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.

1983 Honda CB450SC Nighthawk Master Cylinder Repair Planning

A 1983 Honda CB450SC Nighthawk master-cylinder order should distinguish the fitted assembly from a proposed custom replacement. The reservoir package itemizes its components, the internal kit names its Honda application, and universal 13 mm assemblies have different included fittings. Identify that branch of the repair before combining products.

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 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...
Universal Honda-type front master cylinder assembly 13mm

Universal Honda-Type Front Master Cylinder Assembly ~ 13mm

$84.95 USD
08-0262
Upgrade to a universal front master cylinder assembly with this Honda-type unit. Complete with lever, banjo bolt, banjo bolt washers, and brake light switch,...
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 CB750K CB1000 CB650 front master cylinder kit 45530-MA4-671

Honda CB Front Master Cylinder Rebuild Kit ~ Replaces 45530-MA4-671

$29.95 USD
08-0201
Rebuild your later-model CB's front master cylinder with this Front Master Cylinder Rebuild Kit, replacing OEM #45530-MA4-671. Fits the CB750K (1981-82), CB1000, CB900F (2002-07),...
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•...
Sold out
Honda CB750 CB650 CB550 replacement brake lever for master cylinder

Honda CB Replacement Brake Lever for Master Cylinder 08-0262

$9.95 USD
08-0430
Replace the brake lever on the #08-0262 Master Cylinder Assembly specifically with this Brake Lever. Designed for this particular master cylinder.Key Features• Replacement brake...
Magura universal front master cylinder assembly 13mm

Magura Universal Front Master Cylinder Assembly ~ 13mm

$259.00 USD
08-0250
Build a custom front brake setup with this Magura Universal Front Brake Master Cylinder. Features a 13mm piston diameter, 12mm stroke, and a threaded...
compare

1983 Honda CB450SC Nighthawk · Master Cylinder Service Buying guide

Separate retained-assembly service from a custom replacement

The two-screw reservoir package includes reservoir, cap, diaphragm, O-ring and screw. Internal service uses the 45530-MA4-671 application. A Magura replacement has 13 mm bore and 12 mm stroke for its recommended single-disc use; verify the actual system’s hydraulic requirements and separate connection items.

Parts to consider

Honda CB Master Cylinder Reservoir Rebuild Kit Two-screw reservoir renewal packageReservoir, cap, diaphragm, O-ring and screw are listed for the compatible two-screw cover arrangement.View part Honda CB Front Master Cylinder Rebuild Kit ~ Replaces 45530-MA4-671 Service kit for the listed original applicationIdentifies Honda 45530-MA4-671 and lists the 1983 CB450SC front brake master cylinder.View part Magura Universal Front Master Cylinder Assembly ~ 13mm Magura custom 13 mm master cylinder13 mm bore and 12 mm stroke, recommended for single-disc systems; switch, banjo hardware and mirror mounting need separate planning.View part

Related parts: Honda-type assembly with stated fittings · Reservoir diaphragm available separately · Protective actuating-end boot

Compare package contents against the chosen repair

The reservoir package gives a specific contents list. The internal kit does not enumerate every supplied piece, so confirm a required component rather than assuming it appears in that kit. A separate diaphragm and actuating-end boot are also listed, each for its own service location.

Check the custom assembly’s complete connection plan

The Honda-type 13 mm assembly includes lever, banjo bolt, washers and brake-light switch, plus a right-hand-threaded mirror mount. Magura instead sells the connection items separately and has no mirror mount. Those bundle differences are useful only after confirming suitability for the fitted hydraulic system.

Common questions

Can I buy a separate diaphragm instead of the full reservoir package?

A separate diaphragm is listed for the compatible reservoir and identifies 45520-MA5-671 among its references. Compare the fitted diaphragm and reservoir condition. The full two-screw package also supplies the plastic reservoir, cap, O-ring and screw when those pieces are needed.

Which custom assembly includes a mirror mount and connection hardware?

The Honda-type assembly states a right-hand-threaded mirror mount and includes lever, banjo bolt, washers and brake-light switch. Magura has no mirror mount and sells the switch, M10 x 1.0 banjo bolt and sealing washer separately. Verify hydraulic suitability before choosing either bundle.

Which retained master-cylinder parts should be inspected before ordering service items?

The boot listing calls for checking the bore, piston, seals, lever pivot and fluid for corrosion, leakage or binding. Use those findings to identify the required service pieces, matching the 45530-MA4-671 kit to the listed original master-cylinder application.

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 1983 Honda CB450SC Nighthawk

Your cart

×