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  • 1971-73 Honda CB500K Standard Size (56 mm) Piston Kit ~ Includes Piston, Rings, Pin & Clips
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Honda CB500K standard size (56 mm) piston kit includes piston, rings, pin and clips
SKU 99-4871 — approved OEM fiche location reference (BJ03-dealer-r2)
Secure checkoutProtected payment
60-day returnsEligible unused parts Free ground shippingUSA & Canada over $50
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Honda CB500K standard size (56 mm) piston kit includes piston, rings, pin and clips

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Load image into Gallery viewer, SKU 99-4871 — approved OEM fiche location reference (BJ03-dealer-r2)

1971-73 Honda CB500K Standard Size (56 mm) Piston Kit ~ Includes Piston, Rings, Pin & Clips

99-4871
$44.95 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 1,347 store reviews
Secure checkoutProtected payment
60-day returnsEligible unused parts Free ground shippingUSA & Canada over $50
Browse all parts
1971-73 Honda CB500K Standard Size (56 mm) Piston Kit ~ Includes Piston, Rings, Pin & Clips
$44.95 USD
Description

Upgrade or rebuild your classic Honda motorcycle engine with this Standard Size (56 mm) Piston Kit — complete with piston, piston rings, piston pin, and piston pin clips (pair). This kit replaces OEM piston #13101‑323‑000, piston rings #13011‑323‑014 / 13011‑323‑013, clip #94601‑15000, and pins #13111‑440‑000 / 13111‑286‑000, providing all essential internal components to rebuild one piston. Because this kit rebuilds only one piston, 4 kits are needed to rebuild all pistons in a 4‑cylinder engine — please confirm before ordering.

Whether you’re performing a full engine rebuild or updating worn internal components, this complete piston kit offers quality parts engineered for precise fit and dependable performance.

Key Features
• Complete piston kit with standard size (56 mm) piston, rings, pin, and clips
• Replaces multiple OEM engine components for accurate rebuilds
• Designed for reliable performance and engine longevity
• Ideal for restoring compression and smooth operation
• Our Part Number: 99‑4871

Fitment / Compatibility
• CB500K (1971‑73)

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

Make Model Year
Honda CB500K0 1971
Honda CB500K1 1972
Honda CB500K2 1973

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.

See full shipping details

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

How many 56 mm piston kits are required for a 1971-1973 Honda CB500K?

One standard-size 56 mm piston, ring set, wrist pin and two pin clips are included. The CB500K four-cylinder engine requires four kits to replace all four pistons.

Can a standard-size CB500K piston be installed without measuring the cylinder?

No. Measure bore diameter, taper, out-of-round and piston-to-wall clearance. A worn or previously overbored cylinder may require machining and a correctly sized oversize piston instead.

What must be checked during piston installation?

Verify ring end gaps in the actual bore, ring orientation, piston direction and wrist-pin clip seating to the Honda manual. Keep each ring and piston matched to its measured cylinder.

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