Ultima Steel + .030" Oversized Breather Gear for Big Twin Late 1977 & Later OEM 25313-77A,B

Part # 98-812

Fits: Big Twin Late 1977 & later, +.030 Oversized.

OEM 25313-77A,B

Replacement for worn or damaged breather valves, Also takes the place of OEM plastic type valve. And are used with 1977 & later style diameter pinion and cam gears and large hole steel spacing shims.

1215 Steel material holds up better than the stock plastic gears, and are less likely to damage the case. The metal screen offers greater protection over stock. Improves breathing capacity and outperforms the stock plastic unit, a must for any performance engine.


We always strive to give the best description & provide you with the best customer service. If an item needs to be returned, please call us first as many issues can be rectified with a phone call. If it is necessary to return the item, the buyer must first receive an RA number from Rivercity Cycle Parts.

  All items to be returned must be in new condition and uninstalled. Any item returned is subject to restocking fees and must be returned/shipped at the buyers expense. 



All Missouri residents will be charged a sales tax of 8.35%

Rivercity Cycle Parts
St. Louis, MO 63111
314-769-9661

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WARNING: 

Serious injury, death, and property damage can result from the improper use, control, alteration, or maintenance of motorcycles. The dealer and dealers’ customers must exercise good judgment in the use, control, alteration, part selection and installation, and maintenance, of motorcycles. Rivercity Cycle Parts has no control over the judgment of others and assumes no responsibility or liability of any nature for the failure of others to use good judgment.