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  • Honda CB Tappet Adjuster Screw & Nut Set ~ Replaces 90012-426-000
Honda CB750 CB650 CB550 tappet adjuster screw and nut set 90012-426-000
Tappet adjuster screw and nut set parts fiche diagram, SKU 49-0784
Honda Tappet Adjuster Screw & Nut Set ~ Replaces 90012-426-000 — Front three-quarter
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Honda CB750 CB650 CB550 tappet adjuster screw and nut set 90012-426-000

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Honda CB Tappet Adjuster Screw & Nut Set ~ Replaces 90012-426-000

49-0784
$4.61 USD
In stock Usually ships the same or next business day
Check model fitment View fitment
Questions about this part? Contact us 4.8/5 1,331 store reviews
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60-day returnsEligible unused parts Free ground shippingUSA & Canada over $50
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1 product reviews

Honda CB Tappet Adjuster Screw & Nut Set ~ Replaces 90012-426-000

Honda CB Tappet Adjuster Screw & Nut Set ~ Replaces 90012-426-000
$4.61 USD
Description

Replace your tappet adjuster screws and nuts with this Tappet Adjuster Screw & Nut Set. Each set includes one tappet adjuster screw and one nut. Replaces OEM #90012-426-000 (adjuster) and OEM #90206-250-000 (nut).

Key Features
• Tappet adjuster screw and nut set
• Replaces OEM #90012-426-000 (adjuster) and #90206-250-000 (nut)

Fitment / Compatibility

• Honda CB750K (1969‑78), 8 sets per bike
• CB750F (1975‑78) Supersport, 8 sets per bike
• CB750A (1976‑78) Hondamatic, 8 sets per bike

• Honda CB650 (1979‑82)
• CB650C (1980‑81) Custom
• CB650SC (1982) Nighthawk

• Honda CB500K (1971‑73)
• CB550F (1975‑77) Supersport
• CB550K (1974‑78)

• Honda CB400A (1978)
• CB400T (1980‑81)
• CB400TI (1978‑79)
• CB400TII (1978‑79)
• CB450SC (1982‑83)
• CB450T (1982)

• Honda CB360K (1974)
• CB360G (1974)
• CB360T (1975‑76)
• CL360K (1974‑75)

• Honda CB125S (1981‑82)
Order the quantity of sets your bike requires.

Part Number: 49-0784

Read More
Read Less

Check the listed model and year, then read any fitment notes in the description.

Make Model Year
Honda CB750K Standard 1969
Honda CB750K 1970
Honda CB750K 1971
Honda CB750K 1972
Honda CB750K 1973
Honda CB750K 1974
Honda CB750K 1975
Honda CB750F Supersport 1975
Honda CB750K 1976
Honda CB750F 1976
Honda CB750A Hondamatic 1976
Honda CB750K 1977
Honda CB750F 1977
Honda CB750A 1977
Honda CB750K 1978
Honda CB750F 1978
Honda CB750A 1978
Honda CB650 1979
Honda CB650 1980
Honda CB650 1981
Honda CB650 1982
Honda CB650SC Nighthawk 1982
Honda CB650C Custom 1980
Honda CB650C Custom 1981
Honda CB550K0 1974
Honda CB550K1 1975
Honda CB550K2 1976
Honda CB550K3 1977
Honda CB550K4 1978
Honda CB550F1 1975
Honda CB550F2 1976
Honda CB550F3 1977
Honda CB500K0 1971
Honda CB500K1 1972
Honda CB500K2 1973
Honda CB400A 1978
Honda CB400TI Hawk 1978
Honda CB400TIZ Hawk 1979
Honda CB400TII Hawk 1978
Honda CB400TIIZ Hawk 1979
Honda CB400TA Hawk 1980
Honda CB400TB Hawk 1981
Honda CB450SCC Nighthawk 1982
Honda CB450SCD Nighthawk 1983
Honda CB450TC 1982
Honda CB360T 1975
Honda CB360T 1976
Honda CB360G 1974
Honda CB360K0 1974
Honda CL360K0 1974
Honda CL360K1 1975
Honda CB125S 1981
Honda CB125S 1982

Free ground shipping over $50

To the USA & Canada. In-stock orders usually ship from our own warehouse the same or next business day.

Estimated ground delivery after your order ships
DestinationDelivery time
USA4–7 business days
Canada2–6 business days

Ground shipping includes tracking, emailed when your order ships. Need it sooner? Express options are available at checkout.

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60-day returns on eligible parts

No restocking fees. Eligible parts must be unused, uninstalled, unaltered and complete. The 60-day window starts when your order is delivered.

Electrical parts are excluded from standard returns. Check return eligibility.

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Other shipping options

Canada Post Economy: Available at checkout for select small items. Allow 1–3 weeks for delivery. No tracking or insurance is included.

Outside the USA & Canada: Delivery times vary by destination and shipping method. Buyers are responsible for applicable duties, taxes and import fees. We cannot mark orders as gifts.

Frequently Asked Questions

What is included with Honda tappet adjuster 90012-426-000?

One tappet-adjuster screw replacing Honda OEM 90012-426-000 and one locknut replacing 90206-250-000 are included for one valve.

How many tappet-adjuster sets are required for the compatible Honda engines?

A complete replacement uses eight sets on the listed SOHC four-cylinder CB500, CB550, CB650 and CB750 engines; six on the listed three-valve-per-cylinder CB400 and CB450 twins; four on the CB360 and CL360 twins; and two on the CB125S single.

What must be done after installing a tappet-adjuster screw?

Set valve clearance with the engine in the Honda-specified condition and at the correct crank position, hold the screw while tightening the locknut, then recheck the clearance. Incorrect valve clearance can cause noise, poor running or valve damage.

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