The Eaton Fuller Spacer 4303964 is a genuine OEM countershaft assembly component used in the RTLO and RTLOF 610B-series heavy-duty manual transmissions. This spacer appears at position 16 in the countershaft assembly group and carries a quantity of 2 per unit across all covered models. Compatible transmission models span 26 variants, including the RTLO-11610B through RTLO-18610B-T2 and the RTLOF-11610B through RTLOF-18610B series. If you need to confirm this is the correct spacer for your specific transmission build, call Pro Gear and Transmission and we can help verify proper fit.
RTLO-11610B-T2, RTLO-12610B-T2, RTLO-12610B, RTLO-13610B-T2, RTLO-13610B, RTLO-14610B-T2, RTLO-15610B-T2, RTLO-15610B, RTLO-16610B-T2, RTLO-17610B-T2, RTLO-17610B, RTLO-18610B-T2, RTLO-18610B
RTLOF-11610B-T2, RTLOF-11610B, RTLOF-12610B-T2, RTLOF-12610B, RTLOF-13610B-T2, RTLOF-13610B, RTLOF-14610B-T2, RTLOF-15610B-T2, RTLOF-15610B, RTLOF-16610B-T2, RTLOF-17610B-T2, RTLOF-17610B, RTLOF-18610B
This spacer is listed in the countershaft assembly group (item 16, quantity 2) across all models above.
Features
Genuine Eaton Fuller OEM part number 4303964
Countershaft assembly component, position 16 in the countershaft group
Quantity of 2 required per transmission assembly
Fits 26 RTLO and RTLOF 610B-series transmission models
Covers RTLO-11610B through RTLO-18610B-T2 and RTLOF-11610B through RTLOF-18610B variants
Sold by Pro Gear and Transmission
Additional Information
Compatible Transmission Models (26 total):RTLO-11610B-T2, RTLO-12610B-T2, RTLO-12610B, RTLO-13610B-T2, RTLO-13610B, RTLO-14610B-T2, RTLO-15610B-T2, RTLO-15610B, RTLO-16610B-T2, RTLO-17610B-T2, RTLO-17610B, RTLO-18610B-T2, RTLO-18610B
RTLOF-11610B-T2, RTLOF-11610B, RTLOF-12610B-T2, RTLOF-12610B, RTLOF-13610B-T2, RTLOF-13610B, RTLOF-14610B-T2, RTLOF-15610B-T2, RTLOF-15610B, RTLOF-16610B-T2, RTLOF-17610B-T2, RTLOF-17610B, RTLOF-18610B
This spacer is listed in the countershaft assembly group (item 16, quantity 2) across all models above.
