Service Parts. General Motors 3.0 L Powertrain EPA Certified Engines. Engine. Engine Model: Generator Models: 25/30REZG TP /10

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1 Service Parts Engine Engine Model: General Motors 3.0 L Powertrain EPA Certified Engines Generator Models: 25/30REZG TP /0

2 Table of Contents Description Page Introduction... 3 Number System Significance... 3 Illustrations... 3 How to Find Part Numbers... 3 Hardware References : Starter : Fan Spacer : Flywheel Adapter : Flywheel/Housing : Exhaust/Intake Manifold : Electrical : Fuel System : Dress Kit : Alternator : Engine Block/Lower End : Engine Head/Upper End... 6

3 This manual lists service replacement parts for General Motors 3.0L engines. Information in this publication represents data available at the time of print. Kohler Co. reserves the right to change this publication and the products represented without notice and without any obligation or liability whatsoever. This manual includes the following main sections: Table of Contents. Lists the sections of the manual. Introduction (and other information sections). Contains introductory material about part numbers, illustrations, and hardware. Group Parts Lists. List the part numbers of parts in the groups. Numbering System Significance This manual uses the following numbering systems: Group Number. A unique number representing a parts group needed to assemble a generator set function. For example, Group is the Cylinder Head group. Part Number. The part number identifies an individual assembly, subassembly, component, or accessory kit. Illustrations Illustrations (or exploded-view drawings) best representing the widest range of variations accompany most groups in this manual. Illustrations do not depict all details and may not show all parts. Do not substitute illustrations for assembly or disassembly. Introduction How to Find Part Numbers Use the following steps to locate a service replacement part.. Identify the group most likely to include the service part number. 2. Page forward to locate the group identified in step or find the appropriate page in the Table of Contents. 3. Find the part on the illustration and note the item number of the part or find the part description in the parts list. TP /0 3

4 -2: Starter Item Part No. Description Qty. GM678 Starter 2 GM690 Bolt, starter 2 4 TP /0

5 -3: Fan Spacer 2 3 Items not shown: Item Part No. Description Qty. GM7523 Spacer, Fan Lightweight 2 GM6733 Washer 4 3 # Bolt, 5/6-24 x 5 HxHD Gr5 4 4 GM7595 Washer,Flat5/6SAE 6 # Common hardware; procure locally. TP /0 5

6 -5: Flywheel Adapter Item Part No. Description Qty. GM755 Adapter 2 # Bolt, 3/8-6 x 2 Skt Hd Gr8 4 # Common hardware; procure locally. 6 TP /0

7 -6: Flywheel/Housing Items not shown: 5, Item Part No. Description Qty. GM756 Housing, SAE3 2 GM754 Plate, Cover F/W 3 GM7596 Bolt, 3/8-6 x /4 SktHd Gr5 4 3 GM7599 Bolt, 3/8-6 x 2 /4 SktHd 2 4 GM689 Plate, starter 5 # Bolt,5/8-8xHxHdZinc 6 # Bolt, /4-20x3/8 Flange Hd Ser 8 # Common hardware; procure locally. TP /0 7

8 -7: Exhaust/Intake Manifold Items not shown: 7, 8, 9, 20, Item Part No. Description Qty. GM6957 Bolt, 5/6-8 x 3/4 skt hd, gr GM7595 Washer,Flat5/6SAE 6 3 GM7574 Manifold, Intake Upper /2 4 GM7575 Gasket, Manifold 2 5 GM42579 Hose, fuel 3/8 in. 6 GM38928 Fitting, intake manifold vac 7 GM39442 Gasket, intake manifold 8 GM7577 Intake Manifold, Lower /2 9 GM7520 Bolt, 3/8-6 x Skt Hd Gr GM75205 Washer, Belleville 3/8 8 GM75200 Stud, 3/8-6x 3/8 All Thread 2 2 GM25974 Nut, 3/ GM7576 Exhaust Manifold, Rear Outlet 4 GM28932 Gasket, exhaust 5 # Bolt, 3/8-6 x /4 HxHd Gr GM758 Elbow, Exhaust w/flange 7 GM38939 Fitting, 3/8 MPT Plug, Hex 8 GM7530 Heat Shield 9 GM60356 Plug, Y-pipe exhaust 9 GM67304 Oxygen Sensor Plug 20 # Washer,Flat 3/8 Hardened Grl9 2 2 # Bolt, /4-20x/2 Flange Hd Ser 5 # Common hardware; procure locally. 8 TP /0

9 -: Electrical Items not shown: 7, 8, 9, 0,, 2, 3, 4, 5, Item Part No. Description Qty. GM72292 Sensor, O2 2 GM7545 Bracket, Lifting Eye 3 GM7537 Harness, Stationary, IEPR 4 GM29604 Isolator, relay box 2 5 GM72303 Sender, oil pressure 6 GM29608 Sensor, coolant 7 GM752 Fitting, Oil Pressure 8 GM7503 Nut, Flange /4-20 Serrated 2 9 GM29582 Plug, brass /8 in. NPT 0 GM39455 Clamp, 7/8 steel tube GM25974 Nut, 3/ # Plug, /2 NPT, Steel 2 3 # Washer, Star 3/8 4 # Bolt, /4-20x/2 Flange Hd Ser 2 5 # Bolt, 3/8-6x5/8 Flange Hd Ser 6 # Bolt, M0-.50 X 5 Flg Hd Ser # Common hardware; procure locally. TP /0 9

10 -3: Fuel System Items not shown: 3, 8, 9, 3, 4, 7, 8, 9, 20, 2, 22, 23, 24, 25, 26, 27, Item Part No. Description Qty. GM39222 Throttle body, Bosch 40 mm 2 GM28360 Gasket, TB 3 GM7527 O-ring, -34 Buna-N, UL, 40mm 4 GM754 Mixer 5 GM7523 I-EPR 5 GM72583 I-EPR, Dual Fuel 6 GM69508 Adapter, EPR, 3/4 NPT 7 GM7540 Adapter, E00 Mixer to Bosch40 8 GM42579 Hose, fuel 3/8 in. 9 GM7562 Seal, Quad -34 Buna-N, UL 2 40mm 0 GM39227 Sensor, T-Map GM7592 Bolt, M6-.0x25 SktHd 4 2 GM28896 Valve, PCV 3 GM75 Elbow, Vent (Valve Cover) 4 GM3946 Grommet, 3.0L valve cover 5 GM75206 Bolt, M6 X.0 x 85mm SKT HD 4 6 GM69524 Bolt,M4x.70x6shthd 4 7 GM69488 Clamp, hose 3/8 (spring type) 2 8 GM753 Clamp, Hose 7/8 OD 9 GM69490 Adapter, barb 5/8 to 3/8 nylon 20 GM69492 Tube, ID x 3 in. 2 GM7558 Nipple, Ext Oil Press Switch 22 GM28963 Washer, lock M # Bolt /4-20x5/8 Flange Hd Ser 24 GM7529 Grommet 25 GM755 Screw, Tabulated M4 X GM72323 Stud, M5-.80 x GM72324 Nut, M5-.80 flange 4 28 GM69487 Fitting, /8 NPT x 3/8 90 deg. Elbow nylon # Common hardware; procure locally. 0 TP /0

11 -4: Dress Kit Items not shown: 8, 9, 0,, 2, Item Part No. Description Qty. GM38996 Outlet, water 2 GM6537 Thermostat, engine cooling 3 GM6536 Gasket, water outlet 4 GM75208 Pulley 5 GM6703 Filter, oil 6 GM227 Spark plug 4 7 GM753 Lifting Eye, Rear 8 GM66 Adapter, freeze plug /2 NPT 2 9 GM68 Plug, /2 NPT brass 2 0 # Bolt, 5/6-24 x 3/4 Hx Hd Grd5 4 # Washer,Flat 5/6 Hardened Grl9 4 2 # Bolt, 3/8-6x Flange Hd Ser 3 GM75220 Oil Pressure Fitting # Common hardware; procure locally. TP /0

12 -5: Alternator 5 2 Items not shown: 6, 7, 8, 9, 0,, 2, 3, 4, 5, Item Part No. Description Qty. GM39425 Strap, alternator 2 GM39426 Alternator, 7SI 3 GM7524 Bracket, Alternator 4 GM39427 Sleeve, alternator (spacer) 5 GM752 Belt, Alternator 6 GM23738 Bolt, head head, M8-.25 x 30 7 GM7594 Washer,Flat5/6USS 8 GM6733 Washer 2 9 # Bolt, 5/6-8 x Hx Hd Grde 5 0 # Bolt,3/8-6xHxHdGrade5 2 # Bolt, 3/8-6 x /4 HxHd Gr 5 2 GM6956 Washer, 3/8 4 3 GM2490 Washer,flat3/8SAE 2 4 # Nut, 3/8-24 Flange Serrated 5 # Bolt,3/8-24x4HxHdGrade5 6 # Washer,Flat 3/8 Hardened Grl9 2 # Common hardware; procure locally. 2 TP /0

13 Notes TP /0 3

14 2 -: Engine Block/Lower End 6742_ 4 TP /0

15 2 -: Engine Block/Lower End Item Part No. Description Qty. Item Part No. Description Qty. GM38999 Ring kit, piston (standard) 4 2 GM75270 Piston (w/pin), Std 4 3 GM6363 Rod, connecting 4 4 GM6546 Bolt, connecting rod 8 5 GM75049 Bearing Kit, Conn Rod Std 4 5 GM38977 Bearing kit, conn rod.00 US Not Applicable 7 GM6586 Nut, connecting rod 8 8 GM38892 Bearing, oil pump drive shaft 9 GM7505 Gasket, Water Pump 0 - NSS. See 5 - NSS. See NSS. See 5 3 GM7505 Cap, Heater Water Outlet 4 GM75000 Clamp (/6 to 5/6 ) 5 GM75225 Water Pump (includes gasket) 6 GM7502 Bolt, Water Pump 7 - NSS. Part of Not Applicable 9 GM660 Bolt, water pump cover 3 20 GM750 Bolt, Water Pump 2 2 GM6539 Key, crankshaft balancer Not Applicable 23 - Not Applicable 24 GM38908 Gear, camshaft 25 GM38978 Plate kit, camshaft 26 - Not Applicable 27 GM38982 Bearing, camshaft 3 28 GM75002 Camshaft (Incl. 2, 26) 29 GM9023 Valve, oil filter bypass 30 GM6547 Pin, cylinder head locator 8 3 GM8892 Fitting, oil filter 32 GM38968 Bearing kit, crankshaft 4 (#, 2, 3, 4, standard) 32 GM38969 Bearing kit, crankshaft 4 (#, 2, 3, 4,.00 US) 32 GM38967 Bearing kit, crankshaft (#5, standard) 32 GM38945 Bearing kit, crankshaft (#5,.00 US) 33 GM6539 Key, crankshaft balancer 34 GM38955 Seal, Front Crankshaft Oil (Timing Gear Cover) 35 GM38905 Gear, crankshaft 36 GM75099 Gasket, Front Cover 37 GM38930 Cover, engine front 37 GM38974 Sealer, Engine Front Cover AR 38 - NSS-Partof NSS-Partof NSS-Partof4 4 GM75004 Balancer, Crankshaft 42 - Not Applicable 43 - Not Applicable 44 - Not Applicable 45 GM38973 Nut, oil pan AR 46 - Not Applicable 47 GM660 Bolt, water pump cover AR 48 GM38926 Plug, oil pan drain 49 GM38988 Gasket, oil pan drain 50 GM39003 Pan, oil 5 GM6528 Bolt, valve lifter guide retainer NSS-Partof NSS-Partof NSS-Partof NSS-Partof NSS-Partof NSS-Partof NSS-Partof63 59 GM6594 Bolt, camshaft sprocket NSS-Partof37 6 GM750 Gasket, Oil Pan 62 GM6595 Bolt, sprk plg wire retainer brckt 6 63 GM38989 Pump, oil 64 GM38924 Nozzle 65 GM38927 Bracket, oil pump screen 66 GM7526 Crankshaft, Engine 67 GM38938 Bolt, oil pmp scrn brckt AR 68 - Not Applicable 69 - Not Applicable 70 - Not Applicable 7 GM38909 Screen, oil pump 72 GM38923 Bolt, crankshaft bearing cap Cap, Crankshaft Bearing - NSS 74 GM6599 Pin, crankshft rr oil seal locator 75 GM38985 Housing, crankshaft rear oil seal 76 GM38994 Bolt, crankshaft rear oil seal hsg AR 77 GM38993 Bolt, crankshaft rear oil seal hsg AR 78 GM3898 Gasket, crkshft rear oil seal hsg 79 - Not Applicable 80 GM6502 Stud, crnkshft rr oil seal retainer 2 8 GM38946 Seal, crankshaft rear oil 82 GM75008 Ring Gear, Flywheel - Part of GM74995 Washer, Flywheel 6 84 GM38896 Bolt, flywheel 6 85 GM3897 Bolt, valve push rod cover Not Applicable 87 GM39002 Flywheel 88 GM39007 Cover, valve push rod 89 GM38899 Pin 2 90 GM75048 Sealer, Valve Push Rod Cover AR 9 GM650 Plug, 3/8-8 x GM74970 Engine, 3.0L (8 CID) 93 GM6397 Plug, camshaft rear bearing hole AR 94 GM3899 Plug, engine block core hole AR 95 - Not Applicable 96 GM38922 Plug, engine block oil galley 97 GM75260 Tube, Oil Level Indicator w/bracket 98 GM75094 Indicator, Oil Level 99 - Not Applicable 00 GM38976 Sealer, valve push rod cover AR 0 GM38893 Stud, valve push rod cover 02 GM38895 Nut, valve push rod cover 03 GM38903 Washer, valve push rod cover 3 07 GM75064 Sensor, Cr/Shf Posn 07 GM75040 Bolt, Cr/Shf Posn Sen 0 GM75273 Gasket, fuel pump GM75262 Cover, fuel pump 2 GM6575 Washer, camshaft sprocket 3 3 GM6594 Bolt, camshaft sprocket 3 NSS: Not Serviced Separately. TP /0 5

16 2-2: Engine Head/Upper End 6742_2 6 TP /0

17 2-2: Engine Head/Upper End Item Part No. Description Qty. Item Part No. Description Qty. GM7506 Cap, Oil Fill 2 GM6595 Bolt, spark plg wire retainer brkt 6 3 GM38925 Reinforcement, vlv rckr arm cvr AR 4 GM38907 Cover, valve rocker arm 5 GM75098 Gasket, valve rocker arm cover AR 6 GM38936 Bolt Outlet, water (See Group -4) 8 - Thermostat, engine cooling (See Group -4) 9 - Gasket, water outlet (See Group -4) 0 GM75269 Housing, eng cooling tstat GM38936 Bolt 3 2 GM38952 Bolt, cylinder head AR 3 GM38920 Plug, cylinder head core hole Nut (See Group -7) Stud (See Group -7) Washer (See Group -7) AR 7 - Bolt, exhaust manifold 3 (See Group -7) 8 - Stud, intake man to cyl. head (See Group -7) 9 - Bolt, intake manifold AR (See Group -7) 20 - Manifold, intake (See Group -7) 2 - Fitting, intke manifold vacuum (See Group -7) 22 - Not Applicable 23 - Not Applicable 24 - Gasket, exhaust manifold (See Group -7) 25 - Not Applicable 26 - Not Applicable 27 - Manifold, exhaust (See Group -7) 28 - Stud, exhaust pipe 2 (See Group -7) 29 - Clamp, int/exh manifold 4 (See Group -7) 30 - Gasket, intake manifold (See Group -7) 3 GM7507 Gasket, engine cooling tstat 32 GM6585 Plug, engine block core hole AR 33 GM6407 Bolt, distributor cap 2 34 GM38963 Cap, distributor 35 GM38956 Rotor, distributor 36 GM38957 Shaft, distributor 37 GM38965 Retainer, dist ignition pick up coil 38 GM38964 Seal, dist housing oil (o-ring) 39 - Not Applicable 40 GM6543 Pin, distributor ignition pick up lock-partof5 4 GM648 Module, dist ignition control 42 GM6406 Bolt, distributor 2 43 GM38962 Pole piece, distributor pick up 44 GM643 Coil, distributor pickup 45 GM38959 Gear, distributor shaft 46 GM38935 Pin, distributor gear 47 GM38995 Gasket, cylinder head 48 - Spark plug (See Group -4) 4 49 GM75268 Valve, exhaust NSS-Partof68 5 GM75267 Valve, Intake 4 52 GM38934 Bracket, engine lift front 53 GM38942 Bolt, engine lift front bracket 8 54 GM38897 Distributor 55 GM38949 Gasket, distributor 56 GM3893 Washer, distributor 57 - Not Applicable 58 GM38894 Clamp, distributor 59 GM6425 Wire, ignition coil 60 GM38936 Bolt 3 6 GM6597 Bolt, ignition coil Not Applicable 63 GM7500 Retainer, spark plug wire AR 64 GM38898 Coil, ignition 65 GM390 Wire, ignition coil 66 GM75259 Harness, spark plug wire 67 GM3893 Lifter, valve 8 68 GM3900 Rod, valve push 8 69 GM3898 Stud, vlv rocker arm ball 8 (.003 in. OS) 69 GM6584 Stud, valve rocker arm ball 8 70 GM38953 Seal, valve stem oil (o-ring type) 8 7 GM75266 Head, cylinder 72 GM75096 Spring, valve 8 72 GM75274 Spring, valve 8 (ident. white stripe) 73 GM38944 Cap, valve spring 8 74 GM6342 Shield, valve stem oil 2 75 GM38932 Arm kit, valve rocker (w/ball) 8 76 GM39009 Ball, valve rocker arm 8 77 GM6493 Nut, valve rocker arm 8 78 GM6529 Key, valve stem 6 79 GM650 Rotator, valve Not Applicable 8 - Not Applicable 82 - Not Applicable 83 - Not Applicable 84 - Not Applicable 85 - Not Applicable 86 - Not Applicable 87 GM38893 Stud, valve push rod cover 88 GM38895 Nut, valve push rod cover 96 GM75092 Cap, PCV tube 08 GM7504 Sensor, engine coolant temp NSS: Not Serviced Separately. TP /0 7

20 TP /0 200 by Kohler Co. All rights reserved. KOHLER CO. Kohler, Wisconsin Phone , Fax For the nearest sales and service outlet in the US and Canada, phone KohlerPower.com Kohler Power Systems Asia Pacific Headquarters 7 Jurong Pier Road Singapore 6959 Phone (65) , Fax (65)

Service Parts. General Motors 4.3 L Powertrain EPA Certified Engines. Engine. Engine Model: Generator Models: 38RCL 40/45REZG 40/45ERES.

Service Parts. General Motors 4.3 L Powertrain EPA Certified Engines. Engine. Engine Model: Generator Models: 38RCL 40/45REZG 40/45ERES. Service Parts Engine Engine Model: General Motors 4.3 L Powertrain EPA Certified Engines Generator Models: 38RCL 40/45REZG 40/45ERES TP-6730 7/b Table of Contents Description Page Introduction... 3 Number