Vehicle Fitment

Make	Model	Year
Cadillac	Escalade	2002-2003
Chevy	CK Pickup	1993-2000
	Express	1996-2009
	G-Series	1993-1996
	P-Series	1993-1999
	Silverado 1500	2001-2003, 2005
	Silverado 2500	1999-2007
	Silverado 3500	2001-2006
	Suburban	1993-2007
	Tahoe	1995-1999
GMC	CK Pickup	1993-2000
	G-Series	1993-1996
	P-Series	1993-1999
	Savana	1996-2009
	Sierra 1500	2001-2006
	Sierra 2500	1999-2007
	Sierra 3500	2001-2006
	Suburban	1993-1999
	Yukon	1993-1998, 2000-2007
	Yukon Denali	1999, 2001-2003

Product Details

Internal Wiring Harness by B&M®. The internal wiring harness for GM 4L80E transmissions is located inside the transmission pan where the wires, the loom and connectors are constantly exposed to high temperatures, mechanical vibration and transmission fluid. Over time, these parts can get hard and brittle, increasing the possibility of having potential issues down the road. For optimum performance, B&M offers this high quality "plug and play" replacement harness for all 1994-2003 GM 4L80E transmissions. Features include all new wiring, polyethylene wire loom, new factory style connectors, temperature sensor, rubber O-ring seal and installation instructions. Note: Can also be used on 1991-1993 4L80E models, but will require either an updated external connector to plug into the internal wiring harness, or add a B&M Shift Plus 2 controller part #120001 that allows you advanced control features to custom tune shift points, torque convertor lock-up, manual mode and more.

Features

Replaces 4L80E automatic transmission wiring harnesses
All New Factory Style Connectors
Includes New Temperature Sensor
Plug and Play Installation
New O-Ring Seal

B&M has always been the choice for performance and dependability. Racers themselves, B&M’s founders identified the needs of local racers and street performance enthusiasts around the world, and developed products to fill as many needs as possible. All B&M products are extremely robust and will endure the test of time to give you the most for your money. Whether you have a damaged, broken, or lost part, we’ve got a comprehensive collection of replacements to restore the effective operation of your B&M shifter. All parts are designed to ensure a precise fit and they’re fairly easy to install. Besides, they are waiting for you at a price that everyone can afford!

B&M® specializes in performance automatic transmissions, torque converters, SFI-approved flexplates, legendary automatic shifters, precision manual shifters, and many other transmission products, including cast deep aluminum transmission pans, transmission coolers, and automatic transmission fluids. B&M Racing and Performance has been at the vanguard of the growing automotive aftermarket since the early 1950s. Racers themselves, B&M’s founders identified the needs of local racers and street performance enthusiasts and developed products to fill those needs. As the industry grew, so did B&M. And as racers went faster, B&M developed products to help them break the records they just set.

Brand:

B&M

Part Number:

120003

UPC:

792898001626

Alternate MPN:

120003

Warranty

Lifetime Limited Warranty applies to all B&M shifters, differential covers and cast aluminum pans.

One-Year Limited Warranty applies to B&M coolers, shifter related accessories (knobs, handles, etc.), torque converters, flexplates, dipsticks, stamped steel pans and other transmission related accessories (except racing products).

90-Day Limited Warranty applies to B&M transmissions, launch control kits and all electrical components (switches, lights, solenoids).

B&M Racing & Performance (“B&M”) extends the following limited warranty to the original purchaser of its shifters, pans, coolers, transmissions, components and accessories (hereafter “products”).

B&M warrants the products mentioned above against defects in materials and workmanship for the period set forth below, when they are owned by the original purchaser and remain installed on the vehicle on which they were originally installed. This warranty is void if the product was not installed properly on the vehicle, was installed on a vehicle for which it was not designed, or was removed from the vehicle on which it was originally installed and reinstalled on another vehicle. This warranty shall not apply to normal wear (bushings, springs, etc.), cosmetic issues such as coatings and material discoloration, or any product that was installed on a racing vehicle (excluding shifters), installed contrary to B&M instructions, or altered, misused, repaired, damaged from an accident, collision, undercarriage road impact or debris, or willful or negligent act.

The warranty set forth herein for all B&M shifters, differential covers and cast aluminum pans extends for a period of the life of the original vehicle the product was installed on. The warranty set forth herein for B&M coolers, shifter related accessories (knobs, handles, etc.), torque converters, flexplates, dipsticks, stamped steel pans and other transmission related accessories (except racing products) extends for a period of one year from the date of original purchase and the original vehicle it was installed on. The warranty set forth herein for B&M transmissions, launch control kits and all electrical components (switches, lights, solenoids) extends for a period of 90 days from the date of original purchase and the original vehicle it was installed on.

B&M’s liability is expressly limited to the replacement of the product or refund of the purchase price as described herein. B&M shall have no liability for the cost of installation or removal of the defective product, the cost of labor or any additional parts required to complete the installation of the replacement product. In no event shall B&M be liable for any direct, indirect, special, incidental and/or consequential losses or damages, including but not limited to interruption of business or loss of business or loss of profit or damage to related components resulting from the use of or inability to use the product, or any breach of warranty or any defect in the product, even if B&M shall have been advised of the possibility of such potential losses or damages. Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you. This warranty gives you specific legal rights. You may also have other rights which may vary from state to state.

The warranties set forth herein are exclusive and unless otherwise required by applicable law, no other warranties are made by B&M or are authorized to be made with respect to the product.

Magnuson-Moss Warranty Act:

Legally, a vehicle manufacturer cannot void the warranty on a vehicle due to an aftermarket part unless they can prove that the aftermarket part caused or contributed to the failure in the vehicle (per the Magnuson Moss Warranty Act (15 U.S.C. 2302(C)) Learn More

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B&M® - Internal Wiring Harness

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