Re: Another Big Twin Observation…. Home › Forum › Ask A Member › Another Big Twin Observation…. › Re: Another Big Twin Observation…. bill-mcnamaraCanada Member - 1 Year (includes $3 online payment fee)Replies: 241Topics: 58 August 10, 2018 at 11:36 am #80913 Frank, Both of these engines are mod# RJEL-18, is the "L" the letter suffix? If it is, can I assume that the seal was the change from that 303804 lip seal?? Bill.