VintageCB750 Supplying CB Riders Since 2010

About Us Why Us? Reviews Shipping Info Returns Contact Us
Wish Lists
0 My Cart

Your cart is currently empty.

Browse all parts
Total (USD): $0.00
View cart
Menu
Search
Wish
Cart 0
My motorcycle Choose your Honda CB model

Search parts

Searching all Honda CB parts

Example: brake pads or oil filter.

1981 Honda CB750F Master Cylinder Rebuild Parts

Master-cylinder choices for the 1981 CB750F separate front and rear rebuild kits from reservoir repairs. The front reservoir set is the two-screw-cover type, while the listed round cap with diaphragm serves the rear. Universal assemblies require their own mounting and connection checks.

Close ×
Your saved bike Choose your Honda CB model

Shop By Category

Most orders ship same or next business day Fitment guarantee Listed for your exact model and year? We’ll make it right if it doesn’t fit as described. Mechanic-backed support Ask our team for help choosing the right Honda CB part.
Currently viewing Master Cylinder & Rebuild Parts

Honda motorcycle parts

Choose your model and year to see parts listed for your bike.

Honda CB900 CB750 CB650 CB450 master cylinder reservoir rebuild kit

Honda CB Master Cylinder Reservoir Rebuild Kit

$54.95 USD
29-0051
Rebuild your master cylinder reservoir with this Front Master Cylinder Reservoir Rebuild Kit, 2-screw cover type. Includes plastic reservoir, reservoir cap, diaphragm, O-ring, and...
Honda CB750F CB750C CB700SC front master cylinder kit 45530-MA5-671

Honda CB Front Master Cylinder Rebuild Kit ~ Replaces 45530-MA5-671

$24.95 USD
08-0209
Refresh your DOHC CB's front master cylinder with this Front Master Cylinder Rebuild Kit, replacing OEM #45530-MA5-671. Fits the 1981-82 CB750F/C, CB750SC/CB700SC Nighthawk, CB900F/CB900C,...
Sold out
Honda CB900 CB750 CB650 front master cylinder assembly

Honda CB900 / CB750 / CB650 Front Master Cylinder Assembly

$109.95 USD
08-0457
Fit a blacked-out front master cylinder to your late-'70s or early-'80s DOHC CB with this Front Brake Master Cylinder Assembly. Usable on any single...
Honda CB750 CB550 CB400F master cylinder diaphragm 45520-300-000

Honda CB Master Cylinder Reservoir Diaphragm ~ Replaces 45520-300-000

$10.95 USD
08-0282
Replace a hardened or torn master cylinder diaphragm with this Master Cylinder Reservoir Diaphragm, replacing OEM #45520-300-000. Exceptional range of applications, fits FRONT master...
Honda CB750F CB900 CB1000C rear master cylinder kit 43520-461-771

Honda CB Rear Master Cylinder Rebuild Kit ~ Replaces 43520-461-771

$37.95 USD
08-0212
Rebuild your DOHC CB's rear master cylinder with this Rear Master Cylinder Rebuild Kit, replacing OEM #43520-461-771. Fits the 1981-82 CB750F Supersport, CB900 family,...
Honda CB1000 CB900 master cylinder reservoir cap plastic o-ring 45521-MJ6-006

Honda CB Master Cylinder Reservoir Cap Plastic O-Ring ~ Replaces 45521-MJ6-006

$4.95 USD
29-0062
Replace your master cylinder cap O-ring with this Master Cylinder Reservoir Cap Plastic O-Ring, replacing OEM #45521-MJ6-006.Key Features• Master cylinder reservoir cap O-ring• Plastic•...
Honda CB1100 CB1000 CB900 master cylinder rubber boot 45522-422-000

Honda CB Master Cylinder Rubber Boot ~ Replaces 45522-422-000

$8.95 USD
73-0094
Replace your master cylinder rubber boot with this Master Cylinder Rubber Boot, replacing OEM #45522-422-000.Key Features• Master cylinder rubber boot• Replaces OEM #45522-422-000• Honda...
Honda CB1100 CB1000 CB900 master cylinder reservoir cap 45513-341-771

Honda CB Master Cylinder Reservoir Cap ~ Replaces 45513-341-771

$39.95 USD
29-0054
Restore your master cylinder cap with this Master Cylinder Cap with Plastic O-Ring, replacing OEM #45513-341-771. This original style was discontinued long ago by...
Honda CB750 CB700SC CB650 master cylinder diaphragm 45520-MA5-671

Honda CB Front Master Cylinder Reservoir Diaphragm ~ Replaces 45520-MA5-671

$11.50 USD
08-0284
Replace the diaphragm on your later DOHC CB's front master cylinder reservoir with this Front Master Cylinder Reservoir Diaphragm, replacing OEM #45520-MA5-671 / #45520-MA5-672...
Honda CB650 CB750 CB900 replacement brake lever for master cylinder 08-0457

Replacement Brake Lever for Master Cylinder 08-0457

$9.95 USD
08-0018
Replace the brake lever specifically on the #08-0457 Master Cylinder (sold separately) with this Brake Lever.Important: this lever is ONLY for Master Cylinder #08-0457,...
Magura universal front master cylinder assembly 16mm

Magura Universal Front Master Cylinder Assembly ~ 16mm

$259.00 USD
08-0251
Step up to dual-disk compatibility with this Magura Universal Front Brake Master Cylinder, featuring a 16mm piston diameter recommended for dual-disk brake systems. Threaded...
Honda CB1100 CB900 CB750 chrome master cylinder cover 45513-MA5-671

Honda CB Chrome Master Cylinder Cover ~ Replaces 45513-MA5-671

$22.95 USD
29-0071
Add chrome to your master cylinder with this Chrome Master Cylinder Cover, 2-screw type, replacing OEM #45513-MA5-671 / #45513-413-941.Key Features• Chrome master cylinder cover•...
Honda CB1100F CB900F CB750F rear brake light switch spring 35357-KE4-730

1979-83 Honda CB1100F / CB900F / CB750F Rear Brake Light Switch Spring ~ Replaces 35357-KE4-730

$5.80 USD
73-1007
Replace your rear brake stop switch spring with this Rear Brake Light Stop Switch Spring. This is the spring that attaches to the rear...
Honda CB1100 CB1000 CB900 master cylinder reservoir cap 43513-MJ6-006

Honda CB Master Cylinder Reservoir Cap ~ Replaces 43513-MJ6-006

$23.45 USD
29-0080
Replace your master cylinder reservoir cap with this Master Cylinder Reservoir Cap with Diaphragm, round OEM thread-on type. Cap replaces OEM #43513-MJ6-006, diaphragm replaces...
compare

1981 Honda CB750F · Master Cylinders & Rebuild Parts Master-cylinder buying guide

Choose between cylinder service, reservoir repair and a replacement assembly

Front and rear rebuild kits address different master cylinders. Reservoir components and a universal front assembly are separate repair choices. Identify the assembly that is actually fitted before selecting the parts or planning a custom replacement.

Parts to consider

Honda CB Front Master Cylinder Rebuild Kit ~ Replaces 45530-MA5-671 Front master-cylinder rebuild kitKit 08-0209 replaces reference 45530-MA5-671 and explicitly lists the 1981–82 CB750F front brake master cylinder.View part Honda CB Rear Master Cylinder Rebuild Kit ~ Replaces 43520-461-771 Rear master-cylinder rebuild kitKit 08-0212 replaces reference 43520-461-771 and services one compatible rear master cylinder, including the listed 1981–82 CB750F.View part Honda CB Master Cylinder Reservoir Rebuild Kit Two-screw front reservoir setReservoir kit 29-0051 is for the two-screw-cover type and lists the 1981–82 CB750F. Choose it for reservoir-component work rather than by the cylinder-kit reference.View part

Related parts: Front reservoir diaphragm · Round cap with diaphragm · Magura universal front assembly

Keep reservoir and cylinder-kit contents separate

The front and rear cylinder-kit listings identify their applications and references without itemizing their internal parts. Confirm a specific internal component requirement before ordering; the reservoir set is a separately described purchase.

Plan the universal assembly's connections

The Magura 08-0251 has a 16 mm piston and is recommended by its supplier for dual-disc systems. It has a threaded brake-light-switch port. The switch, banjo bolt and banjo washer are not included, so account for the actual connection parts needed.

Common questions

Should I add a separate diaphragm to the front reservoir kit?

Kit 29-0051 already includes a plastic reservoir, cap, diaphragm, O-ring and screw. The separately sold front diaphragm 08-0284, referenced to 45520-MA5-671 and 45520-MA5-672, offers a narrower purchase when only that component is needed. Avoid automatically ordering both for the same reservoir.

Can the round cap replace the two-screw front cover?

No. Cap 29-0080 is the round thread-on type, and its CB750F 1979–82 application is for the rear master cylinder. It supplies the cap referenced to 43513-MJ6-006 and diaphragm 45520-300-000. Match the installed reservoir rather than selecting it from the general master-cylinder title.

Can a mirror mount directly to the Magura master cylinder?

The Magura assembly has no mirror mount. If the mirror needs to mount at that position, plan a separate compatible clamp-style mount and check the available handlebar space before choosing the assembly.

Not sure which part you need?

Send your model and year, plus photos of your existing part and any changes to the original setup.

Ask a fitment question
Parts categories for 1981 Honda CB750F

Your cart

×