The Eaton Fuller K-4315 or K4315 is an ECU Assembly Kit engineered for MXP-series 18-speed overdrive transmissions. The kit centers on a Gen 3 ECU Assembly (part 4309016) paired with a transmission application software assembly (5570052) and configuration software specific to 18-speed OD B MXP applications (5582109). Hardware in the kit includes two sets of nut assemblies (parts 4305870 and 4305919, three of each) along with two instruction letters to guide installation. Cross-references include K-4315RX and K4315RX. This is a genuine Eaton Fuller part sold by Pro Gear and Transmission. Call us to confirm this kit matches your specific transmission build before ordering.
A refundable core charge of $350.00 applies to this item and will be collected at checkout. The core charge is refunded upon receipt of your returned core, subject to its condition; customer is responsible for return shipping. Call us at (877) 776-4600 for details.
Features
ECU Assembly Kit for Eaton Fuller MXP 18-speed overdrive (OD B) transmissions
Includes Gen 3 ECU Assembly (part 4309016)
Includes transmission application software assembly (part 5570052) and 18-speed OD B MXP configuration software (part 5582109)
Kit includes two sets of nut assemblies: part 4305870 (x3) and part 4305919 (x3)
Two instruction letters (L-2005-10 and L-2008-07) included for installation guidance
Cross-references: K-4315RX or K4315RX
