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1985 Honda CB125S Oil Service Parts

For oil-service purchases on a 1985 Honda CB125S, distinguish replacement drain hardware from the parts inside the screen opening. The featured magnetic plug has a defined thread specification. Identify the opening being serviced before choosing seals or other components from the wider selection.

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

Honda motorcycle parts

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

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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...
New
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
99-5044
Upgrade or restore your classic Honda motorcycle with this Genuine Honda Oil Filter Screen Spring — precision‑engineered and quality made in Japan. This authentic...
New
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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1985 Honda CB125S · Oil Service Parts Buying guide

Choose the part at the oil-service opening

The featured plug collects steel debris and uses a 12 mm diameter, M1.5 thread. Those facts help select the plug; the required sealing arrangement and any screen-service parts remain separate checks for the installed engine.

Parts to consider

Honda CB Magnetic Oil Drain Plug Magnetic drain plugA magnetic drain plug with a 12 mm diameter and M1.5 thread, listed against replacement reference 92800-12000.View part

Compare the drain connection

Read the plug diameter and thread pitch together: 12 mm and M1.5 describe different aspects of the connection. Check both against the existing part. A replacement should also suit the sealing arrangement; a similar-looking hex head does not establish that match.

Check the sealing requirement before checkout

Compare the existing seal and its seating area when selecting the plug. The supplied plug description does not establish washer inclusion, so resolve that package detail before completing the order. Obtain the required tightening specification from suitable service information instead of inferring it from the thread diameter.

Questions before ordering

Is the sealing washer included with the magnetic plug?

Washer inclusion is not confirmed. Check package contents before completing your order, and compare the required sealing dimensions with the drain connection on your engine. This avoids relying on a separate washer that may not be supplied.

Will this plug work after a drain-thread repair?

A repaired thread may differ from the original connection. Establish the current diameter, pitch and sealing arrangement from the repair details or existing plug. Do not rely on the model-year application when the drain opening has been modified.

Does the magnet change the oil-service schedule?

The magnetic feature is described for collecting steel debris. No different service interval is supplied with that claim. Follow the service schedule for the installed engine and assess screen or sealing-part needs separately.

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