.67 .82 .91 100 R/C
PARTS LIST

Click on part no. to see picture
Ducted Fan	5299 / 5300 9549 / 9550		Outboard	5101 / 5375 9550 / 9575
Aero	9500		Inboard	5100 / 5350 / 5390

.67 (11cc), .82 (13.4cc), .91 & 1.00 (16cc) Family.
These were made in outboard, inboard, aero, and ducted fan.

Distinguishing features:
No size markings on most engines.
Early models had 11cc cast on and had a removable front housing.
Most have oval K&B logo.
Some have size stamped on mounting lug or in the serial number. Like B10082 would be a .82
All have 6 bolt head.

To be sure of what size you have we highly suggest measuring the bore size with calipers.

.67 - 0.962"Ø

.82 - 1.040"Ø

.91 - 1.100"Ø

1.00 - 1.100"Ø

Inboards were only made in .67 - .82 and .91 sizes
Outboards were only made in .67, .82, and 1.00 sizes
Ducted Fans were only made in .82 and 1.00 sizes
(Some ducted fans .77 size were made for Bob Violett but at present time we only have some renegade crankcases and Cylinders.)
Aero were only made in .67 (very few), and 1.00 sizes

The list below is for reference only. Click the blue banner above for more info.

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

New Part No.	Old Part #	Description	Model	Model No.
10-6701	5118	Crankcase	.67 OB	5101
10-6702	5125	Crankcase	.67 IB	5100
10-6703	5311	Crankcase	.82 DF	5300
10-6704	5361	Crankcase	.82 IB	5350
10-6705	5381	Crankcase	.82 OB	5375
10-6706	5391	Crankcase	.91 IB	5390
10-6707	9551	Crankcase	100 DF	9550, 9549
10-6708	9501	Crankcase	100 Aero 100 OB	9500 9575
10-6709	-	Crankcase	82 DF	-
11-6701	9507	Cylinder Head	100 Aero 100 DF	9500 9550, 9549
11-6704	9554	Cylinder Head - 1 Piece	100 DF	9550, 9549
11-6705	5305	Cylinder Head	.82 DF	5300
11-6711	5320	Heat Sink Head	.82 DF	5300
11-6712	9557	Heat Sink Head	100 DF	9550, 9549
11-6721	5105	Water Cooled Marine Head	.67 OB .67 IB	5101 5100
11-6722	5355	Water Cooled Marine Head	.82 OB .82 IB	5375 5350
11-6723	5397	Water Cooled Marine Head	.91 IB	5390
11-6724	9566	Water Cooled Marine Head	100 OB	9575
11-6791	5106	Head Button - Combustion Chamber	.67 OB .67 IB	5101 5100
11-6792	5302	Head Button - Combustion Chamber	.82 DF	5300
11-6793	5352	Head Button - Combustion Chamber	.82 OB .82 IB	5375 5350
11-6794	5396	Head Button - Combustion Chamber	.91 IB	5390
11-6795	9506	Head Button - Combustion Chamber	100 Aero 100 OB	9500 9575
11-6796	9556	Head Button - Combustion Chamber	100 DF	9550, 9549
15-6701	5108	Wrist Pin	.67 OB .67 IB	5101 5100
15-6702	5310	Wrist Pin	100 Aero .82 100 DF .82 100 OB .82 .91 IB	9500 5300 9550 9549 5375 9575 5350 5390
16-6701	5321	Connecting Rod	100 Aero .82 100 DF .67 .82 100 OB .67 .82 .91 IB	9500 5300 9550 9549 5101 5375 9575 5100 5350 5390
17-6701	9505	Crankshaft	100 Aero	9500
17-6702	5303	Crankshaft	. 82 .91 IB .82 DF	5350, 5390 5300
17-6703	9555	Crankshaft	100 DF	9550, 9549
17-6704	5120	Crankshaft	.67 IB
17-6721	5139	Crankshaft	.67 OB	5101
17-6722	5376	Crankshaft	.82 OB	5375
17-6723	9565	Crankshaft	100 OB	9575
18-8446	8446	Bearing, PTO	.67 .82 100 OB	5101 5375 9575
18-8774	8774	Rear Bearing; 1.2598 OD 32mm	.82 DF .67 .82 .91 IB	5300 5350 5100 5390
18-8775	8775	Front Bearing; .944 OD 24mm	.82 DF .67 .82 .91 IB	5300 5101 5350 5390
18-8777	8777	Rear bearing (Early .67 inboard) 1.102 OD 28mm	-	-
18-8778	8778	Ball Bearing, Front	100 Aero 100 DF .67 .82 100 OB	9500 9550 9549 5101 5375 9575
18-8781	8781	Ball Bearing, Rear	100 Aero 100 DF .67 .82 100 OB	9500 9550 9549 5101 5375 9575
19-6101	6557	Prop Drive Collet	100 Aero 100 DF .67 .82 100 OB	9500 9550 9549 5101 5375 9575
19-6701	5116	Drive Collet	.67 .82 .91 IB .82 DF .67 .82 .91 IB	5100 5350 5390 5300 5350 5100 5390
20-6101	6558	Prop Drive	100 DF 100 Aero	9550 9549 9500
20-6701	9513	Prop Drive	100 DF 100 Aero	-
20-6702	5306	Prop Drive (.530 length) use with 19-6101 collet	.82 DF	5300
20-6703	5307	Prop Drive (1.145 length) use with 19-6101 collet	.82 DF	5300
20-6721	5115	Flywheel, Brass (use with 19-6701 collet)	.67 .82 IB	5100, 5350
20-6722	5131	Flywheel, Aluminum (use with 19-6701 collet)	.67 .82 IB .91 IB	5101 5350 5390
20-6723	9285	Starter Pulley (Overdrive)	.91 IB	5390
20-8722	8796	Flywheel, Lightened	.67 .82 100 OB	5101 5375 9575
21-6701	9509	Back Plate	100 Aero	9500
21-6702	5336	Drum Valve Housing	.82 100 DF .67 .82 .91 IB	5300 9550 9549 5100 5350 5390
21-6721	5127	Back plate Only PTO	.67 .82 OB	5101 5375
21-6722	9568	Back plate Only PTO	100 OB	9575
21-6791	5335	Drum Valve Back Plate Assembly	.82 100 DF .67 .82 .91 IB	5300 9550 9549 5100 5350 5390
21-6792	5146	Back Plate Assembly w/Bearings	.67 .82 OB	5101, 5375
21-6793	9570	Back Plate PTO Assembly w/Bearings	100 OB	9575
23-6701	9558	Prop Washer	100 DF	9550 9549
24-4090	7832	Prop Washer Stud Nut Kit	.82 DF	5300
24-4091	7833	Prop Stud, Nut, & Washer 1/4-28 x 2"	.82 DF	5300
24-6701	6836	Prop Nut	100 Aero 100 DF	9500 9550 9549
-	9522	Prop Washer and Nut	100 Aero 100 DF	9500 9550 9549
25-6701	-	Engine screw set	1.00 aero	9500
25-6702	-	Engine screw set	.82 100 DF	5300 9550 9549
25-6721	-	Engine screw set	.67 .82 .91 IB	5100 5350 5390
25-6722	-	Engine screw set	.67 .82 OB	5101 5375
25-6723	-	Engine screw set	100 OB	9575
25-6731	-	Muffler screws	100 aero	9500
25-6732	-	Ex adpt screws	All	all
-	7761	Prop Stud, 1/4 X 28 Thread	.67 .82 .91 IB	5350 5100 5390
25-8721	-	Lower Outboard Unit Screw Set	-	-
25-8797	8797	Flywheel Socket Screw	.67 .82 100 OB	5101 5375 9575
26-6701	5149	Wrist Pin Retainers (2 each)	100 Aero .82 100 DF .67 .82 100 OB .67 .82 .91 IB	9500 5300 9550 9549 5101 5375 9575 5100 5350 5390
27-5880	--	Mixture disk O-ring set	--	--
27-6721	5229	Back Plate O-ring (1/pack)	100 Aero .82 100 DF .67 .82 100 OB .67 .82 .91 IB	9500 5300 9550 9549 5101 5375 9575 5100 5350 5390
27-6731	5086	Exhaust Adapter O-ring (2 per pack)	.82 100 DF	5300 9550 9549
27-6781	6576	Carburetor O-ring (4/pack)	.67 .82 OB .82 DF .67 .82 .91 IB	5101 5375 5300 5350 5100 5390
27-8781	8745	Gasket, Carburetor (2/pack)	100 Aero	9500
27-8782	8746	Carburetor Gasket (2/pack)	100 OB	9575
28-6701	5174	Carburetor Draw Bar Assembly (.293 dia)	.67 .82 IB .82 DF	5100 5350 5300
28-8701	8692	Draw Bar (.233 dia use on 5335 housing)	100 DF .67 .82 OB .67 .82 .91 IB	9550 9549 5101 5375 5390
28-8703	8694	Carburetor Draw Bar (.233 dia)	100 OB 100 Aero	9575 9500
29-6711	5194	Head Shim Set (2/pack) .002 / .005	.67 OB .67 IB	5101 5100
29-6712	5317	Head Shim Set (2/pack) .005 / .010	.82 OB .82 DF .82 IB	5375 5300 5350
29-6713	5386	Head Shim Set - (2/pack) .005 / .010	.91 IB	5390
29-6714	9510	Head Shim Set (2/pack) .005 / .010	100 Aero 100 DF 100 OB	9500 9550 9549 9575
29-6781	6576	Gasket, Carburetor (4/pack)	100 DF	9550 9549
30-6701	9515	Muffler	100 Aero	9500
30-6702	5082	Exhaust Adaptor	.82 100 DF	5300 9550 9549
30-6721	5165	Exhaust Adaptor	.67 .82 100 OB	5101 5375 9575
30-6722	5252	Pipe Adapter, 12 Degree w/Screws	.67 .82 .91 IB	5100 5350 5390
30-6723	5253	Pipe Adapter, 20 Degree w/Screws	.67 .82 .91 IB	5100 5350 5390
-	5104	piston/cylinder old style	-	-
33-6701	5113	Piston & Sleeve	.67 OB .67 IB	5101 5100
33-6702	5304	Piston & Sleeve	.82 OB .82 DF .82 IB	5375 5300 5350
33-6703	5393	Piston & Sleeve Assembly	.91 IB	5390
33-6704	9503	Piston and Sleeve	100 Aero	9500
33-6705	9553	Piston and Sleeve	100 DF 100 OB	9550 9549 9575
37-6701	5338	Drum Valve	.82 100 DF 67 .82 .91 IB	5300 9550 9549 5100 5350 5390
50-6701	5078	Lower Unit Assembly(Less Hinge) Complete	.67 .82 100 OB	5101 5375 9575
51-6701	5075	Lower Unit Halves (Matched)	.67 .82 100 OB	5101 5375 9575
53-8701	8708	Flex Shaft	.67 .82 100 OB	5101 5375 9575
53-8768	8768	Water Pick-Up Tube	.67 .82 100 OB	5101 5375 9575
53-8770	8770	Muffler Plate (5/pack)	.67 .82 100 OB	5101 5375 9575
54-6701	5155	Square Drive Collet �� (.250 sq)	.82 .91 IB	5390 5350
54-8701	5156	Square Drive Collet 3/16 (.187 sq)	.67 IB	5100
54-8714	8714	Hinge Pin	.67 .82 100 OB	5101 5375 9575
54-8771	8771	Prop Nuts, (2/pack)	.67 .82 100 OB	5101 5375 9575
54-8901	8368	Bent Water Fitting w/Nut (10-32)	.67 .82 100 OB	5101 5375 9575
54-8902	8367	Water and Pressure Fitting (10-32)	100 Aero .67 .82 100 OB .67 .82 .91 IB	9500 5101 5375 9575 5350 5100 5390
56-6721	5151	Steering Arm	.67 .82 100 OB	5101 5375 9575
56-8716	8716	Teflon Flex Shaft Tube	.67 .82 100 OB	5101 5375 9575
56-8731	8731	Prop Shock Absorber (5/pack)	.67 .82 100 OB	5101 5375 9575
57-6701	5130	PTO Shaft	.67 .82 OB	5101 5375
57-6702	9569	PTO Shaft	100 OB	9575
57-8701	8751	Prop Shaft Assembly	.67 .82 100 OB	5101 5375 9575
58-8701	8711	Hinge w/Bushings	.67 .82 100 OB	5101 5375 9575
58-8702	8712	Hinge Nut Plate	.67 .82 100 OB	5101 5375 9575
58-8752	8752	Hinge, Screws and Clamp plate	.67 .82 100 OB	5101 5375 9575
59-8765	8765	Lower Unit Maintenance Kit	.67 .82 100 OB	5101 5375 9575
80-6702	9487	K&B Carburetor (.483 Bore) Optional on other than 100 size engine	100 DF 100 OB .82 .91 IB	9550 9549 9575 5350 5390
80-8701	9445	K&B Carburetor	100 Aero	9500
80-8702	9467	K&B Carburetor	.67 .82 OB .82 DF .67 .82 IB	5101 5375 5300 5101 5350
81-6701	9468	Carburetor Body	.67 .82 OB .82 DF .67 .82 IB	5101 5375 5300 5101 5350
81-6702	9488	Carburetor Body	100 DF 100 OB .91 IB	9550 9549 9575 5390
81-8701	9446	Carburetor Body	100 Aero	9500
82-6701	9243	Carburetor Barrel	100 DF .67 .82 OB .82 DF .67 .82 IB	9550 9549 5101 5375 5300 5101 5350
82-6702	9233	Carburetor Barrel	100 OB .91 IB	9575 5390
82-8701	9263	Carburetor Barrel	100 Aero	9500
83-5622	5622	Carburetor Control Arm	.67 .82 .91 IB	5101 5350 5390
83-6701	6833	Carburetor Snap Ring	.82 DF .67 .82 100 OB	5300 5101 5375 9575
83-6703	9449	Low Speed Disk	.91 IB	5390
-	8679	Carburetor Fuel Fitting	.67 .82 100 OB .67 .82 .91 IB	5101 5375 5350 5100 5390
-	8688	Carburetor Plug (6-40 Thread)	.67 .82 100 OB	5101 5375 9575
85-6702	9248	Low Speed Disk	100 Aero	9500
85-6703	9234	Low Speed Disc	100 DF .67 .82 100 OB .82 DF .67 .82 IB	9550, 9549 5101, 5375, 9575 5300 5101, 5350
87-5665	5665	Needle Valve Assembly on carburetor type	--	--
--	9246	Carburetor Maintenance Kit	.82 OB	5375
--	9447	Carburetor Maintenance Kit	100 Aero	9500
--	9469	Carburetor Maintenance Kit	.67 .82 OB .82 DF .67 .82 .91 IB	5101 5375 5300 5101 5350 5390
--	9489	Carburetor Maintenance Kit	100 DF 100 OB	9550 9549 9575
-	9255	Remote Needle Valve Assembly	ALL	-
-	9275	Mixture Fuel Valve ( Servo Control)	ALL	-
-	5324	Maintenance Kit (Engine) use 27-5801, 27-6721, 25-6721	.82 100 DF .67 .82 .91 IB	5300 9550 9549 5100 5350 5390
-	8842	Engine Maintenance Kit	.67 .82 100 OB	5101 5375 9575
-	9523	Maintenance Kit (Engine)	100 Aero 100 DF	9500 9550 9549
99-8449	8449	Flex Shaft Lube	-	-

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©2009-1999 Model Engine Corporation of America, All rights reserved. K&B and the oval logo are Registered Trademarks of Model Engine Corp. of America Registered U.S. Patent Office

©2009-1999 Model Engine Corporation of America, All rights reserved.
K&B and the oval logo are Registered Trademarks of Model Engine Corp. of America
Registered U.S. Patent Office