Ultima Engine Reference Guide

In an effort to make servicing your V-Twin® engine easier, Ultima have put together what we believe to be the most comprehensive list of replacement parts for the heart of your motorcycle. We hope that this reference guide serves as more than just a book, we envision this guide as more of a tool that can be used for years to come. Starting with the Evolution® family of engines this reference guide, through time, will expand to include Shovelhead®, Panhead® & other older Vintage V-Twin® engines.

Every attempt has been made to insure proper fitment of our parts for the applications listed in this guide. It is the end users responsibility to exercise good judgement in the part selection, installation & maintenance of their motor when installing parts referred to in this reference guide. Ultima has no control over the judgement of others & assumes no responsibility or liability of any nature for the failure of others to use good judgement.

Ultima Company LLC is not a representative of any other motorcycle engine manufacturer and the parts we sell are not necessarily recommended by any other motorcycle engine manufacturer.

All words used in this catalog denoting any motorcycle engine manufacturer, engine models or part numbers are intended for use as reference only. Although our replacement engines and engine parts are not original factory equipment for some manufacturers, our intention is to provide an exceptional quality replacement part that will outperform the original equipment of many OEM manufacturers. Harley-Davidson® Parts: Harley® and Harley-Davidson® and other model names of Harley® motorcycles are used as a reference only. Some H-D® part numbers are also used as reference only. We are not an authorized Harley® dealer and in no way do we have, or intend to imply any kind of business relationship with Harley-Davidson Motor Company®. Our intention is to provide products that can be used on a Harley-Davidson® motorcycle. Names and words that are registered trademarks of Harley-Davidson® Inc. Milwaukee, WI, such as Evolution®, Harley-Davidson®, Harley®, H-D®, HD®, and Softail® are not intended to imply that they are Harley-Davidson® original equipment by their use in connection with Harley-Davidson® factory part numbers.

All other trademarks, registered trademarks and brand names used in this catalog are the property of their respective holders.

Ultima is not a representative of any other motor or motorcycle manufacturer. All words used in this “Midwest Reference Guide” are intended for use as reference only. Although our motor replacement parts are not original equipment for some motor manufacturers, our intention is to provide an exceptional quality replacement part that meets, exceeds & outperforms the original equipment of many manufacturers. Names & words used in this “Midwest Reference Guide” that are registered trademarks of S&S® Cycle, Merch Performance® & Rev Tech® are not intended to imply that they are S&S® Cycle, Merch Performance® or Rev Tech® original equipment.

ULTIMA® 100, 107, 113 C.I., CE SERIES CASE

#	PART#	DESCRIPTION	OEM#
1	91-880	Ultima lifter	18523-86
2	78-670	Rear Tappet block gasket
	78-671	Front Tappet block gasket
3	91-697	Tappet blocks, 4.0” bore motors, w/hardware
4	91-775	Pushrod cover assembly
5	91-795	Pushrod set adjustable standard length
6	91-699	Rocker arm set, 1.675 ratio
7	91-666	Rocker arm shaft	17611-83
8	78-675	Pushrod O-ring upper	11157
9	78-673	Pushrod O-ring middle	11132
10	78-674	Pushrod O-ring bottom	11145
11	66-242	Exhaust stud	16715-83
12	91-569A	2.250”x1.815” Intake valve seat (2.100)
13	91-568A	1.880”x1.495” Exhaust valve seat (1.700)
14	91-747	Intake valve 2.100”x4.580”
15	91-748	Exhaust valve 1.700”x4.620”
16	93-772	Compression release
17	91-337	Conical spring seat
18	91-861	Conical valve spring std.
19	91-338	Conical spring retainer, steel
20	91-339	Ultima® keeper/lock, conical spring, 7 degree
21*	91-780	Valve guide int. std.
	91-782	Valve guide int. +.001”
	91-784	Valve guide int. +.002”
22*	91-781	Valve guide exh. std.
	91-783	Valve guide exh. +.001”
	91-785	Valve guide exh. +.002”
23	91-770	Valve seal for BT, XL & TC
24	89-519	Rkr box hardware kit (2 rocker boxes)
25	40-614	Cam cover bolt kit
26	77-109	Rkr box gasket kit (2 rocker boxes), 06’-11’, no hole
	77-111	Rkr box gasket kit (2 rocker boxes), 12’-LTR, cntr hole
27	89-541	Rkr box cover, 06’-11’, no hole
	89-544	Rkr box cover, 12’-LTR, cntr hole
28	89-545	Rkr box center section, 06’-LTR
29	89-540	Rkr box base, 06’-11’
	89-543	Rkr box base, 12’-LTR, w/hole
30	17-65	Oil pressure switch	26561-84
31	89-518	Rkr box reed valve kit (1 rocker box)	26561-84
32	41-888	Spring cap	26263-80
33	95-828	O-ring 84’-99’	11105
34	98-619	Plunger spring	26207-83
35	98-620	Check ball spring	26262-80
36	98-617	Check ball	8873
37	98-623	Plunger	26400-82
38	98-618	Idler pin	26327-68
39	98-605	Gear, return idle 10T
40	98-604	Gear, return drive 10T
41	98-607	Gear, feed idle 10T
42	98-606	Gear, feed drive 10T
43	95-753	Oil seal	26227-58
44	98-329	Clip ring	11002
45	98-334	Drive shaft	26346-70
46	98-272	Woodruff key	26348-15
47	21-185	Spigot elbow
48	98-622	Pressure plug	45830-48
49	21-123	Oil tank vent	63533-41
50	98-625	Base gasket 92 & ltr
51	98-627	Cover gasket 92 & Ltr
52	98-602	Pump base H.O. 92 & ltr pol.
53	98-603	Pump cover H.O. 92 & ltr pol.
54	41-740	Oil pump hardware kit
55	40-616	Head bolt long	16478-85
56	40-617	Head bolt short	16480-92
57	98-325	Snap ring	26348-36
58	53-528	Ignition rotor (gold)	32402-83
59	53-529	Ignition rotor screw	2611C
60	91-352	Ignition timing screws	32606-82
61	89-114	Ignition cover, Ultima® w/screws
62	95-222	Oil seal	83162-51
63	88-110	Cam cover	25268-84A
64	78-672	Gasket, cam cover	25225-70B
65	114-246	Cam for 100” & 107” Ultima® motor
	114-245	Cam for 113” Ultima® motor
66*	98-378	Cam shim .070”	25554-36
	98-375	Cam shim .055”	25551-36
	98-376	Cam shim .060”	25552-36
	98-377	Cam shim .065”	25553-36
	98-379	Cam shim .075”	25555-36
	98-380	Cam shim .080”	25556-36
67	98-372	Washer, cam thrust	25550-57
68	98-359	Gear, oil pump drive	26349-73
69	98-305	Woodruff key	23985-54
70	98-89	Pinion Gear Spacer	24703-54B
71*	98-588	Gear, pinion Red	24043-78
	98-585	Gear, pinion Orange	24040-78
	98-586	Gear, pinion White	24041-78
	98-587	Gear, pinion Yellow	24042-78
	98-589	Gear, pinion Blue	24044-78
	98-590	Gear, pinion Green	24045-78
	98-591	Gear, pinion Black	24046-78
72	98-358	Gear, oil pump driven	26345-73
73*	98-512	Breather gear std.	25313-77
	98-812	Breather gear +.030” 77 & ltr	25313-77
74*	98-80	Breather gear shim .110” 79 & ltr	25313-77A
	98-81	Breather gear shim .115” 79 & ltr	25321-79
	98-82	Breather gear shim .120” 79 & ltr	25322-79
	98-83	Breather gear shim .125” 79 & ltr	25323-79
75	98-302	Nut, pinion	24023-54
76	78-678	Head gasket, front or rear, .035
77	98-540	Dowel pin .250”x.500”
78	78-676	Base gasket front
	78-677	Base gasket rear
79	95-805	Oil seal	12026
80	98-360	Spacer, sprocket shaft 71-99 BT	24002-700
81	95-320	Bearing & race set	9028
82	300-533	Case bolt 5/16-18 x 2-3/4
83	300-534	Case bolt 5/16-18 x 3-1/2
84	300-535	Case bolt 1/4-20 x 4.0
85	98-547	6.125 Cylinder stud
86	98-490A	Timing plug	720
87	98-545	Set screw 10-24
88	98-540	Dowel pin .250”x.500”
89	98-544	1/4 pipe plug for case
90	95-429	Bearing race	24599-58B
91	300-541	Alignment pin .500” x.500” hollow
92	300-125	Case bolt 1/4-20 x 3-1/4
93	98-543	3/16 Hi pressure plug
94	300-453	Bushing, oil pump 36 & ltr
95	-	-
96	95-173	Cam bearing	9058
97	98-542	Breather seperator tube
98	98-531	Pinion bearing retaining ring	11177
99*	95-602	Pinion bearing White	24626-87
	95-603	Pinion bearing Green	24628-87
	95-604	Pinion bearing Red	24641-87
	95-605	Pinion bearing Blue	24643-87
100	98-510	Screen, crankcase	24981-70
101	98-511	Spring, crankcase 70-99 BT	24982-70
102	98-538	Screen plug
103	98-339	Sprocket shaft 81 & later
104	94-137	Woodruff key	23985-56
105	98-421	Nut, crank pin 1”-20	23969-83
106	98-650	Crankshaft halves only 4.250” Stroke 100” & 107”
	98-651	Crankshaft halves only 4.500” Stroke 113”
107	98-539	Nut, sprocket shaft 1-1/8”-16	24017-80
108	98-537	Crankpin w/nut & key
109	95-145	Rod race set for 7.44” rods
110	98-422	Nut, pinion shaft 3/4”-20	24016-80
111	98-549	Pinion Shaft .250” longer 100”, 107” & 113”
112	98-475	Woodruff key	11218
113	98-421	Nut, crank pin 1”-20	23969-83
114	95-259	Rod roller bearings & retainer cage	24385-40B
115	98-573	Connecting rods H-beam 7.440” w/bushings & races
116	95-142	Replacement wristpin bushing .792”
117	89-516	Rocker box set, 06’-11’ (2 rocker boxes)
	89-538	Rocker box set, 12’-LTR (2 rocker boxes)
118	98-554	Crank assembly 4.250” Stroke 100” & 107” Complete
	98-553	Crank assembly 4.500” Stroke 113” Complete
119	98-517	Oil pump complete H.O. 92 & ltr polished
	98-520	Oil pump complete H.O. 92 & ltr black
120	206-42	Motor case 92 & ltr 3.875” & 4.0” bore. Natural
	206-43	Motor case 92 & ltr 3.875” & 4.0” bore. Black
	206-72	Motor case 92 & ltr 3.875” & 4.0” bore. Polished
121	93-860	100” Front cylinder natural 3.875” bore
	93-861	100” Rear cylinder natural 3.875” bore
	93-864	100” Front cylinder black 3.875” bore
	93-865	100” Rear cylinder black 3.875” bore
	93-60	100” Front cylinder polished 3.875” bore
	93-61	100” Rear cylinder polished 3.875” bore
	93-858	107”, 113” Front cylinder natural 4.0” bore
	93-859	107”, 113” Rear cylinder natural 4.0” bore
	93-862	107”, 113” Front cylinder black 4.0” bore
	93-863	107”, 113” Rear cylinder black 4.0” bore
	93-58	107”, 113” Front cylinder polished 4.0” bore
	93-59	107”, 113” Rear cylinder polished 4.0” bore