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 Did you know?

Cooling systems have an effect on everything from power to gas mileage and everything in between.

When was the last time that you changed an oil filter? Added coolant or brake fluid? How about replaced your radiator cap?

Radiator caps are the most overlooked component of your cooling system and ironically the least expensive. Replacing your radiator cap regularly can save your customer money at the pump and save wear and tear on your cooling system overall. Caps have a seal that can wear away over time. And over time your fuel costs will also increase.

*Measurements are reference only and may vary slightly with application.

*Matching EXISTING PSI is critical in selecting your radiator cap.

SCROLL TO THE RIGHT FOR MORE INFO AND LINKS

FILLER NECK WIDTH (outer dimension)FILLER NECK DEPTHPSI (lbs)FOR COOLANT RESERVOIR SYSTEMSOVERALL HEIGHTOVERALL DIAMETERNOTESPART #
32mm (inner dimension)10mm13YES0.68"1.71"Upper sealRW0021-65
32mm (inner dimension)10mm16YES0.68"1.71"Upper sealRW0021-66
32mm (inner dimension)16 mm13YES.96”1.77”Upper sealRW0021-6
32mm (inner dimension)16 mm16YES.96”1.77”Upper sealRW0021-23
32mm (inner dimension)16 mm26YES0.96"1.77"Upper sealZ19210
2.2".75”4NO1”2.3” NO upper sealRW0021-11
2.2".75”7NO1”2.3"NO upper sealRW0021-81
2.2".75”7YES1.20"2.3"Upper sealZ17705
2.2".75”7YES1”2.3”Upper sealRW0021-1
2.2".75”10NO0.96"2.3"NO upper seal RW0021-73
2.2".75”10YES0.96"2.3"Upper sealRW0021-70
2.2".75”10YES0.96"2.3"Upper sealRW0021-72
2.2".75”10YES1”2.3”Upper sealRW0021-5
2.2".75”10YES2.3”3.5”Massey Freguson SpecialRW0021-24
2.2".75”13YES1.20"2.3"Upper sealZ17704
2.2".75”13YES1.4”2.3”Lever Lift with upper sealRW0021-3
2.2".75”13YES1”2.3"Upper sealRW0021-80
2.2".75”13YES1”2.3”Upper sealRW0021-2
2.2".75”16YES1.20"2.3"Upper sealZ17700
2.2".75”16YES1”2.3”Vented  Drop Valve with upper sealRW0021-12
2.2".75”16YES1”2.3”Upper sealRW0021-22
2.2".75”20YES0.96"2.3"Upper sealRW0021-74
2.2".75”20YES1.14"2.3"Upper sealZ19200
2.2".75”24YES1.14"2.3"Upper sealZ19201
2.2".75”28YES1.14"2.3"Upper sealZ19202
2.2"1"4NO1.2”2.3”NO upper seal RW0021-15
2.2"1"7NO1.2”2.3”NO upper seal RW0021-14
2.2"1"10NO1.4”2.3”NO upper seal RW0021-25
2.7”.75”4NO.96”2.8”NO upper seal RW0021-9
2.7”.75”7NO.96”2.8”NO upper seal RW0021-4
2.7”.75”7YES.96”2.8”Upper sealRW0021-292B
2.7”.75”10NO.96”2.8”NO upper seal RW0021-40
2.7”.75”15NO1"2.8"NO upper seal RW0021-77
2.7”.75”15YES.96”2.8”Upper sealRW0021-294B
2.7”.75”15YES1.12"2.8"Upper sealZ17703
Click product link for more information 10 1.08"3.11"Plastic cap threaded RW0021-79
Click product link for more information 15 1.08"3.11"Plastic cap threaded RW0021-78
Click product link for more information 15 1.48"2.54"Plastic cap threaded RW0021-75
Click product link for more information N/A 12.36"Surge tank capRW0021-76

Want more information?

Contact your local Northern Radiator Sales Rep