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1971 Honda CB500K Exhaust Gaskets & Mounting Hardware

Plan your 1971 Honda CB500K exhaust repair by separating the sealing pieces from the retaining hardware. Individual port gaskets and ten-packs cover the same listed application. Clamps and the stud set are separate choices, with their own dimensions and package contents.

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Honda motorcycle parts

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Honda CB kick stand stopper rubber 95011-61000

Honda CB Kick Stand Stopper Rubber ~ Replaces 95011-61000

$2.95 USD
07-4624
Replace a worn kick stand stopper with this Kick Stand Stopper Rubber "A", a direct replacement for OEM #95011-61000. Exceptionally broad fitment across the...
Honda CB550 CB500 CB200 exhaust headpipe gasket (each) 18291-216-000

Honda CB Exhaust Headpipe Gasket (Each) ~ Replaces 18291-216-000

$4.13 USD
17-2816
Replace one exhaust port gasket on your CB500/CB550 or smaller Honda with this Exhaust Port Gasket, 1 piece, replacing OEM #18291-216-000 / #18291-MN5-650. Fits...
Honda CB550F CB550K CB500K exhaust stud set

1971-78 Honda CB550F / CB550K / CB500K Exhaust Stud Set

$34.95 USD
73-1137
Restore secure and leak-free exhaust mounting on your vintage Honda with this premium Exhaust Stud Set. Designed for CB500K, CB550K, and CB550F models, this...
Honda CB550 CB500 CB400 CB350 CB100 chrome exhaust clamp 18231-323-000

Honda CB Chrome Exhaust Clamp ~ Replaces 18231-323-000

$24.95 USD
73-0090
Replace your exhaust clamp with this Chrome Exhaust Clamp, 14-fin type. Center-to-center mounting hole diameter 55mm. Replaces OEM #18231-323-000 / #18231-323-010 / #18231-333-010.Key Features•...
Honda CB550K CB500K muffler connecting tube 18473-323-000

1971-76 Honda CB550K / CB500K Muffler Connecting Tube ~ Genuine Honda 18473-323-000

$34.95 USD
99-5452
This genuine Honda muffler connecting tube fits original-style exhaust assemblies on the Honda CB500K and CB550K Four models listed below. It sits at the...
Honda CB550 CB500 CB200 exhaust headpipe gaskets (pk 10) 18291-216-000

Honda CB Exhaust Headpipe Gaskets ~ (Pk/10) ~ Replaces 18291-216-000

$32.95 USD
17-3816
Stock up on exhaust port gaskets for your CB500/CB550 or smaller twins with this 10-pack, replacing OEM #18291-216-000 / #18291-MN5-650.Key Features• Exhaust port gaskets,...
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1971 Honda CB500K · Gaskets & Mounting Hardware Buying guide

Separate a leaking joint from damaged hardware

This selection includes exhaust port seals, a finned header clamp, mounting studs and a genuine muffler connecting rubber. Compare the old parts before ordering a whole set when only one component needs attention.

Parts to consider

Honda CB Exhaust Headpipe Gasket (Each) ~ Replaces 18291-216-000 Exhaust port gasket, eachReplacement for Honda 18291-216-000, also referenced as 18291-MN5-650. One exhaust port gasket is supplied. Sold individually; order the quantity required.View part Honda CB Exhaust Headpipe Gaskets ~ (Pk/10) ~ Replaces 18291-216-000 Exhaust port gaskets, pack of tenTen exhaust port gaskets replacing Honda 18291-216-000 / 18291-MN5-650. Choose this pack when you need spare gaskets for more than one service job.View part Honda CB Chrome Exhaust Clamp ~ Replaces 18231-323-000 Chrome exhaust clampChrome 14-fin clamp with 55mm mounting-hole spacing. Replaces Honda 18231-323-000, 18231-323-010 and 18231-333-010; compare the header flange arrangement before ordering.View part

Related parts: Exhaust stud, nut and washer set · Genuine Honda muffler connecting tube

Buy the gasket quantity you actually need

The single and ten-pack port gasket listings both reference 18291-216-000 / 18291-MN5-650. The ten-pack is a supply of ten gaskets, not a kit containing clamps or fasteners. For a smaller repair, the individual listing lets you order only the gasket quantity required.

Check what comes in the hardware set

The exhaust stud set lists eight studs, eight washers and eight nuts. The chrome clamp is a separate product with 14 fins and 55mm mounting-hole spacing. Neither choice should be treated as an exhaust gasket kit, and the rubber muffler connector serves a separate joint.

Exhaust Gaskets & Mounting Hardware FAQs

What measurement matters for the chrome clamp?

The listing gives 55mm center-to-center mounting-hole spacing and describes a 14-fin chrome clamp. Compare that spacing and the existing flange arrangement on your motorcycle, especially where headers or mounting pieces have been changed.

Does one stud set cover all four exhaust ports?

The set supplies eight studs, eight washers and eight nuts: two studs for each port on one compatible four-cylinder engine. Check the retained clamps and collars separately, because they are not named in the package contents.

How do I distinguish the port seal from the muffler-joint rubber when ordering?

Identify the joint being serviced. The port gasket uses references 18291-216-000 and 18291-MN5-650; the original-style muffler connector uses 18473-323-000. Match the connector position as well, since its number does not cover every muffler joint.

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