piston mix up

[doghunter9]

HI guys,

Got a 1984 evinrude super 65. needs pistons and rings.

On shop evinrude the piston #387284
the number stamp in the actual pistons is 433945, is this the piston number or just a common number that happens to match a brp piston #?

 

[doghunter9]

Re: piston mix up

roduct Details:

Part Number: 0433945
Description: PISTON & RING KIT
Pack Qty: 1
Dimensions: 4.00 x 4.00 x 4.00 (in)
Weight: 1.12 lbs
Equivalent Parts: 0437409,0437411,5006701


and

Product Details:

Part Number: 0387284
Description: PSTN&RNG KIT, STD
Pack Qty: 1
Dimensions: 4.00 x 4.00 x 4.00 (in)
Weight: 1.67 lbs
Equivalent Parts: 5006751


What is the diff? As i said the current pistons are stamp 433945 up the evinrude site calls for 387284

 

[tx1961whaler]

Re: piston mix up

Beats me. Maybe the kit has a different part number because it is listed as a kit (Piston+Rings), rather than just the piston alone?
Hopefully someone with an original parts list will chime in and clear it up.

 

[doghunter9]

Re: piston mix up

Beats me. Maybe the kit has a different part number because it is listed as a kit (Piston+Rings), rather than just the piston alone?
Hopefully someone with an original parts list will chime in and clear it up.

Do you think that someone had rebiult this be for a used the 433945 pistons as they have the same dimentions only different weights?

Should I go back to the stoke parts or stick with these pistons.