Old OEM Number	OEM Number	Aftermarket	Use	Use	Use	Use	Use	Use

	8905	Torrington B2610	77 and Later Big Twin Mainshaft Needle Rollers
	8906	Torrington GB2610	82 and Later Big Twin Mainshaft Needle Rollers
	35961-52	Torrington B1212	76 and Later Big Twin Countershaft Needle Rollers
	9058	Torrington B138	58 and Later Big Twin Crankcase Cam Gear
2289-39	9075		45 '39 and Later Right Side Countershaft Gear .750 x .114 (24)	-	-	-	-	-
2289-36	9084		45 '41 Clutch Gear .615 x .125 (40)	Twins '36 61”, '37 and later 61”, 74”, 80” Countershaft Gear .615 x .125 (44)	Twins '36 61”, '37 and Later 61”, 80” Main Drive Gear .615 x .125 (44)	-	-	-
2289-36A	-		1936 4-speed 74”, 80” Countershaft Gear .609375(39/64) x .0625 (78)	-	-	-	-	-
2306-32	9090		.625 (5/8) x .152	-	-	-	-	-
9101	9101		BT Crankpin Roller Std. .1875 x 329 (36)	-	-	-	-	-
-	9150		Sportster '54 to '65 Crankpin Roller Std. .1875 x .480 (17)	-	-	-	-	-
9171	9171		BT Crankpin Roller Std. .1875 x .662 (18)	-	-	-	-	-
2289-25	9220		45 Wheel Roller .250 x .490 (26)	BT Right Case Roller Std. .250 x .490 (28)	BT Wheel Roller .250 x .490 (26)	BT '30 to '57 Left Case Roller .250 x .490 (24)	-	-
305-29	9241		45 '29 and Later Single-End Connecting Rod Std. .250 x .550 (12)	45 '37 to '52 Right Case Roller Std. .250 x .550 (12)	-	-	-	-
306-26	9261		BT '37 to Early '53 61”, 74”, 80” Right Case Roller Std. .250 x .600 (12)	21” Single Connecting Rod Std. .600 x .250 (12)	21” and 30.50” Single Left Case Std. .600 x .250” (12)	-	-	-
305-15	9281		Twins '15 to '39 61”, 74”, 80” – Single-End Connecting Rod Std. .726 x .250 (12)	30.50” Single – Connecting Rod .726 x .250 (12)	Twins '21 to 36 61”, 74”, 80” (except 61” OHV) – Clutch Sprocket Std. .726 x .250 (12)	-	-	-
2289-17	9301		45 '29 and Later Forked-End Connecting Rod Std. .250 x .270 (24)	45 '53 to '73 Right Case Roller Std. .250 x .270 (24)	BT Late '53 to Early '54 Right Case Roller .250 x .270 (12)	Singles and 45 Twins '26 to '34 – Clutch Sprocket Std. .270 X .250 (16)	Twins '31 and Earlier 61”, 74” - Countershaft Gear – Std. Transmission .270 x .250 (24)	Twins '24 and Earlier 61”, 74” - Main Drive Gear Std. .270 x .250 (20)
304-15	9321		1929 and Later 45 Left Case Roller Std. .250 x .360 (24)	BT Late '54 Right Case Roller .250 x .360 (12)	Twins '15 to '39 61”, 74”, 80” – Forked-End Connecting Rod Std. .360 x .250 (24)	Twins '29 and Earlier 61”, 74” – Left Case Std. .360 x .250 (24)	Twins '30 to '36 74”, 80” - Front Brake Hub Std. .360 x .250 (24)	Sidecar '30 to '36, excep LE Model – Brake Hub Std. .360 x .250 (20)
305-40	9341		BT '40 and Later 61”, 74”, 80” – Single-End Connecting Rod Std. .694 x .1875 (18)	-	-	-	-	-
-	9421		BT '55 to '57 Right Case Roller Std. .1875 x .800 (13)	Sportster '54 to '78 Right Case Roller Std. .1875 x .800 (13)	-	-	-	-
-	9441		Sportster '54 to '65 Crankpin Roller Std. .1875 x .294 (34)	-	-	-	-	-
304-40	9361		BT '40 and Later 61”, 74”, 80” – Forked-End Connecting Rod Std. .344 x .1875 (36)	-	-	-	-	-
-	24362-54		Sportster '54 to '65 Retainer Crankpin Roller Rear (2)	-	-	-	-	-
-	24364-54		Sportster '54 to '65 Retainer Crankpin Roller Front (2)	-	-	-	-	-
301-29	24365-29		45 Retainer Crankpin Roller (4)	-	-	-	-	-
301-51	24366-51		BT Retainer Crankpin Roller (4)	-	-	-	-	-
415-37	24645-37		45 Retainer Right Case Roller (2)	-	-	-	-	-
415-36	24646-36		BT '37 to '53 Retainer Right Case Roller (2)	-	-	-	-	-
-	24646-54		BT '54 to '57 Retainer Right Case Roller (2)	-	-	-	-	-
-	24718-54		Sportster '54 to '78 Retainer Right Case Roller (2)	-	-	-	-	-
417-29	24720-29		45 Retainer Left Case Roller (2)	-	-	-	-	-
417-30	24721-30		45 Retainer Wheel Small (2)	BT '30 to '57 Retainer Left Case Roller (2)	BT Retainer Wheel Front and Rear (2)	-	-	-
3967-35	43578-35		45 Retainer Wheel Brakeside	BT '58 to '86 Retainer Right Case Roller (2)	BT Retainer Wheel Brakeside	-	-	-