Parts for your 2020 Mazda Cx-5-Oil seals

2020 Mazda CX-5 oil-seals — what they do and when to sort them

Oil-seals are absolutely used on the 2020 Mazda CX-5. Technical references such as the Mazda Workshop Manual for CX-5 (KF, 2017–2021) list front and rear crankshaft oil seals in the Engine Lubrication section, plus axle and output shaft oil seals in the Skyactiv-Drive automatic transmission and AWD transfer/differential sections. The Mazda Electronic Parts Catalogue for these models likewise shows serviceable crankshaft, camshaft (as applicable), and driveline oil-seals across Skyactiv-G 2.5 (including turbo) and Skyactiv-D 2.2 variants.

Because oil-seals are fitted to the 2020 CX-5, it’s worth knowing what they do and how to keep them in good nick. These small but critical seals keep engine oil, transmission fluid and diff oil where they belong, while keeping dust, road splash and grit out. On a CX-5 that includes the front crankshaft seal behind the crank pulley, the rear main seal between engine and gearbox, and various axle/output seals on the transaxle, transfer and diffs (AWD).

When they harden with age, heat and crankcase pressure, they can weep or leak, leaving spots under the car or an oily mist around the pulley or bellhousing. A tidy, leak-free CX-5 runs cooler, uses less oil, and avoids contaminating belts, clutches or rubber mounts.

There isn’t a set replacement interval for oil-seals