All K&B 7.5cc (.45) and some parts fit 6.5cc (.40)
Always refer to these as 7.5's or 6.5's --- NOT .45 or .40
IB
DF
OB
9181
9101
8702
8703

 

Outboard #8701 First model. 8702 second model. 8703 third model.

Displacement .452 (7.41cc) Bore .870 Stroke .760
RPM 2,000 - 25,000 HP 2.2 @ 25,000 Weight 2.03 lbs.
Several carburetor styles used.

* DF - ducted fan / OB - outboard / IB - inboard
 

PARTS LISTED BELOW ARE FOR REFERENCE ONLY
Click here for prices, availability and on line ordering

New
Part No.
Old
Part No.
Description
Model
Model No.
-
8753
Power head less carburetor
OB
8702
-
7833
Prop Stud Assembly Kit
-
-
10-8701
9195
Crankcase
OB
8702 8703
10-8702
9088
Crankcase early model
OB
8701
10-8703
9184
Crankcase
IB
9181
10-8704
9109
Crankcase
DF
9101
11-8701
9178
One Piece Head
DF
IB
9101
9181
11-8720
9161
Head Assembly, Fittings & Screws
(use 11-8721 & 11-8722)
OB
8701 8702
11-8721
9160
Combustion Chamber
IB
OB
9181
8701 8702
11-8722
8369
Cooling Jacket
OB
IB
8701 8702
9181
11-8723
9191
air cooled head gold
OB
8703
15-8701
9086
Wrist pin w/pad early model
OB
8701 8702
15-8702
7514
Wrist Pin
OB
DF
8703
9101
16-8701
9097
Connecting rod .218 Lower end diameter
OB
IB
8701
9181
16-8702
9192
Connecting Rod (Tubular) .218 Lower end diameter
OB
DF
IB
8702 8703
9101
9181
16-8703
9193
Con Rod .234 pin dia.
OB
IB
8702 8703
9181
17-8701
-
Crankshaft
Aero
-
17-8702
9163
Crankshaft; pin .218 dia.
DF
IB
9101
9181
17-8703
9179
Crankshaft (.234 dia?)
IB
9181
17-8704
9196
Crankshaft use with 9192 Con Rod .218 crank pin dia
OB
8702 8703
17-8705
8730
Crankshaft early model carbibe weight has small pin .218
OB
8701
17-8706
9188
Crankshaft use with 9193 Con Rod .234 crank pin dia
OB
-
18-8446
8446
Ball Bearing, PTO Top or Bottom
OB
8701 8702 8703
18-8778
8778
Ball Bearing - (Front)
OB
DF
IB
8701 8702 8703
9101
9181
18-8775
8775
Bearing, (rear)
DF
IB
9101
9181
18-8780
8780
early model rear bearing .592 ID --- 15mm
OB
8701
18-8781
8781
Ball Bearing (Rear) .671 ID -17mm
OB
8702, 8703
19-6101
6557
Collet
OB
DF
IB
8702 8703
9101
9181
19-8702
9019
Collet early model
(use 19-6101)
OB
IB
8701
9181
20-8702
9177
Prop Drive
DF
9101
-
8717
Flywheel early model
OB
8701
20-8721
5121
Flywheel (Aluminum)
IB
9181
20-8722
8796
Flywheel (Lightened) uses 19-6101 collet
OB
8702
20-8723
9187
Flywheel gold uses 19-6101 collet
OB
8703
20-8729
9285
Starter Overdrive Pulley
IB
9181
21-8701
9090
Back Cover
Aero
-
21-8721
8709
Back plate Only (PTO)
OB
8701 8702
21-8722
8747
Back plate only (PTO)
OB
8703
21-8723
9168
Drum Rotor Back Plate Assembly .625 carburetor neck hole
DF
IB
9101
9181
21-8749
8749
Back plate assembly w/ball bearings
OB
8703
21-8754
8754
Back Plate Assembly w/ Ball Bearings
OB
8701 8702
-
7758
Prop Washer
DF
9101
23-8921
8373
Washer
IB
9181
-
7759
Prop Nut
DF
9101
24-4090
7832
Prop stud, nut & washer
-
-
-
7761
Prop Stud (1/4 -28 thread)
IB
9181
-
7828
Prop Stud 2
DF
9101
25-4803
-
Engine Screw Set
Semi-Pro
-
25-8701
-
Engine screw set Aero
Aero - DF
-
25-8702
-
Engine screw set Marine
IB
9181
25-8703
-
Engine screw set Marine
OB
8701 8702 8703
25-8721
-
Lower outboard unit screw set
OB
8701 8702 8703
25-8731
-
Adaptor screws
-
-
25-8732
-
Muffler screw set
-
-
25-8797
8797
Flywheel Socket Screw
OB
8702 8703
26-4801
4819
Wrist pin snaps
OB
8703
26-8701
-
Teflon pads
-
-
-
8669
O-ring for high speed needle
(use 27-0183)
OB
8701
27-8731
9023
Exhaust Adapter, "0" Ring
DF
IB
9101
9181
27-8781
8745
O-ring Carburetor Neck (2ea)
OB
DF
IB
8701 8702 8703
9101
9181
27-8782
8746
O-ring Carburetor Neck (2ea) early disk valve type
IB
9181
28-8701
8692
Carburetor Draw Bar
OB
DF
IB

8701 8702 8703
9101
9181

28-8702
8693
Carburetor Draw Bar early 8701?
OB
8701
29-8701
8289
Gaskets, Engine (2)
(use 29-4001)
OB
DF
IB
8701 8702 8703
9101
9181
29-8711
9147
Head Shim Kit, .003 & .010

DF
OB
IB

8701 8702 8703
9101
9181
29-8732
9066
Muffler gasket
OB
8703
30-8701
9108
Exhaust Adapter (w/o O-ring - uses 9023 O-ring)
DF
9101
30-8702
9000
Exhaust Adapter, 12 Degree (w/o O-ring - uses 9023 O-ring)
IB
9181
30-8703
9001
Exhaust Adapter, 20 Degree (w/o O-ring - uses 9023 O-ring)
IB
9181
30-8704
8728
Exhaust Adapter (w/o O-ring - uses 9023 O-ring)
OB
8701
8702
30-8709
 Adaptor pipe   
30-8721
9082
Muffler
OB
8703
30-8722
9009
Exhaust adapter
OB
8703
--
8750
front plate complete with shaft early model
OB
8701
31-8702
--
Front plate (old style 6.5, 7.5)
Aero
 
31-8705
9087
Front Plate
DF
IB
9101
9181
31-8721
9197
front plate outboard (has oiling hole)
OB
--
31-8722
9126
front plate early model
OB
8701
31-8791
9198
Front Plate Assembly
OB
8702 8703
31-8792
9148
Front Plate Assembly

DF
IB

9101
9181
33-8701
8734
piston/cylinder early model
OB
IB
8701 8702
9181
33-8702
9128
Piston/Cylinder assembly pipe timing
OB
IB
DF
8703
9101
9181
33-8703
9167
Piston/Sleeve
OB
8702
37-8701
  Drum Valve
DF
I B
9101 9181
--
8710
twin steering arm early model
(use 8721)
OB
8701
--
8727
prop
OB
8701
50-8701
8764
Lower Unit Assembly Complete exhaust thru includes flex shaft, teflon tube, prop shaft.
OB
8701 8702
50-8702
8756
Lower end assembly complete uses muffler (Includes flex shaft, Teflon tube, prop shaft)
OB
8703
51-8701
8706
Lower Unit Halves, Matched exhaust thru lower unit
OB
8701 8702
51-8702
8757
Lower end halves only
OB
8703
53-8701
8708
Flex Shaft
OB
8701 8702 8703
53-8768
8768
Water Pickup Tube
OB
8701 8702
53-8770
8770
Early exhaust baffles
OB
8701
54-8701
5156
Square Drive (.187 sq)
IB
9181
54-8714
8714
Hinge Pin (Stainless)
OB
8701 8702 8703
54-8771
8771
Prop Nut - 2 per bag
OB
8701 8702 8703
54-8791
5191
Cable Collet Assembly w/ 3/16 collet
IB
9181
54-8792
5170
Cable Collet 3/16 ID
IB
9181
54-8901
8368
Water Fittings, Bent w/nut
OB
8701 8702
54-8902
8367
Water Fittings (10-32)
IB
9181
-
8645
Steering clamp
OB
8701
56-8716
8716
Teflon Flex Shaft Tube
OB
8701 8702 8703
56-8721
8721
Steering Arm
OB
8702 8703
56-8731
8731
prop shock
OB
8701
57-8701
8751
Prop Shaft Assembly
OB
8701 8702 8703
57-8721
8772
PTO Shaft
OB
8701 8702 8703
58-8701
8711
Hinge w/ Bushing
OB
8701 8702 8703
58-8752
8752
Hinge with bushing early model
OB
8701
59-8765
8765
Lower Unit Maintenance Kit
OB
8701 8702 8703
-
5176
Carburetor complete 5/92 on carburetor needle
IB
9181
-
8760
early style square carburetor
OB
8701
80-8701
9445
K&B Carburetor early DF, IB
OB
DF
IB
8702 8703
9101
9181
80-6701
9467
Carburetor(Optional) .453 Bore
OB
IB
8702 8703
9181
80-8721
9260
K&B Carburetor late
OB
8702
-
8766
Carburetor body, early square carb
OB
8701
81-8701
9446
Carburetor Body early
OB
DF
IB
8702 8703
9101
9181
81-8721
9261
Carburetor Body late
OB
8702
-
8738
carburetor barrel early model
OB
8701
82-8701
9263
Carburetor Barrel
OB
DF
IB
8702 8703
9101
9181
-
5220
Carburetor barrel spring early model
(use 83-0102)
OB
8701
-
6834
Carburetor Snap Ring
OB
DF
IB
8702 8703
9101
9181
-
8744
early carburetor barrel spring
OB
8701
83-5622
5622
Carburetor control arm
-
-
83-8701
8743
throttle arm
OB
8701
-
7739
needle valve collet and lock nut
OB
8701
-
8679
Carburetor Fuel Fitting
OB
DF
IB
8701 8702 8703
9101
7525
-
8742
idle needle receptacle early model
OB
8701
-
8767
early carburetor idle stop screw
OB
8701
-
7737
Needle valve stem early model
OB
8701
85-0102
8741
idle needle w/O-ring
OB
8701
85-6703
9234
Carburetor Low Speed Disk early
OB
DF
IB
8702 8703
9101
9181
85-8702
9235
Low Speed Disk late (for remote needle)
OB
DF
IB
8702 8703
9101
9181
86-8721
7519
throttle cable bracket
OB
-
87-2918
2918
Needle valve assembly on carburetor
IB
9181
87-5665
5665
Needle Valve Assembly (early style w/ needle on carburetor)
-
-
-
9256
Carburetor Maintenance Kit late
OB
8702
-
9447
Carburetor Maintenance Kit early
OB
DF
IB
8702 8703
9101
9181
-
9165
Engine Maintenance Kit
(use 29-8701 and 25-87xx)
OB
8702 8703
--
9255
Remote Needle Valve
OB
DF
IB
8702 8703
9101
9181
-
9275
Mixture Control Needle Valve
OB
DF
IB
8702 8703
9101
9181
99-8449
8449
Flex Shaft Lube
OB
8701 8702 8703
99-9144
9144
Engine Maintenance Kit
OB
DF
IB
8701
9101
9181
 

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MECOA/K&B -- P.O. Box 5 -- Sierra Madre, CA 91025 U.S.A.