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#2664168 - 06/25/12 12:41 AM L14459, 3312 comparison w/pictures
grjr Offline


Registered: 09/07/11
Posts: 6
Loc: California
Sorry if this is a repost. I have had a Purolator L14459 and Bosch 3312 sitting around for quite a while and only recently noticed that they seem to be nearly identical. With them being so alike I think the purolator wins due to the far lower price than the bosch goes for. Here's the pictures I took. Comments, thoughts are welcome.

same size


both made in the USA, both have a stamp begining with "F05"


same o-ring


same plate and stampings, different valves?


internals of the bosch


internals of the bosch


though I couldn't get a good photo, the internals of the purolator are exactly the same
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1997 Integra GS 156K, Castrol GTX 5W-30, Bosch 3312

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#2664172 - 06/25/12 01:07 AM Re: L14459, 3312 comparison w/pictures [Re: grjr]
DemoFly Offline


Registered: 06/03/12
Posts: 969
Loc: Bremerton, WA
Purolator is jointly owned by Bosch and some other companies I don't remember.

I bet the only differences between those two filters is that the Bosch has a silicon ADBV and the purolator has rubber. I bet it's the same media.


Edited by DemoFly (06/25/12 01:08 AM)
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#2664174 - 06/25/12 01:13 AM Re: L14459, 3312 comparison w/pictures [Re: grjr]
stephen9666 Offline


Registered: 12/08/06
Posts: 3393
Loc: USA
Similar construction does not mean they have similar filtering media. I don't know the answer, but I would guess there's more differences than meets the eye.

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#2664178 - 06/25/12 01:27 AM Re: L14459, 3312 comparison w/pictures [Re: stephen9666]
grjr Offline


Registered: 09/07/11
Posts: 6
Loc: California
Originally Posted By: stephen9666
Similar construction does not mean they have similar filtering media. I don't know the answer, but I would guess there's more differences than meets the eye.


I know it's not well shown in the photo but from what I could see looking inside the filtering media appears to be the same. I'll have to cut them open eventually to be sure of course smile
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1997 Integra GS 156K, Castrol GTX 5W-30, Bosch 3312

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#2664194 - 06/25/12 02:39 AM Re: L14459, 3312 comparison w/pictures [Re: grjr]
ZeeOSix Offline


Registered: 07/22/10
Posts: 14351
Loc: PNW
Originally Posted By: grjr

both made in the USA, both have a stamp begining with "F05"


Those are the build date codes.

Bosch was built: 5/19/2011 on line D on 2nd shift.

Purolator was built: 5/7/2010 on line D on 1st shift.

I'd like to know how many media pleats and surface area each one has.

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#2664196 - 06/25/12 02:43 AM Re: L14459, 3312 comparison w/pictures [Re: grjr]
Texan4Life Offline


Registered: 01/28/10
Posts: 2264
Loc: Texas
Wasnt there a cut open comparison thread of bosch premium and P1? I wanna say bosch premium had media that was more like the P1 than the classic

great pics OP.


Edited by Texan4Life (06/25/12 02:44 AM)
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#2664198 - 06/25/12 03:05 AM Re: L14459, 3312 comparison w/pictures [Re: grjr]
ltslimjim Offline


Registered: 08/06/10
Posts: 5505
Loc: WatUpDoc
Yes, PL14459 is closer to a 3312. More like a clone than the classic compared to the Bosch Premium.
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#2664224 - 06/25/12 05:51 AM Re: L14459, 3312 comparison w/pictures [Re: grjr]
Sayjac Offline


Registered: 10/13/08
Posts: 11064
Loc: The Old North State
Same company, likely made in same plant in Fayetteville, NC. Classic is more of the value filter line, BP most likely a clone of the P1, at least that's what river_rat's filter testing indicates. Both here use the same coil spring bypass design, BP with silicone adbv, Classic nitrile.

BP indicated at 99.9% though vague about level, but likely same as P1. Classic 97.5% majority at 20um.

Price, Classic ~$3.27 at Wally, BP $6.99 at AZ and rarely if ever go on sale. Low priced Mann's now sold at RA likely a Classic clone.

Thanks for the pics.

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#2664491 - 06/25/12 11:50 AM Re: L14459, 3312 comparison w/pictures [Re: grjr]
Bottom_Feeder Offline


Registered: 12/07/08
Posts: 2568
Loc: Occupied Virginia
Agreed, nice pictures.

Yes, general consensus is that the Bosch Premium is a PureOne minus the silicone O-ring and grippy paint. Or you could say it's a Classic with PureOne media and silicone ADBV.

Either way, it's its own animal right between the two. It's also the best looking of the three if that's important to you...

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#2664509 - 06/25/12 12:29 PM Re: L14459, 3312 comparison w/pictures [Re: Sayjac]
ZeeOSix Offline


Registered: 07/22/10
Posts: 14351
Loc: PNW
Originally Posted By: sayjac
Same company, likely made in same plant in Fayetteville, NC.


Yep ... the "F" in the manufacturing code means "Fayetteville" per the decoder. grin

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#2664719 - 06/25/12 05:27 PM Re: L14459, 3312 comparison w/pictures [Re: Texan4Life]
Sayjac Offline


Registered: 10/13/08
Posts: 11064
Loc: The Old North State
Quote:
great pics OP.

+1 Yes excellent quality, very sharp. OT I know, but I'm curious what camera was used?

Also, thanks to ZO for his secret Purolator manufacturing decoder. wink2

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#2664749 - 06/25/12 05:57 PM Re: L14459, 3312 comparison w/pictures [Re: grjr]
Mr Nice Offline


Registered: 09/12/04
Posts: 18596
Loc: Orlando, FL
I use the older 24458 that's bigger than the 14459 on our Hondas.

I like Purolator for all my vehicles.
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#2664756 - 06/25/12 06:04 PM Re: L14459, 3312 comparison w/pictures [Re: Sayjac]
ZeeOSix Offline


Registered: 07/22/10
Posts: 14351
Loc: PNW
Originally Posted By: sayjac
Also, thanks to ZO for his secret Purolator manufacturing decoder. wink2


Still got your decoder? grin I didn't realize Bosch used the same manufacturing code, but since they are made right along side the Purolators it makes sense.

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#2664812 - 06/25/12 06:49 PM Re: L14459, 3312 comparison w/pictures [Re: ZeeOSix]
Sayjac Offline


Registered: 10/13/08
Posts: 11064
Loc: The Old North State
^^^^^I believe I have it saved somewhere, but I remembered that the year code was the toughest to decipher/decode. Letter standing for year, first year 09 corresponds to new P1 and Classic line year. Forgot about plant code. Also, didn't realize Bosch used the same codes.

At AAP today saw a small quantity of Mann's in the green and yellow box, they had the equivalents to the L14610, L14459, and a few others, $3.49. The ML10008 (L14610) can is now black instead of original white with stick-on label.

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#2664830 - 06/25/12 07:06 PM Re: L14459, 3312 comparison w/pictures [Re: grjr]
ZeeOSix Offline


Registered: 07/22/10
Posts: 14351
Loc: PNW
Here's the decoder in case anyone is interested. Let me know if the text is too small. It's a .jpg file ... guess I could resize it someday. laugh


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