HD9B 4-71 Oil Filter Cartridge
Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Construction and other equipment
Forum Description: everything else with orange (or yellow) paint
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=204128
Printed Date: 14 May 2025 at 6:00am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: HD9B 4-71 Oil Filter Cartridge
Posted By: JimCPaso
Subject: HD9B 4-71 Oil Filter Cartridge
Date Posted: 11 Nov 2024 at 11:39pm
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Hi all, I've been resurrecting our old HD9B and it's actually running very well, thankfully! I've been searching the web for a replacement oil filter cartridge with absolutely no luck. The existing (30 yr. old!) cartridge is about 6 in. long and 3 5/8 in. diameter. The outer housing has a label on it with AC markings as opposed to General Motors. The filters I've found for the 4-71 are substantially larger in length and diameter. By chance, would any of you know of a source for the stock HD9B oil filter cartridge? Many thanks in advance. Jim  |
Replies:
Posted By: DMiller
Date Posted: 12 Nov 2024 at 3:34am
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AC was at one time a division of GM, what number is present on that cartridge can? By one listing a WIX 51242 just under 6” long and 3 5/8” diameter should be it. Should be a spring and cup at bottom of housing that keeps the filter against the engine side filter head. |
Posted By: Mikez
Date Posted: 12 Nov 2024 at 7:14am
| Does anyone have the allis part number |
Posted By: PaulB
Date Posted: 12 Nov 2024 at 7:22am
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The WIX 51242 crosses to a Fleetguard LF587 which you should be able to get at any Heavy Duty truck parts place, or directly from Fleetguard. ------------- If it was fun to pull in LOW gear, I could have a John Deere. Real pullers don't have speed limits. If you can't make it GO... make it SHINY |
Posted By: JimCPaso
Date Posted: 13 Nov 2024 at 12:54am
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DMiller: The label on the outer housing was illegible. However, I didn't think of looking for markings on the cartridge itself. I'll do that over the weekend. Also, there's a spring and large flat washer inside the housing and on TOP of the filter cartridge. I didn't pull the cartridge out far enough to have a look underneath. More to come... Thanks to everyone for the very helpful feedback.
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Posted By: JimCPaso
Date Posted: 16 Nov 2024 at 11:40am
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OK. I pulled the existing filter and the PN (WIX 51005) was printed on it. I purchased the LF530 and will post a fitment update once it arrives. AC 079640 - Discontinued WIX 51005 - Discontinued Fleetguard LF530 - Available |
Posted By: bigcrunch
Date Posted: 24 Nov 2024 at 4:43pm
| LF530 is avail on Rockauto.com |
Posted By: HudCo
Date Posted: 25 Nov 2024 at 7:43pm
| napa 1226 |
Posted By: JimCPaso
Date Posted: 08 Dec 2024 at 10:22am
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Just wow! The Fleetguard LF530 was about 1/2 in. too short. The inner and outer diameters are correct, just the length is too short. Does anyone have the drawing for the original AC 079640? Or by chance, would anyone have an old, used AC 079640 that they could measure and share the length of? Thanks. Jim
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