The Eaton Fuller Piston, part number 20854, is a genuine OEM slave valve piston (kit reference A-5000) used in Fuller RT, RTLO, and RTLOF series manual transmissions. This piston seats within the slave valve assembly and is listed in the illustrated parts manuals for a wide range of Fuller transmissions, including the RT-7608LL, RT-8608L, RT-8908LL, RTLO-12713A, RTLO-14618A, RTLO-16713A, RTLO-18718B, RTLO-20918B, RTLO-22918B, and many related variants. Quantity per assembly is one. Call us to confirm the correct fit for your specific transmission model and serial number.

Part 20854 appears in the illustrated parts manuals for over 60 Fuller transmission models, including:
RT-7608LL, RT-8608L, RT-8908LL
RTF-8608L, RTF-8908LL
RTLO-11118A-MT, RTLO-12713A, RTLO-12913A
RTLO-14613B, RTLO-14618A, RTLO-14713A, RTLO-14718B, RTLO-14913A
RTLO-14918B, RTLO-14918B-T2
RTLO-16618A, RTLO-16713A, RTLO-16713A-T2, RTLO-16718B, RTLO-16913A, RTLO-16913A-T2
RTLO-16918B, RTLO-16918B-T2
RTLO-18718B, RTLO-18718B-T2, RTLO-18913A, RTLO-18913A-T2
RTLO-18918B, RTLO-18918B-T2
RTLO-20913A, RTLO-20918B, RTLO-20918B-T2
RTLO-22918B
RTLO-9118A-MT
RTLOC-16909A-T2
RTLOF-12713A, RTLOF-12913A, RTLOF-14613B, RTLOF-14618A, RTLOF-14713A
Confirm your transmission model and serial number before ordering, or call us to verify fitment.