What are the differences between oil pressure senders and oil pressure switches, and how are they tested and installed on Mazda B2200?

Oil pressure senders are utilized for oil pressure gauges, while oil pressure switches are designated for vehicles equipped solely with a low oil pressure warning lamp. The locations of these components vary by engine type: for the 2.2L engine, they are found on the left side rear of the engine in the cylinder head; for the 2.6L engine, on the right-hand side of the engine block above the oil filler; for the 3.0L engine (MPV), on the left-hand lower side of the engine at the oil filter adapter; and for the 4.0L engine, on the left side front of the engine below the cylinder head in the engine block. To test the oil pressure switch, open the hood and locate the switch, then disconnect the wire and attach one end of a jumper wire to the terminal on the end of the wire, touching the other end to a good engine ground while an assistant observes the instrument gauge cluster for the illumination of the low oil warning lamp. If the lamp does not illuminate, try a different grounding area; if it still does not illuminate, touch the jumper wire to the negative battery post to determine if the engine is properly grounded. If the lamp illuminates, the grounding is the issue; if not, connect the original wire to the oil pressure switch, turn the ignition switch to the ON position without starting the engine, and check the other lights on the instrument cluster to assess the condition of the oil pressure switch and power supply. For removal and installation, first disconnect the negative battery cable, then disconnect the wiring at the sender/switch and remove the oil pressure sender/switch from the engine. For installation, coat the threads with electrically conductive sealer, thread the unit into place, tighten it to 10-13 ft. lbs (13-17Nm), reattach the wiring, and connect the negative battery cable.

How to test the oil pressure switch and How to remove and install on Mazda Millenia?

To verify the oil pressure switch, connect an ohmmeter between the oil pressure switch and ground to determine continuity with the engine off and on. Start by removing the single wire harness connector of the switch. Switch on the ignition switch; the lamp indicating the presence of oil pressure must be off, and it is not, then look at the wire harness and see whether it has shorted to ground. Attach the ohmmeter to the pressure switch and ground, when the engine is off the ohmmeter must show continuity, and when the engine is running, must show no continuity. In case the readings are not indicated as planned, carry out an engine oil pressure check, and in case the oil pressure is normal, change the switch. Removal and installation To be removed and installed, place oil pressure switch or filter close to the oil filter. Disassemble the connector with the wire harness by unscrewing it counterclockwise, and wipe off the switch by wiping the connector. Installation This is a 3 thread installation where the thread three up, and the head of the switch sealed with sealant of the third thread then tightened to 8.7-13 ft. lbs. (12-17Nm).

Genuine Mazda Oil Pressure Switch

Oil Pressure Sender Switch

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22 Oil Pressure Switches found

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Mazda Oil Pressure Sending Unit Part Number: LF01-18-501A
$17.50 MSRP: $23.34
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Product Specifications
- Other Name: Switch, Oil Pressure; Oil Pressure Sending Unit
- Replaces: L3H5-18-501, LF01-18-501
Fits the following Mazda Models:
- 3 | 2004-2013 | i, Mazdaspeed, S, SP23 | 4 Cyl 2.0 L GAS, 4 Cyl 2.3 L GAS, 4 Cyl 2.5 L GAS
- 5 | 2012-2015, 2006-2010 | Grand Touring, Sport, Touring | 4 Cyl 2.3 L GAS, 4 Cyl 2.5 L GAS
- 6 | 2003-2008 | i, Mazdaspeed, S | 4 Cyl 2.3 L GAS, 6 Cyl 3.0 L GAS
- CX-7 | 2007-2012 | Grand Touring, Sport, SV, Touring | 4 Cyl 2.3 L GAS, 4 Cyl 2.5 L GAS
- MX-5 Miata | 2006-2015 | 25th Anniversary Edition, Base, Club, Club Spec, Grand Touring, Special Edition, Sport, SV, Touring | 4 Cyl 2.0 L GAS
- Tribute | 2005-2006 | i | 4 Cyl 2.3 L GAS
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Mazda Oil Pressure Sending Unit Part Number: E5D3-18-501
$20.44 MSRP: $27.26
You Save: $6.82 (26%)
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Product Specifications
- Other Name: Switch Oil
Fits the following Mazda Models:
- B2000 | 1986, 1984 | Base, LX, SE-5, Sundowner Base, Sundowner SE-5, Sundowner Sport | 4 Cyl 2.0 L GAS
- B2200 | 1987-1989 | Base, LX, SE-5 | 4 Cyl 2.2 L GAS
- B2600 | 1990-1993 | Base, LE-5, SE-5 | 4 Cyl 2.6 L GAS
- MPV | 1989-1994 | Cargo, Passenger | 4 Cyl 2.6 L GAS
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Mazda Oil Pressure Sending Unit Part Number: 1F20-18-501C
$22.14 MSRP: $29.52
You Save: $7.38 (25%)
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Product Specifications
- Other Name: Switch, Oil Pressure; Oil Pressure Sending Unit
- Replaces: 1F20-18-501, 1F20-18-501A, 1F20-18-501B, 1F00-18-501, CY01-18-501A, CY01-18-501
Fits the following Mazda Models:
- 6 | 2009-2013 | S | 6 Cyl 3.7 L GAS
- B2300 | 2001-2007 | Base, SE, SX | 4 Cyl 2.3 L GAS
- B2500 | 2001 | SE, SX | 4 Cyl 2.5 L GAS
- B3000 | 2001-2007 | Base, DS, SE | 6 Cyl 3.0 L FLEX, 6 Cyl 3.0 L GAS
- B4000 | 2000-2009 | Base, DS, SE, Troy Lee | 6 Cyl 4.0 L GAS
- CX-9 | 2007-2015 | Grand Touring, Sport, Touring | 6 Cyl 3.5 L GAS, 6 Cyl 3.7 L GAS
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Mazda Oil Pressure Sending Unit Part Number: B366-18-501
$23.25 MSRP: $31.01
You Save: $7.76 (26%)
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Product Specifications
- Other Name: Switch Oil
Fits the following Mazda Models:
- 626 | 1990-1992 | DX, GT, LE, LX | 4 Cyl 2.2 L GAS
- B2200 | 1990-1993 | Base, LE-5, SE-5 | 4 Cyl 2.2 L GAS
- MX-6 | 1990-1992 | DX, GT, GT 4WS, LE, LX | 4 Cyl 2.2 L GAS
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Mazda Oil Pressure Sending Unit Part Number: B367-18-501B
$24.51 MSRP: $32.69
You Save: $8.18 (26%)
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Product Specifications
- Other Name: Switch Oil
- Replaces: B367-18-501, FS11-18-50X, B367-18-501A
Fits the following Mazda Models:
- 2 | 2011-2014 | Sport, Touring | 4 Cyl 1.5 L GAS
- 323 | 1990-1994 | Base, SE | 4 Cyl 1.6 L GAS
- 626 | 1993-2002 | DX, ES, LX | 4 Cyl 2.0 L GAS, 6 Cyl 2.5 L GAS
- MX-3 | 1992-1995 | Base, GS | 4 Cyl 1.6 L GAS, 6 Cyl 1.8 L GAS
- MX-6 | 1993-1997 | Base, LS, M Edition | 4 Cyl 2.0 L GAS, 6 Cyl 2.5 L GAS
- Miata | 1999-2005, 1995-1997 | 10th Anniversary, Base, LS, M Edition, Mazdaspeed, SE, Shinsen, STO | 4 Cyl 1.8 L GAS
- Millenia | 1995-2002 | Base, L, Millennium Edition, S | 6 Cyl 2.3 L GAS, 6 Cyl 2.5 L GAS
- Protege | 1990-2003 | DX, ES, LX, Mazdaspeed, MP3, SE | 4 Cyl 1.5 L GAS, 4 Cyl 1.6 L GAS, 4 Cyl 1.8 L GAS, 4 Cyl 2.0 L GAS
- Protege5 | 2002-2003 | Base | 4 Cyl 2.0 L GAS
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Mazda Oil Pressure Sending Unit Part Number: R207-18-501
$24.93 MSRP: $33.24
You Save: $8.31 (25%)
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Product Specifications
- Other Name: Switch Oil
Fits the following Mazda Models:
- 626 | 1984-1989 | DX, GT, LX, Turbo, Turbo 4WS | 4 Cyl 2.0 L GAS, 4 Cyl 2.2 L GAS
- B2200 | 1984 | Sundowner Base | 4 Cyl 2.2 L DIESEL
- MX-6 | 1988-1989 | DX, GT, GT 4WS, LX | 4 Cyl 2.2 L GAS
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Mazda Oil Pressure Sending Unit Part Number: 1F21-18-501C
$27.00 MSRP: $36.01
You Save: $9.01 (26%)
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Product Specifications
- Other Name: Switch, Oil Pressure; Oil Pressure Sending Unit
- Replaces: 1F21-18-501A, 1F21-18-501B, 1F21-18-501, L3N1-18-501A, L3N1-18-501B
Fits the following Mazda Models:
- 6 | 2011-2013 | i | 4 Cyl 2.5 L GAS
- B2300 | 2005-2009 | Base | 4 Cyl 2.3 L GAS
- B3000 | 2005-2007 | Base, DS | 6 Cyl 3.0 L GAS
- Tribute | 2008-2011 | Hybrid, i | 4 Cyl 2.3 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 2.3 L GAS, 4 Cyl 2.5 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 2.5 L GAS
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Mazda Oil Pressure Sending Unit Part Number: PE01-18-501B
$32.06 MSRP: $42.75
You Save: $10.69 (26%)
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Product Specifications
- Other Name: Switch, Oil Pressure
- Replaces: PE01-18-501A, PE01-18-501
Fits the following Mazda Models:
- 3 | 2012-2018 | Grand Touring, i, i Grand Touring, I Sport, i SV, I Touring, s Grand Touring, s Touring, Sport, Touring | 4 Cyl 2.0 L GAS, 4 Cyl 2.5 L GAS
- 6 | 2014-2017 | Grand Touring, Sport, Touring | 4 Cyl 2.5 L GAS
- CX-3 | 2016-2018 | Grand Touring, Sport, Touring | 4 Cyl 2.0 L GAS
- CX-5 | 2013-2018 | Grand Select, Grand Touring, Sport, Touring | 4 Cyl 2.0 L GAS, 4 Cyl 2.5 L GAS
- MX-5 Miata | 2016-2022 | 100th Anniversary Special Edition, Club, Grand Touring, RF 100th Anniversary Special Edition, RF Club, RF Grand Touring, Sport | 4 Cyl 2.0 L GAS
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Mazda Oil Pressure Sending Unit Part Number: FNE2-21-2J1A
$82.10 MSRP: $109.49
You Save: $27.39 (26%)
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Product Specifications
- Other Name: Switch, Oil Pressure
- Replaces: FSS0-21-2J1A
Fits the following Mazda Models:
- 6 | 2009-2010 | i | 4 Cyl 2.5 L GAS
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Mazda Oil Pressure Sending Unit Part Number: BU01-21-291A
$80.50 MSRP: $107.35
You Save: $26.85 (26%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Switch, Oil Pressure
Fits the following Mazda Models:
- RX-7 | 1984-1985 | GS, GSL, GSL-SE, S | 2 Cyl 1.1 L GAS, 2 Cyl 1.3 L GAS
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Mazda Oil Pressure Sending Unit Part Number: PY8V-18-541B
$112.74 MSRP: $150.34
You Save: $37.60 (26%)
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Product Specifications
- Other Name: Sensor, Oil Pressure; Oil Pressure Sending Unit
- Replaced by: PX9R-18-541
Fits the following Mazda Models:
- 3 | 2019-2023 | 2.0, 2.5 S, 2.5 Turbo, 2.5 Turbo Premium Plus, Base, Carbon Edition, Preferred, Premium, Select | 4 Cyl 2.0 L GAS, 4 Cyl 2.5 L GAS
- 6 | 2018-2021 | Carbon Edition, Grand Touring, Grand Touring Reserve, Signature, Sport, Touring | 4 Cyl 2.5 L GAS
- CX-3 | 2019-2020 | Grand Touring, Sport, Touring | 4 Cyl 2.0 L GAS
- CX-30 | 2020-2023 | 2.5 S, 2.5 S Carbon Edition, 2.5 Turbo, Base, Preferred, Premium, Select | 4 Cyl 2.5 L GAS
- CX-5 | 2019-2022 | 2.5 S, 2.5 S Carbon Edition, 2.5 Turbo, 2.5 Turbo Signature, Carbon Edition, Carbon Edition Turbo, Grand Touring, Grand Touring Reserve, Signature, Sport, Touring | 4 Cyl 2.2 L DIESEL, 4 Cyl 2.5 L GAS
- CX-9 | 2016-2021 | Carbon Edition, Grand Touring, Signature, Sport, Touring | 4 Cyl 2.5 L GAS
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Mazda Oil Pressure Sending Unit Part Number: N3R1-18-541
$113.48 MSRP: $151.32
You Save: $37.84 (26%)
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Product Specifications
- Other Name: Sensor, Oil Pressure
Fits the following Mazda Models:
- RX-8 | 2009-2011 | Grand Touring, R3, Sport, Touring | 2 Cyl 1.3 L GAS
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Mazda Oil Pressure Sending Unit Part Number: N201-14-820
$124.90 MSRP: $166.57
You Save: $41.67 (26%)
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Product Specifications
- Other Name: Gauge Unit, Oil Pressure
Fits the following Mazda Models:
- RX-7 | 1990-1991 | Base, Convertible, GTU, GTUs, GXL, GXL 2+2, Turbo | 2 Cyl 1.3 L GAS
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Mazda Oil Pressure Sending Unit Part Number: N3A1-14-820
$163.20 MSRP: $217.64
You Save: $54.44 (26%)
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Product Specifications
- Other Name: Gauge Unit, Oil Pressure
Fits the following Mazda Models:
- RX-7 | 1993-1995 | Base, R1, R2, Touring | 2 Cyl 1.3 L GAS
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Mazda Oil Pressure Sending Unit Part Number: N3A1-10-470A
$164.76 MSRP: $219.73
You Save: $54.97 (26%)
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Product Specifications
- Other Name: Sensor
- Replaces: N3A1-10-470
Fits the following Mazda Models:
- RX-7 | 1993-1995 | Base, R1, R2, Touring | 2 Cyl 1.3 L GAS
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Mazda Oil Pressure Sending Unit Part Number: N201-10-730
$183.84 MSRP: $245.17
You Save: $61.33 (26%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor, Oil Level
Fits the following Mazda Models:
- RX-7 | 1984-1985 | GS, GSL, GSL-SE, S | 2 Cyl 1.1 L GAS, 2 Cyl 1.3 L GAS
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Mazda Oil Pressure Sending Unit Part Number: B61P-18-501
$234.78 MSRP: $313.09
You Save: $78.31 (26%)
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Product Specifications
- Other Name: Switch Oil
Fits the following Mazda Models:
- Miata | 1990-1994 | Base, LE, M Edition, SE | 4 Cyl 1.6 L GAS, 4 Cyl 1.8 L GAS
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Mazda Oil Pressure Sending Unit Part Number: N3H1-18-501
$22.38 MSRP: $29.84
You Save: $7.46 (25%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Switch, Oil Pressure
Fits the following Mazda Models:
- RX-8 | 2004-2008 | 40th Anniversary Edition, Base, Grand Touring, Shinka, Sport, Touring | 2 Cyl 1.3 L GAS
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Mazda Oil Pressure Sending Unit Part Number: JF01-18-501A
$7.82 MSRP: $10.27
You Save: $2.45 (24%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Switch Oil
Fits the following Mazda Models:
- 929 | 1988-1991 | Base, S | 6 Cyl 3.0 L GAS
- MPV | 1989-1998 | Cargo, DX, ES, L, LX, LXE, Passenger | 6 Cyl 3.0 L GAS
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Mazda Oil Pressure Sending Unit Part Number: ZZC0-18-501A
$118.75 MSRP: $158.37
You Save: $39.62 (26%)
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Product Specifications
- Other Name: Switch, Oil Black Connector
- Replaces: AJC1-18-501, ZZC0-18-501, ZZTT-18-501, GY01-18-501, GY01-18-501A
Fits the following Mazda Models:
- 6 | 2003-2008 | i, Mazdaspeed, S | 4 Cyl 2.3 L GAS, 6 Cyl 3.0 L GAS
- MPV | 2000-2006 | DX, ES, LX, LX-SV | 6 Cyl 2.5 L GAS, 6 Cyl 3.0 L GAS
- Tribute | 2008-2011, 2001-2006 | DX, ES, LX, S | 6 Cyl 3.0 L FLEX, 6 Cyl 3.0 L GAS
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1-20 of 22 Results

Mazda Oil Pressure Switch

Mazda Oil Pressure Switch ensures the safety of the engine by immediately notifying the driver if there is a movement of oil pressure out of the safe range. Mazda has made a name for itself with cars that are lively on winding roads, and that spirit is connected to smart technology such as efficient Skyactiv engines, Kodo styling that looks ready to pounce and i-Activsense features that keep occupants confident in any traffic. The brand was started in 1931 and became famous in the 1960s with the rotary engine and now is exploring electric drive and mild hybrids and testing i-Activ AWD on harsh terrain proving Mazda is focused on innovation that increases the fun without wasting fuel. Just like the chassis strives for balance, the universal Oil Pressure Switch helps to give balance inside every engine using a small diaphragm and contacts to open or close an electrical circuit based on the actual oil flow. When pressure falls too low or rises too high, the Oil Pressure Switch trips the dashboard light so the driver can take action before metal surfaces grind, a simple but important defense that is run every second with no software or other power requirements. Its sturdy design lends itself to every model in the Mazda range, with fast feedback, a long service life and low cost. The Mazda range now makes its ownership more worry free without losing the fun aspect that it promises.

You'll get great performance and real durability when you pick genuine OEM Oil Pressure Switch. Mazda builds these using high-quality materials and official factory methods to ensure they hold up mile after mile. You deserve that Mazda reliability without the headache of cheap knockoffs. It is easy to find exactly what you need in our huge inventory of genuine parts. Plus, every OEM part carries a real manufacturer's warranty for your peace of mind. You will love our low prices too. Order today and we will ship your brand-new parts fast. They often reach your door in just a few days.

Mazda Oil Pressure Switch Parts and Q&A

Oil Pressure Sending Unit
B366-18-501
Q: What are the differences between oil pressure senders and oil pressure switches, and how are they tested and installed on Mazda B2200?
A:
Oil pressure senders are utilized for oil pressure gauges, while oil pressure switches are designated for vehicles equipped solely with a low oil pressure warning lamp. The locations of these components vary by engine type: for the 2.2L engine, they are found on the left side rear of the engine in the cylinder head; for the 2.6L engine, on the right-hand side of the engine block above the oil filler; for the 3.0L engine (MPV), on the left-hand lower side of the engine at the oil filter adapter; and for the 4.0L engine, on the left side front of the engine below the cylinder head in the engine block. To test the oil pressure switch, open the hood and locate the switch, then disconnect the wire and attach one end of a jumper wire to the terminal on the end of the wire, touching the other end to a good engine ground while an assistant observes the instrument gauge cluster for the illumination of the low oil warning lamp. If the lamp does not illuminate, try a different grounding area; if it still does not illuminate, touch the jumper wire to the negative battery post to determine if the engine is properly grounded. If the lamp illuminates, the grounding is the issue; if not, connect the original wire to the oil pressure switch, turn the ignition switch to the ON position without starting the engine, and check the other lights on the instrument cluster to assess the condition of the oil pressure switch and power supply. For removal and installation, first disconnect the negative battery cable, then disconnect the wiring at the sender/switch and remove the oil pressure sender/switch from the engine. For installation, coat the threads with electrically conductive sealer, thread the unit into place, tighten it to 10-13 ft. lbs (13-17Nm), reattach the wiring, and connect the negative battery cable.
Oil Pressure Sending Unit
B367-18-501B
Q: How to test the oil pressure switch and How to remove and install on Mazda Millenia?
A:
To verify the oil pressure switch, connect an ohmmeter between the oil pressure switch and ground to determine continuity with the engine off and on. Start by removing the single wire harness connector of the switch. Switch on the ignition switch; the lamp indicating the presence of oil pressure must be off, and it is not, then look at the wire harness and see whether it has shorted to ground. Attach the ohmmeter to the pressure switch and ground, when the engine is off the ohmmeter must show continuity, and when the engine is running, must show no continuity. In case the readings are not indicated as planned, carry out an engine oil pressure check, and in case the oil pressure is normal, change the switch. Removal and installation To be removed and installed, place oil pressure switch or filter close to the oil filter. Disassemble the connector with the wire harness by unscrewing it counterclockwise, and wipe off the switch by wiping the connector. Installation This is a 3 thread installation where the thread three up, and the head of the switch sealed with sealant of the third thread then tightened to 8.7-13 ft. lbs. (12-17Nm).