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905309 Retaining ring, rear master cylinder

Fits: 83-87 Big Twin; 82-87 XL Sportster OEM: 40918-82 OEM: 905309
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Part #: 905309 | Pack: 10

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Specifications

Brand
MCS
Part Number
905309
OEM Reference
40918-82
Pack Quantity
Pack of 10
Category
Retaining Rings
VAT Rate
20%

About This Product

This internal retaining ring is a vital component for the rear master cylinder on mid-eighties Harleys. It is designed to fit 1983 to 1987 Big Twin models and 1982 to 1987 XL Sportsters. This clip is used internally to keep the master cylinder piston and seals properly seated within the bore. It serves as a direct replacement for OEM 40918-82. When rebuilding a master cylinder, the original retaining ring is often corroded or loses its spring tension, making a new one necessary for a safe and reliable brake system. These are sold in a pack of 10, which is perfect for shops that frequently service these classic braking systems. This high-quality fastener is listed under MCS part number 905309.

Manufacturer part number: 905309.

Fitment

55 models

83-87 Big Twin; 82-87 XL Sportster

Electra Glide
18 models
Brand Year Model
Harley-Davidson 1978 Electra Glide FLH 80 FLH-80
Harley-Davidson 1975–1980 Electra Glide FLH-1200
Harley-Davidson 1979–1980 Electra Glide FLH-80
Harley-Davidson 1975 Electra Glide FLHF
Harley-Davidson 1977 Electra Glide FLHS-1200
Harley-Davidson 1980 Electra Glide FLHS-80
Harley-Davidson 1984 FLH Police 80 FLH
Harley-Davidson 1979–1980 Glide Classic FLHC-80
Harley-Davidson 1981–1984 Police Electra Glide FLH-1200
Harley-Davidson 1981–1984 Police Electra Glide FLH-80
Harley-Davidson 1983 Police FLH
Harley-Davidson 1979–1980 Police FLH-1200 FLH-1200
Harley-Davidson 1980 Touring Electra Glide Classic FHL-80
Harley-Davidson 1979 Touring Electra Glide Classic FLHC-80
Harley-Davidson 1980 Touring Electra Glide FL-80
Harley-Davidson 1978–1984 Touring Electra Glide FLH-80
Harley-Davidson 1977 Touring Electra Glide Sport FLHS-1200
Harley-Davidson 1980 Touring Electra Glide Sport FLHS-80
FXR
8 models
Brand Year Model
Harley-Davidson 1985–1987 FXR Custom FXRC
Harley-Davidson 1982–1987 FXR Low Glide FXRS
Harley-Davidson 1987 FXR Low Rider FXLR
Harley-Davidson 1986–1987 FXR Sport FXRS-SP
Harley-Davidson 1982–1987 FXR Super Glide FXR
Harley-Davidson 1986 FXR Touring FXRD
Harley-Davidson 1984 FXR Touring FXRDG
Harley-Davidson 1983–1987 FXR Touring FXRT
FXR Police
1 model
Brand Year Model
Harley-Davidson 1984–1990 Police Low Rider FXRP
Police
1 model
Brand Year Model
Harley-Davidson 1975 Glide Police FL
Police Electra Glide
1 model
Brand Year Model
Harley-Davidson 1979–1980 Police FLH 80 FLHP-80
Softail
5 models
Brand Year Model
Harley-Davidson 1983–1986 FX Wide Glide FXWG
Harley-Davidson 1986–1987 Softail Custom FXSTC
Harley-Davidson 1987 Softail Heritage Classic FLSTC
Harley-Davidson 1986–1987 Softail Heritage FLST
Harley-Davidson 1984–1987 Softail Standard FXST
Sportster
7 models
Brand Year Model
Harley-Davidson 1982–1985 Sportster 1000 XLH
Harley-Davidson 1986–1987 Sportster 1100 XLH
Harley-Davidson 1987 Sportster 883 Hugger XL883HUG
Harley-Davidson 1986–1987 Sportster 883 XL883
Harley-Davidson 1982–1985 Sportster Roadster 1000 XLS
Harley-Davidson 1983–1985 Sportster Roadster 1000 XLX
Harley-Davidson 1983–1984 Sportster XR-1000
Tour Glide
1 model
Brand Year Model
Harley-Davidson 1979–1980 Tour Glide FLT
Touring
12 models
Brand Year Model
Harley-Davidson 1981–1983 Electra Glide FLH
Harley-Davidson 1981 Electra Glide FLHS
Harley-Davidson 1983–1984 Electra Glide FLHT
Harley-Davidson 1981 Glide Classic FLHC
Harley-Davidson 1983–1984 Glide Classic FLHT
Harley-Davidson 1981 Glide Classic FLTC
Harley-Davidson 1982–1984 Tour Glide Classic FLT
Harley-Davidson 1981–1984 Tour Glide FLT
Harley-Davidson 1981–1982 Touring Electra Glide Classic FLHC
Harley-Davidson 1983 Touring Electra Glide Classic FLHTC
Harley-Davidson 1984 Touring Electra Glide FLH
Harley-Davidson 1981–1984 Touring Electra Glide Sport FLHS
74CI (1200CC) OHV Twin
1 model
Brand Year Model
Harley-Davidson 1978 Electra Glide FLH

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Who are we? Leeds Harley-Davidson - Iron City Motorcycles

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