Ferguson TE20 Electrical Restoration Kit

Wiring Harness, Regulator & Ignition Components

Restore reliable electrical performance to your Ferguson TE20 Petrol with this complete Electrical Restoration Kit from Agline NZ. Designed for tractors retaining their original 6 Volt charging system, this bundle combines the essential components required to rebuild and modernise your electrical system while maintaining factory specification.

Ideal for full restorations, electrical fault repairs, or replacing aged wiring and charging components.

Kit Includes:

• Wiring Harness – TE20 Petrol (B8017)

• 6 Volt Voltage Regulator – B125

• 6V Ignition Coil

• Contact Set (Points)

• Ignition Condenser

• 6V Light Bulbs (Headlights & Dash – optional)

Why Replace the Complete Electrical System?

Over time, original wiring and charging components can cause:

• Hard starting

• Dim or flickering lights

• Charging failure

• Intermittent ignition faults

• Battery drain

Replacing the full system ensures:

✔ Stable battery charging
✔ Reliable ignition performance
✔ Improved lighting output
✔ Safe, secure electrical connections
✔ Reduced breakdown risk

Designed For:

• Ferguson TE20 Petrol (6V original systems)

• Full factory-spec restorations

• Electrical rebuilds

• Vintage tractor projects

Maintain Original Specification

This kit is ideal for owners wanting to:

✔ Keep the tractor original 6 Volt
✔ Maintain authenticity
✔ Avoid 12V conversion
✔ Restore factory wiring layout

Ferguson TE20 6V vs 12V Conversion Guide

Which Electrical System Is Right for Your Tractor?

Many Ferguson TE20 owners face the same question during restoration:

👉 Should I keep the original 6 Volt system, or convert to 12 Volt?

This guide explains the benefits of each option to help you choose the best setup for your tractor.

🔋 Original 6 Volt System (Factory Specification)

The TE20 was originally fitted with a 6V generator (dynamo) charging system.

Key Components:

• 6V Battery

• Generator (Dynamo)

• 6V Voltage Regulator (B125)

• 6V Ignition Coil

• Original Wiring Harness (B8017)

Advantages:

✔ Maintains factory originality
✔ Ideal for show-quality restorations
✔ Authentic wiring layout
✔ Correct for collectors

Considerations:

• Slower cranking speed

• Dimmer lighting

• Batteries less common than 12V

• Requires excellent cable condition

Best suited for:
🔹 Authentic restorations
🔹 Collector tractors
🔹 Light occasional use

⚡ 12 Volt Conversion (Modern Upgrade)

Many TE20 tractors have been converted to 12V for improved reliability.

Key Components:

• 12V Battery

• 70 Amp Alternator (Lucas Type)

• 12V Ignition Coil

• 12V Bulbs

• Updated wiring (if required)

Advantages:

✔ Faster engine cranking
✔ Improved cold starting
✔ Brighter lights
✔ More reliable charging
✔ Easier battery sourcing

Considerations:

• Not factory original

• Requires proper wiring setup

• Must match coil type (ballast vs non-ballast)

Best suited for:
🔹 Working tractors
🔹 Regular farm use
🔹 Reliability-focused owners

Quick Comparison Table

Common TE20 Electrical Problems

If you experience:

• Hard starting

• Weak spark

• Dim lights

• Battery not charging

Your issue may relate to:

• Incorrect coil type

• Faulty regulator

• Worn wiring harness

• Weak battery

• Poor earth connection

Agline Recommended Solutions

For 6V Restorations:

• TE20 Wiring Harness (B8017)

• 6V Regulator (B125)

• 6V Ignition Coil

For 12V Conversions:

• 70 Amp Alternator

• 12V Ignition Coil

• 12V Starter Motor

• Heavy-duty battery cables