These replacement Western Coils are functional equivalents of the original coils. The difference is in the Outer Diameter which is .030" larger. They will fit over 2 of the valves but will not fit in the counter bore of the third valve. Other sellers of this coil do not notify their customers of this limitation. These are Brand New Coils. They will also replace BOSS HYD01638 and FISHER 7639.
- Replacement Coils are made in the USA and meet most OEM specifications.