74 products
Transmission
Shop Transmission from Hilltop Diesel Performance. Browse performance, replacement, service and supporting parts, and verify exact year, engine and vehicle fitment before ordering.
SALE
BD Diesel
BD Diesel Roadmaster 6R140 Transmission & Converter Package - 2017-2019 Ford 6.7L Powerstroke
$6,579.95$6,316.99
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SALE
BD Diesel
BD Diesel Roadmaster 6R140 Transmission & Converter Package - 2011-2016 Ford 6.7L Powerstroke
$5,961.46$5,723.99
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SALE
Mishimoto
Mishimoto Transmission Cooler - 2003-2007 Ford 6.0L Powerstroke
$399.95$384.95
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SALE
Mishimoto
Mishimoto Performance Transmission Cooler - 2019-2026 Ram 6.7L Cummins
$529.95$508.95
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SALE
Mishimoto
Mishimoto Full-Flow Thermal Bypass Valve - 2019-2024 Ram 6.7L Cummins
$99.95$96.95
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SALE
Mishimoto
Mishimoto Serviceable Thermal Bypass Valve - 2019-2024 Ram 6.7L Cummins
$204.95$196.95
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SALE
ATS
ATS Master Transmission Overhaul Kit - 2003-2007 Dodge 5.9L Cummins
$849.99$816.95
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SALE
Mishimoto
Mishimoto Full-Flow Thermal Bypass Valve Upgrade - 2017-2019 GM Duramax L5P
$99.95$96.95
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SALE
Mishimoto
Mishimoto Thermal Bypass Valve Kit - 2017-2019 GM Duramax L5P
$147.95$142.95
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SALE
Mishimoto
Mishimoto Transmission Cooler - 2008-2010 Ford 6.4L Powerstroke
$491.95$472.95
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SALE
Merchant Automotive
Merchant Automotive Transfer Case Rear Output Seal - 261XHD/263XHD - 2001-2007 GM Duramax
$44.72$42.95
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SALE
Merchant Automotive
Merchant Automotive Deluxe Bearing & Seal Kit - NP261HD - 2001-2007 GM Duramax
$159.93$153.95
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SALE
Mishimoto
Mishimoto Transmission Cooler - 2015-2016 GM LML Duramax
$499.95$480.95
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SALE
Mishimoto
Mishimoto Transmission Cooler - 2006-2010 GM Duramax LBZ/LMM
$498.95$479.99
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SALE
PPE
PPE Low Profile Allison Transmission Pan - Black - 2001-2019 GM Duramax
$260.99$250.95
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SALE
PPE
PPE Low Profile Allison Transmission Pan - Brushed - 2001-2019 GM Duramax
$260.99$250.95
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SALE
PPE
PPE 68RFE Transmission Pan - Raw - 2007.5-2024 Ram 6.7L Cummins
$305.99$293.95
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SALE
PPE
PPE 68RFE Transmission Pan - Black - 2007.5-2024 Ram 6.7L Cummins
$323.99$311.99
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SALE
PPE
PPE Performance Transmission Cooler - 2020-2025 GM L5P Duramax
$350.99$336.99
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SALE
BD Diesel
BD Diesel TorqueMaster 6R140 Transmission & Converter Package - 2011-2016 Ford 6.7L Powerstroke
$8,919.95$8,563.95
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SALE
Mishimoto
Mishimoto Essentials Cooling Bundle - 2003-2009 Dodge Cummins
$1,671.95$1,605.95
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SALE
Mishimoto
Mishimoto Transmission Cooler - 2003-2009 Dodge 5.9L/6.7L Cummins
$599.95$576.95
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SALE
BD Diesel
BD Diesel TowMaster 68RFE Transmission - 2019-2022 Ram 6.7L Cummins
$6,190.00$5,942.95
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SALE
BD Diesel
BD Diesel Roadmaster 68RFE Transmission & Converter Package - 2007.5-2018 Cummins
$6,289.95$6,038.95
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Diesel parts guide
Shopping Transmission
Hilltop Diesel Performance organizes parts around real truck fitment so you can move from platform to the component you need without digging through an unrelated catalog. start with your exact year and engine, then verify configuration-specific notes on the product page before ordering.
Common upgrade and service paths include fuel delivery, injectors, turbochargers, intake and charge-air parts, exhaust, cooling, transmission components, filtration, sensors, gaskets, hardware and supporting installation parts.