Maxim-X Thermostat Replacement

Sourcing Replacement Thermostat

[Addendum - June 9, 2007: It has now been verified that the thermostat gaskets identified in the earlier addendum of April 7, 2006 do indeed replace the stock thermostat gasket for the Maxim-X. As previously noted, the replacement gasket is slightly larger but that doesn't prevent its installation. At least one such gasket is currently in use on a Maxim-X in Quebec (thanks François) with no apparent problems.]

[Addendum - April 12, 2006: CAUTION is advised when using the compatible vehicle reference chart to source a replacement thermostat for the Maxim-X. During a visit to NAPA Auto Parts I used the reference to find something from NAPA to match the Motorad 2040-180 thermostat or the original Yamaha part. Although the reference indicates only vehicles which use the very same high flow thermostat, multiple searches led to the NAPA 201-33489 thermostat which, while it does physically fit, is NOT a high flow thermostat. The NAPA equivalent has a flow aperature which will result in 32% less coolant flow. When shopping for an appropriate replacement thermostat using the compatible vehicle reference below, it would be wise to bring a vernier caliper to verify that the flow aperture diameter is very near 1.22" (31mm) like the original Yamaha part.]

[Addendum - April 7, 2006: I was previously unable to source a replacement gasket for the Maxim-X thermostat without buying the entire thermostat assembly from Yamaha for upwards of CAD$40. Recently however, I was able to find what appears to be a viable replacement gasket at Part Source. Although the gasket has a slightly larger diameter, a ROL W08361-001 "Water Outlet Gasket" from Part Source will apparently work (although I haven't officially verified it yet). Some other part numbers that will identify the same gasket from other suppliers are CTC 17-4279-6, FP-35001 and VICT C24117TC.]

[Addendum - March 30, 2006: I wanted to keep an extra thermostat on stock so I returned to Canadian Tire to buy another Motorad 2040-180 but found that they were no longer on the shelf. When I inquired with the parts department, they told me that the last Motorad 2040-180 thermostat they had sold was almost a year earlier, back in May of 2005, which happened to be when I bought the one that led to this write up. I was told that they no longer stocked it but that it was still a listed part and could be easily ordered in. With some further inquiries I found that the same Motorad 2040-180 thermostat is available at Part Source because Motorad is apparently their brand name.]

The quest to find a suitable replacement for the original Maxim-X thermostat eventually led to a Canadian Tire store which carried the appropriate Motorad replacement. That replacement may be suitable and easily sourced now and in Canada, but the information does nothing to help other Maxim-X owners around the world and, for that matter, Canadian Tire may eventually stop carrying the Motorad line. For those reasons and more, I thought it appropriate to provide a list of vehicles which, according to the Canadian Tire cross reference table, share the same thermostat. In theory, if you can't find or don't have access to the Motorad 2040-180 (CTC Part# 14-4380-8), then you should be able to use the cross reference provided here as a guide to source a similar thermostat through your local automotive parts supplier. If all else fails, the details provided in the Dimensions section should help you converge on a suitable alternative thermostat.

Each of the following vehicles are listed as using the Motorad 2040-180 (CTC Part# 14-4380-8) thermostat: [ »»» Installation ]

Chrysler, Dodge & Plymouth Passenger Cars
4 Cylinder		6 Cylinder		8 Cylinder
1.5 L	1979-92	•	•	•	•
1.6 L	1978-90 except Charger	•	•	•	•
1.8 L	1989-92 ¹Code B,D,T	•	•	•	•
2.0 L	1986	•	•	•	•
2.0 L	1987-94 except 1993 Laser	•	•	•	•
2.4 L	1992 Code ¹W	•	•	•	•
2.6 L	1981-85	•	•	•	•
•	•	3.0 L	1989-95	•	•

Eagle Passenger Cars
4 Cylinder		6 Cylinder		8 Cylinder
1.5 L	1988-92	•	•	•	•
1.6 L	1989-90	•	•	•	•
1.8 L	1992	•	•	•	•
2.0 L	1989-90 except Talon	•	•	•	•
2.0 L	1991-92 except DOHC models	•	•	•	•
2.0 L	1993-94 DOHC models	•	•	•	•
2.4 L	1992	•	•	•	•

Ford, Lincoln & Mercury Passenger Cars
4 Cylinder		6 Cylinder		8 Cylinder
1.3 L	1989-96	•	•	•	•

Honda Passenger Cars
4 Cylinder		6 Cylinder		8 Cylinder
ALL	1975-89 Accord
ALL	1977-83 Civic
ALL	1979-91 Prelude

Hyundai Passenger Cars
4 Cylinder		6 Cylinder		8 Cylinder
1.6 L	1992-95 Elantra	•	•	•	•
1.8 L	1993-95	•	•	•	•
ALL	1986-94 Excel
ALL	1984-87 Pony
ALL	1991-93 Scoupe
ALL	1989-98 Sonata
ALL	1985-87 Stellar

Mazda Passenger Cars
4 Cylinder		6 Cylinder		8 Cylinder
ALL	1981-85 GLC, 323 & Protegé
ALL	1981-85 626

Toyota Passenger Cars
4 Cylinder		6 Cylinder		8 Cylinder
ALL	1982-85 Celica
ALL	1978-92 Cressida
ALL	1981-83 Starlet
ALL	1979-92 Supra

Chevrolet & GMC Trucks
4 Cylinder		6 Cylinder		8 Cylinder
1.6 L	1989-98 Sunrunner & Tracker

Chrysler, Dodge & Plymouth Trucks
4 Cylinder		6 Cylinder		8 Cylinder
2.0 L	1979-88	•	•	•	•
2.4 L	1990-93	•	•	•	•
2.6 L	1983-89	•	•	•	•

Ford Trucks
4 Cylinder		6 Cylinder		8 Cylinder
2.0 L	1979-82 Ranger	•	•	•	•
2.9 L	1986-90 Bronco II & Explorer	•	•	•	•
•	•	2.9 L	1986-90 Ranger	•	•

Mazda Pickups
4 Cylinder		6 Cylinder		8 Cylinder
2.0 L	1981-87	•	•	•	•

Suzuki Trucks
4 Cylinder		6 Cylinder		8 Cylinder
ALL	1986-98 Samurai & Sidekick

Toyota Trucks
4 Cylinder		6 Cylinder		8 Cylinder
2.2 L	1977-80 Pickups & 4Runner	•	•	•	•
2.4 L	1981-96 except Tacoma, Diesel & Turbo	•	•	•	•
2.4 L	1986-87 Turbo	•	•	•	•

Footnote Key
¹	Prior to 1981 the Code was the 5th character of the V.I.N. 1981-Present the Code was the 8th character of the V.I.N.

Disclaimer
I've tried to be as accurate as possible when compiling this list but there's always room for error. I've basically listed all the vehicles which were shown to use the Motorad 2040-180 (CTC Part# 14-4380-8) in the Canadian Tire cross reference table which itself might not be completely accurate. Although I was very careful to note things correctly, I too might have introduced an error or two. The odds are in favour of accuracy but just to be certain that you're sourcing the correct replacement thermostat, it would be wise to go armed with the Dimensions which I, myself, measured and recorded very accurately. [ »»» Installation ]