WARNING: Cancer and Reproductive Harm -
Your shopping cart is currently empty. Need help finding the right part? Just contact us!
Factory Freeze Plug, Cylinder Head, 2/87-89 300ZX
Part #:10-4622
Price: $2.39
See Description.
Supercedes to 10-4621.
Description:
If you have found evidence of corrosion anywhere in your cooling system, such as debris in your radiator, corroded sensors inside your thermostat housing, or even a rotted thermostat housing, chances are this freeze plug has begun to rust from inside of the cylinder head as well (along with the plugs in the engine block). Freeze Plugs are an often overlooked item that can lead to coolant leaks if left alone for too long. Freeze plug leaks will usually start as a coolant leak that comes and goes, then eventually turns into a steady leak if given enough time. These leaks will usually start as a pinhole leak from around the center of the plug instead of a leak around the edges. This is the genuine, original equipment (OEM) replacement plug.
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This part number is 'superceded'.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 These supercessions were Nissan decisions, where replacing the 'superceded from' part with the 'superceded to' part results in identical performance.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 '' 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 They do not affect the function of the part, and in many cases, the 'superceded-to' part improves upon the 'superceded-from' part.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
Code Guide:
Nissan Z31
Year Guide:
1987, 1988, 1989
Description:
If you have found evidence of corrosion anywhere in your cooling system, such as debris in your radiator, corroded sensors inside your thermostat housing, or even a rotted thermostat housing, chances are this freeze plug has begun to rust from inside of the cylinder head as well (along with the plugs in the engine block). Freeze Plugs are an often overlooked item that can lead to coolant leaks if left alone for too long. Freeze plug leaks will usually start as a coolant leak that comes and goes, then eventually turns into a steady leak if given enough time. These leaks will usually start as a pinhole leak from around the center of the plug instead of a leak around the edges. This is the genuine, original equipment (OEM) replacement plug.
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 '' 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
Code Guide:
Nissan Z31
Year Guide:
1987, 1988, 1989
Related Items
1 Total Related Items
-
Price: $2.6310-4621
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.
- 1987 Nissan 300ZX-Z31
- 1988 Nissan 300ZX-Z31
- 1989 Nissan 300ZX-Z31