NISSAN 31728-41X03 Automatic Transmission Oil Strainer
Genuine part. Fitment information is for reference only. To ensure 100% compatibility, please send us a message with your VIN number before ordering.
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OEM / Alternate Numbers
Product Description
This genuine Nissan (OEM: 31728-41X03) automatic transmission oil strainer (Strainer Assy-O) plays a crucial role in protecting the automatic transmission hydraulic system and ensuring smooth operation. The strainer is responsible for removing metal particles and other contaminants generated during mechanical wear from the transmission fluid (ATF), thereby protecting the valve body and precision valves from premature wear.
Technical Features and Functions:
- Efficient Filtration: The specialized metal mesh or fibrous filter media ensures optimal fluid flow while retaining the finest microscopic contaminants.
- Durable Construction: The robust metal housing withstands high operating temperatures and the chemical effects of transmission fluid additives.
- Pressure Stability: Maintains the consistent oil pressure required by the hydraulic system across all engine speed ranges.
Common Symptoms of Failure or Clogging:
- Delayed or erratic gear shifts (particularly during cold starts).
- Jerking or slipping between gear shifts.
- Metallic or whining noises from the transmission caused by insufficient fluid flow.
- Transmission overheating, leading to accelerated oil degradation.
To ensure a long transmission service life and reliable operation, it is recommended to replace the filter during every transmission fluid service.
Technical Specifications
| Brand | NISSAN |
|---|---|
| Weight | 0.365 kg |
Compatible Vehicles
| Make | Model | Engine | Year | Notes |
|---|---|---|---|---|
| Nissan | Frontier (D22U) | All Engines | 1999 - 2002 | STRAINER ASSY-O |
| Nissan | Nissan Truck (D22) | 3.2 D (QD32) | 2003 - 2005 | STRAINER ASSY-O (QD32) |
| Nissan | Pathfinder (R50) | All Engines | 1995 - 2003 | STRAINER ASSY-O |
| Nissan | Pathfinder Jpn (R50) | All Engines | 1995 - 2003 | STRAINER ASSY-O |
| Nissan | Patrol (Y61) | All Engines | 2000 - 2002 | STRAINER ASSY-O |
| Nissan | Pickup (D21U) | All Engines | 1994 - 1996 | STRAINER ASSY-O |
| Nissan | Pickup (D21) | All Engines | 1987 - 1993 | STRAINER ASSY-O |
| Nissan | Qx4 (JR50) | All Engines | 2001 - 2001 | STRAINER ASSY-O |
| Nissan | Terrano (R50) | All Engines | 1997 - 2000 | STRAINER ASSY-O |
| Nissan | Terrano2 (R20) | All Engines | 1999 - 2004 | STRAINER ASSY-O |
| Nissan | Xterra (WD22) | All Engines | 1999 - 2001 | STRAINER ASSY-O |
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