Standard Ignition TS-621 Cold Advance Solenoid Engine Coolant Temperature Switch

Name: Standard Ignition TS-621 Cold Advance Solenoid Engine Coolant Temperature Switch
Brand: Standard Ignition
SKU: FBHK-TS-621
Price: 118.58 USD
Availability: InStock

261 vehicles fit this part

Select your vehicle to confirm fitment

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In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.

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

Fitment: Chevrolet and GMC, C1500, C2500, C3500, G20, G30, K1500, K2500, K3500, P30, G2500, G3500, P3500, Blazer, R1500 Suburban, R2500 Suburban, R3500, V1500 Suburban, V2500 Suburban, V3500, Jimmy, P20, R2500, P2500, R10 Suburban, R20, R20 Suburban, R30, V20 Suburban, V30, R10, V10, V10 Suburban, V20, R1500, V1500, V2500, C10, C10 Suburban, C20, C20 Suburban, C30, K10, K10 Suburban, K20, K20 Suburban, K30, K5 Blazer, C1500 Suburban, C2500 Suburban, K1500 Suburban, and K2500 Suburban

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

Not what you need? See all Cold Advance Solenoid Engine Coolant Temperature Switch options

Overview of Standard Ignition Cold Advance Solenoid

The Standard Ignition TS-621 Cold Advance Solenoid Engine Coolant Temperature Switch is designed for reliable operation in Chevrolet and GMC vehicles. This bolt-on solenoid features a male plug-in connector and blade terminals, ensuring secure and efficient electrical connections.

Bolt-on attachment method for straightforward installation
Single male round plug-in connector for compatibility
Two male blade terminals for stable electrical contact
Engine coolant temperature switch functionality for cold advance control
Compatible with a wide range of Chevrolet and GMC models including Blazer, C10, K5 Blazer, and Suburban series

Detailed Product Description

The TS-621 cold advance solenoid from Standard Ignition is engineered to regulate engine timing based on coolant temperature. Its bolt-on design allows for easy replacement without the need for extensive modifications. The solenoid includes a single male round plug-in connector and two male blade terminals, which provide a secure and reliable electrical interface. This part is specifically compatible with Chevrolet and GMC trucks and SUVs such as the C10, C20, K10, K20, and various Suburban models, ensuring proper fitment and function.

Applications and Problem Resolution

Helps maintain optimal engine timing during cold starts
Prevents engine performance issues related to incorrect timing advance
Addresses engine stalling or rough idling caused by faulty coolant temperature switches
Reduces emissions by ensuring proper timing control
Improves fuel efficiency by regulating timing advance accurately

Installation Notes and Tips

Ensure the vehicle is cool before beginning installation to avoid injury
Use the bolt-on attachment method to secure the solenoid firmly in place
Verify the connector is the correct male round plug-in type for your vehicle
Check that the two male blade terminals are properly seated to prevent electrical issues
Consult the vehicle’s service manual for specific torque specifications and wiring diagrams

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM specifications, providing dependable performance and durability. The TS-621 cold advance solenoid undergoes rigorous quality control to ensure consistent operation. Warranty coverage details should be confirmed with the distributor or vehicle manufacturer, as they may vary by region and application.

Brand	Standard Ignition
Part Number	TS-621
Attachment Method	Bolt On
Connector Gender	Male
Connector Shape	Round
Connector Type	Plug In
Terminal Gender	Male
Terminal Type	Blade

This part fits 261 vehicles. Search below:

Year	Make	Model	Liters	Cylinders	Fuel Type	Position	Notes
1993	Chevrolet	C1500			DIESEL	N/A
1993	Chevrolet	C2500			DIESEL	N/A
1993	Chevrolet	C3500			DIESEL	N/A
1993	Chevrolet	G20			DIESEL	N/A
1993	Chevrolet	G30			DIESEL	N/A
1993	Chevrolet	K1500			DIESEL	N/A
1993	Chevrolet	K2500			DIESEL	N/A
1993	Chevrolet	K3500			DIESEL	N/A
1993	Chevrolet	P30			DIESEL	N/A
1993	GMC	C1500			DIESEL	N/A
1993	GMC	C2500			DIESEL	N/A
1993	GMC	C3500			DIESEL	N/A
1993	GMC	G2500			DIESEL	N/A
1993	GMC	G3500			DIESEL	N/A
1993	GMC	K1500			DIESEL	N/A
1993	GMC	K2500			DIESEL	N/A
1993	GMC	K3500			DIESEL	N/A
1993	GMC	P3500			DIESEL	N/A
1992	Chevrolet	C1500			DIESEL	N/A
1992	Chevrolet	C2500			DIESEL	N/A
1992	Chevrolet	C3500			DIESEL	N/A
1992	Chevrolet	G20			DIESEL	N/A
1992	Chevrolet	G30			DIESEL	N/A
1992	Chevrolet	K1500			DIESEL	N/A
1992	Chevrolet	K2500			DIESEL	N/A
1992	Chevrolet	K3500			DIESEL	N/A
1992	Chevrolet	P30			DIESEL	N/A
1992	GMC	C1500			DIESEL	N/A
1992	GMC	C2500			DIESEL	N/A
1992	GMC	C3500			DIESEL	N/A
1992	GMC	G2500			DIESEL	N/A
1992	GMC	G3500			DIESEL	N/A
1992	GMC	K1500			DIESEL	N/A
1992	GMC	K2500			DIESEL	N/A
1992	GMC	K3500			DIESEL	N/A
1992	GMC	P3500			DIESEL	N/A
1991	Chevrolet	Blazer			DIESEL	N/A
1991	Chevrolet	C1500			DIESEL	N/A
1991	Chevrolet	C2500			DIESEL	N/A
1991	Chevrolet	C3500			DIESEL	N/A
1991	Chevrolet	G20			DIESEL	N/A
1991	Chevrolet	G30			DIESEL	N/A
1991	Chevrolet	K1500			DIESEL	N/A
1991	Chevrolet	K2500			DIESEL	N/A
1991	Chevrolet	K3500			DIESEL	N/A
1991	Chevrolet	P30			DIESEL	N/A
1991	Chevrolet	R1500 Suburban	6.2L	V8	DIESEL	N/A
1991	Chevrolet	R2500 Suburban	6.2L	V8	DIESEL	N/A
1991	Chevrolet	R3500			DIESEL	N/A
1991	Chevrolet	V1500 Suburban	6.2L	V8	DIESEL	N/A
1991	Chevrolet	V2500 Suburban	6.2L	V8	DIESEL	N/A
1991	Chevrolet	V3500			DIESEL	N/A
1991	GMC	C1500			DIESEL	N/A
1991	GMC	C2500			DIESEL	N/A
1991	GMC	C3500			DIESEL	N/A
1991	GMC	G2500			DIESEL	N/A
1991	GMC	G3500			DIESEL	N/A
1991	GMC	Jimmy			DIESEL	N/A
1991	GMC	K1500			DIESEL	N/A
1991	GMC	K2500			DIESEL	N/A
1991	GMC	K3500			DIESEL	N/A
1991	GMC	P3500			DIESEL	N/A
1991	GMC	R1500 Suburban			DIESEL	N/A
1991	GMC	R2500 Suburban			DIESEL	N/A
1991	GMC	R3500			DIESEL	N/A
1991	GMC	V1500 Suburban			DIESEL	N/A
1991	GMC	V2500 Suburban			DIESEL	N/A
1991	GMC	V3500			DIESEL	N/A
1990	Chevrolet	Blazer			DIESEL	N/A
1990	Chevrolet	C1500			DIESEL	N/A
1990	Chevrolet	C2500			DIESEL	N/A
1990	Chevrolet	C3500			DIESEL	N/A
1990	Chevrolet	G20			DIESEL	N/A
1990	Chevrolet	G30			DIESEL	N/A
1990	Chevrolet	K1500			DIESEL	N/A
1990	Chevrolet	K2500			DIESEL	N/A
1990	Chevrolet	K3500			DIESEL	N/A
1990	Chevrolet	P30			DIESEL	N/A
1990	Chevrolet	R1500 Suburban	6.2L	V8	DIESEL	N/A
1990	Chevrolet	R2500 Suburban	6.2L	V8	DIESEL	N/A
1990	Chevrolet	R3500			DIESEL	N/A
1990	Chevrolet	V1500 Suburban	6.2L	V8	DIESEL	N/A
1990	Chevrolet	V2500 Suburban	6.2L	V8	DIESEL	N/A
1990	Chevrolet	V3500			DIESEL	N/A
1990	GMC	C1500			DIESEL	N/A
1990	GMC	C2500			DIESEL	N/A
1990	GMC	C3500			DIESEL	N/A
1990	GMC	G2500			DIESEL	N/A
1990	GMC	G3500			DIESEL	N/A
1990	GMC	Jimmy			DIESEL	N/A
1990	GMC	K1500			DIESEL	N/A
1990	GMC	K2500			DIESEL	N/A
1990	GMC	K3500			DIESEL	N/A
1990	GMC	P3500			DIESEL	N/A
1990	GMC	R1500 Suburban			DIESEL	N/A
1990	GMC	R2500 Suburban			DIESEL	N/A
1990	GMC	R3500			DIESEL	N/A
1990	GMC	V1500 Suburban			DIESEL	N/A
1990	GMC	V2500 Suburban			DIESEL	N/A
1990	GMC	V3500			DIESEL	N/A
1989	Chevrolet	Blazer			DIESEL	N/A
1989	Chevrolet	C1500			DIESEL	N/A
1989	Chevrolet	C2500			DIESEL	N/A
1989	Chevrolet	C3500			DIESEL	N/A
1989	Chevrolet	G20			DIESEL	N/A
1989	Chevrolet	G30			DIESEL	N/A
1989	Chevrolet	K1500			DIESEL	N/A
1989	Chevrolet	K2500			DIESEL	N/A
1989	Chevrolet	K3500			DIESEL	N/A
1989	Chevrolet	P20			DIESEL	N/A
1989	Chevrolet	P30			DIESEL	N/A
1989	Chevrolet	R1500 Suburban	6.2L	V8	DIESEL	N/A
1989	Chevrolet	R2500			DIESEL	N/A
1989	Chevrolet	R2500 Suburban	6.2L	V8	DIESEL	N/A
1989	Chevrolet	R3500			DIESEL	N/A
1989	Chevrolet	V1500 Suburban	6.2L	V8	DIESEL	N/A
1989	Chevrolet	V2500 Suburban	6.2L	V8	DIESEL	N/A
1989	Chevrolet	V3500			DIESEL	N/A
1989	GMC	C1500			DIESEL	N/A
1989	GMC	C2500			DIESEL	N/A
1989	GMC	C3500			DIESEL	N/A
1989	GMC	G2500			DIESEL	N/A
1989	GMC	G3500			DIESEL	N/A
1989	GMC	Jimmy			DIESEL	N/A
1989	GMC	K1500			DIESEL	N/A
1989	GMC	K2500			DIESEL	N/A
1989	GMC	K3500			DIESEL	N/A
1989	GMC	P2500			DIESEL	N/A
1989	GMC	P3500			DIESEL	N/A
1989	GMC	R1500 Suburban			DIESEL	N/A
1989	GMC	R2500			DIESEL	N/A
1989	GMC	R2500 Suburban			DIESEL	N/A
1989	GMC	R3500			DIESEL	N/A
1989	GMC	V1500 Suburban			DIESEL	N/A
1989	GMC	V2500 Suburban			DIESEL	N/A
1989	GMC	V3500			DIESEL	N/A
1988	Chevrolet	Blazer			DIESEL	N/A
1988	Chevrolet	C1500			DIESEL	N/A
1988	Chevrolet	C2500			DIESEL	N/A
1988	Chevrolet	C3500			DIESEL	N/A
1988	Chevrolet	G20			DIESEL	N/A
1988	Chevrolet	G30			DIESEL	N/A
1988	Chevrolet	K1500			DIESEL	N/A
1988	Chevrolet	K2500			DIESEL	N/A
1988	Chevrolet	K3500			DIESEL	N/A
1988	Chevrolet	P20			DIESEL	N/A
1988	Chevrolet	P30			DIESEL	N/A
1988	Chevrolet	R10 Suburban	6.2L	V8	DIESEL	N/A
1988	Chevrolet	R20			DIESEL	N/A
1988	Chevrolet	R20 Suburban	6.2L	V8	DIESEL	N/A
1988	Chevrolet	R30			DIESEL	N/A
1988	Chevrolet	V20 Suburban	6.2L	V8	DIESEL	N/A
1988	Chevrolet	V30			DIESEL	N/A
1988	GMC	C1500			DIESEL	N/A
1988	GMC	C2500			DIESEL	N/A
1988	GMC	C3500			DIESEL	N/A
1988	GMC	G2500			DIESEL	N/A
1988	GMC	G3500			DIESEL	N/A
1988	GMC	Jimmy			DIESEL	N/A
1988	GMC	K1500			DIESEL	N/A
1988	GMC	K2500			DIESEL	N/A
1988	GMC	K3500			DIESEL	N/A
1988	GMC	P2500			DIESEL	N/A
1988	GMC	P3500			DIESEL	N/A
1988	GMC	R1500 Suburban			DIESEL	N/A
1988	GMC	R2500			DIESEL	N/A
1988	GMC	R2500 Suburban			DIESEL	N/A
1988	GMC	R3500			DIESEL	N/A
1988	GMC	V1500 Suburban			DIESEL	N/A
1988	GMC	V2500 Suburban			DIESEL	N/A
1988	GMC	V3500			DIESEL	N/A
1987	Chevrolet	Blazer			DIESEL	N/A
1987	Chevrolet	G20			DIESEL	N/A
1987	Chevrolet	G30			DIESEL	N/A
1987	Chevrolet	P20			DIESEL	N/A
1987	Chevrolet	P30			DIESEL	N/A
1987	Chevrolet	R10			DIESEL	N/A
1987	Chevrolet	R10 Suburban	6.2L	V8	DIESEL	N/A
1987	Chevrolet	R20			DIESEL	N/A
1987	Chevrolet	R20 Suburban	6.2L	V8	DIESEL	N/A
1987	Chevrolet	R30			DIESEL	N/A
1987	Chevrolet	V10			DIESEL	N/A
1987	Chevrolet	V10 Suburban	6.2L	V8	DIESEL	N/A
1987	Chevrolet	V20			DIESEL	N/A
1987	Chevrolet	V20 Suburban	6.2L	V8	DIESEL	N/A
1987	Chevrolet	V30			DIESEL	N/A
1987	GMC	G2500			DIESEL	N/A
1987	GMC	G3500			DIESEL	N/A
1987	GMC	Jimmy			DIESEL	N/A
1987	GMC	P2500			DIESEL	N/A
1987	GMC	P3500			DIESEL	N/A
1987	GMC	R1500			DIESEL	N/A
1987	GMC	R1500 Suburban			DIESEL	N/A
1987	GMC	R2500			DIESEL	N/A
1987	GMC	R2500 Suburban			DIESEL	N/A
1987	GMC	R3500			DIESEL	N/A
1987	GMC	V1500			DIESEL	N/A
1987	GMC	V1500 Suburban			DIESEL	N/A
1987	GMC	V2500			DIESEL	N/A
1987	GMC	V2500 Suburban			DIESEL	N/A
1987	GMC	V3500			DIESEL	N/A
1986	Chevrolet	C10			DIESEL	N/A
1986	Chevrolet	C10 Suburban	6.2L	V8	DIESEL	N/A
1986	Chevrolet	C20			DIESEL	N/A
1986	Chevrolet	C20 Suburban	6.2L	V8	DIESEL	N/A
1986	Chevrolet	C30			DIESEL	N/A
1986	Chevrolet	G20			DIESEL	N/A
1986	Chevrolet	G30			DIESEL	N/A
1986	Chevrolet	K10			DIESEL	N/A
1986	Chevrolet	K10 Suburban	6.2L	V8	DIESEL	N/A
1986	Chevrolet	K20			DIESEL	N/A
1986	Chevrolet	K20 Suburban			DIESEL	N/A
1986	Chevrolet	K30			DIESEL	N/A
1986	Chevrolet	K5 Blazer	6.2L	V8	DIESEL	N/A
1986	Chevrolet	P20			DIESEL	N/A
1986	Chevrolet	P30			DIESEL	N/A
1986	GMC	C1500			DIESEL	N/A
1986	GMC	C1500 Suburban			DIESEL	N/A
1986	GMC	C2500			DIESEL	N/A
1986	GMC	C2500 Suburban			DIESEL	N/A
1986	GMC	C3500			DIESEL	N/A
1986	GMC	G2500			DIESEL	N/A
1986	GMC	G3500			DIESEL	N/A
1986	GMC	Jimmy			DIESEL	N/A
1986	GMC	K1500			DIESEL	N/A
1986	GMC	K1500 Suburban			DIESEL	N/A
1986	GMC	K2500			DIESEL	N/A
1986	GMC	K2500 Suburban			DIESEL	N/A
1986	GMC	K3500			DIESEL	N/A
1986	GMC	P2500			DIESEL	N/A
1986	GMC	P3500			DIESEL	N/A
1985	Chevrolet	C10			DIESEL	N/A
1985	Chevrolet	C10 Suburban	6.2L	V8	DIESEL	N/A
1985	Chevrolet	C20			DIESEL	N/A
1985	Chevrolet	C20 Suburban	6.2L	V8	DIESEL	N/A
1985	Chevrolet	C30			DIESEL	N/A
1985	Chevrolet	G20			DIESEL	N/A	Control
1985	Chevrolet	G30			DIESEL	N/A
1985	Chevrolet	K10			DIESEL	N/A
1985	Chevrolet	K10 Suburban	6.2L	V8	DIESEL	N/A
1985	Chevrolet	K20			DIESEL	N/A
1985	Chevrolet	K20 Suburban	6.2L	V8	DIESEL	N/A
1985	Chevrolet	K30			DIESEL	N/A
1985	Chevrolet	K5 Blazer	6.2L	V8	DIESEL	N/A
1985	Chevrolet	P20			DIESEL	N/A
1985	Chevrolet	P30			DIESEL	N/A
1985	GMC	C1500			DIESEL	N/A
1985	GMC	C1500 Suburban			DIESEL	N/A
1985	GMC	C2500			DIESEL	N/A
1985	GMC	C2500 Suburban			DIESEL	N/A
1985	GMC	C3500			DIESEL	N/A
1985	GMC	G2500			DIESEL	N/A
1985	GMC	G3500			DIESEL	N/A
1985	GMC	Jimmy			DIESEL	N/A
1985	GMC	K1500			DIESEL	N/A
1985	GMC	K1500 Suburban			DIESEL	N/A
1985	GMC	K2500			DIESEL	N/A
1985	GMC	K2500 Suburban			DIESEL	N/A
1985	GMC	K3500			DIESEL	N/A
1985	GMC	P2500			DIESEL	N/A
1985	GMC	P3500			DIESEL	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:

101546495S13650IGNA50TS7265WT7266WTC1305

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