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1975 Honda CB125S2 Oil Drain Plugs

An oil drain-plug order for the 1975 Honda CB125S2 should begin with the fitting already in the engine. This magnetic replacement specifies a 12mm diameter, M1.5 thread and reference 92800-12000. Verify that combination before choosing sealing parts for the same service.

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Currently viewing Oil Filters, Drain Plugs, Oil Pump & Gauges

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Honda CB900 CB750 CB700 CB650 drain plug washer

Honda CB900/CB750/CB700/CB650 Drain Plug Washer

$1.75 USD
15-0006
Fit the smaller 12mm drain plug washer with this 12mm x 18mm x 1mm Drain Plug Crush Washer. Broad fitment across the SOHC CB750,...
Honda CB900 CB750 CB700 CB650 CB550 magnetic oil drain plug

Honda CB Magnetic Oil Drain Plug

$12.95 USD
15-0016
Fit a 12mm magnetic drain plug with this Magnetic Oil Drain Plug, 12mm diameter x M1.5, replacing OEM #92800-12000. Broad fitment across the SOHC...
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Honda CB750 CB700 performance magnetic oil drain plug joker machine

Honda CB Performance Magnetic Oil Drain Plug ~ Joker Machine

$49.95 USD
73-1074
Catch metal debris from your engine with this Joker Machine Brand Custom Performance Magnetic Oil Drain Plug, 12mm dia x M1.5, OEM #92800-12000.The plug...
Honda CB125 CB100 oil pump gasket 15126-107-020

Honda CB125 / CB100 Oil Pump Gasket ~ Replaces 15126-107-020

$2.95 USD
73-1196
Ensure a secure, leak-free seal during your engine rebuild or maintenance with this Oil Pump Gasket. Precisely engineered to replace OEM# 15126-107-020, this gasket...
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Honda CB125 CB100 Honda oil filter screen spring 15426-107-000

Honda CB125 / CB100 Genuine Honda Oil Filter Screen Spring ~ OEM 15426-107-000

$25.00 USD
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Upgrade or restore your classic Honda motorcycle with this Genuine Honda Oil Filter Screen Spring — precision‑engineered and quality made in Japan. This authentic...
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Honda CB100 CB125 oil filter screen 15421-107-000

Honda CB100 / CB125 Oil Filter Screen ~ Replaces 15421-107-000

$5.64 USD
01-8998
Protect your small-displacement Honda's engine with this Oil Filter Screen, a direct replacement for OEM #15421-107-000. Fits the CB100K and CB125S series, filtering debris...
Honda CB125 CB100 oil filter cap gasket 15459-KT0-710

Honda CB125 / CB100 Oil Filter Cap Gasket ~ Replaces 15459-KT0-710

$5.95 USD
73-1197
Maintain proper oil system sealing with this high-quality Oil Filter Cap Gasket. This direct replacement meets OEM specifications to ensure a leak-free seal when...
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1975 Honda CB125S2 · Oil Drain Plugs Buying guide

Compare diameter and thread together at the drain point

A matching diameter is only part of the selection. Keep the M1.5 thread specification and replacement reference beside it, and check whether any previous drain-thread repair changed the fitting.

Parts to consider

Honda CB Magnetic Oil Drain Plug Magnetic oil drain plug12mm-diameter magnetic drain plug with M1.5 thread; replaces reference 92800-12000.View part

Do not match on head shape alone

The replacement’s useful ordering details are the 12mm diameter, M1.5 thread and reference 92800-12000. Compare those with the existing drain fitting. Similar-looking plug heads are not a substitute for identifying the thread, particularly on an engine with an uncertain repair history.

Check the drain area before replacing only the plug

Inspect the plug and receiving fitting as part of the repair assessment. If the thread or sealing area is damaged, establish what work is needed before assuming a new plug alone addresses it. Follow the motorcycle’s appropriate service information when fitting the replacement.

Buying questions

Is a 12mm diameter alone enough to select the plug?

Use the diameter together with the specified M1.5 thread and reference 92800-12000. Confirm the current drain fitting matches that combination, especially if earlier work changed the plug or repaired the receiving thread.

What should I check when the existing plug is missing?

Identify the engine and drain fitting using the correct parts information, then establish the thread specification before ordering. Without the old plug, do not infer a match from the apparent opening diameter or a similar-looking replacement.

Is a sealing washer supplied with the plug?

Washer inclusion is not confirmed in the written product specification. Identify the sealing part required by the drain fitting and confirm the supplied contents before checkout, so you can decide whether a separate washer is needed.

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

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