Kohler 9EOZD, 8.5EFOZD, 10EOZD, 7EFOZD, 9EFOZD User Manual
Service Parts
Marine Generator Sets
Models:
7EFOZD/9EOZD
8.5EFOZD/10EOZD
9EFOZD/10EOZD
TP-6270 11/06c
Table of Contents
Description Page
Introduction 3.......................................................
Numbering System Significance 3.....................................
Illustrations 3.......................................................
How to Find Part Numbers 3..........................................
Hardware References 3..............................................
Specification Number Index 4.........................................
Group 1: Cylinder Block 5............................................
Group 2: Gear Housing 7............................................
Group 3: Mounting Flange and Oil Sump 10.............................
Group 4: Cylinder Head 12...........................................
Group 5: Intake Manifold 16..........................................
Group 6: Camshaft and Drive Gear 17.................................
Group 7: Crankshaft and Piston 19....................................
Group 8: Lubrication Oil System 21....................................
Group 9: Cooling Water System 23....................................
Group 10: Fuel Injection Pump 25.....................................
Group 12: Fuel Injection Valve 27......................................
Group 13: Fuel Line and Filter 29......................................
Group 14: Starting Motor 31..........................................
Group 15: Gasket Set 33.............................................
Group 101: Air Intake 35.............................................
Group 103: Fuel System 36..........................................
Group 104: Cooling System 38........................................
Group 105: Engine 42...............................................
Group 107: Nameplate and Decals 44..................................
Group 109: Skid and Plant Mounting 45................................
Group 201: Generator and Mounting 46................................
Group 301: Controller and Mounting 48................................
Group 701: Literature 49.............................................
Paint and Miscellaneous Parts 49......................................
Parts List: Accessories 50............................................
Appendix A. Glossary of Abbreviations 55..............................
Appendix B. Common Hardware Application Guidelines 57................
Appendix C. General Torque Specifications 58...........................
Appendix D. Common Hardware Identification 59........................
Appendix E. Common Hardware List 60................................
TP-6270 11/062
Introduction
This manual lists service replacement parts for
8.5EFOZD/10EOZD, 9EFOZD/10EOZD, and 7EFOZD/
9EOZD generator sets.
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.
Specification Number Index. Lists the generator set
specs and groups.
Group Parts Lists. List the part numbers of parts in the
groups.
Kit Sections. List modules and accessories and their
parts.
Appendices. Include Abbreviations, Common
Hardware Application Guidelines, General Torque
Specifications, Common Hardware Identification, and
Common Hardware List.
x:in:004:002
Numbering System Significance
This manual uses the following numbering systems:
Specification Number. The product identification
number located on the generator set nameplate.
Specification numbers break down into groups.
Group Number. A unique number representing a parts
group needed to assemble a generator set function. For
example, Group 101 is the Air Intake group.
Variation or Module Number. A group might have
several variations. Each variation performs the same
function with different parts lists. For example, a 50 Hz
generator alternator and a 60 Hz generator alternator
both perform the same function; however, with different
parts. Each difference requires a group variation or
module number.
Part Number. The part number identifies an individual
assembly, subassembly, component, or accessory kit.
x:in:004:003:a
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 use
illustrations for assembly or disassembly.
x:in:004:004a
How to Find Part Numbers
Use the following steps to locate a service replacement
part.
1. Locate the generator set nameplate to identify the
generator set spec number.
2. Locate a second generator set nameplate listing
accessories to identify installed modules.On
some models the accessory nameplate is mounted
inside the generator junction box.
3. Turn to the Specification Number Index.The
first column lists the generator set spec numbers.
The headings identify thegroups of parts that make
up the generator set.
4. Identify the group most likely to include the
service part number.
5. Find the group variation number at the
intersection of the spec number row and the group
column. Note the variation number.
6. Page forward to locate the group identified in
step 4 or find the appropriate page in the Table of
Contents.
7. Find the part on the illustration and note the item
number of the part or find the part description in
the parts list.
8. Select the part number that corresponds to
your group variation. The first column lists the
illustration item number. Find the variation
identified in the Specification Number Index or the
module number found on the generator set
nameplate in the appropriate column on the right
side of the parts list table. Find the quantity used at
the intersection of the item number row and the
variation column. A blank space at the intersection
means the variation/module does not use that part
number.
x:in:004:005
Hardware References
Many common hardware items do not appear in parts
manuals or will appear as common hardware entries. A
common hardware entry lists the size of the hardware.
For example, an item that appears as “Hardware,
3/8-16” in the text means that the piece is 3/8-16 size.
Obtain common hardware locally or, if contacting the
factory, use the Common Hardware List in the appendix
to identify the common hardware part number and
specifications. See Common Hardware Application
Guidelines in the appendix for mating hardware
instructions.
Some hardware items require a specific size or some
other characteristic. In that case, use the part number
listedinthetext.
When replacing hardware, do not substitute inferior
grade hardware. Replacement hardware grade should
be equal to or better than the grade of the
manufacturer’s original hardware. Use the Common
Hardware List in the appendix to identify the common
hardware hardness.
x:in:004:006
TP-6270 11/06
3
Specification Number Index
Group Title
Group No. 1 2 3 4 5 6 7 8 9 10 12 13 14 15
Spec No.
GM30507-GA1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
GM30507-GA2 1 1 1 1 1 1 1 1 2 2 1 1 2 1
GM30507-GA3 1 1 1 1 1 1 1 1 1 1 1 1 1 1
GM30507-GA4 1 1 1 1 1 1 1 1 2 2 1 1 2 1
GM37403-GA1 2 2 2 2 -- 2 2 2 3 3 2 2 3 2
GM37403-GA2 2 2 2 2 -- 2 2 2 3 3 2 2 3 2
Variation Number
Group Title
Group No. 101 103 104 105 107 109 201 301 701
Spec No.
Variation Number
GM30507-GA1 GR1 GR2 GR3 GR4 GR5 GR6 GR7 GR8 44
GM30507-GA2 GR1 GR9 GR10 GR11 GR5 GR6 GR7 GR12 44
GM30507-GA3 GR1 GR2 GR3 GR4 GR14 GR6 GR13 GR8 44
GM30507-GA4 GR1 GR9 GR10 GR11 GR14 GR6 GR13 GR12 44
GM37403-GA1 2 3 3 3 3 2 3 3 69
GM37403-GA2 2 3 3 4 3 2 3 3 69
4
TP-6270 11/06
Group 1: Cylinder Block
Quantity
Var. No .
Item Part Number Description 1
1 GM35737 Block assembly, cylinder 1
4 252771 Plug PT1/4 2
5 252566 Plug 1
6 252078 Plug 1
7 GM35519 Plug 50 1
8 252728 Plug 2
9 225924 Plug 30 6
12 225703 Bolt 8
13 252933 Bush 1
TP-6270 11/06
6270_1
Quantity
Var. No .
Item Part Number Description 1
14 252771 Plug PT1/4 1
24 GM35740 Bearing, main (std) 4
27 229802 Bearing 1
30 225705 Bolt 14
31 GM33836 Gasket, cylinder head 1
32 225709 Bearing, main 4
35 225710 Bearing, thrust 2
38 GM35428 Spacer 1
5
Group 1: Cylinder Block, continued
See Group 5
See Group 5
Quantity
Var. No .
Item Part Number Description 2
1 GM47257 Block assembly, cylinder 1
5 252078 Plug 1
6 252028 Plug 4
7 GM47254 Plug 45 1
8 252771 Plug PT1/4 1
9 GM47253 Plug 25 3
10 225703 Bolt 8
13 GM47256 Bushing, camshaft 1
14 252728 Plug 1
15 GM47258 Main bearing set 4
27 229802 Bearing 1
30 225705 Bolt 14
31 GM47255 Gasket, cylinder head 1
32 225710 Bearing, thrust 2
35 GM47259 Main bearing, 0.25 US 4
6
6270_1_2
TP-6270 11/06
Group 2: Gear Housing
Quantity
Var. No .
Item Part Number Description 1
1 GM35736 Housing assembly, gear 1
4 GM35720 Plug, screw 1
5 GM35721 Plug 1
6 252931 Oil seal 1
7 GM35464 Cover assembly, pump 1
8 GM35463 Cover, lube oil pump 1
9 GM35653 Valve, relief 1
10 GM35578 Spring 1
11 GM35520 Plug 1
12 GM35429 Flange, gear case 1
13 GM35430 Stud, M8 x 25 3
14 250837 Cap 1
15 256531 Cover 1
16 252932 Knock, pipe 2
17 GM35421 O-ring 4
TP-6270 11/06
6270_2
Quantity
Var. No .
Item Part Number Description 1
18 GM35465 Rotor, inner 1
19 GM35466 Rotor, outer 1
20 GM35467 Screw, M6 x l6 7
21 252764 O-ring, pump 1
22 GM35522 Bolt, M8 x 85 3
23 252684 O-ring 1
24 252696 Bolt, M8 x 16 4
25 252696 Bolt, M8 x 16 3
26 256798 Bolt, M8 x 55 plated 12
27 GM35732 Nut 3
28 252750 Cover, blind 1
29 256796 O-ring 1
30 252693 Bolt 2
31 252998 Gasket 1
7
Group 2: Gear Housing, continued
6270_2_2
8
TP-6270 11/06
Group 2: Gear Housing, continued
Quantity
Var. No .
Item Part Number Description 2
1 GM47261 Case, gear 1
3 GM47262 Bolt, stud M8 3
4 GM47270 Cover assembly, gear case 1
5 GM47272 Cover assembly, gear case 1
6 GM47269 Cover, gear case 1
8 229634 Oil seal 1
9 GM35720 Plug, screw 2
10 GM47266 Cover assembly, pump 1
11 GM47265 Cover, lub. oil pump 1
12 GM35653 Valve, relief 1
13 GM47271 Spring 1
14 GM35520 Plug 1
15 GM47267 Rotor, inner 1
16 GM47268 Rotor, outer 1
17 GM35467 Screw, M6 x 16 8
18 GM47263 Cover, pump timing 1
19 229674 Pipe, knock 4
20 GM47260 O-ring 1
21 GM47264 O-ring 3
22 252764 O-ring, fuel injection pump 1
23 225816 Bolt, M6 x 12 1
24 252693 Bolt 4
25 225921 Bolt 4
26 225921 Bolt 3
27 363207 Bolt, M6 x 60 7
28 229766 Bolt, M6 x 65 plated 2
29 GM35732 Nut 3
30 GM46206 Gasket, liquid 1
31 250837 Lub oil cap 1
32 252684 O-ring 1a p-32.0 1
33 252750 Cover, blind 1
34 256796 O-ring 1a s-24.0 1
35 252693 Bolt 2
TP-6270 11/06
9
Group 3: Mounting Flange and Oil Sump
Quantity
Var. No .
Item Part Number Description 1
1 256750 Parallel pin 8 x 16 2
2 229114 Mounting flange 1
3 252998 Gasket 1
4 229505 Bolt, M10 x 20 6
5 252714 Bolt 4
6 225706 Spacer 1
7 252701 Bolt, M8 x 35 3
8 GM35492 Sump assembly, oil 1
10
6270_3
Quantity
Var. No .
Item Part Number Description 1
9 225386 DrainplugM22 1
11 225425 Seal washer 1
12 252696 Bolt, M8 x 16 6
13 252703 Bolt 22
14 256750 Parallel pin 8 x 16 2
15 225866 Case assembly 1
17 252930 Rear oil seal 1
18 363430 Bolt, M8 x 30 6
TP-6270 11/06
Group 3: Mounting Flange and Oil Sump
TP-6270 11/06
6270_3_2
Quantity
Var. No .
Item Part Number Description 2
1 256750 Parallel pin 8 x 16 2
2 GM47276 Backplate 1
3 229505 Bolt, M10 x 20 7
4 252714 Bolt 3
5 363026 Parallel pin 6 x 10 2
6 229671 Case assembly, oil seal 1
8 250836 Oil seal 1
9 229761 Bolt, M6 x 22 plated 10
10 GM47274 Spacer, oil sump 1
11 GM47275 Sump assembly, lub. oil 1
12 GM47273 Plug, M16 1
14 363448 Washer, seal 16S 1
15 252695 Bolt, M8 x 12 1
16 225819 Bolt, M8 x 30 plated 1
17 252703 Bolt 11
18 252704 Bolt 3
19 GM46206 Gasket, liquid 1
11
Group 4: Cylinder Head
12
6270_4
TP-6270 11/06
Group 4: Cylinder Head
Quantity
Var. No .
Item Part Number Description 1
1 363110 Lifter, engine 2
2 225818 Bolt, M8 x 14 4
3 GM35440 Shaft assembly, rocker 1
4 GM35441 Shaft, rocker arm 1
6 GM35442 Support, rocker arm 2
7 GM35443 Support, rocker arm 2
8 GM35444 Stud 3
9 252815 Spring 3
10 GM35447 Arm assembly, rocker 6
11 229844 Valve screw 6
13 252817 Nut, M8 6
14 250999 Cap 6
15 GM35448 Head assembly, cylinder 1
19 250835 Valve guide 3
21 GM35449 Guide, valve 3
23 252732 Plug 40 2
24 GM35438 Valve, intake 3
25 GM35439 Valve, exhaust 3
26 225713 Spring, valve 6
27 250882 Retainer 6
28 225766 Seal, valve stem 3
29 250844 Valve seal 3
30 250806 Pin, cotter 6
32 252744 Seat 3
33 GM35451 Retainer, nozzle 3
34 GM35495 Washer 3
35 250963 Spring pin 2
36 252699 Bolt, M8 x 25 plated 2
37 252703 Bolt 3
38 252704 Bolt 6
39 250837 Cap 1
40 GM35446 Bonnet assembly, head 1
41 GM35431 Plate, baffle 1
42 252805 Baffle 1
43 GM35434 Plate, diaphragm 1
44 GM35435 Cover, diaphragm 1
45 GM35436 Diaphragm 1
46 GM35437 Spring, diaphragm 1
49 GM35445 Gasket, bonnet 1
50 363201 Screw, tapping 5 x 10 4
51 363201 Screw, tapping 5 x 10 4
52 252470 Cap nut 3
53 250801 Oring 3
54 252684 O-ring 1
55 GM35450 Protector, nozzle 3
56 252998 Gasket 1
TP-6270 11/06
13
Group 4: Cylinder Head, continued
14
6270_4_2
TP-6270 11/06
Group 4: Cylinder Head, continued
Quantity
Var. No .
Item Part Number Description 2
1 GM38596 Lifter, engine 2
2 252696 Bolt, M8 x 16 2
3 GM47297 Protector, nozzle 3
4 229624 Gasket 6
5 GM47277 Cap, valve 6
6 GM47291 Head assembly, cylinder 1
14 GM35426 Guide, valve 6
15 GM47278 Plug 35 2
16 GM47299 Plug 1/16, screw 1
17 GM47281 Valve, intake 3
18 GM47282 Valve, exhaust 3
19 GM47283 Spring, valve 6
20 GM35587 Retainer, spring 6
21 GM35423 Cotter, valve 12
22 GM35424 Seal, valve stem 3
23 GM35425 Seal, valve stem 3
24 250963 Spring pin 6 x 12 2
25 GM47284 Support assembly, arm 1
26 GM47285 Shaft assembly, rocker 1
29 GM47286 Support, rocker arm 3
30 363034 Spring 2
31 GM47290 Arm assembly, rocker 6
32 229844 Valve screw 6
34 252817 Nut, M8 x p1.0 6
35 252345 Clip 2
36 363213 Screw, m5 x 16 1
37 252702 Bolt 3
38 250837 Lub oil cap 1
39 GM47289 Bonnet assembly, head 1
40 GM47279 Plate, baffle 1
41 GM47280 Baffle, breather 1
42 GM47280 Baffle, breather 2
43 GM47296 Diaphragm assembly 1
44 GM35434 Plate, diaphragm 1
45 GM35435 Cover, diaphragm 1
46 GM35436 Diaphragm 1
47 GM35437 Spring, diaphragm 1
50 GM47295 Gasket, bonnet 1
51 GM47287 Cover, bonnet 1
52 GM47288 Gasket, bonnet cover 1
53 363201 Screw, tapping 5 x 10 4
54 363201 Screw, tapping 5 x 10 4
55 GM47298 Screw, 5 x 16 2
56 252684 O-ring 1a p-32.0 1
57 225817 Bolt, M6 x 20 3
58 225429 Bolt, M6 x 75 Plated 6
59 GM47293 Plug, glow 3
60 GM47294 Connector, glow plug 1
61 GM46206 Gasket, liquid 1
62 GM47292 Gasket, manifold 1
TP-6270 11/06
15
Group 5: Intake Manifold
Quantity
Var. No .
Item Part Number Description 1
1 GM35433 Pipe, breather 1
2 229425 Clamp 2
3 GM35452 Manifold, intake 1
5 GM33685 Gasket, intake manifold 1
6 252697 Bolt 4
7 252707 Bolt 2
8 225778 Gasket 1
9 GM35579 Joint 1
10 252697 Bolt 4
11 225717 Gasket, exhaust manifold 1
6270_5
16
TP-6270 11/06
Group 6: Camshaft and Drive Gear
TP-6270 11/06
6270_6
Quantity
Var. No .
Item Part Number Description 1
1 252819 Tappet 6
2 225718 Rod, push 6
3 GM35453 Camshaft assembly 1
4 252804 Metal, thrust 1
6 256587 Gear, camshaft 1
7 252669 Key7x14 1
8 GM35734 Nut, lock M14 plated 1
9 225818 Bolt, M8 x 14 2
10 GM35459 Shaft, idle gear 1
11 GM35461 Gear assembly, idle 1
14 GM35460 Bush, idle gear 1
15 252702 Bolt 3
16 GM19682 Bolt, gear 4
17 GM35462 Gear, pump 1
18 GM35711 Flange 1
19 GM35714 Washer , spring 1
17
Group 6: Camshaft and Drive Gear, continued
Quantity
Var. No .
Item Part Number Description 2
1 363039 Tappet 6
2 GM47300 Rod, push 6
3 GM47301 Camshaft assembly 1
9 225816 Bolt, M6 x 12 2
10 GM47302 Shaft, idle gear 1
11 GM47303 Gear assembly, idle 1
14 GM47306 Bolt, M6 x 35 plated 3
15 GM19682 Bolt, gear 4
16 GM47304 Gear, pump 1
17 GM47305 Flange 1
18 252666 Washer, spring 1
19 252725 Nut 1
18
6270_6_2
TP-6270 11/06
Group 7: Crankshaft and Piston
6270_7
Quantity
Var. No .
Item Part Number Description 1
1 GM35454 Crankshaft assembly 1
2 256750 Parallel pin 8 x 16 1
5 GM35455 Gear , crankshaft 1
6 252669 Key7x14 1
8 256654 Spring pin 1
9 GM35456 V-pulley, crankshaft 1
10 252937 Washer 1
11 252763 Bolt, V pulley 1
12 252401 Bolt, flywheel 6
13 229117 Flywheel assembly 1
15 252774 Gear, ring 1
16 GM35457 Piston w/ring 3
18 GM35458 Ring set, piston 3
22 225395 Pin, piston 3
23 229738 Circlip 6
24 225838 Rod assembly, connecting 3
28 225726 Bushing piston pin 3
29 225723 Bolt 6
30 225724 Bearing, crankpin 3
32 225725 Crank bearing 3
34 GM35738 Piston w/ring, 0.25 OS 3
36 GM35739 Ring set, 0.25 OS 3
TP-6270 11/06
19
Group 7: Crankshaft and Piston, continued
Quantity
Var. No .
Item Part Number Description 2
1 GM47309 Crankshaft assembly 1
2 256750 Parallel pin 8 x 16 1
5 229748 Key, 4 x 12 1
6 GM47307 Gear, crankshaft 1
8 GM47320 Flywheel assembly 1
11 363081 Gear, frt. diff. drive 1
12 GM47308 V-pulley , crankshaft 1
13 229664 Bolt, M12 x 1.25 1
14 229639 Washer 1
15 GM47310 Piston w/ring 3
17 GM47312 Ring set 3
20
6270_7_2
Quantity
Var. No .
Item Part Number Description 2
21 GM47311 Pin, piston 3
22 GM47321 Circlip 22 6
23 GM47315 Rod assembly, connecting 3
27 GM47319 Bushing, piston pin 3
28 GM47316 Bolt, connecting rod 6
29 GM47317 Metal assembly, crank pin 3
31 GM47314 Piston assembly, 0.25 OS 3
33 GM47313 Ring set, 0.25 OS 3
37 GM47318 Bearing, pin 0.25 US 3
39 229638 Bolt 5
TP-6270 11/06
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