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Etech Water Pump

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My water pump is leaking and I got to looking for one and didn't realize that Mack has 928 different part numbers for pumps that look exactly the same. The mack dealership wants well over $400 for a water pump and they are all over eBay and several other online sites for as low as 75 bucks but I can't find one with the exact numbers as mine yet they all look exactly like mine and I was wondering if anyone could clear up what will fit and what won't or what the difference actually is or maybe point out a good place to buy one. My pump says D.L.M. 360 GB52M it's a 2001 etech with the 10 rib Serpentine with the little v-belt behind it for the air conditioner. Last six 133939. Does anybody have some interchange numbers? Would love two by one of the pumps off eBay for less than 100 just want to make sure it fits. Thanks in advance for any and all help!

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Can't help you with #'s, but... Is it that easy to change your water pump that you don't mind risking using a cheapie ebay pump with the risk of it being cheap for a reason?      I'm not preaching buy mack I like to save $ when I can, but I don't think a water pump is the place to take the ebay gamble.        

Strictly my uneducated opinion.   

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TABLE OF CONTENTS

Mack Engine 2015  > E7 Series  > Water Pumps and Components
 
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Mack Engine 2015 Catalog
E7 (PLN), E-Tech (EUP) Section

Water Pumps and Components


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All OEM numbers are reference purposes only.
KEY PAI NO. EXCEL NO. OEM REF. DESCRIPTION REFERENCE INFO
1 EPH-8574   MAK771GB530AM HOUSING,Water Pump MAK 771GB530M
2 EGK-3846   MAK56AX107 GASKET MAK 56AX567
3 Call   MAK66AM2 SCREW (M12-1.75 x 30)  
4 Call   MAK66AM12 SCREW (M12-1.75 x 30)  
5 EGK-3826   MAK610GB233 GASKET (Steel Shim/Foamette)  
5 EGK-3852   MAK610GB216 GASKET  
6 040048   CUM4070462 SCREW (M8-1.25 x 16)(CL 9.8) MAK 421GC279M
6 ESC-0380   MAK64AM2 SCREW (M8-1.25 x 16)(CL 10.9)  
7 EGK-3847   MAK56AX392 GASKET  
8 EWP-3186   MAK316GC289A ASSEMBLY,Water Pump MAK 316GC570M3
8 EWP-3367 EM33670 MAK316GC284A ASSEMBLY,Water Pump MAK 316GC548AM
8 EWP-3369 EM33690 MAK316GC285B ASSEMBLY,Water Pump  
newitem.gif8 801135   MAK316GC3194 ASSEMBLY,Water Pump(Short Shaft)  
newitem.gif8 801137   MAK316GC3195 ASSEMBLY,Water Pump(Long Shaft)  
9 ERW-0745 EM07450 MAK379GC38 ROTOR (Stamped)  
newitem.gif9 801141   MAK379GC318 ROTOR(Stamped)(Used w/ 801135, 801137 Pumps)  
10 ESR-3372   MAK447GC224A SEAL (Use w/ ERW-0745 Rotor)  
11 ECW-3379   MAK360GB251AM HOUSING,Water Pump MAK 360GB52M
newitem.gif11 801151   MAK360GB54M HOUSING,Water Pump(Used w/ 801135, 801137 Pumps)  
12 ESH-3883   MAK469GC254M SHAFT (Used in EWP-3369 Assembly)  
12 ESH-3884   MAK469GC253M SHAFT (Used in EWP-3367 Assembly)  
13 ESL-3851   MAK518GC11 SLINGER  
14 EBG-3870   MAK46AX451 BEARING,Rear BCA 204F
15 ERS-8480   MAK446GC1108 O-RING  
16 ETS-0721   MAK550GC22P1 SPACER  
17 EBG-3860   MAK46AX497 BEARING,Front (For 2 Belt Pulley) 
  (Double Row)(2.047in OD)
BCA 5304F
18 ESR-2831   MAK325GC120 RING,Retaining  
newitem.gif18 ERI-2866   MAK325GC222 RING,Retaining(Used w/ 801135, 801137 Pumps)  
19 EPP-3574   MAK49AX233 PLUG,Pipe (3/8in)  
20 ENU-0405   MAK153AM1 NUT,Lock  
20 ENU-0407   MAK171AM5006 NUT (Use w/ ESH-3883 Shaft)  
21 EBF-6441   MAK541KB23 BREATHER NAV 110891H
22 EPK-3857   MAK57GC2123A KIT,Pump,Water 
  (Use for rebuilding EWP-3367 Assembly) Includes 
  Bearings (1)EBG-3860 (1)EBG-3870 
  Shaft (1)ESH-3884 Slinger (1)ESL-3851 
  O-Ring (1)ERS-8480 Ring (1)ESR-2831 
  Rotor (1)ERW-0745 Seal (1)ESR-3372 
  Nut (1)ENU-0405 Gasket Kit (1)EGK-3845
 
22 EPK-3858   MAK57GC2124A KIT,Pump,Water 
  (Use for rebuilding EWP-3369 Assembly) Includes 
  Bearings (1)EBG-3860 (1)EBG-3870 
  Shaft (1)ESH-3883 Rotor (1)ERW-0745 
  Slinger (1)ESL-3851 O-Ring (1)ERS-8480 
  Ring (1)ESR-2831 Gasket (1)EGK-3852
 
newitem.gif22 801155   MAK57GC2203A KIT,Water Pump 
  (Use for rebuilding Assembly EWP-3186) 
  Includes Shaft Assembly (1)801144 Rotor (1)801141 
  Seal (1)ESR-3372 Ring (1)ERI-2866 Gasket (1)EGK-3826
 
23 EWA-0392   MAK271AM5 WASHER,Flat,Hardened 
  (Use w/ ESH-3883 Shaft)
 
24 EWP-8678   MAK302GC3200M PULLEY (Cast)(3 Belt)  
25 EBT-8683   MAK87GB41A TENSIONER,Belt  
26 EGK-3845   MAK57GC182 KIT,Gasket Includes 
  Gaskets (1)EGK-3846 (1)EGK-3852 (1)EGK-3847
 
27 EPH-8578   MAK771GB4106M HOUSING,Water Pump 
  Includes Drain Valve
 
27 EPH-8579   MAK771GB535M HOUSING,Water Pump MAK 771GB4107M
28 EWP-8516   MAK302GC475M PULLEY(10 Groove)  
28 EWP-8517   MAK302GC4100M PULLEY (10 Groove)(6.617in OD)  
28 EWP-8518   MAK302GC4101M PULLEY (10 Groove)(5.392in OD)  
28 EWP-8519   MAK302GC4102M PULLEY (10 Groove)(6.125in OD)  
28 EWP-8663   MAK302GC43A PULLEY(2 Groove Drive and 1 Groove for A/C Compressor)  
28 EWP-8699   MAK302GC476M PULLEY (10 Groove)(E-Tech)  
29 ESP-1226   MAK537GC279 SPACER (Used w/ Screw 0366)  
30 ESC-0366   MAK66AM7 SCREW (M8-1.25 x 35) MAK 64AM10
31 840090   MAK63AX3695 FITTING,Connector MAK 63AX3458
32 ESP-3175   MAK537GC322M SPACER,Water Pump  
newitem.gif33 801127   MAK316GC548M ASSEMBLY,Water Pump 
  Includes Assembly (1)EWP-3367 Pulley (1)EWP-8678 
  Gasket kit (1)EGK-3845
MAK 316GC548AM
newitem.gif33 801128   MAK316GC548M4 ASSEMBLY,Water Pump 
  Includes Assembly (1)EWP-3367 Pulley (1)EWP-8663 
  Studs (6)EST-0414 Gasket kit (1)EGK-3845
 
newitem.gif33 801129   MAK316GC551M ASSEMBLY,Water Pump 
  Includes Assembly (1)EWP-3367 Pulley (1)EWP-8517 
  Gasket kit (1)EGK-3845
 
newitem.gif34 801143   MAK469GC326M ASSEMBLY,Short Shaft(Used w/ 801135 Water pump)  
newitem.gif34 801144   MAK469GC327M ASSEMBLY,Long Shaft(Used w/ 801137 Water pump)  
  ESR-2831   MAK4103-5010284531    
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10 hours ago, Hobert62 said:

Can't help you with #'s, but... Is it that easy to change your water pump that you don't mind risking using a cheapie ebay pump with the risk of it being cheap for a reason?      I'm not preaching buy mack I like to save $ when I can, but I don't think a water pump is the place to take the ebay gamble.        

Strictly my uneducated opinion.   

Yes, they are that easy to change. When you do it, change thermostat, water filter and belts too. Maybe have Horton clutch serviced if you have one. 

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22 hours ago, gumbiegumbie said:

My water pump is leaking and I got to looking for one and didn't realize that Mack has 928 different part numbers for pumps that look exactly the same. The mack dealership wants well over $400 for a water pump and they are all over eBay and several other online sites for as low as 75 bucks but I can't find one with the exact numbers as mine yet they all look exactly like mine and I was wondering if anyone could clear up what will fit and what won't or what the difference actually is or maybe point out a good place to buy one. My pump says D.L.M. 360 GB52M it's a 2001 etech with the 10 rib Serpentine with the little v-belt behind it for the air conditioner. Last six 133939. Does anybody have some interchange numbers? Would love two by one of the pumps off eBay for less than 100 just want to make sure it fits. Thanks in advance for any and all help!

Purchasing a genuine Mack brand factory "remanufactured" water pump, versus a "rebuilt" water pump online, is a prudent investment.

You could ship your core (old pump) to Watt's Mack (provider of the BMT website) with your truck's model and serial number (original engine?), and they can then ship you a Mack reman pump at the BMT price discount.

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