TOYOTA 44152-30020 Power Steering Gear Plunger
Genuine part. Fitment information is for reference only. To ensure 100% compatibility, please send us a message with your VIN number before ordering.
Categories
Product Description
The genuine Toyota 44152-30020 power steering gear plunger (OEM designation: Plunger, Power) is a vital precision control component of the hydraulic power steering system. This part is directly responsible for regulating hydraulic fluid flow and pressure within the steering gear valve housing, ensuring smooth steering effort and precise road feedback.
Technical Characteristics and Specifications:
- Manufacturer: TOYOTA (Genuine OEM part)
- Part Number: 44152-30020
- Part Type: Steering gear power plunger / hydraulic control plunger
- Material Composition: Hardened and micro-ground steel alloy manufactured to strict factory tolerances for maximum wear resistance.
- Surface Finish: Superfinished sliding surfaces to minimize internal hydraulic leakage (bypass).
- Installation Location: Inside the hydraulic control valve housing of the steering gear.
Operating Principle and Function:
The power plunger converts mechanical displacement from steering wheel input into a hydraulic control action. Precision-machined grooves and ports on the plunger regulate the direction of high-pressure fluid delivered from the power steering pump into the corresponding chamber of the steering gear power cylinder, generating the hydraulic assist force required for steering.
Typical Symptoms of Wear or Failure:
- Heavy Steering: If the plunger surface becomes worn or scored, hydraulic fluid can leak past it, resulting in a substantial reduction or complete loss of power assist.
- Intermittent Assist: A sudden stiffening or jerky sensation while turning the steering wheel.
- Steering Play or Delayed Response: A worn plunger delays hydraulic pressure buildup, causing vague or delayed steering response.
- Abnormal Hydraulic Noise: Inadequate flow regulation can lead to cavitation or hissing/whining noises within the steering gear.
The steering gear hydraulic system is extremely sensitive to contamination. When replacing the power plunger, it is always recommended to thoroughly flush the entire hydraulic system and refill it with fresh fluid meeting OEM specifications to ensure long-term, reliable operation.
Technical Specifications
| Brand | TOYOTA |
|---|---|
| Weight | 0.005 kg |
Compatible Vehicles
| Make | Model | Engine | Year | Notes |
|---|---|---|---|---|
| Toyota | 4Runner (N210) | 2.4 (22R) | 1988 - 1995 | PLUNGER, POWER PISTON (RN100, 22R) |
| Toyota | Century (VG4) | All Engines | 1987 - 1997 | PLUNGER, POWER PISTON |
| Toyota | Crown (S130) | 4.0 (1UZFE) | 1987 - 1991 | PLUNGER, POWER PISTON (UZS131, 1UZFE) |
| Toyota | Crown (S140) | All Engines | 1991 - 1995 | PLUNGER, POWER PISTON |
| Toyota | Hilux (N140-N170) | 2.7 (3RZF) | 1997 - 2001 | PLUNGER, POWER PISTON (RZN174, 3RZF) |
| Toyota | Hilux (N140-N170) | 2.4 TD (2LT) | 1997 - 2005 | PLUNGER, POWER PISTON (LN147, 2LT) |
| Toyota | Hilux (N140-N170) | 2.0 (1RZ) | 1997 - 1999 | PLUNGER, POWER PISTON (RZN168, 1RZ) |
| Toyota | Hilux (N140-N170) | 3.0 D-4D (1KDFTV) | 2001 - 2004 | PLUNGER, POWER PISTON (KDN155, 1KDFTV) |
| Toyota | Hilux (N140-N170) | 3.0 TD (1KZTE) | 2001 - 2005 | PLUNGER, POWER PISTON (KZN165, 1KZTE) |
| Toyota | Hilux (N140-N170) | 3.4 (5VZFE) | 2001 - 2005 | PLUNGER, POWER PISTON (VZN167, 5VZFE) |
| Toyota | Hilux (N80-N110) | 2.4 TD (2LT) | 1988 - 2001 | PLUNGER, POWER PISTON (LN107, 2LT) |
| Toyota | Hilux (N80-N110) | 2.4 (22R) | 1988 - 1991 | PLUNGER, POWER PISTON (RN106, 22R) |
| Toyota | Hilux (N80-N110) | 2.2 (4YE) | 1990 - ... | PLUNGER, POWER PISTON (YN85, 4YE) |
| Toyota | Hilux (N80-N110) | 3.0 TD (1KZT) | 1990 - 9999 | PLUNGER, POWER PISTON (KZN130, 1KZT) |
| Toyota | Land Cruiser 100 (J100) | 4.5 (1FZFE) | 1998 - ... | PLUNGER, POWER PISTON (FZJ105, 1FZFE) |
| Toyota | Land Cruiser 70 (J70) | 4.2 D (1HZ) | 1990 - 1993 | PLUNGER, POWER PISTON (HZJ78, 1HZ) |
| Toyota | Land Cruiser 70 (J70) | 4.5 (1FZF) | 1990 - 1993 | PLUNGER, POWER PISTON (FJ70, 1FZF) |
| Toyota | Land Cruiser 70 (J70) | 3.4 TD (13BT) | 1990 - 2001 | PLUNGER, POWER PISTON (BJ73, 13BT) |
| Toyota | Land Cruiser 70 (J70) | 3.0 TD (1KZT) | 1994 - 1996 | PLUNGER, POWER PISTON (KZJ70, 1KZT) |
| Toyota | Land Cruiser 70 (J70) | 4.0 (1GRFE) | 2007 - 2016 | PLUNGER, POWER PISTON (GRJ71, 1GRFE) |
| Toyota | Land Cruiser 80 (J80) | 4.0 (3FE) | 1990 - 1998 | PLUNGER, POWER PISTON (FJ80, 3FE) |
| Toyota | Land Cruiser 80 (J80) | 4.5 (1FZF) | 1992 - 9999 | PLUNGER, POWER PISTON (FZJ80, 1FZF) |
| Toyota | Lexus LX (J80) | 4.5 (1FZFE) | 1995 - 1998 | PLUNGER, POWER PISTON (FZJ80, 1FZFE) |
| Toyota | T100 (RCK10) | All Engines | 1992 - 9999 | PLUNGER, POWER PISTON |
Inquire About This Part
Not sure if this fits? Send us your VIN number and we will double check for you.
Related products & Accessories
These products are frequently purchased together or perfectly complement the selected part.
