# BD Diesel 14-21 Chevy/GMC 1500 Roadmaster 6L80 Transmission & Converter Package- (4WD)

The BD 6L80 Roadmaster transmission increases the reliability and longevity of stock or lightly modified trucks. Our remanufactured valve body has a new clutch select, and the TCC regulator valves eliminate sloppy shifting. Our deep sump oil pan will reduce heat and burnup of the clutches. A brand-new ProForce torque converter with a billet cover is included in every 6L80 Roadmaster Transmission Package.

-   New Billet ProForce Torque Converter which prevents notorious converter failure
-   New Cast Aluminum Transmission Oil Pan with an extra 2 quarts of fluid capacity
-   Machined bellhousing and pump surface to eliminate wear and pressure loss
-   New Clutch Select and TCC Regulator valve to eliminate sticky valves
-   Updated GM Forward Piston to prevent cracks, common on OEM piston
-   Updated GM Forward Piston to prevent cracks/common on OEM piston
-   New Pressure Regulator valve to prevent low line pressure
-   New TEHCM pressure switch seals and discs
-   Cleaned and tested TEHCM unit
-   New OEM clutches and steels
-   New Molded Pistons

This Part Fits:

Year

Make

Model

Submodel

2016-2021

Chevrolet

Silverado 1500

Custom

2019-2021

Chevrolet

Silverado 1500

Custom Trail Boss

2014-2021

Chevrolet

Silverado 1500

High Country

2015-2018

Chevrolet

Silverado 1500

LS

2014-2021

Chevrolet

Silverado 1500

LT

2019-2021

Chevrolet

Silverado 1500

LT Trail Boss

2014-2021

Chevrolet

Silverado 1500

LTZ

2019-2021

Chevrolet

Silverado 1500

RST

2015-2021

Chevrolet

Silverado 1500

SSV

2014-2021

Chevrolet

Silverado 1500

WT

2019

Chevrolet

Silverado 1500 LD

Custom

2019

Chevrolet

Silverado 1500 LD

LT

2019

Chevrolet

Silverado 1500 LD

WT

2015-2020

Chevrolet

Suburban

LS

2015-2020

Chevrolet

Suburban

LT

2015-2016

Chevrolet

Suburban

LTZ

2017-2020

Chevrolet

Suburban

Premier

2014

Chevrolet

Suburban 1500

LS

2014

Chevrolet

Suburban 1500

LT

2014

Chevrolet

Suburban 1500

LTZ

2014-2020

Chevrolet

Tahoe

LS

2014-2020

Chevrolet

Tahoe

LT

2014-2016

Chevrolet

Tahoe

LTZ

2014-2020

Chevrolet

Tahoe

PPV

2017-2020

Chevrolet

Tahoe

Premier

2014-2020

Chevrolet

Tahoe

SSV

2019-2021

GMC

Sierra 1500

AT4

2014-2021

GMC

Sierra 1500

Base

2014-2021

GMC

Sierra 1500

Denali

2019-2021

GMC

Sierra 1500

Elevation

2014-2021

GMC

Sierra 1500

SLE

2014-2021

GMC

Sierra 1500

SLT

2019

GMC

Sierra 1500 Limited

Base

2019

GMC

Sierra 1500 Limited

SLE

2014-2020

GMC

Yukon

SLE

2014-2020

GMC

Yukon

SLT

2015-2020

GMC

Yukon XL

SLE

2015-2020

GMC

Yukon XL

SLT

## Details

- **Price:** 6694.55 CAD
- **Vendor:** BD Diesel
- **Type:** Transmissions

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 6694.55 CAD | In stock |

## Images

- Photo - Primary
- Photo - Primary
- Photo - out of package
- Technical Bulletin
- Photo - Unmounted
- Photo - Unmounted
- Photo - out of package
- Photo - Unmounted
- Photo - out of package
- Logo Image

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/bd-diesel-14-21-chevy-gmc-1500-roadmaster-6l80-transmission-converter-package-4wd)
> Updated: 2026-06-26