality components guarantee perfect gear mesh, minimizing internal friction and heat generation.
Technical Features and Specifications
- Material Quality: High-tensile, heat-treated, and hardened steel alloy engineered to withstand heavy torsional loads and mechanical wear.
- Precision Machining: Gears and shaft are manufactured to micrometer-level tolerances for flawless fitment and quiet operation.
- Complete Kit: Includes the main shaft, 5th gear, and the necessary spacer rings for professional installation.
- Genuine OEM Quality: Guaranteed genuine Nissan part, far exceeding aftermarket alternatives in durability and reliability.
Typical Symptoms of Failure or Wear
Wear on internal transmission components can trigger a serious chain reaction in the drivetrain. The following signs may indicate failure or wear of the shaft or 5th gear:
- Noisy Transmission: Whining, humming, or grinding noise that specifically occurs or intensifies when 5th gear is engaged.
- Popping Out of Gear: The transmission slips out of 5th gear into neutral under load (during acceleration or engine braking).
- Difficult Gear Engagement: Stiff, notchy, or hesitant engagement when shifting into 5th gear.
- Metal Particles in Transmission Fluid: Fine metal shavings visible during a transmission oil change, indicating surface wear on the gears or shaft.
Technical Specifications
| Brand | NISSAN |
|---|---|
| Weight | 7.460 kg |
Compatible Vehicles
| Make | Model | Engine | Year | Notes |
|---|---|---|---|---|
| Nissan | Patrol (Y61) | All Engines | 2002 - 2004 | SHAFT ASSY-MAIN |
| Nissan | Safari Pick Up (TY61) | 4.5 (TB45) | 2004 - 2012 | SHAFT ASSY-MAIN (TB45) |
| Nissan | Safari Pick Up (TY61) | 4.5 (TB45E) | 2004 - 2012 | SHAFT ASSY-MAIN (TB45E) |
| Nissan | Safari Pick Up (TY61) | All Engines | 2004 - 2012 | SHAFT ASSY-MAIN |
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