REscobar Posted April 9, 2018 Share Posted April 9, 2018 Hi, been looking for some replacement pistons on a Mack B61 truck for my dad, and was looking for some help idenitifying the parts and where to get them, as far as I know the engine is diesel and 6 inline (673?), anyhow I tried looking for the numbers on the piston on the internet and no luck, the closest I got are finding the piston bushings wish I think are the ones we are looking for. Please any help would be appreciated https://www.ebay.com/itm/Sealed-Power-Piston-Pin-Bushing-for-MACK-END-673-WAUKESHA145GK-Engine-223-3488/282074279488?hash=item41acefee40:g:X90AAOSw-4BXaHT~&vxp=mtr Quote Link to comment https://www.bigmacktrucks.com/topic/53061-mack-b61-replacement-piston/ Share on other sites More sharing options...
j hancock Posted April 10, 2018 Share Posted April 10, 2018 Which engine do you have? On the timing gear cover in front of the injection pump will be a stamping. Would start with END or ENDT like END673, END673P, ENDT673,..... Quote JimIt doesn't cost anything to pay attention. Link to comment https://www.bigmacktrucks.com/topic/53061-mack-b61-replacement-piston/#findComment-396315 Share on other sites More sharing options...
REscobar Posted April 10, 2018 Author Share Posted April 10, 2018 Hi, I don't have it with me right now, will try to find out during the rest of the day, but just for my information, if it's a 6 inline it must be a 673 variant, right? Quote Link to comment https://www.bigmacktrucks.com/topic/53061-mack-b61-replacement-piston/#findComment-396323 Share on other sites More sharing options...
Freightrain Posted April 10, 2018 Share Posted April 10, 2018 Or 711 ci. If you can't find the marking on the front of the accy drive, then count head bolts and size(check the corners). They changed size/number later on. New parts are getting to be hens teeth. Quote Larry 1959 B61 Liv'n Large...................... Charter member of the "MACK PACK" Link to comment https://www.bigmacktrucks.com/topic/53061-mack-b61-replacement-piston/#findComment-396327 Share on other sites More sharing options...
REscobar Posted April 20, 2018 Author Share Posted April 20, 2018 Hi, sorry for the late response, I got sick and almost require emergency surgery, however I got this picture hoping that's the engine model, it reads: ENDL673P-620^H-39 Hopefully this is it Quote Link to comment https://www.bigmacktrucks.com/topic/53061-mack-b61-replacement-piston/#findComment-397195 Share on other sites More sharing options...
davehummell Posted April 20, 2018 Share Posted April 20, 2018 Call kevin All he will most likely have a used one in his collection of parts 1-607-434-1063 he is in ny. up by Albany. Quote Link to comment https://www.bigmacktrucks.com/topic/53061-mack-b61-replacement-piston/#findComment-397196 Share on other sites More sharing options...
j hancock Posted April 21, 2018 Share Posted April 21, 2018 Info from Federal Mogul. No listing on pistons. May help with finding something that will interchange for your application. The ENDL 673P share specs with these engines. EN-672, END-672, END-672S, END-673, END-673A, END-673B, END-673C, END-673D, END-673E, END-673P, ENDL-673, ENDL-673P, ENDS-672 Engs. 11.0L 672 OHV Diesel L6, 4.875" Bore 2 part numbers for bushings are listed. PART NO. DESCRIPTION Pin Bushing FP-187GB138 w/2" pin dia. Pin Bushing FP-1759V Con. rod No. 367GC-468F Quote JimIt doesn't cost anything to pay attention. Link to comment https://www.bigmacktrucks.com/topic/53061-mack-b61-replacement-piston/#findComment-397210 Share on other sites More sharing options...
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