Custom Rear Master Cylinders

Rear Master Cylinder for 1978-80 XS650

OEM Type Rear Master Cylinder Assembly for 1978-80 XS 650 "Specials" with rear disc brake. Includes plunger rod.


OEM Reference #
• 2M0-25850-00-00

Part #08-4008
$79.00 USD Ea.
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Master Cylinder Rebuild Kit for 08-4008

Rebuild Kit for our 08-4008 master cylinder kit only. We cannot accept returns of this item, please do not purchase for other master cylinders.


OEM Reference #
• 1J3-W0042-50-00

Part #08-4010
$15.00 USD Kit
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Master Cylinder Reservoir Assembly

Replacement Rear Master Cylinder Reservoir Assembly with hose (OEM Type). Direct fit to Master Cylinder Assembly 08-4008. Fits: XS650 SE/SF/SG 1978-80


OEM Reference #
• 2KF-25852-50-00
• 1A1-25894-01-00
• 90501-10502-00

Part #08-4009
$34.00 USD Ea.
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Racing/Custom Rear Master Cylinder

Rear Master Cylinder assembly with reservoir for Custom or Race Bikes
Bellcrank type action to operate (bellcrank lever is slotted with 10mm. hole).
12.7mm. piston bore. 8mm. Mount holes @ 40mm. center to center.
Reservoir inlet rotates 360 degrees for mounting in any direction.
Includes 10mm. x 1.25 outlet Banjo Bolt
Part #08-4001
$65.00 USD Ea
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Racing/Custom Rear Master Cylinder

Rear Master Cylinder assembly with reservoir for Custom or Race Bikes
Bellcrank type action to operate (bellcrank lever is slotted with 8mm. hole).
12.7mm. piston bore. 6mm. threaded Mount holes @ 45mm. center to center.
Reservoir inlet rotates 340 degrees. Includes 10mm. x 1.25 outlet Banjo Bolt
Part #08-4002
$65.00 USD Ea
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Banjo Bolt M10 x1.0

Banjo Bolt - M10 x 1.0 for use on Magura master cylinder only.
Part #08-0254
$4.50 USD Ea
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Banjo Bolt M10x1.25

Banjo Bolt - M10. x 1.25 - Fits: All original XS650 and TX650 front & rear master cylinders and most Yamaha brake calipers. - Oem Ref.# 90401-10034


OEM Reference #
• 90401-10034
• 90401-10084-00

Part #08-0257
$3.50 USD Ea
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Banjo Bolt Washers - 10mm

Banjo Bolt Washers - 10mm. (Pk./2) Fits: All Brake hoses & Banjo Bolts.


OEM Reference #
• 90201-10118-00
• 306-25878-00
• 90201-10118-00

Part #08-0258
$1.50 USD Pk/2
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Hydraulic Banjo Bolt Brake Switch

Brake Switch - Hydraulic Banjo Bolt Type . 10mm. x M1.25 with 24" Lead.
Fits: All Hydraulic Brake systems on all 72-84 XS650's that use a single hose
type banjo bolt. Brake switch bolt can be fitted anywhere from the master
cylinder to the caliper and is actuated by hydraulic pressure.
Part #29-7002
$11.00 USD Ea
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Hydraulic Banjo Bolt Brake Switch

Brake Switch - Hydraulic Banjo Bolt Type . 10mm. x M1.00 with 24" Lead.
Fits: All Magura Master Cylinders, Our # 08-4000 rear master cylinder and many
European and Suzuki brake systems (10mm. X M1.00 thread). Must use a single
hose type banjo bolt. Brake switch bolt can be fitted anywhere from the master
cylinder to the caliper and is actuated by hydraulic pressure.
Part #29-7003
$11.00 USD Ea
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The name Yamaha and any other trade names or symbols belonging to each respective corporation are stated for reference purposes only. The products on this site are after market (not OEM) replacement parts and accessories only. We have no relationship to the listed companies.