# Twin Power 99-01 FLH With EFI Ignition Coil Black Replaces H-D 31639-99

Twin Power™ coils are the high-quality direct fit with at least 20% more voltage than stock. Constructed from durable high-quality, molded-epoxy, in a late O.E.M.-style molded case, these ignition coils improve starting, prevent high-speed misfires and increase overall performance. They are available in black and chrome, and come with a one-year manufacturer's warranty.

-   Direct replacements restore factory spark output across Big Twin, XL, V-Rod, and Softail applications from 1965-2021
-   High-energy output ensures crisp throttle response, easy starting, and strong combustion under all conditions
-   Black/Chrome housings match stock aesthetics with precise ohm ratings for reliable ignition performance

This Part Fits:

Year

Make

Model

Submodel

1999-2001

Harley-Davidson

FLHRCI Road King Classic

Base

2000-2001

Harley-Davidson

FLHRI Road King

Base

1999-2001

Harley-Davidson

FLHTCI Electra Glide Classic

Base

1999-2001

Harley-Davidson

FLHTCUI Electra Glide Ultra Classic

Base

1999-2001

Harley-Davidson

FLTRI Road Glide

Base

## Details

- **Price:** 255.93 CAD
- **Vendor:** TwinPower
- **Type:** Stock Replacement Ignition

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 255.93 CAD | In stock |

## Images

- Photo - Primary

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/twin-power-99-01-flh-with-efi-ignition-coil-black-replaces-h-d-31639-99)
> Updated: 2026-07-01