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Factory Brake Master Cylinder Cap, Nabco, 84-85, 86* 300ZX (Z31)
Supercedes to 24-5096.
Includes:
Description:
This is the genuine, original equipment (OEM) cap for the Nabco type brake master cylinder used on 1984 and 1985 models. Includes cap and sealing o-ring. *Note: Nissan previously superceded the 84-85 part to the 1986 number. Both parts have now been superceded to the 90-96 part number; see Related Items.
Supercessions:
This part number is “superceded”. Most of our supercessions originated with Nissan. A part made for a Z31, for instance, may actually be the same as the part made for the Z32, but it was given a different number. Nissan would then later supercede the number, so that if you ordered the part number for the Z32, what you would actually get is the original part number for the Z31 (or vice-versa), as they are the same part. Other times, supercessions can exist between different parts on the same car, as is often the case with hardware of the same size. These supercessions were Nissan decisions, where replacing the “superceded from” part with the “superceded to” part results in identical performance. The vast majority of them are simple numbering changes, where the parts are literally identical. In some cases, the two parts are identical in fit and function, but the finish is slightly different, or the non-critical overall dimensions are slightly different (like one starter housing being ¼” shorter than the other on the non-attached side). They do not affect the function of the part, and in many cases, the “superceded-to” part improves upon the “superceded-from” part.
Model Guide:
Nissan 300ZX
Model Restriction:
For models equipped with factory Nabco Brake Master Cylinder only. Will not fit factory Tokico Master Cylinders. Fitment on aftermarket master cylinders varies by brand.
Code Guide:
Nissan Z31
Year Guide:
1984, 1985, 1986*
Includes:
- (1) Brake Master Cylinder Cap
- (1) Brake Master Cylinder Cap O-Ring (Installed)
Description:
This is the genuine, original equipment (OEM) cap for the Nabco type brake master cylinder used on 1984 and 1985 models. Includes cap and sealing o-ring. *Note: Nissan previously superceded the 84-85 part to the 1986 number. Both parts have now been superceded to the 90-96 part number; see Related Items.
Supercessions:
This part number is “superceded”. Most of our supercessions originated with Nissan. A part made for a Z31, for instance, may actually be the same as the part made for the Z32, but it was given a different number. Nissan would then later supercede the number, so that if you ordered the part number for the Z32, what you would actually get is the original part number for the Z31 (or vice-versa), as they are the same part. Other times, supercessions can exist between different parts on the same car, as is often the case with hardware of the same size. These supercessions were Nissan decisions, where replacing the “superceded from” part with the “superceded to” part results in identical performance. The vast majority of them are simple numbering changes, where the parts are literally identical. In some cases, the two parts are identical in fit and function, but the finish is slightly different, or the non-critical overall dimensions are slightly different (like one starter housing being ¼” shorter than the other on the non-attached side). They do not affect the function of the part, and in many cases, the “superceded-to” part improves upon the “superceded-from” part.
Model Guide:
Nissan 300ZX
Model Restriction:
For models equipped with factory Nabco Brake Master Cylinder only. Will not fit factory Tokico Master Cylinders. Fitment on aftermarket master cylinders varies by brand.
Code Guide:
Nissan Z31
Year Guide:
1984, 1985, 1986*
Some parts may not fit every version of every year listed. See product Title & Description for any application breakdowns or customization options, and contact us with any questions.
- 1984 Nissan 300ZX-Z31
- 1985 Nissan 300ZX-Z31
- 1986 Nissan 300ZX-Z31


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