Xcalliber

Xcalliber has specialized in repairing, replacing, and upgrading Allison transmissions since 1984 and offers a full line of stock and performance parts. Whether you have a GM Duramax truck or a fleet of commercial vehicles, Xcalliber has you covered.

Want to save money on parts for Allison transmissions?
Xcalliber offers cost-effective options, including new parts, rebuilt Allison parts, good used Allison parts, and surplus Allison parts.

Xcalliber offers:
• Rebuild Kits
• TCMs
• Solenoids
• Sensors
• Clutches
• Filters
• Flywheels
• Bushings
• Bearings
• Hard Parts
• Soft Parts
• Coolers
• Shifters

Xcalliber builds dyno-tested renewed Allison transmissions:
• 10L1000 Allison Transmissions
• 1000 / 2000 Allison Transmissions
• MD / 3000 / 3500 Allison Transmissions
• HD / 4000 / 4500 Allison Transmissions
• Legacy Allison Transmissions

For increased HP and torque, Xcalliber has performance parts and upgraded Allison transmissions for LB7, LLY, LBZ, LMM, LML, and L5P trucks.