BSA singles - engine parts

Condition: Used, good condition

Type with S/E bush

Made in England

Condition: N.O.S.
Fits: Burman gearboxes -1958Made in England

(Sticker not included)

Condition: N.O.S. Original Part No. 40-0720 crankpin 40-0572 roller cage 41-0183 bush 10326-0650 rollers (24)
Fits: 250 OHV unit singles 1958-1961 C15-C15S-C15T-SS80 until engine no. C15S2002
Made in England by Alpha Bearings

Condition: N.O.S.
Fits: C15-types 1961-1963 from Eng. No. 3002
Made in England by Alpha Bearings

Condition: NOS Made in England by The AMAL Carburetter Compnay

Fits: most British Singles &Twins. Settings at your request (jets + throttle slide)

condition: NOS (spots on photos are dried conservation oil)

fits B25 250cc unit single
1967 - 1971

Condition: Used, needs new big end bearing
Fits: All 441cc engines 1965-1971

Condition: NOS

6 volt

Fits: Singles -1970

Made in England

Condition: Used, very good condition

STD size dia 36,4 mm, Std bearings available

Replaces part no's 71-2284, 70-9547, 70-8028

Fits: B25 - C25 - B25 SS - B25 T + Trophy 250 TR 25W 1967 - 1972

Made in England by BSA - Triumph

Condition: NOS

Fits: 250 Singles 1970-72

Made in England by Joseph Lucas Ltd

Condiotion: Used but in very good condition

Fits: 1968 - TR25 W + B25 - C25 - B40 - B44 - B50

Made in England by BSA

57-3850 Camplate 57-2588 Selctor spindle 57-2689 selector forks (2x) 57-2661 Mainshaft 57-3872 High gear 22T…

Condition: N.O.S.
Fits: All OHV + S.V. singles 1937-1959 (except Gold Star)Made in England by Alpha Bearings

condition: NOS
Made in England by BSAfits: CCM 4-sp 1973-1976
BSA B44 B50T B50SS B50MX Triumph T25 1968-1971

Condition: New stock

Fits: will fit most 250 Unit singles 1968 - 1972

Made in England

condition: NOS
Made by fits B25 - B50 - TR25W 1968-
CCM 4sp -1977

Condition: N.O.S.
Fits: C15-SS80-B40-B44-B50-DBD34GS 1956-1972Made in England by Terry's

(Sticker not included)

Condition: used
Journal size 36.3 mm = 0.10 inch U.S.
Bearings available
Will fit unit 250 motors 1967-
OPN 40-1024

Condition: Used
1968 -
Casting no: PBM40930
Made in England

condition: NOS
Made by BSAfits plunger type gearbox

Condition: N.O.S.
Fits: B31-B32-M20-M21 Plunger types only
5/8" x 1/4" (520) chain only
Made in England

condition: NOS Made in England
Bush = nr. 40-3262fits BSA unit singles B25-C25-B44 Victor (enduro) 1967

Condition: NOS

C.R 10:1 .040" oversize (68 mm)

Fits all Unit Singles 1967 - 1973

Made by Hepolite

Condition: Overhauled by proffesional company. New small end bush. Bottom end honed to correct diameter.
Fits all BSA & Triumph 250 OHV Unit singles 1967 - 1973

Condition: Used & welded. needs polishing

Casting nr 71-7026

Fits: B25 SS + T B50 T - SS + MX Victor 1971 -

Made in England

Condition: NOS Made in England
Fits ; BSA + Triumph Unit-singles 1967-

Condition: N.O.S.
Consists of: 4 driving plates + 5 driven plates + 4 springs + 1 cover gasket
Fits: Unit singles 1971-Made in England

condition: NOS Made in Italy by GPM
CR 9.5:1 Sizes 69 mm or 69.5 mmfits: 250 unit singles 1967-1972

Condition: Slightly used

Big-end bearings available STD + Over sizes

Fits: 250 Unit Singles 1967 - type with Gudgeon pin bush

will fit later types - 1972 (70-9911)

Made in England

Condition: NOS
1967 - 1972
oversize 68.6 m
​Made in Italy

condition: NOS
fits: 250 unit singles 1967-

Condition: New stock
Fits 250 Unit singles 1967-
Made in England

Condiotion: NOS

Fits: 1971- B25SS - B25T - Triumph T 25 SS + T 25 T

Also B25 - C25 1967-

Made in England by BSA - Triumph

Condition: N.O.S.
Fits: 250 Unit singles with 5/8" spindle (c/w needle bearing)Made in England

Condition: N.O.S.
Fits: BSA Unit singles with 3/4" shaft
Made in England

Condition: N.O.S.

Fits Unit Singles 1967 with QD rear wheel

Made in England

Condition: N.O.S.
Consists of: 5 driving plates + 5 driven plates + 4 springs + 1 cover gasket
Fits: Unit singles 1971-Made in England

(Sticker not included)

Condition: N.O.S.
Fits: All unit motors 1966-1972
Made in England by BSA-Triumph

Condition: N.O.S. Made in Italy by GPM
Fits all: Triumph unit singles 1967-1972 & 250 BSA unit singles 1967-1972
Compr. Ratio: 9.5:1​ Std size = 67 mm.

Condition: Used, overhauled
Ground to .020" US c/w new bearings
Fits: 250 Singles 1967-1971

Condition: Used but very good condition Engine Number : XC9661TR25W Fits BSA + Triumph Unit Singles 250 cc 1968-1972

All bearing have a tight fit.

Condition: Used
Fits: B25 Unit singles 1971-
Also fits: Triumph T25SS, T25T 1971- (castingnr: 71-1825)

Condition: Used
M33 pre-unit singles
1949-1960
Lenght 238 mm

Condition: N.O.S.
Fits: 350cc OHV single B31 B32 1946-1959
Dia: 71mm + 0.020" o.s.

Condition: N.O.S.
Fits: 348cc OHV Gold Star 1946-1957
Std dia: 71mm
Oversizes dia: 71.5mm and 72mm

Condition: N.O.S.
Fits: 350 OHV pre-unit singles 1950-1960
Made in England

Condition: N.O.S.
Fits: Pre-unit gearboxes 1954-1963 Singles & Twins Except DBD34 Gold Star
Made in England

Condition: New stock

Fits all Pre-unit Singles 1937 - 1960 Execpt DBD34GS

Condition: N.O.S.
Fits: 500 OHV pre-unit singles 1946 - 1958Made in England by Alpha Bearings

Condition: N.O.S.
Fits: 500 OHV Pre-unit singles 1946-1960
Made in England by Alpha Bearings

Condition: N.O.S.
Oversize piston ring set 85mm + 1mm
Fits: 1952-1957 Gold StarMade in England

(Sticker not included)

Condition: NOS Casting nr. 41-234

Fits 1960 -

Size S.E. Bush dia 11/16" bottom end 45 mm bush

Made in England

Condition: NOS

Fits 350 CC unit motors 1960 - 1963

Made in England by Alpha Bearings Ltd

(Sticker not included)

Condition: Used
1960 - 1970

Condition: NOS
B40 - 350 Star - SS90 needle bearing type gudgeon pin bush = 3/4" inner dia
1960 - 1964 Casting nr, 41-234

Condition: N.O.S.
Conrod c/w bushes
Fits: 350 unit singles 1964-1967
Casting nr: 41-234 Gudgeon pin bush = 3/4" inner dia. Bottom bush is 45 mm inner dia.

Condition: NOS
1960 - 1964
Genuine BSA part

Condition: Used, good condition (no play on conrod)
Fits: 350 Unit singles 1962-

Condition: N.O.S.
Fits: 350 Unit singles B40 1960-
Std size 79mm
Casting nr 41-251 BSA
Compr. ratio 8:1Made in England by BSA

Condition: New stock
Piston cplt for 350 unit singles 1960-1968
C.R. 8:1
Std size: 79mm (41-0250)
Oversize .020": 79.5mm (41-0252)
Oversize .040": 80mm (41-0254)
Oversize .060": 80.5mm (41-0254-1)

condition: used, damage welded

fits BSA & Triumph unit singles Replaces: 70-9427

condition: used, dented at footrest

fits BSA & Triumph unit singles Replaces: 70-9427

Condition: N.O.S.
Fits: All unit singles with 4 driving plates
Includes 4 rivets + 8 rubbersMade in England

Condition: N.O.S.
Consists of: 4 driving plates + 5 driven plates + 4 heavy duty springs + 1 cover gasket
Fits: unit singles -1971Made in England

(Sticker not included)

condition: NOS
made in ItalyStd size = 79 mm + .020" oversize is 79.5 mm +.040"= 80 mm + .060" = 80.5 mm

fits 350 - 440cc singles Width: piston rings 1/16" Oil ring 1/8"

condition: used, in good condition
Made in England by BSAcasting no. 40-206

Condition: Used, but very good

Dia Gudgeon pin 3/4" bottom end 45 mm

Casting nr 41-550

Condition: N.O.S.
Large oversize piston : 82.5mm (3.5mm O.S)
Fits: 441CC Victor GP MX + Enduro 1965-
Alloy barrel only
Made in Italy by GPM

condition: new stock
Made in Englandfits B44 Victor special and enduro 1968-1971

Condition: NOS

Fits 1965 - 66 round barrel type

Made in England

Condition: Used
Conrod & Crankpin assy. In good condition.
Casting NR: 41-0550
Fits: B44 Victor Enduro + MX 1965-1968

Condition: N.O.S.
Fits: All 440 singles 1965-1971
C.R. 9:1
Piston nr: 41/575Made in England

Condition: N.O.S.
Fits: CCM TR350 Trials 1979-1980 + BSA Victor 440cc 1965-1968 (for Conrod nr. 41-550)Made in England by Alpha Bearings

condition: slightly used, original nice condition, ready to fit (No play)
Made in England by BSA Fits: 440 cc Singles 1965-1970 Victor MX + Enduro (Round + Square barrel-types

condition: slightly used, original nice condition, ready to fit (No play)
Made in England by BSA Fits: 440 cc Singles 1965-1970 Victor MX + Enduro (Round + Square barrel-types

condition: New Stock
Made in Australia by JP Pistonsfits: 441cc singles + CCM 350 trails
1965-
C.R. 9.4:1

Condition: Used Very nice condition
Fits: B44 Victor with 3/4" inner dia camshaft bushes + B25SS-B25T -B50SS-B50T models 1971-1973

condition: NOS
Made In England by CCM-BoltonChoice of : 20T 21T 22T 24T

for Trails - MX purpose

Condition: Used
Fits: 440cc unit singles B44G-B44VE-B44VR-B44VS 1965-1970

Condition: NOS

Fits BSA 500 Unit Motors 1971 - 1974 CCM 500 MX 1973-1979

AE Hepolite nr 19289

Made in England by AE-Hepolite

condition: NOS
Made in England by BSAmarked 'O'

fits:
CCM 500-600MX 2v
B50T-SS-MX 1971-

Condition: N.O.S.
Fits: All unit singles with 5+5 clutch platesMade in England

Condition: New Stock

UNC 1/4" + 2 x 2BA Replaces part nos 14-6610 - 11 -12 -

Fits: B50 MX Victor B50 T - B50 SS + B25 SS - B25 T + Triumph T25 T - T25 SS 1971 - 1973

Made in England

condition: NOS
Made in England by BSAfits: BSA B50 Trail + SS (UK+US) 1971-1973

Condition: N.O.S.
Genuine hepolite piston cplt 0.50mm
Oversize 84.5mm
C.R: 10:1
Made in England

Condition: N.O.S.
Fits: Victor 500MX B50T-B50SS + DBD34 Gold Star + CCM 500MX
Large oversize: 85.5mm (+.060")
Made in Italy by GPM

condition: new stock
Made in Englandfits B50T - B50SS - B50MX 1971-1973

Condition: N.O.S. From dismantled new CCM 500MX engine
Fits: BSA B25-B50 Victor 1971- and CCM 500-600 1974-
Made in England

Condition: New stock
Fits: all BSA/Triumph unit singles 5 plate clutches 1963-
Made in England

condition: NOS
Made in England by BSAfits: B50T-SS-MX 1971-
CCM 500-600 2v 1973-priced per pair

Condition: N.O.S.
Fits: 1972 B50 with stepped shaft
Made in England

Condition: N.O.S. Made in Emgland by BSA-Triumph
Fits: All 500 unit singles 1971- 1974 + CCM 500MX 2-Valve 1973-1980

Condition: N.O.S.

Fits: BSA 500 Unit singles 1971 + CCM 500 2V 1973-

Made in England by AE Hepolite

Condition: N.O.S.
Fits: 500cc Unit singles 1971 + CCM 500MX 1973-1974Made in England for BSA

Condition: N.O.S.
Fits: Type D1 Bantam 123CC 1947-1963
Std size: 52mm diameter
Oversize 0.010": 52.3mm
Made in England

Condition: Slightly used
Fits: 125cc Two-stroke 1947-1963
Dia: 53.3mm

Condition: N.O.S.
2 Std piston rings 57mm x 3/32"
Fits: Bantam Major 150cc 1954-1958
Made in England by WellworthyLetterpost possible

Condition: N.O.S.
Std rings for: 173cc: D10 - D14-4 - D175, 1967-1970
Dia: 61.529mm x 1/16"
Letterpost possible
Made in England

Condition: NOS Made in England by tranco Valves in Silicon Chrom

Fits : 1939 - 1957

condition: NOS
pair of inlet & exhaust valvesfits: BSA C10, C10L 250 1939-1957

Condition: NOS
1937 - 1957
Made in England by Tranco Valves Priced and sold per pair. Including valve guides (not shown in picture)

Condition: NOS Made in Italy by Surflex

Fits: 250 SV + OVH 1954 - 1958 Consust of: 2 Bonded plates 1 Steel plate 1mm 1 Steel plate 1.6 mm

Condition: N.O.S.
Set of 5 plates
Fits: BSA singles & twins M20, M21, A7, A10 S.Arm, M33, B33, B34, C10, C11
Made in Italy by Surflex

Condition: N.O.S.
Fits: Light 4-speed gearbox of 250 SV + 250 OHV -1957
K.S. Spindle dia 3/4"
Made in England

Condition: NOS

Fits 250 Pre-Unit Singles 1939 - 1958

Made in England by Alpha Bearings

Condition: N.O.S.
Fits: 250cc OHV 1954-1957

Condition: N.O.S.
Fits: 250-350 Unit singles 1958-1966C15 C15S C15T
Outer dia: 15/16" + 1 3/8"
Width: 2 7/32"Made in England by BSA

Condition: NOS Made in England by BSA-Brimingham
Fts 250-350 Unit engines : C15 Star -Sport Star - B 25 - C25 - B40 - B40 - B40WD - B40 Enduro Star -B44- B44 Enduro Star 1958-

Condition: NOS

Fits C15 T + S 1959 - 1961

Casting nr 40 - 48

Big-end dia : 1 3/8" + 15/16"

Made in England

condition: NOS, Made in England
fits: 250 unit singles C15S + C15T 1959-1961

Condition: NOS

Fits C15, C15 Star, C15 Sportsman, 250 Star + SS80 Sports Star

1959 - 1966

Casting nr 40-447

Made in England by BSA

Condition: N.O.S.
Fits: 250 OHV Singles 1959-1966 C15 C15S SS80
Diameter: 67.5mm
C.R. 10:1Made in England by BSA

(Sticker not included)

condition: NOS, Made in England by Alpha Bearings
fits: 250 OHV singles 1959 - 1966 C15 C15T C15S + SS80

condition: NOS

fits 250 unit singles
1958 - 1961

Condition: N.O.S.
Fits:250- 350 Unit engines 1961-1965
Outerdia: 1.5" + 1"
Width: 2 7/32"Made in England by BSA

Condition: N.O.S.
Fits all 250-350-440-500 BSA + Triumph singles 1958-1980 (will take 5+5 clutch plates)Made in England

Condition: N.O.S.
Fits: 250-350 Unit singles 1958-1967
(For 428 chain)
Made in England

condition: NOS
Made in England by BSAfits 250 singles OHV 1959 - 1962

Supplied c/w big-end pin

Condition: N.O.S.
Fits: 250 Singles 1958- (67mm)
nr. 17897AMade in England by Hepolite AE

(Sticker not included)

Condition: N.O.S.
Fits: All unit singles with 5-plate clutch 1971-Made in England

condition: NOS
Made in Englandfits A + B types with 6-spring clutch
A7 - A10 1957-
B33 - DBD34 1957-