







🚛 Drive with confidence—upgrade your transmission wiring and never get left behind!
The besttruck 1999-2003 Transmission Internal Wire Harness is a direct-fit replacement designed for GM & Allison 1000, 2000, and 2400 transmissions in Chevy Silverado and GMC Sierra trucks. Featuring a 6-solenoid, 20-pin connector setup, it uses premium copper wiring and high-temperature resistant polypropylene with a PVC sheath to ensure durability, corrosion resistance, and reliable electrical insulation. This harness prevents oil-induced connection failures that cause shift inhibit warnings and limp mode, helping you avoid costly repairs and downtime.
| Manufacturer | besttruck |
| Part number | 350-0072 |
| Item Weight | 200 g |
| Product Dimensions | 30.48 x 19.81 x 7.62 cm; 200 g |
| Item model number | 411511DR |
| Material | polypropylene |
| Included components | one 1999-2003 Transmission Internal Wire Harness |
| Batteries included? | No |
| Batteries Required? | No |
B**A
Good
Ordered as per my trans info but still was not 100% same. Had to cut and connect one wire from the old one to the new one. After that it worked.
S**P
This product lasted a week. Issue with wire insulation material.
The insulation that the wires are made of is not suitable for oil submergence.The oil made the wire insulation turn to a gummy like material.This needs to be addressed.
S**Y
Product worked great
Worked great for our RV. Easy to install and was an exact fit
G**.
Not wired wrong plugs in wrong place
Poor quality
Trustpilot
Hace 3 semanas
Hace 1 semana