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Find Transmission & Transfer Case for your Sierra 2500

B&M Street/Strip 4L80E Automatic Transmission (01-06 2WD Sierra 2500 HD)Find parts that fit my vehicle

Item HG50804
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$4,049.95 each

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      Product Information

      Features, Description, Q&A, Specs & Installation

      Features

      • B&M Street/Strip 4L80E Automatic Transmission
      • Upgraded Clutch Packs and Bands
      • Performance Sprag One-Way Clutch
      • Reinforced Planetary Gear Set
      • Precision-Balanced Torque Converter Compatibility
      • Calibrated Valve Body for Crisp Shifts
      • Heavy-Duty Cast Aluminum Case
      • Complete Drop-In Assembly
      • Fits 2001–2006 Two-Wheel-Drive Sierra 2500 HD

      Description

      Performance-Oriented Durability. This Street/Strip transmission features race-tested internals—upgraded clutch materials and a heavy-duty sprag clutch—for consistent, firm shifts under hard acceleration. It handles higher torque loads without slip or fade, making it ideal for both street and strip applications.

      Comprehensive, Reliable. Supplied as a fully assembled unit with calibrated valve body and torque converter compatibility, this transmission drops into the factory location without additional machining or modifications. The heavy-duty case and balanced internals ensure long life under extreme conditions.

      Installation. This product replaces the factory 4L80E assembly using existing mounts and linkages—no frame or crossmember changes needed.

      Application. This B&M Street/Strip 4L80E Transmission fits 2001–2006 two-wheel-drive Sierra 2500 HD vehicles.

      B&M 118002BM

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      Installation & What's in the Box

      Installation Info

      Installation Time

      (approx) 6 Hours

      Difficulty Level:

      Mechanical expertise or professional installation required.

      Installation Guides

        No guide available for this part yet.

      What's in the Box

      • (1) Transmission
      • (1) Installation manual

      Questions & Answers

      No questions about this product yet. Ask the First Question

      Will It Fit My Sierra 2500

      • 6.0L V8 - 01, 02, 03, 04, 05, 06
      • 6.6L V8 Duramax - 01, 02, 03, 04, 05, 06
      • 8.1L V8 - 01, 02, 03, 04, 05, 06