Thermostat

Thermostats are an important part present under the hood of your Mazda that operate alongside other cooling system parts. Thermostats adjust the flow of coolant that gets through to the radiator. It does this by opening and closing as needed to send or prevent coolant from getting through. Coolant helps prevent overheating and contributes to the proper working of the engine. Thermostats can get damaged over time and get stuck in an open or closed position, which can cause major issues. Changing your thermostat when you notice issues will ensure your engine continues to operate properly. Recognizing the symptoms of a failing thermostat is important to catch problems early. The issues will vary depending on the core problem. For instance, you may notice various temperature reads which are inaccurate or unpredictable. Improper reads such as excessively high or low also indicate problems with the thermostat (unless there are other underlying issues such as with the radiator). In some cases, this may cause starting issues with your vehicle. Replace your thermostat with an OEM part if you need to change it out. Aftermarket components may cause issues including erroneous temperature reads during travel. For Mazda OEM thermostat replacement parts and related components, you can visit our online store.

Thermostat
8ABB-15-171-9U
Other Names: Thermostat Set More
Replaces: 8ABB-15-171
Description: B2200 More
Fits:
  • Mazda:
    • 626,
    • B2000,
    • B2200,
    • MX-6
$21.93
$15.65
$21.93
$15.65
Thermostat
8AF1-15-171-9U
Other Names: Thermostat Set More
Replaces: 8AF1-15-171, 8AF1-15-171-PT
Description: RX7 More
Fits:
  • Mazda:
    • RX-7
$21.82
$15.58
$21.82
$15.58
Thermostat
B3H8-15-171A
Other Names: Thermostat Set More
Description: B2000 More
Fits:
  • Mazda:
    • B2000,
    • GLC
$22.48
$16.04
$22.48
$16.04
Thermostat
GY01-15-171
Other Names: Thermostat No Gasket More
Replaces: AJ03-15-17X, AJ51-15-17X
Description: 3.0 LITER More
Notes: Included With Thermostat Unit. More
Fits:
  • Mazda:
    • 6,
    • MPV,
    • Tribute
$22.25
$15.89
$22.25
$15.89
Thermostat
8AH1-15-171B-9U
Other Names: Thermostat Set More
Replaces: 8AH1-15-171, 8AH1-15-171A, 8AH1-15-171B, 8AL1-15-171
Description: MPV More
Fits:
  • Mazda:
    • 929,
    • MPV
$29.93
$21.36
$29.93
$21.36
Thermostat
8AK1-15-171-9U
Other Names: Thermostat ( W O Gasket ) More
Replaces: 8AK1-15-171, 8AN1-15-171, F201-15-171, F201-15-171A
Description: 323, PROTEGE; SOHC More
Fits:
  • Mazda:
    • 323,
    • 626,
    • B2600,
    • Miata,
    • MPV,
    • MX-3,
    • MX-6,
    • Protege
  • 3 more
$21.89
$15.62
$21.89
$15.62
Thermostat
BP6F-15-171A
Other Names: Thermostat(W O Gasket) More
Replaces: 8ABE-15-171, BP6F-15-171
Description: MIATA MX5 More
Fits:
  • Mazda:
    • Miata,
    • Protege
$36.33
$25.93
$36.33
$25.93
Thermostat Gasket
9XB0-68-07S
Other Names: Gasket, Thermostat O-Ring, O-Ring Thermostat More
Description: MAZDA6; 3.0L More
Notes: Included With Thermostat Unit. More
Fits:
  • Mazda:
    • 6,
    • CX-9,
    • MPV,
    • Tribute
$6.85
$4.97
$6.85
$4.97
Thermostat Housing
B597-15-172
Other Names: Cover Thermostat More
Description: MX-3; 1.6L More
Fits:
  • Mazda:
    • MX-3
$26.32
$18.79
$26.32
$18.79
Thermostat Housing
CA60-15-170A
Other Names: Thermostat Unit, Cover Thermo More
Replaces: CA20-15-170, CA20-15-170A, CA68-15-170
Description: CX-9; FROM 6/12/08 More
Notes: Includes Thermostat And Gasket. More
Fits:
  • Mazda:
    • CX-9
$289.72
$198.13
$289.72
$198.13
Thermostatic Switch
FD01-61-J20
Other Names: Thermostat, Thermostat Nla More
Description: RX-7; MANA More
Notes: Parts & Prices For Estimating Only. More
Fits:
  • Mazda:
    • RX-7
$105.96
$72.46
$105.96
$72.46
Thermostat Housing
1F81-15-172
Other Names: Cover Thermostat More
Replaces: 1F61-15-172
Description: 3.0 LITER More
Fits:
  • Mazda:
    • B3000
$22.55
$16.10
$22.55
$16.10
Thermostat Housing
AJ57-15-171A
Other Names: Thermostat More
Replaces: AJ57-15-171
Description: MAZDA6; 3.0L; THERMOSTAT More
Notes: Included With Thermostat Cover. More
Fits:
  • Mazda:
    • 6,
    • MPV,
    • Tribute
$18.09
$13.13
$18.09
$13.13
Thermostat Housing
BP6D-15-170A
Positions: Lower
Other Names: Cover Thermostat More
Description: MIATA MX5; LOWER More
Fits:
  • Mazda:
    • Miata
$76.24
$53.50
$76.24
$53.50
Thermostat Housing
BPE8-15-172
Positions: Upper
Other Names: Thermostat Cover, Cover Thermostat More
Description: Miata mx5. Upper. More
Fits:
  • Mazda:
    • Miata
$30.34
$21.66
$30.34
$21.66
Thermostat Unit
CY01-15-170A
Other Names: Thermostat Housing, Cover Thermostat More
Replaces: CY01-15-170, ZZJ1-15-17X, ZZJ1-15-17XA
Description: To 6/12/08. CX-9. More
Notes: Includes Thermostat And Gasket. More
Fits:
  • Mazda:
    • CX-9
$596.06
$400.47
$596.06
$400.47
Thermostat Housing
G601-15-172A
Other Names: Thermostat Cover, Cover Thermo More
Replaces: G601-15-172
Description: B2600 More
Fits:
  • Mazda:
    • B2600,
    • MPV
$27.80
$19.85
$27.80
$19.85
Thermostat Housing
1F73-15-172
Other Names: Thermostat Cover More
Replaces: 1F22-15-172, 1F22-15-172A
Description: 4.0 LITER, 2001-09 More
Fits:
  • Mazda:
    • B4000
$29.37
$20.97
$29.37
$20.97
Thermostat Cover
1F82-15-172
Other Names: Thermostat Housing, Cover Thermostat More
Replaces: 1F25-15-172, 1F72-15-172
Description: 4.0 LITER, 2001-09 More
Fits:
  • Mazda:
    • B4000
$14.55
$10.56
$14.55
$10.56
Thermostat Cover
AJ03-15-172C
Other Names: Thermostat Housing, Water Outlet, Cover, Cover Thermostat More
Replaces: AJ03-15-172, AJ03-15-172A, AJ03-15-172B
Description: MAZDA6; 3.0L; THERMOSTAT COVER More
Notes: Included With Thermostat Unit. More
Fits:
  • Mazda:
    • 6,
    • MPV,
    • Tribute
$26.88
$19.19
$26.88
$19.19
Thermostat Housing
B6BF-15-172
Other Names: Water Outlet, Cover Thermostat More
Description: PROTEGE More
Fits:
  • Mazda:
    • Protege
$27.71
$19.78
$27.71
$19.78
Thermostatic Switch
BJ6B-61-J25
Other Names: Thermostat, Amplifier Thermo More
Replaces: GE4T-61-J25
Description: Protege. More
Notes: Included With Evaporator Assembly. More
Fits:
  • Mazda:
    • Protege,
    • Protege5
$60.22
$42.26
$60.22
$42.26
Thermostat Housing
FS05-15-172
Other Names: Thermostat Cover, Cover Thermo More
Description: 626, MX-6; 4 CYL More
Fits:
  • Mazda:
    • 626,
    • MX-6
$30.17
$21.54
$30.17
$21.54
Thermostat Cover Bolt
9979-40-825
Other Names: Trans Cooler Bolt, Alternator Mount Bolt, Thermostat Housing Bolt, Water Outlet Bolt, Idler Pulley Mount Bolt, Bolt Flange More
Description: 6 cylinder. Auto trans. More
Fits:
  • Mazda:
    • 2,
    • 5,
    • 626,
    • MX-6,
    • RX-8
$2.63
$1.91
$2.63
$1.91
Thermostat
1F20-15-171
Description: B2300 More
Fits:
  • Mazda:
    • B2300
$208.74
$142.75
$208.74
$142.75
Thermostat
1F62-15-172
Replaces: 1F22-15-171
Description: B4000 More
Fits:
  • Mazda:
    • B4000
$26.28
$18.75
$26.28
$18.75
Thermostat
8AB8-15-171-9U
Replaces: 8AB8-15-171, BP05-15-171
Description: PROTEGE More
Fits:
  • Mazda:
    • Miata,
    • MX-3,
    • Protege
$27.94
$19.94
$27.94
$19.94
Thermostat Housing
0290-15-172B
Other Names: Cover Thermo More
Description: B2000, B2200; CALIFORNIA More
Fits:
  • Mazda:
    • B2000,
    • B2200
$29.91
$21.35
$29.91
$21.35
Thermostat Seal
9XG0-03-19X0
Other Names: Ring O More
Description: 2.0 LITER More
Fits:
  • Mazda:
    • Tribute
$8.88
$6.45
$8.88
$6.45
Thermostat Housing
AJ51-15-176B
Other Names: Case Thermo More
Replaces: AJ51-15-176, AJ51-15-176A
Description: MAZDA6; 3.0L; CASE More
Notes: Included With Thermostat Unit. More
Fits:
  • Mazda:
    • 6,
    • MPV,
    • Tribute
$87.35
$61.31
$87.35
$61.31
Thermostat Housing
AM01-15-172
Other Names: Cover Thermo More
Description: B2600 More
Fits:
  • Mazda:
    • B2600
$19.09
$13.85
$19.09
$13.85
Thermostat Housing
BPE8-15-170A
Positions: Lower
Other Names: Cover Thermo More
Description: MIATA MX5; LOWER More
Fits:
  • Mazda:
    • Miata
$76.24
$53.50
$76.24
$53.50
Thermostat Housing
F201-15-172B
Other Names: Cover Thermo More
Description: 626, MX-6; W/O TURBO; MANUAL TRANS More
Fits:
  • Mazda:
    • 626,
    • MX-6
$25.96
$18.53
$25.96
$18.53
Thermostat Housing
FS05-15-176A
Other Names: Case, Case Thermo More
Replaces: FS05-15-176
Description: 2.0 LITER More
Fits:
  • Mazda:
    • 626,
    • MX-6,
    • Protege,
    • Protege5
$59.65
$41.86
$59.65
$41.86
Water Outlet
FP47-15-172
Other Names: Thermostat Cover, Cover Thermostat More
Description: 1.8 LITER More
Fits:
  • Mazda:
    • Protege,
    • Protege5
$30.82
$22.00
$30.82
$22.00
Thermostat Housing
JE26-15-176
Positions: Upper
Other Names: Case Thermo More
Description: 929; DOHC; UPPER More
Fits:
  • Mazda:
    • 929
$46.36
$33.09
$46.36
$33.09
Thermostat Housing
B61P-15-172
Positions: Upper
Other Names: Cover Thermo More
Description: MIATA MX5; UPPER More
Fits:
  • Mazda:
    • Miata
$25.26
$18.03
$25.26
$18.03
Thermostat Housing
1F20-15-172
Other Names: Cover Thermo More
Description: B2300 More
Fits:
  • Mazda:
    • B2300
$83.53
$58.63
$83.53
$58.63
Thermostat Gasket
1F22-15-173
Other Names: Gasket Flat O-Ring More
Description: 4.0 LITER, 2001-09 More
Fits:
  • Mazda:
    • B4000
$6.88
$5.00
$6.88
$5.00
Thermostat Housing
8872-15-170A
Other Names: Cover Thermo More
Description: RX7; W/O FUEL INJECTION More
Fits:
  • Mazda:
    • RX-7
$31.73
$22.65
$31.73
$22.65
Thermostat Gasket
9XG0-28-37X0
Other Names: Seal O Ring More
Description: B4000 More
Fits:
  • Mazda:
    • B4000
$7.21
$5.24
$7.21
$5.24
Thermostat Unit
AJC1-15-17Z
Other Names: Water Outlet, Outlet Water More
Replaces: AJ51-15-17Z, AJ51-15-17ZA, AJ57-15-17Z
Description: TRIBUTE More
Fits:
  • Mazda:
    • 6,
    • MPV,
    • Tribute
$127.78
$87.38
$127.78
$87.38
Thermostatic Switch
F151-61-J22A
Other Names: Sensor, Sensor Valve More
Replaces: F151-61-J22
Description: RX-8. More
Notes: Included With Evaporator Assembly. More
Fits:
  • Mazda:
    • RX-8
$39.13
$27.93
$39.13
$27.93
Thermostat Housing
F202-15-172B
Other Names: Cover Thermo More
Description: 626 & MX-6; W/TURBO More
Fits:
  • Mazda:
    • 626,
    • MX-6
$25.96
$18.53
$25.96
$18.53
Thermostat Housing
0222-15-172B
Other Names: Cover Thermo More
Description: B2000, B2200; FEDERAL More
Fits:
  • Mazda:
    • B2000,
    • B2200
$17.51
$12.72
$17.51
$12.72
Thermostat Housing
AJ03-15-176A
Other Names: Case Thermo More
Replaces: AJ03-15-176
Description: TRIBUTE; 3.0L More
Fits:
  • Mazda:
    • Tribute
$146.27
$100.04
$146.27
$100.04
Thermostat Seal
CA19-15-165
Other Names: Gasket W.Pump Inlet More
Replaces: CA60-15-165, ZZJ1-15-136
Fits:
  • Mazda:
    • 6,
    • CX-9
$5.08
$3.69
$5.08
$3.69
Thermostatic Switch
FE03-61-J22
Other Names: Sensor, Sensor Valve More
Description: RX-8. More
Notes: Included With Evaporator Assembly. More
Fits:
  • Mazda:
    • RX-8
$49.62
$35.43
$49.62
$35.43
Thermostat Housing
FE1H-15-172A
Other Names: Cover Thermo More
Replaces: FE1H-15-172
Description: B2000, B2200; ALL More
Fits:
  • Mazda:
    • B2000,
    • B2200
$26.91
$19.21
$26.91
$19.21
Thermostat Housing
G601-15-170
Other Names: Outlet Water More
Description: 2.6L More
Fits:
  • Mazda:
    • B2600,
    • MPV
$81.20
$56.99
$81.20
$56.99

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