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2003 Honda CB900F 919 Exhaust-Port Gaskets

Order exhaust-port gaskets for your 2003 919 after identifying the seal at the connection. The single and ten-pack options have the same listed application. Check any exhaust modifications before using those references, then calculate the purchase quantity for the joints being serviced.

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Honda CB900 CB650 CB550 exhaust headpipe gasket (each) 18212-634-000

Honda CB Exhaust Headpipe Gasket (Each) ~ Replaces 18212-634-000

$3.58 USD
17-2813
1978 Honda CB400A Motorcycle Parts 1978 Honda CB400TI Motorcycle Parts 1978 Honda CB400TII Motorcycle Parts 1979 Honda CB400TIIZ Motorcycle Parts 1979 Honda CB400TIZ Motorcycle Parts 1979 Honda CB650 Motorcycle Parts 1980 Honda CB400TA Motorcycle Parts 1980 Honda CB650 Motorcycle Parts 1980 Honda CB650C Custom Motorcycle Parts 1981 Honda CB400TB Motorcycle Parts 1981 Honda CB650 Motorcycle Parts 1981 Honda CB650C Custom Motorcycle Parts 1982 Honda CB450SC Nighthawk Motorcycle Parts 1982 Honda CB450T Hawk Motorcycle Parts 1982 Honda CB650 Motorcycle Parts 1982 Honda CB650SC Nighthawk Motorcycle Parts 1983 Honda CB450SC Nighthawk Motorcycle Parts 1983 Honda CB550SC Nighthawk Motorcycle Parts 1983 Honda CB650SC Nighthawk Motorcycle Parts 1984 Honda CB650SC Nighthawk Motorcycle Parts 1985 Honda CB450SC Nighthawk Motorcycle Parts 1985 Honda CB650SC Nighthawk Motorcycle Parts 1986 Honda CB450SC Nighthawk Motorcycle Parts 2002 Honda CB900F 919 Motorcycle Parts 2003 Honda CB900F 919 Motorcycle Parts 2004 Honda CB900F 919 Motorcycle Parts 2005 Honda CB900F 919 Motorcycle Parts 2006 Honda CB900F 919 Motorcycle Parts 2007 Honda CB900F 919 Motorcycle Parts Honda CB Exhaust Gaskets & Mounting Hardware Honda CB Exhaust Systems, Mufflers & Hardware Honda CB400 Motorcycle Parts by Model & Year Honda CB400T Hawk Motorcycle Parts (1978–1981) Honda CB450 Motorcycle Parts by Model & Year Honda CB450SC Nighthawk Motorcycle Parts (1982–1986) Honda CB550 Motorcycle Parts by Model & Year Honda CB550SC Nighthawk Motorcycle Parts (1983–1984) Honda CB650 Motorcycle Parts (1979–1982) Honda CB650 Motorcycle Parts by Model & Year Honda CB650C Custom Motorcycle Parts (1980–1981) Honda CB650SC Nighthawk Motorcycle Parts (1982–1985) Honda CB900 Motorcycle Parts by Model & Year Honda CB900F 919 Motorcycle Parts (2002–2007) Series 4: CB900-1100 (80-83) Series 5: CB650 (79-82) Series 6: CB500-CB550 (71-78) Series 7: CB400-CB450 (65-86)
Replace one exhaust port gasket on your CB650, CB400, CB450, or modern CB900F with this Exhaust Port Gasket, 1 piece, replacing OEM #18212-634-000 /...
Honda CB900 CB650 CB550 exhaust headpipe gaskets (pk 10) 18212-634-000

Honda CB Exhaust Headpipe Gaskets ~ (Pk/10) ~ Replaces 18212-634-000

$27.95 USD
17-3813
1978 Honda CB400A Motorcycle Parts 1978 Honda CB400TI Motorcycle Parts 1978 Honda CB400TII Motorcycle Parts 1979 Honda CB400TIIZ Motorcycle Parts 1979 Honda CB400TIZ Motorcycle Parts 1979 Honda CB650 Motorcycle Parts 1980 Honda CB400TA Motorcycle Parts 1980 Honda CB650 Motorcycle Parts 1980 Honda CB650C Custom Motorcycle Parts 1981 Honda CB400TB Motorcycle Parts 1981 Honda CB650 Motorcycle Parts 1981 Honda CB650C Custom Motorcycle Parts 1982 Honda CB450SC Nighthawk Motorcycle Parts 1982 Honda CB450T Hawk Motorcycle Parts 1982 Honda CB650 Motorcycle Parts 1982 Honda CB650SC Nighthawk Motorcycle Parts 1983 Honda CB450SC Nighthawk Motorcycle Parts 1983 Honda CB550SC Nighthawk Motorcycle Parts 1983 Honda CB650SC Nighthawk Motorcycle Parts 1984 Honda CB650SC Nighthawk Motorcycle Parts 1985 Honda CB450SC Nighthawk Motorcycle Parts 1985 Honda CB650SC Nighthawk Motorcycle Parts 1986 Honda CB450SC Nighthawk Motorcycle Parts 2002 Honda CB900F 919 Motorcycle Parts 2003 Honda CB900F 919 Motorcycle Parts 2004 Honda CB900F 919 Motorcycle Parts 2005 Honda CB900F 919 Motorcycle Parts 2006 Honda CB900F 919 Motorcycle Parts 2007 Honda CB900F 919 Motorcycle Parts Honda CB Exhaust Gaskets & Mounting Hardware Honda CB Exhaust Systems, Mufflers & Hardware Honda CB400 Motorcycle Parts by Model & Year Honda CB400T Hawk Motorcycle Parts (1978–1981) Honda CB450 Motorcycle Parts by Model & Year Honda CB450SC Nighthawk Motorcycle Parts (1982–1986) Honda CB550 Motorcycle Parts by Model & Year Honda CB550SC Nighthawk Motorcycle Parts (1983–1984) Honda CB650 Motorcycle Parts (1979–1982) Honda CB650 Motorcycle Parts by Model & Year Honda CB650C Custom Motorcycle Parts (1980–1981) Honda CB650SC Nighthawk Motorcycle Parts (1982–1985) Honda CB900 Motorcycle Parts by Model & Year Honda CB900F 919 Motorcycle Parts (2002–2007) Series 4: CB900-1100 (80-83) Series 5: CB650 (79-82) Series 6: CB500-CB550 (71-78) Series 7: CB400-CB450 (65-86)
Stock up on exhaust port gaskets for your CB650, CB400, CB450, or modern CB900F with this 10-pack, replacing OEM #18212-634-000 / #18291-236-000 / #18291-MN4-920.Key...
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2003 Honda CB900F 919 · Exhaust-Port Gaskets Buying guide

Order port gaskets by the joints being renewed

Honda lists four 18291-MN4-920 port gaskets on the original 2003 exhaust. Both offered products include that replacement reference, with either one or ten gaskets supplied; neither listing is a complete exhaust mounting kit.

Parts to consider

Honda CB Exhaust Headpipe Gasket (Each) ~ Replaces 18212-634-000 Individual exhaust-port gasketOne gasket; includes replacement reference 18291-MN4-920. Four original cylinder-head port positions.View part Honda CB Exhaust Headpipe Gaskets ~ (Pk/10) ~ Replaces 18212-634-000 Ten-pack exhaust-port gasketsTen port gaskets with the same listed application as the single; other exhaust-joint packings are separate.View part

Choose individual pieces or workshop quantity

One sold-each gasket supplies one cylinder-head port position. Four singles provide the original four-port set; a ten-pack supplies spares beyond one complete four-port job. The listed application is the same for both package sizes.

Match the seal to the actual connection

The original exhaust also has separately numbered muffler and rear pipe joint packings. Those are not included in either port-gasket listing. If a joint is damaged or an aftermarket system is fitted, check its parts requirements rather than assuming a new port gasket will solve the leak.

Practical questions

Is one ten-pack the normal gasket count for this motorcycle?

No. Ten is the package quantity. The original cylinder head has four exhaust-port gasket positions, so a complete four-port renewal uses four of these gaskets.

Can the individual gasket be used at a muffler connection?

Do not select it for that location merely because it is an exhaust gasket. It replaces the cylinder-head port seal; Honda's muffler and rear pipe connections have separate packing references.

Does the original four-port count prove these fit an aftermarket header?

No. Four describes the original headpipe-to-head seal positions, not every header's gasket design. Check the exhaust maker's sealing instructions and specified gasket reference before ordering; neither package size establishes compatibility.

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