How to replace the differential seal on Mazda MX-5 Miata?

Lift the back of the car and place it on jackstands so that it is secure and then take off the back wheels and the brake calipers. The second step is to take out the exhaust system rear half. Mark the driveshaft and companion flange to help in realigning the driveshaft during assembly, then remove the driveshaft. Take out the drain plug of the differential housing and then drain out the differential lubricant in a container; when fully drained, fit the drain plug. Position inch-pound torque wrench so that it contacts the pinion shaft nut and gradually turn the pinion shaft nut and take note of the amount of torque required to initiate the start of the pinion shaft turning. Indicate the position of the pinion nut and companion flange, and then grip the companion flange with some suitable tool and take out the pinion nut and be sure to keep the shaft still. Lift the companion flange (with the help of a puller, perhaps) and having observed the exposed side of the oil seal, now tediously peel it off the differential with a screwdriver or pry bar, careful not to scratch the splines on the pinion shaft. Wash the oil seal mounting surface and tap the new seal into position making sure that it fits in squarely. Check the splines on the pinion shaft and pinpoint any burrs and nicks and remove them using a crocus cloth and wiping off the splines. Install the companion flange, aligning it to its position when removed and rather lightly beating on it with a soft faced hammer till the pinion nut can be started on the pinion shaft. Withhold the companion flange and tighten the pinion nut to the lowest torque, and then continue tightening the pinion nut with small steps and measuring the preload with frequent rotation torque readings, so as not to drastically decrease the pinion bearing preload by backing off the pinion nut. Lastly, fit the driveshaft, brake calipers, and wheels, fill the differential with oil, drop the vehicle, and test drive to ensure that there are no leaks.

How Is the Rear Axle Pinion Bearing Preload Reset and the Differential Seal Replaced During Service on Mazda B2200?

The service procedure includes careful resetting of the pinion bearing preload. The first step is to safely raise the vehicle and support it. Next, remove the wheels and brake drums. Mark the driveshaft and axle companion flange to ensure they are reinstalled correctly, then remove the driveshaft. Using a torque wrench, obtain the value of the torque required to maintain the pinion rotating through several revolutions. Using a suitable tool to hold the companion flange, remove the pinion nut. Mark the companion flange concerning the pinion shaft for later reinstallation. Make use of a suitable puller to pull off the rear axle companion flange and use a small prybar to pull out the seal from the carrier. When installing, ensure no burrs are present on the pinion shaft splines. Apply grease to the pinion seal lips and install using a seal installer. Check the sealing surface of the old companion flange for damage. If damaged, replace with new flange. Apply grease to the splines. Align the markings located on the flange and the pinion shaft at the time of assembly. Furthermore, do not hammer or power in the companion flange. Install a new nut on the pinion shaft while holding the companion flange tight. Tighten the nut on the pinion and rotate the pinion at least occasionally to ensure the bearings seat properly. Take the torque preload reading frequently until the original preload reading is achieved. The pinion nut should never be backed off to reduce preload. If a reduction is necessary, a new collapsible pinion spacer and nut shall be installed. To finish the job, put the driveshaft back in and check carrier fluid level before lowering vehicle.

Genuine Mazda Differential Seal

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26 Differential Seals found

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Mazda Output Shaft Seal Part Number: P016-27-238
$11.00 MSRP: $14.66
You Save: $3.66 (25%)
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Product Specifications
- Other Name: Seal, Oil; Axle Seal
Fits the following Mazda Models:
- 929 | 1988-1991 | Base, S | 6 Cyl 3.0 L GAS
- RX-7 | 1989-1991 | Turbo | 2 Cyl 1.3 L GAS
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Mazda Seal Part Number: ZZC0-27-238
$16.00 MSRP: $21.33
You Save: $5.33 (25%)
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Product Specifications
- Other Name: Seal, Oil; Axle Seal, Side Seal
- Position: Driver Side
- Replaces: NA01-27-238, ZZP0-88-166, ZZP0-88-166A
Fits the following Mazda Models:
- B2300 | 2001-2009 | Base, SE, SX | 4 Cyl 2.3 L GAS
- B2500 | 1998-2001 | SE, SX, Troy Lee | 4 Cyl 2.5 L GAS
- B3000 | 1998-2007 | Base, DS, SE, SX, Troy Lee | 6 Cyl 3.0 L FLEX, 6 Cyl 3.0 L GAS
- B4000 | 1998-2009 | Base, DS, SE, Troy Lee | 6 Cyl 4.0 L GAS
- Tribute | 2008-2011 | Hybrid, S, 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, 6 Cyl 3.0 L FLEX, 6 Cyl 3.0 L GAS
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Mazda Pinion Seal Part Number: T020-27-165
$15.00 MSRP: $20.00
You Save: $5.00 (25%)
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Product Specifications
- Other Name: Oil Seal
Fits the following Mazda Models:
- Miata | 1990-1993 | Base, LE, SE | 4 Cyl 1.6 L GAS
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Mazda Pinion Seal Part Number: MA02-27-165A
$11.81 MSRP: $15.75
You Save: $3.94 (26%)
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Product Specifications
- Other Name: Seal, Oil
- Replaces: MA02-27-165
Fits the following Mazda Models:
- Miata | 1999-2005, 1994-1997 | 10th Anniversary, Base, LS, M Edition, Mazdaspeed, SE, STO, Shinsen | 4 Cyl 1.8 L GAS
- MX-5 Miata | 2016-2023 | 100th Anniversary Special Edition, Club, Grand Touring, RF 100th Anniversary Special Edition, RF Club, RF GT, RF Grand Touring, Sport | 4 Cyl 2.0 L GAS
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Mazda Output Shaft Seal Part Number: R004-27-238
$11.49 MSRP: $15.32
You Save: $3.83 (25%)
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Product Specifications
- Other Name: Seal, Oil
Fits the following Mazda Models:
- MX-5 Miata | 2006-2015 | 25th Anniversary Edition, Base, Club, Club Spec, Grand Touring, SV, Special Edition, Sport, Touring | 4 Cyl 2.0 L GAS
- RX-8 | 2004-2011 | 40th Anniversary Edition, Base, Grand Touring, R3, Shinka, Sport, Touring | 2 Cyl 1.3 L GAS
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Mazda Oil Seal Part Number: M0A7-27-238A
$16.69 MSRP: $22.25
You Save: $5.56 (25%)
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Product Specifications
- Other Name: Seal, Oil; Axle Seal
- Replaces: M0A7-27-238
Fits the following Mazda Models:
- 6 | 2006-2007 | Mazdaspeed, S, i | 4 Cyl 2.3 L GAS, 6 Cyl 3.0 L GAS
- CX-7 | 2007-2012 | Grand Touring, SV, Sport, Touring | 4 Cyl 2.3 L GAS, 4 Cyl 2.5 L GAS
- CX-9 | 2007-2015 | Grand Touring, Sport, Touring | 6 Cyl 3.5 L GAS, 6 Cyl 3.7 L GAS
- MPV | 1996-1998 | DX, ES, LX | 6 Cyl 3.0 L GAS
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Mazda Seal Part Number: M054-27-165
$15.63 MSRP: $20.83
You Save: $5.20 (25%)
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Product Specifications
- Other Name: Oil Seal; Pinion Seal, Pinion Shaft Seal
Fits the following Mazda Models:
- 6 | 2006-2007 | Mazdaspeed, S, i | 4 Cyl 2.3 L GAS, 6 Cyl 3.0 L GAS
- B2200 | 1990-1993 | Base, LE-5, SE-5 | 4 Cyl 2.2 L GAS
- CX-7 | 2007-2012 | Grand Touring, SV, Sport, Touring | 4 Cyl 2.3 L GAS, 4 Cyl 2.5 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 Pinion Seal Part Number: 0604-27-018
$5.85 MSRP: $7.81
You Save: $1.96 (26%)
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Product Specifications
- Other Name: Oil Seal
Fits the following Mazda Models:
- B2000 | 1984 | Sundowner Base, Sundowner SE-5, Sundowner Sport | 4 Cyl 2.0 L GAS
- B2200 | 1984 | Sundowner Base | 4 Cyl 2.2 L DIESEL
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Mazda Pinion Seal Part Number: M0A3-27-165
$10.86 MSRP: $14.48
You Save: $3.62 (25%)
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Product Specifications
- Other Name: Oil Seal; Hub Oil Seal, Inner Seal, Rear Seal
Fits the following Mazda Models:
- B2600 | 1989 | Base, LX, SE-5 | 4 Cyl 2.6 L GAS
- MPV | 1989-1998 | Cargo, DX, ES, L, LX, LXE, Passenger | 4 Cyl 2.6 L GAS, 6 Cyl 3.0 L GAS
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Mazda Seal, Oil Part Number: RA21-27-238
$11.25 MSRP: $15.00
You Save: $3.75 (25%)
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Product Specifications
- Other Name: SEAL,OIL; Axle Seal, Output Shaft Seal
Fits the following Mazda Models:
- CX-70 | 2025 | PHEV, Turbo, Turbo S | 4 Cyl 2.5 L PLUG-IN HYBRID EV-GAS (PHEV), 6 Cyl 3.3 L MILD HYBRID EV-GAS (MHEV)
- CX-90 | 2024-2025 | PHEV, Turbo, Turbo S | 4 Cyl 2.5 L PLUG-IN HYBRID EV-GAS (PHEV), 6 Cyl 3.3 L MILD HYBRID EV-GAS (MHEV)
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Mazda Seal Part Number: 1F70-27-018
$12.54 MSRP: $16.72
You Save: $4.18 (25%)
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Product Specifications
- Other Name: Seal, Oil; Pinion Seal
- Replaces: 1F00-27-018, 1F00-27-018A
Fits the following Mazda Models:
- B2300 | 2001-2009 | Base, SE, SX | 4 Cyl 2.3 L GAS
- B2500 | 1998-2001 | SE, SX, Troy Lee | 4 Cyl 2.5 L GAS
- B3000 | 1998-2007 | Base, DS, SE, SX, Troy Lee | 6 Cyl 3.0 L FLEX, 6 Cyl 3.0 L GAS
- B4000 | 1998-2009 | Base, DS, SE, Troy Lee | 6 Cyl 4.0 L GAS
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Mazda Pinion Seal Part Number: R001-27-165
$21.08 MSRP: $28.11
You Save: $7.03 (26%)
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Product Specifications
- Other Name: Oil Seal; Front Seal
- Replaces: P017-27-165
Fits the following Mazda Models:
- 929 | 1988-1995 | Base, S | 6 Cyl 3.0 L GAS
- B2600 | 1990-1993, 1987-1988 | Base, LE-5, LX, SE-5 | 4 Cyl 2.6 L GAS
- MPV | 1989-1998 | Cargo, DX, ES, L, LX, LXE, Passenger | 4 Cyl 2.6 L GAS, 6 Cyl 3.0 L GAS
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Mazda Pinion Seal Part Number: M005-27-165
$15.74 MSRP: $20.98
You Save: $5.24 (25%)
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Product Specifications
- Other Name: Oil Seal
Fits the following Mazda Models:
- B2000 | 1986-1987 | Base, LX, SE-5 | 4 Cyl 2.0 L GAS
- B2200 | 1987-1989 | Base, LX, SE-5 | 4 Cyl 2.2 L GAS
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Mazda Pinion Seal Part Number: KA01-27-165
$8.10 MSRP: $10.80
You Save: $2.70 (25%)
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Product Specifications
- Other Name: Seal, Oil; Pinion Shaft Seal
Fits the following Mazda Models:
- CX-3 | 2016-2020 | Grand Touring, Sport, Touring | 4 Cyl 2.0 L GAS
- CX-5 | 2013-2024 | 2.5 S, 2.5 S Carbon Edition, 2.5 Turbo, 2.5 Turbo Signature, Carbon Edition, Carbon Edition Turbo, Grand Select, Grand Touring, Grand Touring Reserve, Signature, Sport, Touring | 4 Cyl 2.0 L GAS, 4 Cyl 2.2 L DIESEL, 4 Cyl 2.5 L GAS
- CX-9 | 2016-2023 | Carbon Edition, Grand Touring, Signature, Sport, Touring, Touring Plus | 4 Cyl 2.5 L GAS
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Mazda Pinion Seal Part Number: FZ02-27-238
$9.68 MSRP: $12.91
You Save: $3.23 (26%)
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Product Specifications
- Other Name: Seal, Oil; Axle Seal
Fits the following Mazda Models:
- 3 | 2019-2024 | 2.0, 2.5 S, Base, Carbon Edition, Preferred, Premium, Select, Select Sport | 4 Cyl 2.0 L GAS, 4 Cyl 2.5 L GAS
- CX-50 | 2023-2025 | 2.5 S, 2.5 Turbo, Hybrid Preferred, Hybrid Premium | 4 Cyl 2.5 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 2.5 L GAS
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Mazda Pinion Seal Part Number: GF7L-27-238
$16.30 MSRP: $21.74
You Save: $5.44 (26%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Seal, Oil; Axle Seal
Fits the following Mazda Models:
- 3 | 2019-2024 | 2.5 Carbon Turbo, 2.5 S, 2.5 Turbo, 2.5 Turbo Premium Plus, Base, Carbon Edition, Preferred, Premium, Select, Select Sport | 4 Cyl 2.5 L GAS
- CX-50 | 2023-2025 | 2.5 S, 2.5 Turbo, Hybrid Preferred, Hybrid Premium | 4 Cyl 2.5 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 2.5 L GAS
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Mazda Pinion Seal Part Number: FZ01-27-238
$8.81 MSRP: $11.75
You Save: $2.94 (26%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Seal, Oil
- Replaces: FZA1-27-238
Fits the following Mazda Models:
- 3 | 2019-2024 | 2.0, 2.5 S, Base, Carbon Edition, Preferred, Premium, Select, Select Sport | 4 Cyl 2.0 L GAS, 4 Cyl 2.5 L GAS
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Mazda Pinion Seal Part Number: CA01-27-165
$9.08 MSRP: $12.11
You Save: $3.03 (26%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Seal, Oil; Pinion Shaft Seal
Fits the following Mazda Models:
- 3 | 2019-2024 | 2.0, 2.5 Carbon Turbo, 2.5 S, 2.5 Turbo, 2.5 Turbo Premium Plus, Base, Carbon Edition, Preferred, Premium, Select, Select Sport | 4 Cyl 2.0 L GAS, 4 Cyl 2.5 L GAS
- CX-30 | 2020-2024 | 2.5 Carbon Turbo, 2.5 S, 2.5 S Carbon Edition, 2.5 Turbo, Base, Preferred, Premium, Select | 4 Cyl 2.5 L GAS
- CX-50 | 2023-2025 | 2.5 S, 2.5 Turbo, Hybrid Preferred, Hybrid Premium | 4 Cyl 2.5 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 2.5 L GAS
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Mazda Oil Seal Part Number: F401-17-131A
$12.15 MSRP: $16.20
You Save: $4.05 (25%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Seal, Oil
- Replaces: F401-17-131
Fits the following Mazda Models:
- MPV | 1989-1998 | Cargo, DX, ES, L, LX, LXE, Passenger | 4 Cyl 2.6 L GAS, 6 Cyl 3.0 L GAS
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Mazda Pinion Seal Part Number: T005-27-165A
$18.19 MSRP: $24.26
You Save: $6.07 (26%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Oil Seal
Fits the following Mazda Models:
- 323 | 1988-1991 | Base, DX, GT, GTX, LX, SE | 4 Cyl 1.6 L GAS
- Protege | 1990-1991 | 4WD, DX, LX, SE | 4 Cyl 1.8 L GAS

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1-20 of 26 Results

Mazda Differential Seal

The Mazda Differential Seal seals precious gear oil within the axle, enabling torque to split smoothly as well as shielding inner gears from dirt. Mazda cars are known for their responsive handling, Skyactiv engines that sip gas and the signature Kodo styling that makes every curve appear alive. Drivers also enjoy i-Activsense safety features, advanced all-wheel drive testing that tackles rough tracks, and emerging electric options that prove Mazda keeps thinking ahead. By combining efficiency with a grin-inducing sense of drive, Mazda creates vehicles that are light on their wheels and sturdy for long journeys, giving their owners confidence mile after mile. Alongside those brand strengths, the Differential Seal quietly holds the entire lineup. Made from resilient synthetic rubber and supported by a spring lip, a Mazda Differential Seal clings to the spinning flange to keep oil pressure, heat and splash contained. It fits any open or limited slip differential found in the company's cars or SUVs, leaving lubrication where it belongs and keeping out grit that could grind the gears. Since it is subject to constant rotation, in addition to temperature fluctuations, this small part maintains smooth cornering and silent acceleration throughout the drivetrain. When checked with routine service, a healthy Differential Seal allows every Mazda to continue delivering the balanced performance and reliability fans expect.

You'll get great performance and real durability when you pick genuine OEM Differential Seal. 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 Differential Seal Parts and Q&A

Output Shaft Seal
R004-27-238
Q: How to replace the differential seal on Mazda MX-5 Miata?
A:
Lift the back of the car and place it on jackstands so that it is secure and then take off the back wheels and the brake calipers. The second step is to take out the exhaust system rear half. Mark the driveshaft and companion flange to help in realigning the driveshaft during assembly, then remove the driveshaft. Take out the drain plug of the differential housing and then drain out the differential lubricant in a container; when fully drained, fit the drain plug. Position inch-pound torque wrench so that it contacts the pinion shaft nut and gradually turn the pinion shaft nut and take note of the amount of torque required to initiate the start of the pinion shaft turning. Indicate the position of the pinion nut and companion flange, and then grip the companion flange with some suitable tool and take out the pinion nut and be sure to keep the shaft still. Lift the companion flange (with the help of a puller, perhaps) and having observed the exposed side of the oil seal, now tediously peel it off the differential with a screwdriver or pry bar, careful not to scratch the splines on the pinion shaft. Wash the oil seal mounting surface and tap the new seal into position making sure that it fits in squarely. Check the splines on the pinion shaft and pinpoint any burrs and nicks and remove them using a crocus cloth and wiping off the splines. Install the companion flange, aligning it to its position when removed and rather lightly beating on it with a soft faced hammer till the pinion nut can be started on the pinion shaft. Withhold the companion flange and tighten the pinion nut to the lowest torque, and then continue tightening the pinion nut with small steps and measuring the preload with frequent rotation torque readings, so as not to drastically decrease the pinion bearing preload by backing off the pinion nut. Lastly, fit the driveshaft, brake calipers, and wheels, fill the differential with oil, drop the vehicle, and test drive to ensure that there are no leaks.
Seal
M054-27-165
Q: How Is the Rear Axle Pinion Bearing Preload Reset and the Differential Seal Replaced During Service on Mazda B2200?
A:
The service procedure includes careful resetting of the pinion bearing preload. The first step is to safely raise the vehicle and support it. Next, remove the wheels and brake drums. Mark the driveshaft and axle companion flange to ensure they are reinstalled correctly, then remove the driveshaft. Using a torque wrench, obtain the value of the torque required to maintain the pinion rotating through several revolutions. Using a suitable tool to hold the companion flange, remove the pinion nut. Mark the companion flange concerning the pinion shaft for later reinstallation. Make use of a suitable puller to pull off the rear axle companion flange and use a small prybar to pull out the seal from the carrier. When installing, ensure no burrs are present on the pinion shaft splines. Apply grease to the pinion seal lips and install using a seal installer. Check the sealing surface of the old companion flange for damage. If damaged, replace with new flange. Apply grease to the splines. Align the markings located on the flange and the pinion shaft at the time of assembly. Furthermore, do not hammer or power in the companion flange. Install a new nut on the pinion shaft while holding the companion flange tight. Tighten the nut on the pinion and rotate the pinion at least occasionally to ensure the bearings seat properly. Take the torque preload reading frequently until the original preload reading is achieved. The pinion nut should never be backed off to reduce preload. If a reduction is necessary, a new collapsible pinion spacer and nut shall be installed. To finish the job, put the driveshaft back in and check carrier fluid level before lowering vehicle.