External Gearbox & Internals: 3 Speed

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Key

Description

Application

Part No.

Price

Qty

GASKET SET

Part Number: 021-054

Application: BN1

Notes: Gearbox is actually a 4 speed gearbox with 1st gear locked out. Terminology of components is based on the 4 speed design. Includes 1 of each item nos. 26, 37, 41 & 47.... See more

BN1

021-054

£16.19

DOWEL BOLT, to mounting plate

Part Number: NPN

Application: BN1

BN1

NPN

NCA

NUT

Part Number: AJD8106Z

Application: BN1

BN1

AJD8106Z

£0.89

WASHER, spring

Part Number: GHF333

Application: BN1

BN1

GHF333

£0.40

BOLT, to mounting plate

Part Number: NPN

Application: BN1

BN1

NPN

NCA

NUT

Part Number: AJD8106Z

Application: BN1

BN1

AJD8106Z

£0.89

WASHER, spring

Part Number: GHF333

Application: BN1

BN1

GHF333

£0.40

COVER, front

Part Number: NPN

Application: BN1

BN1

NPN

NCA

GASKET, front cover

Part Number: NPN

Application: BN1

Notes: In gasket set

BN1

NPN

NCA

STUD, in casing

Part Number: NPN

Application: BN1

BN1

NPN

NCA

NUT

Part Number: AJD8105Z

Application: BN1

BN1

AJD8105Z

£0.40

WASHER, spring

Part Number: GHF332

Application: BN1

BN1

GHF332

£0.49

COVER, starter pinion

Part Number: 1B3346

Application: BN1

BN1

1B3346

NCA

SCREW

Part Number: NPN

Application: BN1

BN1

NPN

NCA

WASHER, spring

Part Number: GHF331

Application: BN1

BN1

GHF331

£0.40

PLUG, oil filler

Part Number: 2K5830

Application: BN1

BN1

2K5830

£8.99

PLUG, oil drain

Part Number: 2K5830

Application: BN1

BN1

2K5830

£8.99

PLUG, oil drain, magnetic

Part Number: 2K5830X

Application: BN1

Notes: Alternative

BN1

2K5830X

£19.80

COTTER PIN, clutch pin drain hole

Part Number: NPN

Application: BN1

BN1

NPN

NCA

SIDE COVER

Part Number: NPN

Application: BN1

BN1

NPN

NCA

GASKET, side cover

Part Number: NPN

Application: BN1

Notes: In gasket set

BN1

NPN

NCA

BOLT

Part Number: 320-370

Application: BN1

BN1

320-370

£2.99

WASHER, spring

Part Number: GHF332

Application: BN1

BN1

GHF332

£0.49

BODY, shifter control box

Part Number: NPN

Application: BN1

BN1

NPN

NCA

GASKET, body to side cover

Part Number: NPN

Application: BN1

Notes: In gasket set

BN1

NPN

NCA

BOLT, long

Part Number: NPN

Application: BN1

BN1

NPN

NCA

BOLT, short

Part Number: NPN

Application: BN1

BN1

NPN

NCA

STUD

Part Number: NPN

Application: BN1

BN1

NPN

NCA

NUT

Part Number: AJD8105Z

Application: BN1

BN1

AJD8105Z

£0.40

WASHER, spring

Part Number: GHF332

Application: BN1

BN1

GHF332

£0.49

GASKET, casing to overdrive adaptor plate

Part Number: NPN

Application: BN1

Notes: In gasket set

BN1

NPN

NCA

GEAR LEVER

Part Number: NPN

Application: BN1 RHD

BN1 RHD

NPN

NCA

KNOB, gearshift

Part Number: 021-398

Application: BN1

BN1

021-398

£73.10

NUT, locking

Part Number: NPN

Application: BN1

BN1

NPN

NCA

GAITER, gear lever

Part Number: 2F3087

Application: BN1

BN1

2F3087

£21.00

COVER, gear lever

Part Number: NPN

Application: BN1

BN1

NPN

NCA

PAD, gear lever packing

Part Number: 848-770

Application: BN1

Notes: Thick

BN1

848-770

£4.79

SEAT, gear lever

Part Number: NPN

Application: BN1

BN1

NPN

NCA

WASHER, sealing

Part Number: 848-765

Application: BN1

Notes: Thin

BN1

848-765

£4.19

STUD

Part Number: 031-450

Application: BN1

BN1

031-450

NCA

SPACER

Part Number: 848-775

Application: BN1

BN1

848-775

£2.89

WASHER, spring

Part Number: GHF331

Application: BN1

BN1

GHF331

£0.40

NUT

Part Number: GHF200

Application: BN1

BN1

GHF200

£0.40

LEVER, shifter socket

Part Number: NPN

Application: BN1

BN1

NPN

NCA

COTTER, lever to cross shaft

Part Number: NPN

Application: BN1

BN1

NPN

NCA

NUT

Part Number: AJD8104

Application: BN1

BN1

AJD8104

£0.59

WASHER, shakeproof

Part Number: NPN

Application: BN1

BN1

NPN

NCA

CROSS SHAFT, shifter

Part Number: NPN

Application: BN1

BN1

NPN

NCA

PLUNGER

Part Number: 848-780

Application: BN1

BN1

848-780

NCA

SPRING

Part Number: 22A75

Application: BN1

BN1

22A75

£2.29

PLUG

Part Number: 6K643

Application: BN1

BN1

6K643

NCA

WASHER, fibre

Part Number: 2K4956

Application: BN1

BN1

2K4956

£0.77

ADAPTOR ASSEMBLY, for overdrive limiting switch

Part Number: NPN

Application: BN1

Notes: Top & 2nd gear

BN1

NPN

NCA

WASHER, fibre

Part Number: NPN

Application: BN1

BN1

NPN

NCA

LEVER, operating

Part Number: NPN

Application: BN1

BN1

NPN

NCA

COTTER

Part Number: NPN

Application: BN1

BN1

NPN

NCA

NUT

Part Number: AJD8104

Application: BN1

BN1

AJD8104

£0.59

WASHER, shakeproof

Part Number: NPN

Application: BN1

BN1

NPN

NCA

SHAFT, interlocking, with collar

Part Number: NPN

Application: BN1

BN1

NPN

NCA

COLLAR

Part Number: NPN

Application: BN1

BN1

NPN

NCA

PIN, tapered

Part Number: NPN

Application: BN1

BN1

NPN

NCA

OIL SEAL

Part Number: 848-800

Application: BN1

BN1

848-800

£3.29

RING, felt

Part Number: 848-810

Application: BN1

BN1

848-810

NCA

ARM, selector

Part Number: NPN

Application: BN1

BN1

NPN

NCA

NUT

Part Number: NPN

Application: BN1

BN1

NPN

NCA

WASHER

Part Number: NPN

Application: BN1

BN1

NPN

NCA

TABWASHER

Part Number: NPN

Application: BN1

BN1

NPN

NCA

GATE, shifter

Part Number: NPN

Application: BN1

BN1

NPN

NCA

ROD, 1st & 2nd speed fork

Part Number: NPN

Application: BN1

BN1

NPN

NCA

ROD, 3rd & 4th speed fork

Part Number: NPN

Application: BN1

BN1

NPN

NCA

ROD, reverse fork

Part Number: NPN

Application: BN1

BN1

NPN

NCA

SPACER

Part Number: NPN

Application: BN1

BN1

NPN

NCA

LOCATING STRIP, long

Part Number: NPN

Application: BN1

BN1

NPN

NCA

LOCATING STRIP, short

Part Number: NPN

Application: BN1

BN1

NPN

NCA

FORK, 1st & 2nd speed

Part Number: NPN

Application: BN1

BN1

NPN

NCA

FORK, 3rd & 4th speed

Part Number: NPN

Application: BN1

BN1

NPN

NCA

FORK, reverse

Part Number: NPN

Application: BN1

BN1

NPN

NCA

100

BALL BEARING, 9/32

Part Number: BLS109

Application: BN1

BN1

BLS109

£0.70

101

SPRING, for ball

Part Number: NPN

Application: BN1

BN1

NPN

NCA

105

SHAFT, 1st motion

Part Number: 031-245

Application: BN1 to (g)5145

BN1 to (g)5145

031-245

NCA

SHAFT, 1st motion

Part Number: 031-246

Application: BN1 from (g)5146

BN1 from (g)5146

031-246

NCA

106

SYNCHRO CONE

Part Number: 031-247

Application: BN1

Notes: Must be machined to fit, see workshop manual (instructions included).

BN1

031-247

£245.60

108

NUT

Part Number: NPN

Application: BN1

BN1

NPN

NCA

109

WASHER, spring

Part Number: 1A3717

Application: BN1

BN1

1A3717

£3.79

110

BEARING, 1st motion shaft

Part Number: 128-200

Application: BN1

BN1

128-200

£32.00

111

RING, spring

Part Number: NPN

Application: BN1

BN1

NPN

NCA

112

MAINSHAFT

Part Number: NPN

Application: BN1

Notes: The mainshaft changed at (c)140204

BN1

NPN

NCA

113

PEG

Part Number: 1G3268

Application: BN1

BN1

1G3268

NCA

114

SPRING

Part Number: 2K8960

Application: BN1

BN1

2K8960

NCA

115

THRUST WASHER, front, (0.1565/0.1575)

Part Number: 11G3127

Application: BN1

BN1

11G3127

£21.20

THRUST WASHER, front, (0.1585/0.1595)

Part Number: 11G3128

Application: BN1

BN1

11G3128

£21.20

THRUST WASHER, front, (0.1605/0.1615)

Part Number: 11G3129

Application: BN1

BN1

11G3129

£21.20

116

THRUST WASHER, rear

Part Number: NPN

Application: BN1

BN1

NPN

NCA

117

BUSH, 1st motion shaft

Part Number: 031-231

Application: BN1

BN1

031-231

NCA

118

BEARING, mainshaft

Part Number: GHB158

Application: BN1

BN1

GHB158

£13.49

119

CIRCLIP

Part Number: 058956

Application: BN1

BN1

058956

£1.30

120

SPACER

Part Number: NPN

Application: BN1

Notes: This changed at (c)140204

BN1

NPN

NCA

122

CIRCLIP

Part Number: NPN

Application: BN1

BN1

NPN

NCA

123

GEAR, 1st speed

Part Number: 031-332

Application: BN1

BN1

031-332

NCA

124

SYNCHRO, 2nd gear

Part Number: 031-334

Application: BN1

BN1

031-334

NCA

125

BALL BEARING, 1/4"

Part Number: BLS108

Application: BN1

BN1

BLS108

£2.20

126

SPRING

Part Number: NPN

Application: BN1

BN1

NPN

NCA

127

GEAR, 2nd speed, with cone & adaptor

Part Number: 031-333

Application: BN1

BN1

031-333

NCA

128

SYNCHRO CONE

Part Number: 031-247

Application: BN1

Notes: Must be machined to fit, see workshop manual (instructions included).

BN1

031-247

£245.60

130

BUSH, 2nd gear

Part Number: 031-335

Application: BN1

BN1

031-335

NCA

131

BUSH, 3rd speed mainshaft gear

Part Number: 11G3029

Application: BN1

BN1

11G3029

£20.00

132

RING, interlocking

Part Number: 031-336

Application: BN1

BN1

031-336

NCA

133

GEAR, 3rd speed, with cone & adaptor

Part Number: 031-248

Application: BN1 to (g)5145

BN1 to (g)5145

031-248

NCA

GEAR, 3rd speed, with cone & adaptor

Part Number: 031-337

Application: BN1 from (g)5146

BN1 from (g)5146

031-337

NCA

134

SYNCHRO CONE

Part Number: 031-247

Application: BN1

Notes: Must be machined to fit, see workshop manual (instructions included).

BN1

031-247

£245.60

136

STRIKING DOG, 3rd & 4th

Part Number: 031-249

Application: BN1

BN1

031-249

NCA

137

SYNCHRO, 3rd & 4th

Part Number: 031-338

Application: BN1

BN1

031-338

NCA

138

BALL BEARING, 1/4"

Part Number: BLS108

Application: BN1

BN1

BLS108

£2.20

139

SPRING

Part Number: NPN

Application: BN1

BN1

NPN

NCA

140

LAYSHAFT

Part Number: 031-331

Application: BN1

BN1

031-331

£119.40

141

LAYGEAR, with bushes

Part Number: NPN

Application: BN1

Notes: The laygear changed at (g)5145

BN1

NPN

NCA

144

THRUST WASHER, front

Part Number: NPN

Application: BN1

BN1

NPN

NCA

145

THRUST WASHER, rear

Part Number: NPN

Application: BN1

BN1

NPN

NCA

146

SHAFT, reverse gear

Part Number: NPN

Application: BN1

BN1

NPN

NCA

147

SCREW

Part Number: NPN

Application: BN1

BN1

NPN

NCA

LOCK TAB

Part Number: AEC340

Application: BN1

BN1

AEC340

£2.50

149

GEAR, reverse

Part Number: 848-855

Application: BN1

BN1

848-855

NCA

BUSH

Part Number: NPN

Application: BN1

BN1

NPN

NCA

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