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Roca Transmissions
GM 4L60E 4L65E Transmission Master Rebuild Kit,B-85TMBX Torque Converter 2004-UP
GM 4L60E 4L65E Transmission Master Rebuild Kit,B-85TMBX Torque Converter 2004-UP
Regular price
$449.99 USD
Regular price
Sale price
$449.99 USD
Quantity
Couldn't load pickup availability
Condition: New
Fitment: GM 4L60E & 4L65E automatic transmissions, 2004-Up applications.
(Examples: Silverado/Sierra, Tahoe/Suburban, Avalanche, Trailblazer/Envoy, Camaro, GTO, SSR, Hummer H2, many RWD Cadillac/Chevy/GMC models using 4L60E/4L65E 2004+.) Always verify by VIN/RPO (M30 = 4L60E, M32 = 4L65E) and pan bolt count (13-bolt).
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What you’re buying
A complete Master Rebuild Kit + B-85 TMBX lock-up torque converter—everything you need for a thorough overhaul of a 2004-Up GM 4L60E/4L65E. Quality components for a reliable, OE-feel rebuild.
Master Kit Includes
• Complete friction clutch set (forward, reverse input, 3-4, overrun, low/reverse)
• Matched steel plate set
• Overhaul gasket & seal kit (all paper/rubber gaskets, seals, O-rings)
• Molded pistons (2004-Up style)
• Front & rear main seals
• Sealing rings (pump/input shaft/stator as required)
• Bushing set (incl. pump bushing)
• Intermediate (2–4) band
• New filter (2004-Up)
• Thrust washers, check balls, small parts assortment
***Not typically included: hard parts (sun shell, sprags/one-way clutches, pump halves, planets, separator plate, solenoids, EPC, TCC regulator valves). If you need any of these, message us and we can bundle.
Included Torque Converter — B-85 TMBX
• Lock-up converter for 4L60E/4L65E (2004-Up applications)
• OE-style stall for factory driveability
• Balanced & pressure-tested during remanufacture
• 30-spline input (fits applicable 2004-Up units using the TMBX style converter)
Always confirm your core tag/code (TMBX/B-85), spline count, and flexplate bolt pattern before ordering.
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Why this kit
• True “master” coverage: frictions/steels + pistons + bushings + band + filter + seals
• Fresh converter to pair with your rebuild (best practice for longevity)
• 2004-Up compatibility focus to match late-design pistons & components
• DIY-friendly & shop-ready contents for a thorough, dependable overhaul
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Installation notes (read before install)
• Flush or replace the cooler & lines to protect the new unit
• Soak frictions per manufacturer guidance before assembly
• Set endplay & clearances to spec; verify pump rotor/slide condition
• Use new transmission fluid of the correct spec; re-torque fasteners to OE values
• Professional installation recommended
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Warranty / Returns
• Parts are new.
• No returns on installed or contaminated parts. Returns must be unused, in original packaging.
• If a return is approved, buyer is responsible for return shipping.
• Contact us first—we’ll help with troubleshooting and avoid unnecessary returns.
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Shipping
• Ships FAST from Florida with FedEx/UPS Ground.
• The converter may ship separately for safety.
• Careful, protective packaging.
• Lower 48 states only; AK/HI/PR please message for a quote.
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What’s in the box (quick recap)
Master rebuild kit + B-85 TMBX torque converter for 4L60E/4L65E 2004-Up. Everything shown in photos is included.
Questions? Message us—happy to help confirm fitment for your VIN/RPO
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