The Eaton Fuller O-Ring, part number 18109, is a genuine OEM seal used in the auxiliary countershaft pump group of Eaton Fuller heavy-duty transmissions. Listed in the illustrated parts manuals for 30 transmission models, including RTLO-14713A, RTLOF-14713A, RTO and RTOF variants in the 11607L, 11608LL, and 14608LL families, and RTX and RTXF models spanning the 12509, 12510, 12515, 14608LL, 14609A/B/P/R, and 15615 series. Cross-references include 18109-SP, 18109SP, and 3088-18109. Call us to confirm proper fit for your specific transmission build.
Features
Genuine Eaton Fuller OEM part number 18109
Auxiliary countershaft pump group seal application
Fits 30 transmission models including RTLO-14713A, RTO-11607L, RTX-12509, RTX-15615, and RTXF variants
Also referenced as 18109-SP, 18109SP, 3088-18109, and FUL18109
Sold individually (each)
