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Jims
Replacement seal for 961592 JIMS primary bearing upgrade kit. 
OEM replacement reference 12052A
Jims
New

JIMS, inner primary bearing seal

#998665

Stock:Yes

Bare knuckle performance
An inner primary bearing, that supports the transmission mainshaft, was added to the aluminum primary housing with the introduction of the 1965 Panhead. Before that the tin primary housing was used and there was no option to install any aftermarket bearing support to support the maindrive gear bushing, that is the cause of leaking mainshafts, worse than with the 1965-up transmissions. 
The Overbearing 2.0 is actually a hardened replacement for the stock mainshaft lock nut (35211-36), with a precision ground roller bearing inside. When installed the Overbearing 2.0 keeps your mainshaft and main drive gear concentric, eliminating maindrive gear bushing wear which drastically reduces, if not altogether prevents mainshaft leaks. This narrower 2.0 version is now fully compatible with all regular stock and aftermarket clutch hubs.
Bare knuckle performance

Bare Knuckle Performance, Overbearing 2.0

#700953

Stock:Yes

Gardner-Westcott
Incl. primary, inspection & derby cover hardware
Gardner-Westcott

Primary mount kit, chrome allen

#507715

Stock:No

Belt Drives Ltd.
Fits backside of inner primary cover of 5-speed models. 
OEM replacement reference 8975
Belt Drives Ltd.

Mainshaft support bearing (sealed)

#507686

Stock:Yes

Belt Drives Ltd.
Fits all Belt Drive LTD 3 inch E-start motorplates
Belt Drives Ltd.

BDL retaining ring, e-start bearing

#518618

Stock:Yes

S&S
Inner race only for 9231 mainshaft support bearing in backside of inner primary cover. This inner race is a crimp-on installation onto mainshaft. 
Features an extra step on the inside to help prevent the inner race moving during high torque loads. 
OEM replacement reference 34091-08. 
Note: See JIMS 978349 for install/remove tool.
S&S

S&S, inner race only for roller bearing primary

#565145

Stock:Yes

All Balls
Inner race only of mainshaft support bearing in backside of inner primary cover. Crimp-on installation onto mainshaft. 
OEM replacement reference 34901-06. 
Note: See JIMS 978349 for install/remove tool.
All Balls

All Balls, inner race only for roller bearing

#921493

Stock:Yes

All Balls
Mainshaft support bearing in backside of inner primary cover. 
This is the outer roller bearing only, without the inner race, which is crimped onto the mainshaft. 
OEM replacement reference 9231. 
Note: See optional 921494 (34091-08) inner race for 08-up models. See optional 921493 (34091-06) inner race for earlier 06-07 Dyna; 2007 Softail; Touring models.
All Balls

All Balls, inner primary bearing

#520091

Stock:Yes

James Gaskets
1 used behind shifter lever on transmission. OEM replacement reference 37101-84, 37101-84A, 37101-84B.
James Gaskets

James oil seal, transmission shifter shaft / clutch release

#518669

Stock:Yes

All Balls
Incl. outer single row roller bearing bearing, inner race, snap-ring & seal. Mainshaft support bearing used in backside of inner primary cover. 
OEM replacement reference 9231, 12052A and 60678-85.
All Balls

All Balls, inner primary bearing & seal kit

#530633

Stock:Yes

Jims
Closed double row ball bearing kit with seal and retaining ring which replaces the OEM 9135 bearing and 12052A seal. Great for open belt drive upgrade from a open to a closed bearing, or just added reliability in combination with high performance engines. 
Works with 5-speed transmissions only. 
Note: For replacement seal see JIMS 998665
Jims

JIMS, 84-06 5-speed primary bearing upgrade kit

#961592

Stock:Yes

All Balls
Double row ball bearing, for use on straight splined shafts only
All Balls

All balls inner primary bearing & seal kit

#530511

Stock:Yes

All Balls
Inner race only for 9231 mainshaft support bearing in backside of inner primary cover. This inner race is a crimp-on installation onto mainshaft. 
OEM replacement reference 34901-08. 
Note: See JIMS 978349 for install/remove tool.
All Balls

All Balls, inner race only for roller bearing

#921494

Stock:Yes

All Balls
Supports transmission mainshaft. 
OEM replacement reference 9061, 9037. 
Also replaces open bearing 9040 in 71-78 FX models.
All Balls

All Balls, inner primary bearing (sealed)

#530634

Stock:Yes

All Balls
Mainshaft support bearing to fit backside of inner primary. 
Includes single row bearing, inner race, snap ring and oil seal.
OEM replacement reference 9135 (bearing).
All Balls

All Balls, inner primary bearing & seal kit

#530510

Stock:Yes

MCS
Mainshaft support bearing in backside of inner primary. 
OEM replacement reference 9135
MCS

MCS, bearing inner primary (open)

#520090

Stock:Yes

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