Standard Ignition TM-45 Automatic Transmission Vacuum Modulator

Name: Standard Ignition TM-45 Automatic Transmission Vacuum Modulator
Brand: Standard Ignition
SKU: FBHK-TM-45
Price: 42.71 USD
Availability: OutOfStock

147 vehicles fit this part

Select your vehicle to confirm fitment

Verify this part fits before purchasing — free returns if it doesn't

$42.71Free Shipping

Free ShippingNo Cost to Continental U.S.

Free Returns*Wrong fit? No cost

60-Day ReturnsMoney back guarantee

*Free return shipping only qualifies if our fitment verification tool is used.

Out of Stock

OE Direct Replacement — Bolt-on fit, no modifications needed

Fitment: Pontiac, Buick, Chevrolet, GMC, Oldsmobile, and Cadillac, Parisienne, LeSabre, Regal, Electra, Estate Wagon, C10, G10, G20, G30, K5 Blazer, Malibu, C1500, G1500, G2500, Jimmy, Custom Cruiser, Delta 88, Toronado, Century, Caprice, Impala, Cutlass Cruiser, Bonneville, Grand LeMans, Laurentian, LeMans, Riviera, DeVille, Fleetwood, Camaro, El Camino, Monte Carlo, Cutlass Calais, Catalina, Cutlass, Cutlass Salon, Cutlass Supreme, Firebird, Grand Prix, Skyhawk, Skylark, Cutlass Tiara, Omega, Astre, Sunbird, Ventura, and Starfire

Easy Returns — Return within 60 days for a full refund

Fast Shipping — Most orders ship same business day before 1pm CST

Not what you need? See all Automatic Transmission Vacuum Modulator options

Overview of Standard Ignition TM-45 Vacuum Modulator

The Standard Ignition TM-45 Automatic Transmission Vacuum Modulator is designed for reliable performance in a range of GM vehicles. Engineered with a brass finish and two hose connectors, this modulator ensures precise vacuum control for automatic transmissions in select Buick, Chevrolet, Pontiac, and other models.

Durable brass construction for corrosion resistance
Equipped with two hose connectors for secure vacuum line attachment
Compatible with multiple GM makes and models including Buick, Cadillac, Chevrolet, GMC, Oldsmobile, and Pontiac
Part number TM-45 for easy identification and replacement

Product Details and Specifications

The TM-45 vacuum modulator from Standard Ignition features a brass finish that provides enhanced durability and resistance to wear caused by heat and exposure to transmission fluids. The two hose connectors allow for straightforward installation and secure vacuum line connections, which are critical for maintaining proper transmission shift timing and performance. This modulator is specifically designed for automatic transmissions and is compatible with a wide range of GM vehicles such as the Chevrolet Camaro, Buick LeSabre, Pontiac Firebird, and Cadillac DeVille, among others.

Compatible Vehicles and Applications

This automatic transmission vacuum modulator is compatible with the following makes and models:

Buick: LeSabre, Century, Regal, Skylark, and more
Cadillac: DeVille, Fleetwood
Chevrolet: Camaro, Impala, Monte Carlo, C10, C1500, El Camino
GMC: Jimmy, K5 Blazer, G10, G20, G30
Oldsmobile: Cutlass, Cutlass Supreme, Delta 88, 88, 98
Pontiac: Bonneville, Firebird, Grand Prix, Catalina, Parisienne

Common Issues Addressed by TM-45 Vacuum Modulator

Irregular or harsh transmission shifting
Delayed or slipping gear engagement
Vacuum leaks causing transmission performance problems
Transmission failure to downshift properly
Erratic or inconsistent transmission behavior under load

Installation Notes and Tips

Ensure vacuum lines are clean and free of cracks before installation
Verify correct hose routing according to vehicle service manual
Use appropriate tools to avoid damaging brass connectors during installation
Check for vacuum leaks after installation to confirm proper sealing
Consult vehicle-specific transmission diagrams for precise fitment

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM specifications. The TM-45 vacuum modulator undergoes rigorous quality control to ensure reliable operation and durability. While specific warranty terms may vary, Standard Ignition typically offers a limited warranty covering defects in material and workmanship. Refer to the product documentation for detailed warranty information.

Brand	Standard Ignition
Part Number	TM-45
Part Finish	Brass

This part fits 147 vehicles. Search below:

Year	Make	Model	Body Type	Liters	Cylinders	Fuel Type	Position	Notes
1984	Pontiac	Parisienne		5.0L	V8		N/A
1983	Buick	LeSabre		4.1L	V6		N/A
1983	Buick	Regal		4.1L	V6		N/A
1982	Buick	LeSabre		4.1L	V6		N/A
1982	Buick	LeSabre		5.0L	V8		N/A
1982	Buick	Regal		4.1L	V6		N/A
1982	Chevrolet	C10		5.0L	V8		N/A
1982	Chevrolet	G10		5.0L	V8		N/A
1982	Chevrolet	G20		5.0L	V8		N/A
1982	Chevrolet	G30		5.0L	V8		N/A
1982	Chevrolet	K5 Blazer		5.0L	V8		N/A
1982	Chevrolet	Malibu		4.4L	V8		N/A
1982	GMC	C1500		5.0L	V8		N/A
1982	GMC	G1500		5.0L	V8		N/A
1982	GMC	G2500		5.0L	V8		N/A
1982	GMC	Jimmy		5.0L	V8		N/A
1982	Oldsmobile	Custom Cruiser		5.0L	V8		N/A
1982	Oldsmobile	Delta 88		5.0L	V8		N/A
1982	Oldsmobile	Toronado		5.0L	V8		N/A
1981	Buick	Century		5.7L	V8		N/A	w/ Int. EGR
1981	Buick	LeSabre		5.0L	V8		N/A
1981	Buick	LeSabre		5.7L	V8		N/A	w/ Int. EGR; w/ Federal Emissions
1981	Buick	LeSabre		4.1L	V6		N/A
1981	Buick	Regal		3.8L	V6		N/A
1981	Chevrolet	C10		5.0L	V8		N/A
1981	Chevrolet	Caprice		5.7L	V8	DIESEL	N/A	w/ Int. EGR; w/ Calif. Emissions
1981	Chevrolet	Impala		4.4L	V8		N/A
1981	Chevrolet	Impala		5.7L	V8	DIESEL	N/A	w/ Int. EGR
1981	Chevrolet	K5 Blazer		5.0L	V8		N/A
1981	Chevrolet	Malibu		4.4L	V8		N/A
1981	GMC	C1500		5.0L	V8		N/A
1981	GMC	Jimmy		5.0L	V8		N/A
1981	Oldsmobile	Custom Cruiser		5.0L	V8		N/A
1981	Oldsmobile	Custom Cruiser		5.7L	V8		N/A	w/ Int. EGR; w/ Federal Emissions
1981	Oldsmobile	Cutlass Cruiser		5.0L	V8		N/A
1981	Oldsmobile	Delta 88		5.7L	V8		N/A	w/ Int. EGR
1981	Oldsmobile	Delta 88	Sedan	5.0L	V8		N/A	Universal
1981	Oldsmobile	Toronado		5.7L	V8		N/A	w/ Brown Stripe
1981	Oldsmobile	Toronado		5.0L	V8		N/A	w/ Brown Stripe
1981	Pontiac	Bonneville		5.7L	V8		N/A	Compatible with vehicles equipped with Federal Emissions.
1981	Pontiac	Grand LeMans		4.9L	V8		N/A
1981	Pontiac	Laurentian		5.7L	V8		N/A	Compatible with vehicles equipped with Federal Emissions.
1981	Pontiac	LeMans		4.9L	V8		N/A
1981	Pontiac	Parisienne		5.7L	V8		N/A	Compatible with vehicles equipped with Federal Emissions.
1980	Buick	Century		3.8L	V6		N/A
1980	Buick	LeSabre		5.7L	V8		N/A
1980	Buick	LeSabre		5.7L	V8		N/A	OE Style Tire Pressure Monitoring System Sensor Clip
1980	Buick	LeSabre		4.1L	V6		N/A
1980	Buick	LeSabre		3.8L	V6		N/A
1980	Buick	LeSabre		5.7L	V8		N/A	Fits vehicles equipped with California emissions.
1980	Buick	Regal		3.8L	V6		N/A
1980	Buick	Riviera		3.8L	V6		N/A	w/ Brown Stripe
1980	Buick	Riviera		5.7L	V8		N/A	w/ Brown Stripe
1980	Buick	Riviera		5.0L	V8		N/A	w/ Brown Stripe
1980	Cadillac	DeVille		4.1L	V6		N/A
1980	Cadillac	Fleetwood		4.1L	V6		N/A
1980	Chevrolet	C10		5.0L	V8		N/A
1980	Chevrolet	Camaro		4.4L	V8		N/A
1980	Chevrolet	Caprice		4.4L	V8		N/A
1980	Chevrolet	El Camino		4.4L	V8		N/A
1980	Chevrolet	G10		5.0L	V8		N/A
1980	Chevrolet	G20		5.0L	V8		N/A
1980	Chevrolet	Impala		4.4L	V8		N/A
1980	Chevrolet	K5 Blazer		5.0L	V8		N/A
1980	Chevrolet	Malibu		4.4L	V8		N/A
1980	Chevrolet	Monte Carlo		3.8L	V6		N/A
1980	Chevrolet	Monte Carlo		4.4L	V8		N/A
1980	GMC	C1500		5.0L	V8		N/A
1980	GMC	G1500		5.0L	V8		N/A
1980	GMC	Jimmy		5.0L	V8		N/A
1980	Oldsmobile	Custom Cruiser		5.0L	V8		N/A
1980	Oldsmobile	Cutlass Calais		5.7L	V8		N/A
1980	Oldsmobile	Delta 88		5.7L	V8		N/A
1980	Oldsmobile	Delta 88		5.0L	V8		N/A
1980	Oldsmobile	Toronado					N/A	w/ Brown Stripe
1980	Pontiac	Bonneville		5.7L	V8		N/A
1980	Pontiac	Catalina		5.7L	V8		N/A
1980	Pontiac	Laurentian		5.7L	V8		N/A
1980	Pontiac	Parisienne		5.7L	V8		N/A
1979	Buick	Century		3.8L	V6		N/A
1979	Buick	LeSabre		3.8L	V6		N/A
1979	Buick	LeSabre		5.7L	V8		N/A
1979	Buick	Regal		3.8L	V6		N/A
1979	Oldsmobile	Custom Cruiser		6.6L	V8		N/A	w/o High Altitude Emissions
1979	Oldsmobile	Custom Cruiser		5.7L	V8		N/A	w/o High Altitude Emissions
1979	Oldsmobile	Cutlass		5.7L	V8		N/A	Fits vehicles equipped with California emissions.
1979	Oldsmobile	Cutlass Salon		5.7L	V8		N/A	Fits vehicles equipped with California emissions.
1979	Oldsmobile	Cutlass Supreme		5.7L	V8		N/A	Fits vehicles equipped with California emissions.
1979	Pontiac	Bonneville		5.7L	V8		N/A
1979	Pontiac	Bonneville		6.6L	V8		N/A	w/o High Altitude Emissions
1979	Pontiac	Catalina		6.6L	V8		N/A	w/o High Altitude Emissions
1979	Pontiac	Catalina		5.7L	V8		N/A	w/o High Altitude Emissions
1979	Pontiac	Parisienne		5.7L	V8		N/A	w/o High Altitude Emissions
1978	Buick	LeSabre		3.8L	V6		N/A
1978	Buick	LeSabre		5.7L	V8		N/A
1978	Buick	Regal		3.8L	V6		N/A
1978	Buick	Riviera		6.6L	V8		N/A	w/o High Altitude Emissions
1978	Buick	Riviera		5.7L	V8		N/A	Compatible with vehicles equipped with High Altitude Emissions.
1978	Oldsmobile	Custom Cruiser		6.6L	V8		N/A	w/o High Altitude Emissions
1978	Pontiac	Bonneville		6.6L	V8		N/A	w/o High Altitude Emissions
1978	Pontiac	Catalina		6.6L	V8		N/A	w/o High Altitude Emissions
1978	Pontiac	Catalina		5.7L	V8		N/A
1978	Pontiac	Firebird		6.6L	V8		N/A	w/o High Altitude Emissions
1977	Buick	Century		6.6L	V8		N/A	w/o High Altitude Emissions
1977	Buick	Century		5.7L	V8		N/A
1977	Buick	LeSabre		6.6L	V8		N/A	w/o High Altitude Emissions
1977	Buick	LeSabre		5.7L	V8		N/A
1977	Buick	Regal		5.7L	V8		N/A
1977	Buick	Riviera		6.6L	V8		N/A	w/o High Altitude Emissions
1977	Buick	Riviera		5.7L	V8		N/A
1977	Oldsmobile	Custom Cruiser		5.7L	V8		N/A
1977	Oldsmobile	Cutlass Supreme		6.6L	V8		N/A	w/o High Altitude Emissions
1977	Oldsmobile	Delta 88		6.6L	V8		N/A	w/o High Altitude Emissions
1977	Pontiac	Grand LeMans		6.6L	V8		N/A	w/o High Altitude Emissions
1977	Pontiac	Grand Prix		5.7L	V8		N/A
1977	Pontiac	Grand Prix		6.6L	V8		N/A	w/o High Altitude Emissions
1976	Buick	Century		3.8L	V6		N/A
1976	Buick	Century		5.7L	V8		N/A
1976	Buick	LeSabre		5.7L	V8		N/A
1976	Buick	LeSabre		3.8L	V6		N/A
1976	Buick	Regal					N/A
1976	Buick	Riviera					N/A
1976	Buick	Skyhawk		3.8L	V6		N/A
1976	Buick	Skylark					N/A
1976	Oldsmobile	Cutlass		4.1L	L6		N/A
1976	Oldsmobile	Cutlass		4.3L	V8		N/A
1976	Oldsmobile	Cutlass		5.7L	V8		N/A
1976	Oldsmobile	Cutlass Salon		4.3L	V8		N/A
1976	Oldsmobile	Cutlass Salon		5.7L	V8		N/A
1976	Oldsmobile	Cutlass Supreme		4.3L	V8		N/A
1976	Oldsmobile	Cutlass Supreme		4.1L	L6		N/A
1976	Oldsmobile	Delta 88		5.7L	V8		N/A
1976	Oldsmobile	Omega		4.1L	L6		N/A
1976	Oldsmobile	Omega		4.3L	V8		N/A
1976	Pontiac	Bonneville		6.6L	V8		N/A
1976	Pontiac	Firebird		4.1L	L6		N/A
1976	Pontiac	Firebird		5.7L	V8		N/A
1976	Pontiac	Firebird		6.6L	V8		N/A
1976	Pontiac	Grand LeMans		5.7L	V8		N/A
1976	Pontiac	Grand LeMans		4.1L	L6		N/A
1976	Pontiac	Grand Prix		6.6L	V8		N/A
1976	Pontiac	Grand Prix		5.7L	V8		N/A
1976	Pontiac	LeMans		4.1L	L6		N/A
1976	Pontiac	LeMans		5.7L	V8		N/A
1976	Pontiac	Sunbird					N/A	w/ Brown Stripe
1975	Buick	Skyhawk		3.8L	V6		N/A
1975	Oldsmobile	Starfire		3.8L	V6		N/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

30336397R100389057796FM2320TM58TM950VM513VM636

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.