introductionWelcome to Midwest Motorcycle Supply’s Engine Reference Guide.In an effort to make servicing your V-Twin engine easier, the staff at MidwestMotorcycle Supply have put together what we believe to be the most comprehensivelist of replacement parts for the heart of your motorcycle. We hope that this referenceguide serves as more than just a book, we envision this guide as more of a tool thatcan be used for years to come. Starting with the Evolution family of engines thisreference guide, through time, will expand to include Shovelhead , Panhead & otherolder Vintage V-Twin engines.We would also like to take this time to thank all supporters of Midwest &Ultima products. It is because of you that we have grown to be one of the world’sleading providers of high quality aftermarket motorcycle parts & accessories. ThankYou & Ride Safe!!!Every attempt has been made to insure proper fitment of our parts for theapplications listed in this guide. It is the end users responsibility to exercise goodjudgement in the part selection, installation & maintenance of their motor wheninstalling parts referred to in this reference guide. Midwest MC Supply has no controlover the judgement of others & assumes no responsibility or liability of any nature forthe failure of others to use good judgement.Midwest Motorcycle Supply, Est. in 1971, is one of the world’s leading manufacturers and distributors for aftermarket parts and accessories for American made motorcycles. As a manufacturer we have the capability to produce many of the products youare currently purchasing from other distributors . . . at a fraction of the cost! See examples of our product line at www.ultimaproducts.com We are committed to keeping upto date on industry research and technical data, as well as legislation and salesdemographics & statistics for the benefit of our Dealers.1
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 motorcycleengine manufacturer.All words used in this catalog denoting any motorcycle engine manufacturer, enginemodels or part numbers are intended for use as reference only.Although our replacement engines and engine parts are not original factory equipmentfor some manufacturers, our intention is to provide an exceptional quality replacementpart that will outperform the original equipment of many OEM manufacturers.Harley-Davidson Parts: Harley and Harley-Davidson and other model names ofHarley motorcycles are used as a reference only. Some H-D part numbers are alsoused as reference only. We are not an authorized Harley dealer and in no way do wehave, or intend to imply any kind of business relationship with Harley-Davidson MotorCompany . 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 arenot intended to imply that they are Harley-Davidson original equipment by their use inconnection with Harley-Davidson factory part numbers.All other trademarks, registered trademarks and brand names used in this catalog arethe property of their respective holders.Ultima is not a representative of any other motor or motorcycle manufacturer. Allwords used in this “Midwest Reference Guide” are intended for use as reference only.Although our motor replacement parts are not original equipment for some motormanufacturers, our intention is to provide an exceptional quality replacement part thatmeets, exceeds & outperforms the original equipment of many manufacturers. Names& words used in this “Midwest Reference Guide” that are registered trademarks ofS&S Cycle, Merch Performance & Rev Tech are not intended to imply that theyare S&S Cycle, Merch Performance or Rev Tech original equipment.WARNINGSerious injury, death and property damage can result from the improper use, control,alteration, or maintenance of motorcycles. The dealer and dealers customers mustexercise good judgement in the use, control, alteration, part selection and installation,and maintenance of motorcycles. Ultima has no control over the judgement of othersand assumes no responsibility or liability of any nature for the failure of others to usegood judgement.COPYRIGHT ULTIMA COMPANY LLC 20092REV 04/20/09
REVTECH 88, 100, 100 (4X4), 110 8534758456446676671706957555965626861637223605456
REVTECH 88, 100, 100 (4X4), 110 95-389DESCRIPTIONOEM#Ultima lifter18523-86Rear Tappet block gasketFront Tappet block gasketTappet blocks, 4.0” bore motors, w/hardware, chromeTappet blocks, w/hardware, chromePushrod cover assemblyPushrod set adjustable stk length up to .500”Rocker arm set1.7 ratioRocker arm shaft17611-83Pushrod O-ring upper11157Pushrod O-ring middle11132Pushrod O-ring bottom11145Exhaust stud16715-83Head bolt, long16478-85Head bolt, short16480-9293-99 Rkr box assy.Ultima 2 piece solid top, Includes hdwre/gskts, chrome93-99 Rkr box assy.2 piece w/hole in center, Includes hdwre/gskts, chromeUpper gasket rubber17356-92Center gasket rubber17358-84ALower gasket rubberUmbrella valve/seal26856-89Oil pump bolt kit. Allen head 92-99Spigot tube 84-9963533-41Spigot elbow 84-99Retaining ring 84-9926348-36Retaining ring 84-9911002Woodruff key26348-15Drive shaft 84-9926346-70Oil seal 84-9926227-58Idler pin 84-9926327-68Feed, drive gear 14T 84-9926328-74Feed, idler gear 14T 84-9926326-62AReturn, idler gear 14T 84-9926317-68AReturn, drive gear 14T 84-9926315-68AGasket, oil pump cover 92-99 paper Cometic26276-92Gasket, oil pump base 92-99 paper Cometic26273-92Check ball8873Check ball spring26262-80Plunger26400-82Plunger spring26207-83Spring cap26263-80O-ring 84-9911105Oil pump, Ultima 92-99 std. vol. polished w/hdwre & gsktsOil pump, Ultima 92-99 High output polished w/hdwre & gsktsOil pump, Ultima 92-99 High output wrinkle blk w/hdwre & gsktsGasket, cam cover 93-9925225-93Gear, pinion Orange24040-78Gear, pinion White24041-78Gear, pinion Yellow24042-78Gear, pinion Red24043-78Gear, pinion Blue24044-78Gear, pinion Green24045-78Gear, pinion Black24046-78Pinion gear spacer24703-54BGear, oil pump drive 54-8926349-73Gear, breather std.25313-77AGear, breather .030”25313-77AShim, breather gear .110” 79-9925313-77AShim, breather gear .115” 79-9925321-79Shim, breather gear .120” 79-9925322-79Shim, breather gear .115” 79-9925323-79Nut, pinion gear 54-8924023-54Woodruff key 54-8923985-54Washer, cam thrust25550-57Cam shim .055” 84-9925551-36Cam shim .060” 84-9925552-36Cam shim .065” 84-9925553-36Cam shim .070” 84-9925554-36Cam shim .075” 84-9925555-36Cam shim .080” 84-9925556-36Camshaft Andrews EV27 84-99Ultima cam .625” lift (may require high lift springs)Cam cover 93-99 w/hdwre & gasket chrome25266-93AOil seal83162-51Ignition rotor (gold)32402-83Ignition rotor screw2611CIgnition timing screws32606-82Point cover domed, chrome 70-9932524-83Point cover Ultima domed, chrome 70-99 w/hdwre & gasket32524-83Gear, oil pump driven 73-95 24T26345-73Wristpin bushing, std. size24334-36Wristpin bushing, ETPKG 5PKG 5PKG 5EAKITEAEAEAEAEAEAEAEAEAEAEAEAPKG 10PKG 10EAEAEAEAKITPKG AEAEAEAEAEAEAEAEAEAEAEAEAEAEAEADISPLACEMENT 8,100,100(4X4),11088,100,100(4X4),110
REVTECH 88, 100, 100 (4X4), 110 IPTIONOEM#Pinion bearing retaining ring11177Pinion bearing 87-99 White24626-87Pinion bearing 87-99 Green24628-87Pinion bearing 87-99 Red24641-87Pinion bearing 87-99 Blue24643-87Cam bearing9058Spigot tube 84-9963533-41Oil pressure switch tall26561-84Oil pressure switch short26552-72Screen, crankcase24981-70Spring, crankcase 70-9924982-70Plug, tappet screen26263-80Bearing & race set9028Sprocket shaft spacer 71-9924002-70Oil seal12026Allen timing plug 70-99 chromeBushing, oil pump 36 & ltr24641-362 piece gasket set with silicone bead LACEMENT 00(4X4),11088,100,100(4X4),11088,100Every attempt has been made to insure proper fitment of our parts for the applications listed in this guide. It is the end usersresponsibility to exercise good judgement in the part selection, installation & maintenance of their motor when installing partsreferred to in this reference guide. Midwest MC Supply has no control over the judgement of others & assumes no responsibility orliability of any nature for the failure of others to use good judgement.25
Welcome to Midwest Motorcycle Supply’s Engine Reference Guide. In an effort to make servicing your V-Twin engine easier, the staff at Midwest Motorcycle Supply 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
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3 Editor's Note:At the time of its original printing in December 2005, the A Study of Motorcycle Oilswhite paper represented the most comprehensive study of motorcycle oils ever published.The document served to educate hundreds of thousands of readers on the complex dynamic of motorcycle oil and motorcycle operation.The paper revealed, through an exhaustive series
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