Total Excavation Posted May 30, 2019 Share Posted May 30, 2019 Hi Would someone please direct me to a supplier other than a Mack dealer for the following part numbers. 21010850. Exhaust manifold 21010782. Exhaust manifold 20901575. Stud 370SB24A. Kit? I have a worn out exhaust manifold on my ‘05 CV-713. Trying to fix it with all new parts, but the dealer’s prices are outrageous. Thanks in advance Bruce Quote Link to comment https://www.bigmacktrucks.com/topic/57436-need-source-for-aftermarket-exhaust-manifold/ Share on other sites More sharing options...
Mack Technician Posted May 30, 2019 Share Posted May 30, 2019 (edited) You need to go to PAI industries. They supply aftermarket for Mack. You can phone order from any PAI dealership. If I can make a suggestion against stock (click on attached thread for other parts including exhaust manifold on page 5). You need these for your truck....... Ends are 21090679 (104GC5164M-old number) $284.06, of which you need 2. Center is a 21090730, $203.99 (Both 104GC5165M3 (high temp center) and 104GC5165M (regular application) supersede to same number.... 21090730). Edited May 30, 2019 by Mack Technician 1 Quote Link to comment https://www.bigmacktrucks.com/topic/57436-need-source-for-aftermarket-exhaust-manifold/#findComment-424007 Share on other sites More sharing options...
steeler Posted May 31, 2019 Share Posted May 31, 2019 Not to derail this thread, but would a guy gain anything by just changing the manifold only? Quote Link to comment https://www.bigmacktrucks.com/topic/57436-need-source-for-aftermarket-exhaust-manifold/#findComment-424031 Share on other sites More sharing options...
Mack Technician Posted May 31, 2019 Share Posted May 31, 2019 8 hours ago, steeler said: Not to derail this thread, but would a guy gain anything by just changing the manifold only? Mackvette gained a little snap, but lost 2 PSI top boost by installing the larger manifold and S400 turbo (with no injector swap). Once he swapped injectors it performed above the line. I’d wager manifold only will maintain with a possible slight rise in boost and EGTemp. It would set the stage for a future upgrade. 2 Quote Link to comment https://www.bigmacktrucks.com/topic/57436-need-source-for-aftermarket-exhaust-manifold/#findComment-424046 Share on other sites More sharing options...
R.E.D Posted June 1, 2019 Share Posted June 1, 2019 On 5/30/2019 at 8:46 PM, steeler said: Not to derail this thread, but would a guy gain anything by just changing the manifold only? Changing over to a better flowing manifold reduces back pressure which increases engine performance and longevity. 2 Quote Link to comment https://www.bigmacktrucks.com/topic/57436-need-source-for-aftermarket-exhaust-manifold/#findComment-424125 Share on other sites More sharing options...
ssbigdog Posted September 30, 2022 Share Posted September 30, 2022 On 5/30/2019 at 6:18 PM, Mack Technician said: You need to go to PAI industries. They supply aftermarket for Mack. You can phone order from any PAI dealership. If I can make a suggestion against stock (click on attached thread for other parts including exhaust manifold on page 5). You need these for your truck....... Ends are 21090679 (104GC5164M-old number) $284.06, of which you need 2. Center is a 21090730, $203.99 (Both 104GC5165M3 (high temp center) and 104GC5165M (regular application) supersede to same number.... 21090730). Are you saying that the 21010850 is replaced with a 21090679? Quote Link to comment https://www.bigmacktrucks.com/topic/57436-need-source-for-aftermarket-exhaust-manifold/#findComment-510662 Share on other sites More sharing options...
Onyx610 Posted September 30, 2022 Share Posted September 30, 2022 You won’t be getting a response from Mack Technician…unfortunately. 2 Quote Link to comment https://www.bigmacktrucks.com/topic/57436-need-source-for-aftermarket-exhaust-manifold/#findComment-510667 Share on other sites More sharing options...
steeler Posted October 8, 2022 Share Posted October 8, 2022 On 9/30/2022 at 4:48 PM, Onyx610 said: You won’t be getting a response from Mack Technician…unfortunately. What happened to MT? Quote Link to comment https://www.bigmacktrucks.com/topic/57436-need-source-for-aftermarket-exhaust-manifold/#findComment-511354 Share on other sites More sharing options...
Onyx610 Posted October 8, 2022 Share Posted October 8, 2022 25 minutes ago, steeler said: What happened to MT? I know he’s no longer on here, I’ve always wondered what happened to him myself. Someone on here has to know…? Quote Link to comment https://www.bigmacktrucks.com/topic/57436-need-source-for-aftermarket-exhaust-manifold/#findComment-511355 Share on other sites More sharing options...
tjc transport Posted October 9, 2022 Share Posted October 9, 2022 mack technician could not play with others in a civil way, and was part of the dozen or so other users that were given vacations and never returned. 1 1 Quote when you are up to your armpits in alligators, it is hard to remember you only came in to drain the swamp.. Link to comment https://www.bigmacktrucks.com/topic/57436-need-source-for-aftermarket-exhaust-manifold/#findComment-511371 Share on other sites More sharing options...
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