Description
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Complete Endurant service kit: MTM alignment + Rail B synchronizer engagement tools for precise sliding clutch alignment.
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Replaces OEM part numbers RR2011TR, RR1086TR (plate & fork), RR1088TR for professional drivetrain work.
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Speeds gearbox assembly & diagnosis; reduces repeat jobs by accurately setting Rail B & E synchronizers.
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Shop-grade build for heavy-duty 12-speed applications; designed for frequent fleet use.
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Ideal for International LT/RH/LoneStar platforms equipped with Endurant HD transmissions.
Fitment Chart
Note: always confirm transmission by VIN before ordering)
Make Model Engine Years International LT Series Cummins X15, International A26 2018–2025 International LoneStar Cummins X15, International A26 2018–2025 International RH Series International A26 2020–2025 Freightliner Cascadia Detroit DD13, Cummins X12 2020–2025 Kenworth T680 Cummins X15 2020–2025 Peterbilt 579 Cummins X15 2020–2025 Volvo VNL Cummins X15 2020–2025* *Some VNL configurations use Volvo I-Shift; verify Endurant HD before purchase.
Tackle Endurant HD gearbox service with confidence. The Oni Tools Mechanical Diagnostic Kit is a pro-grade alternative to RR2011TR that includes the MTM Alignment components and the Rail B Synchronizer Engagement Tool used to align sliding clutches and correctly position the B & E synchronizers. By replacing OEM part numbers RR2011TR, RR1086TR and RR1088TR, this kit helps technicians set neutral and confirm engagement without guesswork, reducing reassembly errors and comeback repairs. Optimized for 12-speed Endurant HD transmissions commonly found on International LT, RH and LoneStar platforms, it’s a smart choice for dealership bays, fleets and serious DIY owners servicing clutch, mechatronic or synchronizer components. Durable construction stands up to daily use, while the straightforward setup integrates with standard shop procedures for fast, repeatable results.
