The Eaton Fuller Heat Exchanger Kit, part number K-3972 or K3972, is the correct service kit for the heat exchanger group across a broad range of RTLO and RTLOF series transmissions. Per Eaton Fuller illustrated parts manuals, this kit is listed as the current service part for models including the RTLO-12913A, RTLO-14913A, RTLO-16913A, RTLO-18913A, RTLO-20918B, RTLOF-12913A, RTLOF-14913A, RTLOF-16913A, RTLOF-18913A, and related 18B and T2 variants. Call us to confirm proper fit for your specific transmission serial number.
Used in 17 Eaton Fuller models
Interchanges:
- Eaton Fuller 5586609
- Eaton Fuller 5586620
Features
Genuine Eaton Fuller Heat Exchanger Kit, part number K-3972 or K3972
Listed in Eaton Fuller illustrated parts manuals for 17 RTLO and RTLOF series models
Covers RTLO-12913A through RTLO-20918B-T2 and matching RTLOF variants
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