31609-65A Eco Line High-power Ignition Coils
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Specifications
- Brand
- Zodiac (Genuine Zodiac Products)
- Part Number
- 748143
- OEM Reference
- 31609-65A
- Pack Quantity
- Each
- Category
- Ignition Coils
- VAT Rate
- 20%
About This Product
If you're chasing a more reliable spark for your older Harley, these Eco Line High-Power Dual Fire ignition coils are a smart choice. They are engineered to fit right into the stock housing and provide a significant jump in performance, pushing out 30,000 volts. That’s roughly a 20% increase in peak spark voltage, which goes a long way in curing cold-start issues and high-speed misses. This unit is a direct replacement for OEM 31609-65A and is compatible with various Big Twin, FX, Sportster, and Touring models. Because it’s a dual fire coil, it’s designed for systems with a single pickup or set of points. It’s an affordable way to get better mileage and smoother performance out of your classic machine.
Fitment
20 modelsBig Twin | FX | Sportster | Touring
Sportster 20 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1970 | 3AH0 Sportster Standard (1970) 3AH0 XLH Sportster Standard (1970) Sportster Standard XLH 3AH0 XLH-1000 |
| Harley-Davidson | 1971 | 3AH1 Sportster Standard (1971) 3AH1 XLH Sportster Standard (1971) Sportster Standard XLH 3AH1 XLH-1000 |
| Harley-Davidson | 1972 | 3AH2 Sportster Standard (1972) 3AH2 XLH Sportster Standard (1972) Sportster Standard XLH 3AH2 XLH-1000 |
| Harley-Davidson | 1973 | 3AH3 Sportster Standard (1973) 3AH3 XLH Sportster Standard (1973) Sportster Standard XLH 3AH3 XLH-1000 |
| Harley-Davidson | 1974 | 3AH4 Sportster Standard (1974) 3AH4 XLH Sportster Standard (1974) Sportster Standard XLH 3AH4 XLH-1000 |
| Harley-Davidson | 1975 | 3AH5 Sportster Standard (1975) 3AH5 XLH Sportster Standard (1975) Sportster Standard XLH 3AH5 XLH-1000 |
| Harley-Davidson | 1976 | 3AH6 Sportster Standard (1976) 3AH6 XLH Sportster Standard (1976) Sportster Standard XLH 3AH6 XLH-1000 |
| Harley-Davidson | 1977 | 3AH7 Sportster Standard (1977) 3AH7 XLH Sportster Standard (1977) Sportster Standard XLH 3AH7 XLH-1000 |
| Harley-Davidson | 1978 | 3AH8 Sportster Standard (1978) 3AH8 XLH Sportster Standard (1978) Sportster Standard XLH 3AH8 XLH-1000 |
| Harley-Davidson | 1979 | 3AH9 Sportster 1000 (1979) 3AH9 XLH1000 Sportster 1000 (1979) Sportster 1000 XLH1000 3AH9 XLH-1000 |
| Harley-Davidson | 1970 | 4AH0 Sportster 1000 (1970) 4AH0 XLCH1000 Sportster 1000 (1970) Sportster 1000 XLCH1000 4AH0 XLCH-1000 |
| Harley-Davidson | 1971 | 4AH1 Sportster 1000 (1971) 4AH1 XLCH1000 Sportster 1000 (1971) Sportster 1000 XLCH1000 4AH1 XLCH-1000 |
| Harley-Davidson | 1972 | 4AH2 Sportster 1000 (1972) 4AH2 XLCH1000 Sportster 1000 (1972) Sportster 1000 XLCH1000 4AH2 XLCH-1000 |
| Harley-Davidson | 1973 | 4AH3 Sportster 1000 (1973) 4AH3 XLCH1000 Sportster 1000 (1973) Sportster 1000 XLCH1000 4AH3 XLCH-1000 |
| Harley-Davidson | 1974 | 4AH4 Sportster 1000 (1974) 4AH4 XLCH1000 Sportster 1000 (1974) Sportster 1000 XLCH1000 4AH4 XLCH-1000 |
| Harley-Davidson | 1975 | 4AH5 Sportster 1000 (1975) 4AH5 XLCH1000 Sportster 1000 (1975) Sportster 1000 XLCH1000 4AH5 XLCH-1000 |
| Harley-Davidson | 1976 | 4AH6 Sportster 1000 (1976) 4AH6 XLCH1000 Sportster 1000 (1976) Sportster 1000 XLCH1000 4AH6 XLCH-1000 |
| Harley-Davidson | 1977 | 4AH7 Sportster 1000 (1977) 4AH7 XLCH1000 Sportster 1000 (1977) Sportster 1000 XLCH1000 4AH7 XLCH-1000 |
| Harley-Davidson | 1978 | 4AH8 Sportster 1000 (1978) 4AH8 XLCH1000 Sportster 1000 (1978) Sportster 1000 XLCH1000 4AH8 XLCH-1000 |
| Harley-Davidson | 1979 | 4AH9 Sportster (1979) 4AH9 XLCH Sportster (1979) Sportster XLCH 4AH9 XLCH-1000 |
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