Starter Motor for John Deere 316, 318 & 420 Tractors 1983-1992
Starter Motor for John Deere 316, 318 & 420 Tractors 1983-1992
SKU:410-48129
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Starter Motor for John Deere 316, 318 & 420 Tractors 1983-1992
Fits John Deere lawn and garden tractors with Onan B43E and B48G engines
This starter motor is a direct replacement for the John Deere 316, 318 and 420 lawn and garden tractors powered by Onan B43E and B48G engines, built to OEM specifications for correct fit and function.
It is a 12V unit with an 8-tooth counter-clockwise rotation drive, delivering 0.8kW of cranking power, with mounting holes 8mm OD on a 38mm centre-to-centre spacing.
We recommend checking your battery condition and charging system before fitting a replacement starter, as a weak battery is a common cause of premature starter failure. This unit is bench tested before dispatch to confirm correct output, rotation and mounting. Onan-engined John Deere equipment sees frequent start-stop cycling, so brush and drive gear wear over time is a normal failure mode, typically showing up first as slow or intermittent cranking.
Key Features
- Direct OEM fit and finish for John Deere 316, 318 and 420
- 12V, 0.8kW starter motor
- 8-tooth pinion, counter-clockwise rotation
- Mounting holes 8mm OD, 38mm centre-to-centre
- Suits Onan B43E and B48G engines
- 12-month warranty as standard
Technical Specs
| Specification | Detail |
|---|---|
| Voltage | 12V |
| Rotation | CCW |
| Teeth | 8 |
| Power | 0.8kW |
| Mounting | 8mm OD holes, 38mm centre-to-centre |
| Part Type | Unit |
Vehicle Fitment Guide
Years shown are the overall coverage span for this part. Please confirm against the OEM part number on your original unit before ordering.
| Make & Model | Years |
|---|---|
| John Deere 316 (Onan B43E) | 1984-1992 |
| John Deere 318 (Onan B43E) | 1983-1992 |
| John Deere 420 (Onan B48G) | 1983-1991 |
OEM Part Number Cross Reference
Aftermarket replacement. OEM part numbers are listed for reference only.
| Part Number | Manufacturer / Brand |
|---|---|
| AM102777, AM104506, AM109172 | John Deere |
| 191-1682-02, 191-1808-02 | Onan |
Frequently Asked Questions
Will this fit my machine without modification?
Yes, this starter is a direct OEM-fit replacement for the John Deere 316, 318 and 420 with Onan engines and requires no modification to install.
What is included?
One complete starter motor unit, ready to fit.
How do I know my old starter has failed?
Common signs include a clicking noise when turning the key, the engine failing to crank, or the starter spinning without engaging the flywheel.
How do I confirm the mounting will match my machine?
Check the mounting hole diameter and centre-to-centre spacing (8mm OD, 38mm centre-to-centre) against your original starter before ordering.
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