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The Following brands are available based on your search.

  • CSF Radiator
    CSF Radiator
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    Gates
  • Stant
    Stant

Best Selling Genuine Geo Radiator Caps

  • We Stock the following top leading brands, including CSF Radiator, Stant
  • Constantly Updated Inventory of Geo Replacement Radiator Cap Parts

We stock Radiator Cap parts for most Geo models, including Metro, Prizm, Storm, Tracker.

CSF Radiator
1997 Geo Prizm Radiator Cap 4 Cyl 1.6L CSF Radiator

P311-3B9C632    4513  New

10241

Qty:
$4.89
  • Radiator Cap
  • Micro, 13 psi
Brand: CSF Radiator
Additional Fitment Information:
Vehicle Transmission Block Engine CID CC
1997 - Geo Prizm Automatic L 4 Cyl 1.6L 98 1588
Stant
1997 Geo Tracker Radiator Cap 4 Cyl 1.6L Stant - OE Type Radiator Cap

P311-094B732    10242  New

17920-56B20 , 91172260 , 16401-02421 , 16401-31650 , 96068657 , 1640128430 , 16405-0C050 , LFB715205 , 16401-5B630 , 19045-PWA-004 , 16401-6A140 , ST-37 , 19045-PO8-013 , 16401-31480 , 8-97182-068-0 , 5-86202-367-0 , 1640175440 , 16401-50370 , 5-86206-023-0 , 19045-PY3-013 , 703-1727 , 16401-31520 , WL21-15-205 , 19045-PO8-003 , 16401-28280 , SU00301184 , 19045-PO8-004 , 16401-50371 , 17920-75F00 , 16401-31791 , 30020692 , 10242 , 19045P08003 , 1003-16 , 19045P08014 , 16401-7A470 , 19045-RAA-003 , 19045-PAA-A01 , 16401-05140 , 16405-0C020 , 16401-62100 , 19045P08013 , 7037 , 17920-66F00 , RR-42 , MR597126 , 33049 , 16401-31680 , 45137AE01A , 1640136650 , 17920-66F01 , 19045-P72-005 , 31412 , 8-97182-068-1 , 19045-PY3-003 , 19045P08004 , 19045-PO8-014

Qty:
$4.89
Stant Radiator Cap
  • Pressure Rating 16 psi This part is also available in the Engine Coolant Thermostat Kit 111KT, which contains 14078 (Engine Coolant Thermostat), 25286 (Engine Coolant Thermostat Seal) and 74138 (Engine Coolant Temperature Sensor)
  • OE Type Radiator Cap
  • 16 PSI micro radiator cap. Fits 32 mm ID, 10 mm deep. Made of durable material. Made to bring coolant back from the overflow.
Brand: Stant
Additional Fitment Information:
Vehicle Block Engine CID CC
1997 - Geo Tracker L 4 Cyl 1.6L 98 1588
Stant
1997 Geo Prizm Radiator Cap 4 Cyl 1.6L Stant - OE Type Radiator Cap

P311-53A52D7    10241  New

16401-72090 , 16401-20353 , 19204980 , 45137XA01B , ST-36 , T-36 , 94853743 , 7036 , RC 66 , 16401-46610 , MB660667 , 1640120310 , RR-41 , 94853503 , MR481216 , 31411 , B3C7-15-205 , 45137XA00A , 16401-15520 , 33048 , 703-1728 , 16401-16020 , 16401-21250 , 45137XA01A , 17920-76G00

Qty:
$4.93
Stant Radiator Cap
  • Pressure Rating 13 psi This part is also available in the Engine Coolant Thermostat Kit 110KT, which contains 48778 (Engine Coolant Thermostat / Water Outlet Assembly) and 74138 (Engine Coolant Temperature Sensor)
  • OE Type Radiator Cap
  • 13 PSI micro radiator cap. Fits 32 mm ID, 10 mm deep. Made of durable material. Made to bring coolant back from the overflow.
Brand: Stant
Additional Fitment Information:
Vehicle Block Engine CID CC
1997 - Geo Prizm L 4 Cyl 1.6L 98 1588
Stant
1993 Geo Tracker Radiator Cap 4 Cyl 1.6L Stant - Safety Release Radiator Cap

P311-1140D9A    10327  New

10327 , 33064 , 31533 , 703-1393 , 7913 , ST-13R

Qty:
$7.29
Stant Radiator Cap
  • Pressure Rating 13 psi Check hood clearance prior to installing this cap
  • Safety Release Radiator Cap
  • 13 PSI Lev-R-Vent mini radiator cap. For open or closed system. 16 mm deep neck. Will bring back coolant from the overflow tank.
Brand: Stant
Additional Fitment Information:
Vehicle Block Engine CID CC
1993 - Geo Tracker L 4 Cyl 1.6L 98 1588
Stant
1993 Geo Tracker Radiator Cap 4 Cyl 1.6L Stant - OE Type Radiator/Coolant Recovery Tank Cap

P311-4790404    10227  New

F4BZ 8100 A , FS11-15-205 , 21430-0B200 , 0K20215205A , 21430-50A01 , FEG8-15-205 , 19045-PR3-005 , E8GY 8100 A , 3533036000 , RS-79 , 16470-76021 , 25330-36000 , 21430-7994A , 2533024100 , 21430-4B000 , ZZM2-15-205 , 82933 , 16401-16010 , 745153011 , 533017000 , RA-13 , 16401-54750 , 253405H000 , E8GY 8100 B , RS-519 , 17920-61A00 , 133-0145 , 133-0144 , F807-15-205 , MR481217 , MB605277 , 7513 , RC 67 , 31333 , AW338245 , 2533011415 , 533033001 , 16401-63010 , 17920-61AA0 , 46029 , N350-15-205 , KL78-15-205 , MR481218 , MB222066 , 96067641 , ER-29 , 96062603 , 253301G000 , 0K2C615205 , RS-102 , 2533001G00 , YM1Z-8100-AB , 17920-83100 , 16401-50071 , L95-4060 , E92Z 8100 B , F57Z 8100 A , 16480-76011 , 45113GA021 , 253301G010 , YF5Z 8100 AA , 16470-76020 , 16401-76020 , 82927 , E9ZZ 8100 B , 25330-33010 , 94847233 , 94842508 , E8BZ 8100 B , F6XZ 8100 AA , 52467188 , 21430-01F01 , 16401-0C010 , 16401-71010 , 25330-33101 , F1CZ 8100 A , L95-4080 , 21430-17C00 , 17920-78120 , 745113051 , RS-63 , K817-15-205 , 703-1695 , L95-4063 , MB660055 , 17920-82000 , 21430-7995B , 16401-74170 , 96061601 , MB222336 , 21430-2Z000 , F8B7-15-205 , OK30A-15-205 , 45113GA020 , N321-15-205 , 96051840 , 16401-50021 , ER-25 , 16401-63010-73 , MB356417 , 21430-F4305 , 644107 , 21430-4B700 , 0K30A15205 , 19045-PM3-003 , 17920-83101 , 533033101 , 46033 , 33028 , F6XH 8100 AA , 16401-50020 , F32Z 8100 A , RS-86 , 25330-14200 , MR48 1217 , 745113050 , YF5H 8100 AA , KL11-15-205A , 25330-G010 , 107 , 1640187712000 , 21430-6K000 , T-13R , 745113052 , F3XY 8100 A , 96051843 , RR-27 , 25330-25000 , RS-67 , 8941169162 , MB845036 , KL11-15-205 , 16401-15210 , 94854943 , 45113GA022 , E7GZ 8100 A , 19045-PM3-004 , 1770083100 , 533033000 , RS-72 , N3H115205 , 53-10728 , 8941532510 , E92H 8100 AB , 10227 , 21430-1B000 , MB890520 , KF01-15-205 , 21430-01F00 , N3A1-15-205A , OK202-15-205 , 19045-PR3-004 , YM1Z-8100-AA , 21430-7996E , 0K20215205 , MB660171 , 25330-33000 , MB660701 , 17920-60B20 , 21430-7995A , 21430-F430A , RS-84 , AW332158 , 25330-33100 , 2533033001 , 19045-PR3-003 , E92H 8100 AC , 17920-60B21 , 89438444230 , 21430-4B701 , 96060164 , 45113GA121 , 25330-21000 , B303-15-205A , 16401-50051 , RS-88 , MB660735 , 16401-76021 , 25330-33001 , 45113GA120 , F3XY8100B , 19045-PR7-A06 , OK2C6-15-205 , 16401-01010 , 21430-79901 , 16401-50070 , 45153AC030 , 533014201 , 16401-08010 , 16401-50050 , 21430-50A00 , D316-15-205 , RS-87 , 21430-01F02 , 2533017000 , E8BZ 8100 A

Qty:
$6.07
Stant Radiator Cap
  • Pressure Rating 13 psi This part is also available in the Engine Coolant Thermostat Kit 114KT, which contains 14678 (Engine Coolant Thermostat), 15112 (Engine Coolant Thermostat) and 74000 (Engine Coolant Temperature Sensor)
  • OE Type Radiator/Coolant Recovery Tank Cap
  • 13 PSI mini radiator cap. Fits 32 mm ID, 16 mm deep neck. Made of quality material. Will bring coolant back from the overflow tank.
Brand: Stant
Additional Fitment Information:
Vehicle Block Engine CID CC
1993 - Geo Tracker L 4 Cyl 1.6L 98 1588
Stant
1993 Geo Storm Radiator Cap 4 Cyl 1.6L Stant - Safety Release Radiator Cap

P311-04B1B08    10333  New

33065 , ST-16R , 31534 , 7916 , 703-1394

Qty:
$6.98
Stant Radiator Cap
  • Pressure Rating 16 psi Check hood clearance prior to installing this cap
  • Safety Release Radiator Cap
  • 13 PSI Lev-R-Vent radiator cap in "A" size. For open or closed system. Will bring back coolant from the overflow tank.
Brand: Stant
Additional Fitment Information:
Vehicle Block Engine CID CC
1993 - Geo Storm L 4 Cyl 1.6L 98 1588
Stant
1993 Geo Storm Radiator Cap 4 Cyl 1.6L Stant - OE Type Radiator/Coolant Recovery Tank Cap

P311-43D0CED    10233  New

MO4495805 , 45137AE001 , 31336 , 33044 , MR968532 , OK2C6-15-205A , KL15-15-205A , 19045-PAA-A51 , 25330-3K000 , 8-97171-436-0 , MR481252 , 8-52477-552-0 , 12R8 , 7516 , E9SH 8100 AA , 97249639 , YF47-15-205 , 19045-PR7-J24 , RR-33 , 19045-PV3-005 , 21430-1P111 , 97104194 , 253303K000 , 8-97239-187-0 , 25330-3E-000 , 1K2N1-15-205 , 8-94408-139-1 , 25330B1000 , N3A1-15-205 , 8-52468-173-0 , 45137AE00B , A501-15-205 , 97129572 , 1350A730 , 16331-20060 , 52477552 , 16401-62090 , 21430-1P110 , 53301P000 , 45137AE00A , RC 72 , 25330-38001 , 82933 , 97027623 , 94132697 , 25330-2E000 , 19045-PT0-003 , 25330C2000 , 97182935 , 97182673 , 94116916 , 8-94153-251-1 , 1773062H00 , 21430-1P120 , 10233 , 94418071 , 703-1712 , 21430-0M900 , 533038001 , 97042334 , 16331-20020 , 25330-1P000 , F42Z 8100 A , 97120073 , 253302E100 , 53303K000 , 8971643730 , 8-94408-139-0 , 21430-30P00 , 253304R000 , 8-94384-423-1 , 97167861 , 97148007 , 253300W000 , 8-94116-916-1 , 8-94116-916-0 , 19045-PV1-015 , 1640150210 , 21430-54P00 , 19045-RAA-A51 , 25330-39100 , 97164373 , 45137AE002 , KL01-15-205 , 97171436 , 25330-38000 , 97177848 , 2533020 , 19045-PR7-A08 , 253301H000 , 0K2C615205A , 97167854 , F87H 8100 AA , 16304-0A010 , RS-89 , 253302E001 , 97136119 , 253303C100 , E9SZ 8100 A , 21430-06P01 , 21430-1P107 , 5L548100AA , K2N1-15-205 , 16401-67150 , 19045-PT0-004 , RS-76 , 21430-74N00 , 1F71-15-205 , 46045 , 0K2FA15205 , M04495805 , N323-15-205 , AJA415205 , 21430-1P100 , ZZM5-15-205 , 8-97241-092-0 , 8-97209-558-0 , 21430-D991A , OK2FA-15-205 , 94408139 , 8-97209-559-0 , 4495805 , 52468173 , 16304-0A020 , 533039100 , T-16R , 25330-1R000 , 45137AE000 , 19045-PCA-004 , AS0115205 , 553323K000 , 94153251 , 17920-65G50 , 25330-3Z000 , 8-97104-194-0 , 25330-0W000 , F02Z 8100 A , 97384423 , KL61-15-205 , 8-94384-423-0 , 97177872 , 16331-20040 , 19045-PR7-A07 , 53303Z000 , 253302D090

Qty:
$6.13
Stant Radiator Cap
  • Pressure Rating 16 psi This part is also available in the Engine Coolant Thermostat Kit 117KT, which contains 15188 (Engine Coolant Thermostat), 25286 (Engine Coolant Thermostat Seal) and 74162 (Engine Coolant Temperature Sensor)
  • OE Type Radiator/Coolant Recovery Tank Cap
  • 16 PSI mini radiator cap. Fits 32 mm ID, 16 mm deep neck. Made of quality material. Will bring coolant back from the overflow tank.
Brand: Stant
Additional Fitment Information:
Vehicle Block Engine CID CC
1993 - Geo Storm L 4 Cyl 1.6L 98 1588
Stant
1992 Geo Tracker Radiator Cap 4 Cyl 1.6L Stant - Safety Release Radiator Cap

P311-1140D9A    10327  New

10327 , 33064 , 31533 , 703-1393 , 7913 , ST-13R

Qty:
$7.29
Stant Radiator Cap
  • Pressure Rating 13 psi W/O Nippondenso Rad.; Check hood clearance prior to installing this cap
  • Safety Release Radiator Cap
  • 13 PSI Lev-R-Vent mini radiator cap. For open or closed system. 16 mm deep neck. Will bring back coolant from the overflow tank.
Brand: Stant
Additional Fitment Information:
Vehicle Block Engine CID CC
1992 - Geo Tracker L 4 Cyl 1.6L 98 1588
Stant
1992 Geo Tracker Radiator Cap 4 Cyl 1.6L Stant - OE Type Radiator/Coolant Recovery Tank Cap

P311-4790404    10227  New

F4BZ 8100 A , FS11-15-205 , 21430-0B200 , 0K20215205A , 21430-50A01 , FEG8-15-205 , 19045-PR3-005 , E8GY 8100 A , 3533036000 , RS-79 , 16470-76021 , 25330-36000 , 21430-7994A , 2533024100 , 21430-4B000 , ZZM2-15-205 , 82933 , 16401-16010 , 745153011 , 533017000 , RA-13 , 16401-54750 , 253405H000 , E8GY 8100 B , RS-519 , 17920-61A00 , 133-0145 , 133-0144 , F807-15-205 , MR481217 , MB605277 , 7513 , RC 67 , 31333 , AW338245 , 2533011415 , 533033001 , 16401-63010 , 17920-61AA0 , 46029 , N350-15-205 , KL78-15-205 , MR481218 , MB222066 , 96067641 , ER-29 , 96062603 , 253301G000 , 0K2C615205 , RS-102 , 2533001G00 , YM1Z-8100-AB , 17920-83100 , 16401-50071 , L95-4060 , E92Z 8100 B , F57Z 8100 A , 16480-76011 , 45113GA021 , 253301G010 , YF5Z 8100 AA , 16470-76020 , 16401-76020 , 82927 , E9ZZ 8100 B , 25330-33010 , 94847233 , 94842508 , E8BZ 8100 B , F6XZ 8100 AA , 52467188 , 21430-01F01 , 16401-0C010 , 16401-71010 , 25330-33101 , F1CZ 8100 A , L95-4080 , 21430-17C00 , 17920-78120 , 745113051 , RS-63 , K817-15-205 , 703-1695 , L95-4063 , MB660055 , 17920-82000 , 21430-7995B , 16401-74170 , 96061601 , MB222336 , 21430-2Z000 , F8B7-15-205 , OK30A-15-205 , 45113GA020 , N321-15-205 , 96051840 , 16401-50021 , ER-25 , 16401-63010-73 , MB356417 , 21430-F4305 , 644107 , 21430-4B700 , 0K30A15205 , 19045-PM3-003 , 17920-83101 , 533033101 , 46033 , 33028 , F6XH 8100 AA , 16401-50020 , F32Z 8100 A , RS-86 , 25330-14200 , MR48 1217 , 745113050 , YF5H 8100 AA , KL11-15-205A , 25330-G010 , 107 , 1640187712000 , 21430-6K000 , T-13R , 745113052 , F3XY 8100 A , 96051843 , RR-27 , 25330-25000 , RS-67 , 8941169162 , MB845036 , KL11-15-205 , 16401-15210 , 94854943 , 45113GA022 , E7GZ 8100 A , 19045-PM3-004 , 1770083100 , 533033000 , RS-72 , N3H115205 , 53-10728 , 8941532510 , E92H 8100 AB , 10227 , 21430-1B000 , MB890520 , KF01-15-205 , 21430-01F00 , N3A1-15-205A , OK202-15-205 , 19045-PR3-004 , YM1Z-8100-AA , 21430-7996E , 0K20215205 , MB660171 , 25330-33000 , MB660701 , 17920-60B20 , 21430-7995A , 21430-F430A , RS-84 , AW332158 , 25330-33100 , 2533033001 , 19045-PR3-003 , E92H 8100 AC , 17920-60B21 , 89438444230 , 21430-4B701 , 96060164 , 45113GA121 , 25330-21000 , B303-15-205A , 16401-50051 , RS-88 , MB660735 , 16401-76021 , 25330-33001 , 45113GA120 , F3XY8100B , 19045-PR7-A06 , OK2C6-15-205 , 16401-01010 , 21430-79901 , 16401-50070 , 45153AC030 , 533014201 , 16401-08010 , 16401-50050 , 21430-50A00 , D316-15-205 , RS-87 , 21430-01F02 , 2533017000 , E8BZ 8100 A

Qty:
$6.07
Stant Radiator Cap
  • Pressure Rating 13 psi This part is also available in the Engine Coolant Thermostat Kit 114KT, which contains 14678 (Engine Coolant Thermostat), 15112 (Engine Coolant Thermostat) and 74000 (Engine Coolant Temperature Sensor) W/O Nippondenso Rad.
  • OE Type Radiator/Coolant Recovery Tank Cap
  • 13 PSI mini radiator cap. Fits 32 mm ID, 16 mm deep neck. Made of quality material. Will bring coolant back from the overflow tank.
Brand: Stant
Additional Fitment Information:
Vehicle Block Engine CID CC
1992 - Geo Tracker L 4 Cyl 1.6L 98 1588
Stant
1992 Geo Tracker Radiator Cap 4 Cyl 1.6L Stant - OE Type Radiator Cap

P311-094B732    10242  New

17920-56B20 , 91172260 , 16401-02421 , 16401-31650 , 96068657 , 1640128430 , 16405-0C050 , LFB715205 , 16401-5B630 , 19045-PWA-004 , 16401-6A140 , ST-37 , 19045-PO8-013 , 16401-31480 , 8-97182-068-0 , 5-86202-367-0 , 1640175440 , 16401-50370 , 5-86206-023-0 , 19045-PY3-013 , 703-1727 , 16401-31520 , WL21-15-205 , 19045-PO8-003 , 16401-28280 , SU00301184 , 19045-PO8-004 , 16401-50371 , 17920-75F00 , 16401-31791 , 30020692 , 10242 , 19045P08003 , 1003-16 , 19045P08014 , 16401-7A470 , 19045-RAA-003 , 19045-PAA-A01 , 16401-05140 , 16405-0C020 , 16401-62100 , 19045P08013 , 7037 , 17920-66F00 , RR-42 , MR597126 , 33049 , 16401-31680 , 45137AE01A , 1640136650 , 17920-66F01 , 19045-P72-005 , 31412 , 8-97182-068-1 , 19045-PY3-003 , 19045P08004 , 19045-PO8-014

Qty:
$4.89
Stant Radiator Cap
  • Pressure Rating 16 psi This part is also available in the Engine Coolant Thermostat Kit 111KT, which contains 14078 (Engine Coolant Thermostat), 25286 (Engine Coolant Thermostat Seal) and 74138 (Engine Coolant Temperature Sensor) W/Nippondenso Rad.
  • OE Type Radiator Cap
  • 16 PSI micro radiator cap. Fits 32 mm ID, 10 mm deep. Made of durable material. Made to bring coolant back from the overflow.
Brand: Stant
Additional Fitment Information:
Vehicle Block Engine CID CC
1992 - Geo Tracker L 4 Cyl 1.6L 98 1588

Latest Geo Repair and Radiator Cap Installation Advice

CarJunky AutoAdvice

1991 Geo Prizm Overheating

Showing 2 out of 2 Posts
Question From MushMush on 1991 Geo Prizm Overheating

I have a 1991 Geo Prizm with about 170000 miles on it.

After driving it for about 2 hours straight it appears to start overheating. Whenever I stop the car I hear a gurgling/liquid sound from under the hood after the car is stopped and turned off, I haven't looked yet when the car is running and hot. This seems to be coming from the coolant reservoir. I also noticed the that reservoir container is covered and dripping in coolant, along with the area right underneath it. It seems to be too hot to check the fluids at that time but when I check them later, next day or so, there is no fluids left in either the radiator and reservoir. Before driving I made sure that all the fluid levels were at the recommended levels and used an already mixed coolant/water mixture. When adding fluids I noticed no immediate leaking. I only noticed some dripping after the car had been running from a small, about 1 inch, 90 degree elbow hose, pointing downward. This hose isnt attached to anything except the reservoir cap and looks likes its supposed to be some sort of hose to allow for overflow or something similar, but that is just a guess by me. It was just a slow drip with the car off, but still hot after driving for 2 hours. It may be coming out more when the car is running and this is where all the coolant is going.

So quick summary. Car really started to overheat on the temp gauge, when shut off car heard gurgling sounds from coolant reservoir. Coolant reservoir and nearby areas dripping in coolant. When these fluids are checked later there is no fluids in either of them and no immediate leaks when more is added.

Any ideas as to what I can do?

Thanks

Response From Loren Champlain Sr Top Rated Answer

MushMush; This could be as simple as a weak radiator cap, allowing coolant to bypass it, going into the reservoir, overflowing, ect., ect,...
On the other hand, something may be causing the engine to over heat, pressure building to the point that the cap can't handle it. Cooling fan inoperative, thermostat, head gasket, ect. Need to get the cooling system diagnosed. If the head gasket hasn't blown yet, it will if the engine gets hot enough.