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Honda CB750 CB550 CB450 CB400 Front Master Cylinder Repair Kit 45530-MA4-671

Honda CB750 CB550 CB450 CB400 Front Master Cylinder Repair Kit - Replaces Honda OEM 45530-MA4-671

$29.53
08-0201
Honda CB Motorcycle Parts Honda CB1000 Parts Honda CB125 Parts Honda CB125TT Parts Honda CB400 Parts Honda CB400T Parts Honda CB450 Parts Honda CB450SC Nighthawk Parts Honda CB450T Hawk Parts Honda CB550 Parts Honda CB550SC Parts Honda CB650 Parts Honda CB750 Parts Honda CB750K Parts (1969–1982) Honda CB900 Parts Honda CB900F Parts Honda CBR Motorcycle Parts Honda CBR1000F Parts Honda CBR600F Parts Honda CM Motorcycle Parts Honda CM400 Parts Honda CM400A Parts Honda CM400C Parts Honda CM400T Parts Honda CM450 Parts Honda CM450A Parts Honda CM450C Parts Honda CN250 Helix Scooter Parts Honda CN250 Parts Honda CX Motorcycle Parts Honda CX500 Parts Honda CX500C Custom Parts Honda CX500D Deluxe Parts Honda CX650 Parts Honda CX650C Custom Parts Honda FT500 Ascot Motorcycle Parts Honda FT500 Parts Honda GL1100 Gold Wing Parts Honda GL1100A Parts Honda GL1100I Parts Honda GL1200 Gold Wing Parts Honda GL1500 Gold Wing & Valkyrie Parts Honda GL1500C Valkyrie Parts Honda GL1500CD Valkyrie Parts Honda GL1500CT Valkyrie Tourer Parts Honda GL500 Silver Wing Parts Honda Gold Wing Motorcycle Parts Honda PC800 Pacific Coast Motorcycle Parts Honda PC800 Parts Honda ST Motorcycle Parts Honda ST1100 Pan European Parts Honda ST1100A Parts Honda VF Magna, Sabre & Interceptor Parts Honda VF500 Parts Honda VF500C Parts Honda VFR Motorcycle Parts Honda VFR800 Interceptor Parts Honda VFR800A Interceptor ABS Parts Honda VT Motorcycle Parts Honda VT500 Parts Honda VT500C Parts Honda VT500FT Parts Honda VT700 Parts Honda VT700C Parts Honda VT750 Parts Honda VT750C Parts Honda VTR Motorcycle Parts Honda VTR1000 Parts Honda VTR1000F Parts Honda VTX Motorcycle Parts Honda VTX1800 Parts Honda VTX1800C Parts Motorcycle Brake Master Cylinder Rebuild Kits Vintage Honda Motorcycle Parts Vintage Motorcycle Brake Parts & Rebuild Kits
Honda CB750 CB550 CB450 CB400 Front Master Cylinder Repair Kit - Replaces Honda OEM 45530-MA4-671. This front master-cylinder repair kit renews the hydraulic master...
In stock
Honda Motorcycle ATV Rod Joint 95015-32001

Honda Motorcycle ATV Rod Joint - Replaces Honda OEM 95015-32001

$3.26
73-0843
Honda ATC Three-Wheeler Parts Honda ATC110 Parts Honda ATC125M Parts Honda ATC185 Parts Honda ATC185S Parts Honda ATC200 Parts Honda ATC200E Parts Honda ATC200ES Parts Honda ATC200M Parts Honda ATC200S Parts Honda ATC250ES Parts Honda ATC250R Parts Honda ATC250SX Parts Honda ATC70 Parts Honda ATV & ATC Parts Honda CA Motorcycle Parts Honda CA160 Parts Honda CA72 Parts Honda CA77 Parts Honda CA95 Parts Honda CB Motorcycle Parts Honda CB125 Parts Honda CB125S Parts Honda CB125TT Parts Honda CB175 Parts Honda CB175K Parts Honda CB200 Parts Honda CB200T Parts Honda CB250 Parts Honda CB250SC Parts Honda CB350 Parts Honda CB350F Parts Honda CB350G Parts Honda CB350K Parts Honda CB360 Parts Honda CB360G Parts Honda CB360K Parts Honda CB360T Parts Honda CB400 Parts Honda CB400A Parts Honda CB400F Parts Honda CB400T Parts Honda CB400T1 Parts Honda CB400T2 Parts Honda CB450 Parts Honda CB450K DOHC Twin Parts Honda CB450SC Nighthawk Parts Honda CB450T Hawk Parts Honda CB500 Parts Honda CB500K Parts Honda CB500T Parts Honda CB550 Parts Honda CB550F Parts Honda CB550K Parts Honda CB550SC Parts Honda CB650 Parts Honda CB650C Parts Honda CB650SC Parts Honda CB700 Parts Honda CB700SC Parts Honda CB750 Parts Honda CB750A Hondamatic Parts (1976–1978) Honda CB750C Custom Parts (1980–1982) Honda CB750K Parts (1969–1982) Honda CB750SC & Nighthawk 750 Parts Honda CB92 Parts Honda CJ Motorcycle Parts Honda CL Scrambler Motorcycle Parts Honda CL350 Scrambler Parts Honda CL350K Scrambler Parts Honda CM Motorcycle Parts Honda CMX Rebel Motorcycle Parts Honda CR Motocross Parts Honda CR125 Motocross Parts Honda CR125R Motocross Parts Honda CR250 Parts Honda CR250M Parts Honda CR250R Parts Honda CRF Motorcycle Parts Honda CT Motorcycle Parts Honda CX Motorcycle Parts Honda CX500 Parts Honda CX500C Custom Parts Honda CX500D Deluxe Parts Honda GB500 Tourist Trophy Parts Honda Gold Wing Motorcycle Parts Honda MR Elsinore Motorcycle Parts Honda MT Motorcycle Parts Honda NX Motorcycle Parts Honda PC800 Pacific Coast Motorcycle Parts Motorcycle Brake Pads, Shoes & Shoe Springs Vintage Honda Motorcycle Parts Vintage Motorcycle Brake Parts & Rebuild Kits
Honda Motorcycle ATV Rod Joint - Replaces Honda OEM 95015-32001. This brake or control linkage rod transfers movement through the listed brake or control...
In stock
Honda Motorcycle ATV Front Master Cylinder Reservoir Diaphragm 45520-MA5-671

Honda Motorcycle ATV Front Master Cylinder Reservoir Diaphragm

$10.88
08-0284
Honda ATV & ATC Parts Honda CB Motorcycle Parts Honda CB1000 Parts Honda CB1000C Parts Honda CB1100 Parts Honda CB1100F Parts Honda CB125 Parts Honda CB125TT Parts Honda CB400 Parts Honda CB400F Parts Honda CB400T Parts Honda CB450 Parts Honda CB450SC Nighthawk Parts Honda CB450T Hawk Parts Honda CB550 Parts Honda CB550SC Parts Honda CB650 Parts Honda CB650C Parts Honda CB650SC Parts Honda CB700 Parts Honda CB700SC Parts Honda CB750 Parts Honda CB750C Custom Parts (1980–1982) Honda CB750F Super Sport Parts (1975–1982) Honda CB750K Parts (1969–1982) Honda CB750SC & Nighthawk 750 Parts Honda CB900 Parts Honda CB900C Parts Honda CB900F Parts Honda CBR Motorcycle Parts Honda CBR600F Parts Honda CBX Motorcycle Parts Honda CBX1050 Parts Honda CM Motorcycle Parts Honda CM450 Parts Honda CM450A Parts Honda CM450C Parts Honda CMX Rebel Motorcycle Parts Honda CMX450 Rebel Parts Honda CMX450C Parts Honda CX Motorcycle Parts Honda CX500 Parts Honda CX500C Custom Parts Honda CX500D Deluxe Parts Honda CX500TC Turbo Parts Honda CX650 Parts Honda CX650C Custom Parts Honda CX650T Turbo Parts Honda FT500 Ascot Motorcycle Parts Honda FT500 Parts Honda GB500 Parts Honda GB500 Tourist Trophy Parts Honda GL1100 Gold Wing Parts Honda GL1100A Parts Honda GL1100I Parts Honda GL1200 Gold Wing Parts Honda GL1200A Aspencade Parts Honda GL1200I Interstate Parts Honda GL1200L Limited Parts Honda GL1200SEI SE-i Parts Honda GL500 Silver Wing Parts Honda GL500I Parts Honda GL650 Silver Wing Parts Honda GL650I Parts Honda Gold Wing Motorcycle Parts Honda TRX ATV Parts Honda TRX200 Parts Honda TRX250 Parts Honda TRX300FW Parts Honda TRX350 Parts Honda TRX350FE Parts Honda TRX350FM Parts Honda TRX350TE Parts Honda TRX350TM Parts Honda TRX400FA Parts Honda TRX400FGA Parts Honda TRX400FW Parts Honda VF Magna, Sabre & Interceptor Parts Honda VF750 Parts Honda VF750C Parts Honda VF750F Parts Honda VF750S Parts Honda VFR Motorcycle Parts Honda VFR750 Interceptor Parts Honda VFR750F Parts Honda VT Motorcycle Parts Honda VT1100 Shadow Parts Honda VT1100C Shadow & Spirit Parts Honda VT750 Parts Honda VT750C Parts Honda VTR Motorcycle Parts Motorcycle Brake Master Cylinder Rebuild Kits Vintage Honda Motorcycle Parts Vintage Motorcycle Brake Parts & Rebuild Kits
Honda Motorcycle ATV Front Master Cylinder Reservoir Diaphragm - Replaces Honda OEM 45520-MA5-671. This master-cylinder reservoir diaphragm seals under the reservoir cap while allowing...

About the Honda CB125TT

A practical parts guide for the 1990 CB125TT, including the A and AC catalog labels.

Honda Motorcycle Logo

The 1990 Honda CB125TT has its own OEM parts-catalog entries, including A and AC versions. Keep that full identity with your order: a CB125S, CB125T or CB125TD name alone does not confirm a TT application. The CB125 family collection is the starting point when the model still needs resolving.

Match the repair to a measurable part

For fork service, the featured oil seals measure 31 × 43 × 10 mm. For a float or front master-cylinder repair, the product references below provide a second check alongside shape and mounting. This is especially useful on a bike with replacement forks, a different carburetor or changed handlebar controls.

Know your model before choosing partsCB125TT model and repair differences

1990 CB125TT A / AC

Keep the complete catalog label

The OEM catalog separates A and AC entries and shows additional air-suction and canister diagrams under AC. Record the version on the motorcycle before comparing fuel and emissions-related components.

Fork oil seals

31 × 43 × 10 mm

The CB125TT 1990 seal set lists these three dimensions. Match inside diameter, outside diameter, height and profile; check fork-tube condition before replacing a leaking seal.

Carburetor float

Reference 16013-KR3-980

The featured float is sold individually and lists CB125TT 1990. Compare its hinge, body shape and valve-contact point. A float is separate from a float needle or a complete carburetor kit.

Front hydraulic master cylinder

Reference 45530-MA4-671

The repair kit lists CB125TT 1990. Match the fitted master-cylinder bore and piston/seal arrangement. It services the handlebar unit; a caliper repair needs its own parts.

Frame, engine and component checksIdentify your CB125TT before ordering

Record the frame and engine markings, then compare the component being repaired. Include replacement-engine or chassis details if the motorcycle has been modified.

  • Preserve every letter of the model code and record the original market if known.
  • Record the engine number separately; it does not automatically match the frame after a swap.
  • Compare the carburetor identification and float shape before ordering fuel parts.
  • Measure the old fork seal and identify the master-cylinder assembly independently of the model badge.
Need help identifying the part?

Contact PartsNMore with your CB125TT model year, full markings and clear photos of the component.

Model reference: 1990 Honda CB125TT OEM catalog, A and AC entries. Use the component diagram alongside the motorcycle’s identification and the replacement product details.

Honda CB125TT parts questions

What do CB125TT A and AC mean in a parts search?
The 1990 OEM catalog separates CB125TT A and AC entries, with air-suction and canister diagrams shown under AC. Retain the complete version from the motorcycle’s records and compare the relevant assembly. The catalog distinction does not make every A and AC component interchangeable.
What size fork oil seals are listed for the 1990 CB125TT?
The featured seal set is 31 × 43 × 10 mm: inside diameter × outside diameter × height. Its product application includes CB125TT 1990. Compare the profile and installed forks as well as those measurements.
Which part reference helps identify the CB125TT carburetor float?
The featured 1990 CB125TT float replaces reference 16013-KR3-980 and is sold individually. Compare the carburetor marking, float shape and hinge arrangement. Check the float valve separately when diagnosing fuel overflow.
Is the CB125TT front master-cylinder kit a complete brake overhaul kit?
No. The featured kit replaces reference 45530-MA4-671 and services the front master cylinder for the listed 1990 application. Caliper seals, brake hoses, pads and reservoir parts must be selected separately when required.

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