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Ignition Coil for Yamaha DT100 DT175 DT250 DT360 DT400
Ignition Coil for Yamaha DT100 DT175 DT250 DT360 DT400
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Product Overview
Replacement external ignition coil with 90-degree spark plug cap for selected vintage Yamaha DT-series motorcycles, including compatible DT100, DT175, DT250, DT360, and DT400 applications.
The assembly features approximately 53mm mounting-hole spacing, 6mm mounting holes, and a 340mm ignition lead with an angled 90° spark plug cap.
Designed as a replacement for compatible Yamaha ignition systems, this coil should be matched with the original part by motorcycle model and year, mounting dimensions, wiring connection, ignition lead, and original coil design before ordering.
Product Compatibility
| Make | Model | Year | Fitment Notes |
|---|---|---|---|
| Yamaha | DT100 | 1974–1983 | Verify original coil and mounting |
| Yamaha | DT175 | 1978–1981 | Matching ignition configuration required |
| Yamaha | DT250 | Selected 1974–1979 | Verify original coil/OEM configuration carefully |
| Yamaha | DT360 | 1974 | Compatible replacement applications |
| Yamaha | DT400 | 1975–1978 | Verify original ignition coil |
DT250 Fitment
The original product information is contradictory because it lists DT250 as both compatible and incompatible.
Cross-reference data supports ignition-coil applications within the DT250 family, including a confirmed ignition coil assembly in the 1979 DT250 parts catalog. However, ignition configurations can vary across these vintage motorcycles.
For DT250, compare the original ignition coil, mounting-hole spacing, wiring, and OEM number before ordering.
OEM Cross-Reference Numbers
Depending on model and year, related Yamaha ignition-coil references in this vintage DT family include:
- 5G4-82310-40
- 1M2-82310-40
- 5X6-82310-40
- 355-82310-40
- 439-82310-40
- 437-82310-40
- 565-82310-10
These are provided as cross-reference numbers for the related ignition-coil family and should not be treated as universally interchangeable across every listed model and year.
Specifications
| Specification | Details |
|---|---|
| Product Type | External Ignition Coil |
| Spark Plug Cap | 90-Degree |
| Mounting Hole Distance | Approx. 53 mm / 2.09 in |
| Mounting Hole Diameter | Approx. 6 mm / 0.24 in |
| Ignition Wire Length | Approx. 340 mm / 13.39 in |
| Application | Yamaha DT-Series Motorcycle |
| Material | Plastic / Metal |
| Condition | New |
| Package Quantity | 1 Ignition Coil Assembly |
Key Features
- Vintage Yamaha DT Fitment: Designed for selected DT100, DT175, DT250, DT360, and DT400 applications.
- 90° Spark Plug Cap: Angled plug-cap design helps route the ignition lead around the engine.
- 340mm Ignition Lead: Provides approximately 13.4 inches of wire length for compatible installations.
- 53mm Mounting Spacing: Important physical reference for comparison with the original ignition coil.
- Complete External Coil Assembly: Includes the ignition coil, high-tension lead, and angled spark plug cap as shown.
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Fitment FAQ
Will this part fit my specific model and year?
This ignition coil is intended for selected vintage Yamaha DT-series motorcycles, including:
DT100: 1974–1983
DT175: 1978–1981
DT250: selected 1974–1979 applications
DT360: 1974
DT400: 1975–1978
Because these motorcycles are now several decades old and ignition configurations can vary, compare the replacement with the existing coil before ordering.
Do I need to match the OEM part number?
Matching the OEM number is recommended when it is available.
You should also compare the 53mm mounting-hole spacing, electrical connections, ignition lead, spark plug cap, and overall coil design with the original part.
What models or situations does this part not fit?
Do not assume this coil fits:
Every Yamaha DT motorcycle
Every DT250 solely based on model name
Models using a different mounting-hole spacing
Ignition systems with incompatible primary wiring
Applications requiring a different ignition coil design
Motorcycles that have been converted to a different ignition system
Vintage motorcycles may also have aftermarket ignition conversions installed by previous owners.
What should I check before ordering?
Confirm:
Exact Yamaha DT model
Model year
Original ignition coil appearance
OEM number where available
Approx. 53mm mounting-hole spacing
Approx. 6mm mounting holes
Approx. 340mm ignition lead
Primary electrical connection
90° spark plug cap configuration
For a DT250 application, comparison with the original coil is especially recommended.