OER Parts offers a wide selection of Oil System & Parts for your 1988 Ford E-350 Econoline. OER Parts offers 1988 Ford E-350 Econoline Bypass Valves, 1988 Ford E-350 Econoline Dipsticks and Tubes, 1988 Ford E-350 Econoline Filter Adapters, 1988 Ford E-350 Econoline Oil Coolers, 1988 Ford E-350 Econoline Oil Filters, 1988 Ford E-350 Econoline Oil Pan Baffles, 1988 Ford E-350 Econoline Oil Pans, 1988 Ford E-350 Econoline Oil Pickup Tubes, 1988 Ford E-350 Econoline Oil Pumps, and 1988 Ford E-350 Econoline Oil Senders.