Fits 91-2005 GM Workhorse Chassis P30, P32, P42.  This is the Updated Workhorse Ignition Relay Upgrade for Gas and Diesel models.   Ignition Switch harness connector plugs often melted due to thermal overload from a substandard GM / Workhorse design, leaving owners stuck alongside the road.  My kit reroutes the high amperage wires away from the switch, which protects the switch and the plugs.  My Kit includes: Wiring Relays (2), New Ignition Switch Connector Plugs (black and white), Ignition Switch and wiring to connect to the power source, and detailed directions.  This setup keeps you from getting stuck on the road requiring an expensive tow bill and major hassle.  This fits the bread truck, step van, box truck, food truck / food van and the motorhome / RV versions (Tiffin Allegro, Winnebago, Newmar, Fleetwood, NAVISTAR, Pace Arrow, R-Vision, Airstream, and others) that use the Workhorse chassis.  Due to the body builders making variants, minor modifications / adjustment may necessary for your vehicle.  The Black and White connector plugs are for the Ignition Switch if you have a TILT WHEEL.  The wires match the OEM harness colors and are already pre-installed into the connector plugs and relays and ready for you to splice into your existing wiring harness.   This assembly can be installed by a professional or a vehicle owner familiar with automotive wiring and electrical systems.  This is the best upgrade kit available for this problem.  FREE SHIPPING!  Returns accepted.  Buyer pays return shipping and 15% restock fee.  See my other listings in the Workhorse Category of my store if you need to purchase the Workhorse C1 and C2 Ignition Switch Connector / Harness Plugs or the Workhorse Ignition Switch.