6L90 Performance Transmission RM1 Series .4DHA
.4DHA
6L90 Performance Transmission RM1 Series .4DHA6L90 (V8 6.0L)(4WD) Chevy/GMC 2500HD 20ART45HBRM1.4DHA

GM

6L90 Performance Transmission RM1 Series .4DHA

Part No.
ART45HBRM1

6L90 (V8 6.0L)(4WD) Chevy/GMC 2500HD 20

6-speed

Performance

Automatic

Transmission with Torque Converter

Recommended Use:

Recommended for engine mods or tuners up to 80 HP over stock. The RM1 series is a great choice for daily work trucks and plowing or towing trucks with a larger turbo, injectors and/or 5th wheel hitches.

Image Disclaimer: Image may not be an exact representation of the shipped product.

Transmission Search
Changhe
Tremec
Search by Transmission
Select Make
Select Unit
Product Details

Roadmaster remanufactures premium 6L90 Performance Transmission RM1 Series .4DHA units. ART45HBRM1 is an RM1 series transmission designed for daily work trucks that have been upgraded as much as 80hp beyond stock units and also features a remanufactured torque converter.

Reference Numbers:

.4DHA

ART45HBRM1

.6DHA

RMP45HBRM1

4DHA

RT45HB

6DHA

T8221AAR1000

Product Advantages
  • DEEP ALUMINUM OIL PAN
  • 4-5-6 EXTRA CLUTCH BACKING PLATE
  • BILLET COVER & PISTON RV STALL
  • HD UPGRADE KIT
  • BILLET PUMP ROTOR KIT
  • Remanufactured in the USA

Related Products

Where To Buy

Roadmaster transmissions are available from Whatever It Takes Transmission Parts' nationwide locations. Choose your state below to find the location nearest you.