# 40-10030200 Aftermarket Parsun Piston Nut | Sawley's Select Marine Parts

🔧 Product Description

  

Aftermarket Parsun F30/F40 Locating-Cylinder Piston Nut - Part Number: T40-10030200

  

A replacement retaining nut used in the Parsun T40 locating-cylinder piston assembly. It secures the piston/seal stack on the tilt shaft and must maintain correct clamping and thread engagement under repeated hydraulic load.

  

⚙️ Key Features

  

• Direct replacement T40-10030200 / PAT40-10030200

• Part of piston assembly T40-10030000

• Works with oil seal T40-10030202 and related piston components

• Precision threaded hydraulic-retaining component

• Replace if threads, flats or locking surfaces are damaged

  

🔄 Supersession & Cross Reference

  

OEM Supersession Chain:

  

• PAT40-10030200 → Recmar/Parsun packaged reference for T40-10030200

• No supersession has been confirmed

  

OEM / Related Numbers:

  

• T40-10030200

• 40-10030200

• PAT40-10030200

• T40-10030000

• T40-10030202

• T40-10030100

  

Aftermarket / Verified Equivalents:

  

• Recmar: PAT40-10030200

• No confirmed other-brand equivalent

  

🚤 Compatibility

  

Commonly used on:

  

• Parsun T40 locating-cylinder piston assemblies

  

Typically suits:

  

• Engine / drive models:

• Parsun F30

• Parsun F40

  

• HP Range: 30-40 HP

• Engine / Drive Type: Hydraulic piston/shaft retaining nut

• Year Range: Model-dependent; no universal year range is published

• Serial / Identification Range: Confirm thread diameter and T40-10030200 in the F30/F40 exploded diagram.

  

🔌 Function

  

Clamps the piston and seal components securely to the tilt shaft so hydraulic force is transferred without movement or leakage at the joint.

  

Common signs of failure or replacement requirement:

  

• Damaged or stripped threads

• Nut loosens during cylinder operation

• Piston movement on the shaft

• Leakage caused by insufficient seal-stack clamping

• Rounded flats or corrosion preventing correct torque

  

📦 Condition

  

• Brand-new aftermarket replacement part

• Supplied as a new replacement component

• Supplied in suitable retail or equivalent packaging

## Details

- **Price:** 37.35 AUD
- **Vendor:** Sawley's Select Marine Parts
- **Type:** Drives & Propulsion
- **Tags:** Power Trim, Sawley's Select – Power Trim | Trim & Tilt Systems & Components

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 37.35 AUD | In stock |

## Images

- 40-10030200 Aftermarket Parsun Piston Nut | Sawley's Select Marine Parts
- 40-10030200 Aftermarket Parsun Piston Nut | Sawley's Select Marine Parts - photo 2 of 2

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/40-10030200-piston-nut-pat40-10030200-for-parsun-engines)
> Updated: 2026-09-05