Motorad 7233-160 Engine Coolant Thermostat

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Fail-Safe

Motorad 7233-160 Engine Coolant Thermostat

Brand	Motorad 7233-160
Sealing Flange Outside Diameter	2.12
Gasket Or Seal Included	No
Jiggle Pin Weep Hole	No
Bypass Diameter	1.14 in
Bypass Length	1.23 in
Flange Thickness	0.068 in
Installation Tool Included	No
Temperature	160 deg. f
Temperature (Degree)	160
Product line	Fail-Safe
Fits	Dodge, Jaguar, Maserati, Mazda, Nissan, and Saab · 84 vehicles

OE supplier quality. Built with OEM materials and processes for dependable cooling performance.

Copper case. Wax compound responds quickly to coolant temperature changes.

160°F thermostat. Provides precise temperature control for the cooling system.

Cross-references Dayco 72336, Motorad 7233-160 and NI for the same application. See all 4.

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Motorad Fail-Safe Thermostat 7233-160

The Motorad Fail-Safe 7233-160 engine coolant thermostat is built for precise temperature control in demanding cooling systems. It opens at 160 degrees F and uses a copper case with wax compound for quick response to coolant temperature changes.

Compatible with select Jaguar XJ12, Jaguar XJS, Jaguar XJ6, Jaguar XJ, Jaguar XJRS, Saab 900, Dodge D250, Dodge D350, Dodge W250, Dodge W350, Maserati 425, Maserati Quattroporte, Maserati Biturbo, Mazda RX-7, Nissan Maxima, and Nissan 720 applications, this thermostat is an OE-spec replacement for vehicles that require a 160F opening temperature. Part number 7233-160 is also referenced for the same application under Dayco 72336.

Key Features

160 degree F opening temperature for controlled coolant flow
Copper case construction for stable thermal response
Wax compound element reacts quickly to coolant temperature changes
Manufactured to OEM specifications and processes
Built with OEM-quality materials and safety standards by an OE supplier
Sealing flange outside diameter: 2.12 in
Bypass diameter: 1.14 in
Bypass length: 1.23 in
Flange thickness: 0.068 in

Product Details

Motorad Fail-Safe thermostats are engineered for vehicles that need dependable coolant regulation under load and in high-heat conditions. The 7233-160 is a 160F engine coolant thermostat designed to open at the specified temperature and maintain consistent circulation through the cooling system. Its copper case and wax compound construction support fast reaction to temperature changes, helping the engine reach and hold the intended operating range.

This part number 7233-160 is used across a wide range of import and domestic applications, including Jaguar XJ12 and XJS models, as well as Saab 900, Mazda RX-7, and several Dodge heavy-duty truck platforms. For buyers searching for a 160 degree thermostat for Jaguar XJ6, Jaguar XJRS, or Maserati Quattroporte cooling system service, this OE-style thermostat matches the listed application requirements.

What It Helps Address

Engine running hotter than normal due to a thermostat that no longer opens at the correct temperature
Slow coolant circulation during warm-up or temperature swings
Cooling system service on vehicles requiring a 160F thermostat
Replacement of a worn thermostat in Jaguar, Maserati, Mazda, Nissan, Saab, or Dodge applications
Restoring stable operating temperature after thermostat-related overheating symptoms

Installation Notes

Verify the required opening temperature and dimensions before installation. This thermostat does not include a gasket or seal, and no installation tool is included. Inspect the housing, sealing surfaces, and bypass dimensions during service to confirm proper fitment. Use fresh coolant and follow the vehicle manufacturer’s bleeding and refill procedure after installation.

Fitment examples include 1994-1996 Jaguar XJ12, 1976-1992 Jaguar XJS, 1994 Saab 900, 1989-1993 Dodge D250, 1984-1986 Mazda RX-7, and 1982 Nissan Maxima. Additional coverage includes 1971-1977 Jaguar XJ, 1972-1977 Jaguar XJ6, 1984-1986 Maserati Quattroporte, and 1981 Nissan 720.

Quality Assurance

Motorad manufactures this thermostat to OEM specifications using OEM-quality materials and processes. The Fail-Safe design is intended to lock open in an overheating event so coolant flow can continue, supporting protection in demanding automotive cooling systems.

This part fits 84 vehicles

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

Year	Make	Model	Liters	Cylinders	Position	Notes
1996	Jaguar	XJ12	6.0L	V12	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1995	Jaguar	XJ12	6.0L	V12	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1995	Jaguar	XJS	6.0L	V12	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1994	Jaguar	XJ12	6.0L	V12	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1994	Jaguar	XJS	6.0L	V12	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1994	Saab	900	2.1L	L4	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1993	Dodge	D250	5.9L	L6	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1993	Dodge	D350	5.9L	L6	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1993	Dodge	W250	5.9L	L6	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1993	Dodge	W350	5.9L	L6	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1993	Jaguar	XJRS	6.0L	V12	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1992	Dodge	D250	5.9L	L6	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1992	Dodge	D350	5.9L	L6	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1992	Dodge	W250	5.9L	L6	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1992	Dodge	W350	5.9L	L6	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1992	Jaguar	XJ12	5.3L	V12	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1992	Jaguar	XJS	5.3L	V12	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1991	Dodge	D250	5.9L	L6	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1991	Dodge	D350	5.9L	L6	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1991	Dodge	W250	5.9L	L6	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1991	Dodge	W350	5.9L	L6	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1991	Jaguar	XJ12	5.3L	V12	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1991	Jaguar	XJS	5.3L	V12	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1990	Dodge	D250	5.9L	L6	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1990	Dodge	D350	5.9L	L6	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1990	Dodge	W250	5.9L	L6	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1990	Dodge	W350	5.9L	L6	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1990	Jaguar	XJ12	5.3L	V12	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1990	Jaguar	XJS	5.3L	V12	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1989	Dodge	D250	5.9L	L6	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1989	Dodge	D350	5.9L	L6	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1989	Dodge	W250	5.9L	L6	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1989	Dodge	W350	5.9L	L6	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1989	Jaguar	XJ12	5.3L	V12	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1989	Jaguar	XJS	5.3L	V12	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1988	Jaguar	XJ12	5.3L	V12	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1988	Jaguar	XJS	5.3L	V12	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1987	Jaguar	XJ12	5.3L	V12	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1987	Jaguar	XJS	5.3L	V12	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1986	Jaguar	XJ12	5.3L	V12	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1986	Jaguar	XJS	5.3L	V12	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1986	Maserati	425	2.5L	V6	N/A	Fail-Safe (R) thermostat designed to lock open in event of overheating, allowing coolant flow; Temperature 160F; OE Specified Temperature; Fail-Safe
1986	Maserati	Quattroporte	4.9L	V8	N/A	Fail-Safe (R) thermostat designed to lock open in event of overheating, allowing coolant flow; Temperature 160F; OE Specified Temperature; Fail-Safe
1986	Mazda	RX-7	1.3L	R2	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1985	Jaguar	XJ12	5.3L	V12	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1985	Jaguar	XJS	5.3L	V12	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1985	Maserati	Quattroporte	4.9L	V8	N/A	Fail-Safe (R) thermostat designed to lock open in event of overheating, allowing coolant flow; Temperature 160F; OE Specified Temperature; Fail-Safe
1985	Mazda	RX-7	1.3L	R2	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1984	Jaguar	XJ12	5.3L	V12	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1984	Jaguar	XJS	5.3L	V12	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1984	Maserati	Biturbo	2.5L	V6	N/A	Fail-Safe (R) thermostat designed to lock open in event of overheating, allowing coolant flow; Temperature 160F; OE Specified Temperature; Fail-Safe
1984	Maserati	Quattroporte	4.9L	V8	N/A	Fail-Safe (R) thermostat designed to lock open in event of overheating, allowing coolant flow; Temperature 160F; OE Specified Temperature; Fail-Safe
1984	Mazda	RX-7	1.3L	R2	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1983	Jaguar	XJ12	5.3L	V12	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1983	Jaguar	XJS	5.3L	V12	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1982	Jaguar	XJ12	5.3L	V12	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1982	Jaguar	XJ6	4.2L	L6	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1982	Jaguar	XJS	5.3L	V12	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1982	Nissan	Maxima	2.8L	L6	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1981	Jaguar	XJ12	5.3L	V12	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1981	Jaguar	XJ6	4.2L	L6	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1981	Jaguar	XJS	5.3L	V12	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1981	Nissan	720	2.2L	L4	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1980	Jaguar	XJ6	4.2L	L6	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1980	Jaguar	XJS	5.3L	V12	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1979	Jaguar	XJ12	5.3L	V12	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1979	Jaguar	XJ6	4.2L	L6	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1979	Jaguar	XJS	5.3L	V12	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1978	Jaguar	XJ12	5.3L	V12	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1978	Jaguar	XJS	5.3L	V12	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1977	Jaguar	XJ12	5.3L	V12	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1977	Jaguar	XJ6	4.2L	L6	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1977	Jaguar	XJS	5.3L	V12	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1976	Jaguar	XJ12	5.3L	V12	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1976	Jaguar	XJ6	4.2L	L6	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1976	Jaguar	XJS	5.3L	V12	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1975	Jaguar	XJ12	5.3L	V12	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1975	Jaguar	XJ6	4.2L	L6	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1974	Jaguar	XJ12	5.3L	V12	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1974	Jaguar	XJ6	4.2L	L6	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1973	Jaguar	XJ12	5.3L	V12	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1973	Jaguar	XJ6	4.2L	L6	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1972	Jaguar	XJ6	4.2L	L6	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
1971	Jaguar	XJ	4.2L	L6	N/A	Thermostat with fail-safe overheating feature opens at 160F.; Fail-Safe
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Directly replaces or cross-references 4 part numbers

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

Dayco — 72336Motorad — 7233-160NISS160-3327