Home / Shop / Hypertech ThermoMaster Computer Chips 120712 Chip/Module, ThermoMaster, GM, RV, 7.4L, Automatic Transmission, TBI, Each

Hypertech ThermoMaster Computer Chips 120712 Chip/Module, ThermoMaster, GM, RV, 7.4L, Automatic Transmission, TBI, Each

SKU: HYP120712

Computer Chips and Modules

Hypertech

Hypertech ThermoMaster Computer Chips 120712 Chip/Module, ThermoMaster, GM, RV, 7.4L, Automatic Transmission, TBI, Each

SKU: HYP120712

Computer Chips and Modules

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Description

Hypertech ThermoMaster Power Chips replace your stock PROM, which holds the settings for fuel flow and spark advance. This is a Stage 2 chip that optimizes the spark and fuel curves for max performance. The ThermoMaster Power Chip is designed for use with a 160 deg. thermostat and premium pump gas (91 Octane or better). Maximize the performance of your ride with a Hypertech ThermoMaster Power Chip!

Part Type

Computer Chips and Modules

Data: v4.2 - Upd: 2026-10-14 09:10:08

Specifications

Product Attributes - Brand: Hypertech
Product Attributes - Manufacturer's Part Number: 120712
Product Attributes - Part Type: Computer Chips and Modules
Product Attributes - Product Line: Hypertech ThermoMaster Computer Chips
Product Attributes - UPC: 759609004369
Product Attributes - Remanufactured: No
Product Attributes - Quantity: Sold individually.
Product Attributes - Notes: Designed to fit 1990 Chevy/GMC motor homes with 7.4L engine and TH400 automatic transmission.

Reference Information

Brand Name/s	Hypertech
StreetFX SKU	hyp120712
SFX Item ID	5087425
Supplier Item Code	5087425
Manufacturer SKU	120712
Manufacturer UPC	759609004369
Alternative References	7.4L

Compatibility

Application Data

Make GMC
Model K3500
Submodel SIERRA
Beginning Year 1990
Ending Year 1990
Engine Type V8
Liter 7.4
CID 454
Engine Family Chevy big block Mark IV
Engine Size 7.4L/454
Transmission Manual
Drivetrain 4WD
Engine VIN Code N
Make GMC
Model K3500
Submodel SIERRA SLE
Beginning Year 1990
Ending Year 1990
Engine Type V8
Liter 7.4
CID 454
Engine Family Chevy big block Mark IV
Engine Size 7.4L/454
Transmission Automatic
Drivetrain 4WD
Engine VIN Code N
Make GMC
Model K3500
Submodel SIERRA SLE
Beginning Year 1990
Ending Year 1990
Engine Type V8
Engine Family Chevy big block Mark IV
Engine Size 7.4L/454
Transmission Manual
Liter 7.4
CID 454
Drivetrain 4WD
Engine VIN Code N
Make GMC
Model K3500
Submodel SIERRA SLX
Beginning Year 1990
Ending Year 1990
Engine Type V8
Liter 7.4
CID 454
Engine Family Chevy big block Mark IV
Engine Size 7.4L/454
Transmission Automatic
Drivetrain 4WD
Engine VIN Code N
Make GMC
Model K3500
Submodel SIERRA SLX
Beginning Year 1990
Ending Year 1990
Engine Type V8
Liter 7.4
CID 454
Engine Family Chevy big block Mark IV
Engine Size 7.4L/454
Transmission Manual
Drivetrain 4WD
Engine VIN Code N
Make GMC
Model P3500
Submodel BASE
Beginning Year 1990
Ending Year 1990
Engine Type V8
Engine Family Chevy big block Mark IV
Engine Size 7.4L/454
Transmission Automatic
Liter 7.4
CID 454
Drivetrain RWD
Engine VIN Code N
Make GMC
Model P3500
Submodel BASE
Beginning Year 1990
Ending Year 1990
Engine Type V8
Liter 7.4
CID 454
Engine Family Chevy big block Mark IV
Engine Size 7.4L/454
Transmission Manual
Drivetrain RWD
Engine VIN Code N
Make GMC
Model P3500
Submodel BASE
Beginning Year 1990
Ending Year 1990
Engine Type V8
Liter 7.4
CID 454
Engine Family Chevy big block Mark IV
Engine Size 7.4L/454
Transmission Automatic
Drivetrain RWD
Engine VIN Code N
Make GMC
Model P3500
Submodel VALUE VAN
Beginning Year 1990
Ending Year 1990
Engine Type V8
Engine Family Chevy big block Mark IV
Engine Size 7.4L/454
Transmission Automatic
Liter 7.4
CID 454
Drivetrain RWD
Engine VIN Code N
Make GMC
Model P3500
Submodel VALUE VAN
Beginning Year 1990
Ending Year 1990
Engine Type V8
Liter 7.4
CID 454
Engine Family Chevy big block Mark IV
Engine Size 7.4L/454
Transmission Manual
Drivetrain RWD
Engine VIN Code N
Make GMC
Model P3500
Submodel VALUE VAN
Beginning Year 1990
Ending Year 1990
Engine Type V8
Liter 7.4
CID 454
Engine Family Chevy big block Mark IV
Engine Size 7.4L/454
Transmission Automatic
Drivetrain 4WD
Engine VIN Code N
Make CHEVROLET
Model K3500
Submodel CHEYENNE
Beginning Year 1990
Ending Year 1990
Engine Type V8
Engine Family Chevy big block Mark IV
Engine Size 7.4L/454
Transmission Automatic

Make	CHEVROLET
Model	K3500
Submodel	SCOTTSDALE
Beginning Year	1990
Ending Year	1990
Engine Type	V8
Liter	7.4
CID	454
Engine Family	Chevy big block Mark IV
Engine Size	7.4L/454
Transmission	Automatic
Drivetrain	4WD
Engine VIN Code	N

Make	CHEVROLET
Model	K3500
Submodel	SCOTTSDALE
Beginning Year	1990
Ending Year	1990
Engine Type	V8
Liter	7.4
CID	454
Engine Family	Chevy big block Mark IV
Engine Size	7.4L/454
Transmission	Manual
Drivetrain	4WD
Engine VIN Code	N

Make CHEVROLET
Model K3500
Submodel SCOTTSDALE
Beginning Year 1990
Ending Year 1990
Engine Type V8
Engine Family Chevy big block Mark IV
Engine Size 7.4L/454
Transmission Automatic

Make	CHEVROLET
Model	K3500
Submodel	SILVERADO
Beginning Year	1990
Ending Year	1990
Engine Type	V8
Liter	7.4
CID	454
Engine Family	Chevy big block Mark IV
Engine Size	7.4L/454
Transmission	Automatic
Drivetrain	4WD
Engine VIN Code	N

Make	CHEVROLET
Model	K3500
Submodel	SILVERADO
Beginning Year	1990
Ending Year	1990
Engine Type	V8
Liter	7.4
CID	454
Engine Family	Chevy big block Mark IV
Engine Size	7.4L/454
Transmission	Manual
Drivetrain	4WD
Engine VIN Code	N

Make CHEVROLET
Model K3500
Submodel SILVERADO
Beginning Year 1990
Ending Year 1990
Engine Type V8
Engine Family Chevy big block Mark IV
Engine Size 7.4L/454
Transmission Automatic
Make GMC
Model C3500
Submodel SIERRA
Beginning Year 1990
Ending Year 1990
Engine Type V8
Liter 7.4
CID 454
Engine Family Chevy big block Mark IV
Engine Size 7.4L/454
Transmission Automatic
Drivetrain RWD
Engine VIN Code N
Make GMC
Model C3500
Submodel SIERRA
Beginning Year 1990
Ending Year 1990
Engine Type V8
Liter 7.4
CID 454
Engine Family Chevy big block Mark IV
Engine Size 7.4L/454
Transmission Manual
Drivetrain RWD
Engine VIN Code N
Make GMC
Model C3500
Submodel SIERRA SLE
Beginning Year 1990
Ending Year 1990
Engine Type V8
Liter 7.4
CID 454
Engine Family Chevy big block Mark IV
Engine Size 7.4L/454
Transmission Automatic
Drivetrain RWD
Engine VIN Code N
Make GMC
Model C3500
Submodel SIERRA SLE
Beginning Year 1990
Ending Year 1990
Engine Type V8
Liter 7.4
CID 454
Engine Family Chevy big block Mark IV
Engine Size 7.4L/454
Transmission Manual
Drivetrain RWD
Engine VIN Code N
Make GMC
Model C3500
Submodel SIERRA SLX
Beginning Year 1990
Ending Year 1990
Engine Type V8
Liter 7.4
CID 454
Engine Family Chevy big block Mark IV
Engine Size 7.4L/454
Transmission Automatic
Drivetrain RWD
Engine VIN Code N
Make GMC
Model C3500
Submodel SIERRA SLX
Beginning Year 1990
Ending Year 1990
Engine Type V8
Liter 7.4
CID 454
Engine Family Chevy big block Mark IV
Engine Size 7.4L/454
Transmission Manual
Drivetrain RWD
Engine VIN Code N
Make GMC
Model K3500
Submodel SIERRA
Beginning Year 1990
Ending Year 1990
Engine Type V8
Liter 7.4
CID 454
Engine Family Chevy big block Mark IV
Engine Size 7.4L/454
Transmission Automatic
Drivetrain 4WD
Engine VIN Code N

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Hypertech ThermoMaster Computer Chips 120712 Chip/Module, ThermoMaster, GM, RV, 7.4L, Automatic Transmission, TBI, Each

Hypertech ThermoMaster Computer Chips 120712 Chip/Module, ThermoMaster, GM, RV, 7.4L, Automatic Transmission, TBI, Each

Description

Part Type

Specifications

Reference Information

Compatibility

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