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07-12-2015, 11:47 PM #1
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Generic o-ring sizes for impeller stub shaft spacer collar?
What are the generic o-ring sizes for 5410817 and 5410818 ?
These are the small o-rings that fit on the front of the stub shaft in the jet pump.Last edited by K447; 07-14-2015 at 08:35 AM.
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07-13-2015, 10:52 PM #2
Thanks. Now, back to the original question
What are the generic o-ring sizes for 5410817 and 5410818 ?
These are the small o-rings that fit on the front of the stub shaft in the jet pump.
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07-14-2015, 08:33 AM #3
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07-14-2015, 08:36 AM #4
Give me the ID OD and width and ill look it up
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07-14-2015, 09:04 AM #5
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Should get stickied IMO...I was never able to find aftermarkets for these.
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07-14-2015, 09:12 AM #6
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07-14-2015, 10:43 AM #7
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O-rings must fit inside the impeller spacer sleeve ID 0.79" (20mm)
Stub shaft measurements
5410818 (fits in groove)
0.662" ID (42.3 64ths) 16.8mm
0.78 OD shaft
.095 groove width 2.4mm
5410817 (fits on shoulder of stub shaft, also inside the .79" spacer)
0.66" ID
Laying side by side this used o-ring appears slightly smaller than the 5410818, but I do not have a pair of un-used to compare.
While we are at it, generic size for the Skat-Trak impeller nose to drive shaft o-ring?
Polaris OEM Impeller to driveshaft seal, my guess is AS568 size -312 ?
5/8" ID
1.0" OD
3/16" thick
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07-14-2015, 11:43 AM #8
K can you give me the actual O ring dimensions? Sometimes its hard to go by groove dimensions as some do not follow the recommended dimensions.
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07-14-2015, 11:56 AM #9
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The only o-rings I have here are worn and squashed out of shape. That is part of the problem.
I will be picking up some new Polaris OEM o-rings later today. Will try to measure those tonight.
Edit: Well, the dealer parts counter assured me these were genuine Polaris OEM o-rings. Packaging looks a tad generic
Last edited by K447; 07-14-2015 at 11:40 PM.
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07-14-2015, 11:12 PM #10
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O-rings 5410817, 5410818 measured dimensions
O-ring 5410818
0.68" ID
.065" thick
~0.81" OD
My guess, 5410818 o-ring is standard US size
-017
11/16 ID 13/16 OD 1/16 thick
ID .676 ± .009
Thickness .070 ± .003
O-ring 5410817
0.56" ID
.065" thick
~0.68" OD
My guess, 5410817 o-ring is standard US size
-015
9/16 ID 11/16 OD 1/16 thick
ID .551 ± .007
Thickness .070 ± .003
Despite the '817 o-ring having a much smaller relaxed ID, it gets stretched when installed, resulting in the in position OD of the 'smaller' o-ring being only a fraction less than the installed OD of the larger '818 o-ring.
The '818 o-ring has slightly loose fit in the machine groove, the impeller spacer collar then squeezes the larger o-ring inwards slightly for a friction fit. There is less friction where the color slides over the slightly smaller 'stretched' '817 o-ring.
Last edited by K447; 07-14-2015 at 11:36 PM.
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