1978 Honda CB750K Gaskets & Engine Seals

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Honda CB750 shifter cover gasket 11395-300-303

1969-78 Honda CB750 Shifter Cover Gasket ~ Replaces 11395-300-303

$10.95 USD

Replace your SOHC CB750 shifter cover gasket with this Shifter Cover Gasket, replacing OEM #11395-300-303 / #11395-300-306.Key Features• Shifter cover gasket• Replaces OEM #11395-300-303...

Honda CB750 alternator cover gasket (dyno cover) 11397-300-306

1969-78 Honda CB750 Alternator Cover Gasket (Dyno Cover) ~ Replaces 11397-300-306

$14.95 USD

Replace the SOHC CB750 alternator (dyno) cover gasket with this Alternator Cover Gasket (Dyno Cover), replacing OEM #11397-300-306. Fits all 1969-1978 CB750 models.Key Features•...

Honda CB750 CB550 CB500 CB400 CB350 point plate gasket 30372-300-300

Honda CB Point Plate Gasket ~ Replaces 30372-300-300

$7.50 USD

Replace your Contact Point Plate Cover Gasket with this Point Plate Gasket, replacing OEM #30372-300-300. Broad fitment across the SOHC CB750, CB500K/CB550 family, and...

1969-78 Honda CB750 SOHC Oil Pump Rebuild Kit

$49.95 USD

Restore your oil pump's flow with this 11-Piece Oil Pump Rebuild Kit. Get your oil pump flowing at maximum capacity for a healthy engine...

Honda CB750 clutch cover gasket 11396-300-303

1969-78 Honda CB750 Clutch Cover Gasket ~ Replaces 11396-300-303

$13.95 USD

Rebuild your SOHC CB750's clutch cover with this Clutch Cover Gasket, replacing OEM #11396-300-303 / #11396-399-396 / #11396-399-060. Fits all 1969-78 CB750 models.Key Features•...

Honda CB750 CB400 CB350 shift shaft seal 14 x 28 x 7 91206-286-013

Honda CB Shift Shaft Seal ~ 14 x 28 x 7 ~ Replaces 91206-286-013

$4.61 USD

Replace your shift shaft seal with this Shift Shaft Seal, 14 x 28 x 7, replacing OEM #91206-286-013. High-quality, made in Japan.Key Features• Shift...

Honda CB750 engine oil seal kit made in japan with 8 seals 91205-300-005

1969-78 Honda CB750 Engine Oil Seal Kit

$44.95 USD

Rebuild your '69-'78 CB750 with this 8-piece Engine Oil Seal Kit, built to superior OEM quality and made in Japan. Covers the 1969-76 CB750K...

Honda CB750 cam valve cover gasket 12391-300-306

1969-78 Honda CB750 Cam / Valve Cover Gasket ~ Replaces 12391-300-306

$22.95 USD

Replace your SOHC CB750's cam/valve cover gasket with this Cam / Valve Cover Gasket, replacing OEM #12391-300-306.Key Features• Cam / valve cover gasket• Replaces...

1969-78 Honda CB750 SOHC Engine Bolt Set

$59.95 USD

Restore your CB750 engine fasteners with this Engine Bolt Set, 60 pieces. Includes 13 different bolt types and 2 allen keys.Key Features• Engine bolt...

Honda CB750 cam chain tensioner gasket 14592-300-396

1969-78 Honda CB750 Cam Chain Tensioner Gasket ~ Replaces 14592-300-396

$3.50 USD

Replace your SOHC CB750 cam chain tensioner gasket with this Cam Chain Tensioner Gasket, replacing OEM #14592-300-396.Key Features• Cam chain tensioner gasket• Replaces OEM...

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Honda CB1100 CB1000 CB900 exhaust headpipe gasket (each) 18291-MM5-860

Honda CB Exhaust Headpipe Gasket (Each) ~ Replaces 18291-MM5-860

$6.84 USD

Replace one cylinder-head-to-exhaust-headpipe gasket on your big-bore Honda with this Cylinder Head to Exhaust Headpipe Gasket, 1 piece, replacing OEM #18291-MM5-860. Exceptionally broad fitment...

Honda CB750 CB550 CB500 CB350 tach drive oil seal 4.8 x 14.5 x 4 91256-096-651

Honda CB750 / CB550 / CB500 / CB350 Tach Drive Oil Seal ~ 4.8 x 14.5 x 4 ~ Replaces 91256-096-651

$4.95 USD

Replace your tach drive oil seal with this Tach Drive Oil Seal, 4.8 x 14.5 x 4, replacing OEM #91256-096-651. High-quality, made in Japan.Key...

1969-78 Honda CB750 SOHC Overhaul Gasket Set

$144.95 USD

Rebuild your SOHC CB750 engine with this Overhaul Engine Gasket Set, fitting all CB750K, F, and P (Police) models from 1969-78. Set contains: 18-7001...

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Honda CB750 oil pan gasket (late) 11398-300-306

1969-78 Honda CB750 Oil Pan Gasket (Late) ~ Replaces 11398-300-306

$13.95 USD

Replace your late-type SOHC CB750 oil pan gasket with this Oil Pan Gasket (Late Type), replacing OEM #11398-300-306.Key Features• Oil pan gasket, late type•...

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1969-78 Honda CB750 SOHC Athena Engine Gasket Set

$179.95 USD

Rebuild your SOHC CB750 engine with this Athena Overhaul Gasket Set. Athena of Italy is an original-equipment supplier to Yamaha, Honda, Kawasaki, Suzuki, and...

Honda CB750 CB550 valve tappet cover gasket (set 8) 91302-001-020

Honda CB Valve Tappet Cover O-Ring (Set/8) ~ Replaces 91302-001-020

$15.95 USD

Replace your valve tappet cover O-rings with this Valve Tappet Cover O-Ring Set of 8, replacing OEM #91302-001-020. Designed for stock-type valve tappet covers...

Honda CB750 / CB550 / CB650 Cylinder Head Nut Cover

$3.74 USD

Restore the clean look of your cylinder head with this Rubber Cylinder Head Nut Cover, a replacement for OEM Ref. #91318-300-013. Fits all 1969-78...

Honda CB750 CB550 CB500 CB350 kickstart oil seal 18 x 29 x 7 91204-286-003

Honda CB750 / CB550 / CB500 / CB350 Kickstart Oil Seal ~ 18 x 29 x 7 ~ Replaces 91204-286-003

$4.95 USD

Replace your kickstart oil seal with this Kickstart Oil Seal, 18 x 29 x 7, replacing OEM #91204-286-003. High-quality, made in Japan.Key Features• Kickstart...

Honda CB750 starter motor cover gasket 31282-300-020

1969-78 Honda CB750 Starter Motor Cover Gasket ~ Replaces 31282-300-020

$5.80 USD

Replace your SOHC CB750 starter motor cover gasket with this Starter Motor Rubber Cover Gasket, replacing OEM #31282-300-020.Key Features• Starter motor rubber cover gasket•...

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Honda CB750 / CB400 Clutch Release Actuator Assembly

$69.95 USD

Restore your clutch system with this complete Clutch Release Actuator Assembly — a high-quality replacement that includes components to restore smooth clutch engagement. This...

Honda CB750A CB750F CB750K Athena gasket set (top end set only) 12191-300-030

1974-78 Honda CB750A / CB750F / CB750K Athena Gasket Set (Top End Set Only) ~ Replaces 12191-300-030

$134.95 USD

Freshen up the top end of your SOHC CB750 with this Athena Top End Gasket Set. Athena of Italy is an original-equipment supplier to...

Honda CB750 cam cover breather gasket 12329-300-020

1969-78 Honda CB750 Cam Cover Breather Gasket ~ Replaces 12329-300-020

$9.50 USD

Replace your SOHC CB750 cam cover breather gasket with this Cam Cover Breather Gasket (O-ring), replacing OEM #12329-300-020.Key Features• Cam cover breather gasket (O-ring)•...

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Honda CB750 cylinder base gasket 12191-300-306

1969-78 Honda CB750 Cylinder Base Gasket ~ Replaces 12191-300-306

$16.95 USD

Replace your SOHC CB750's cylinder base gasket with this Cylinder Base Gasket, replacing OEM #12191-300-306.Key Features• Cylinder base gasket• Replaces OEM #12191-300-306• Honda part...

Honda CB750 CB200 CB175 clutch arm seal 14 x 24 x 5 91202-KFL-841

Honda CB750 / CB200 / CB175 Clutch Arm Seal ~ 14 x 24 x 5 ~ Replaces 91202-KFL-841

$4.95 USD

Replace your clutch arm seal (sb type) with this Clutch Arm Seal (SB Type), 14 x 24 x 5, replacing OEM #91202-KFL-841. High-quality, made...

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Honda CB750 Economy Engine Oil Seal Kit

$21.15 $18.95 USD

You save $2.20

A complete engine oil seal kit for rebuilding your CB750's engine and keeping it leak-free. Sourcing individual seals for a full engine rebuild can...

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Honda CB750 CB400 clutch ball retainer 22860-300-006

Honda CB750 / CB400 Clutch Ball Retainer ~ Replaces 22860-300-006

$20.95 USD

Ensure smooth and consistent clutch engagement on your vintage Honda with this Clutch Ball Retainer — a quality replacement for OEM #22860‑300‑006. This essential...

Honda CB750A CB750F CB750K cylinder stud packing set (8PC) 12115-300-000

1972-78 Honda CB750A / CB750F / CB750K Cylinder Stud Packing Set (8pc) ~ Replaces 12115-300-000

$18.76 USD

Replace your cylinder head bolt stud packings with this 8-piece Cylinder Stud Packing Set (short tubular rubber seals that fit over dowels), replacing OEM...

Honda CB750 CB650 cylinder sleeve o-ring gasket set 91304-286-000

Honda CB Cylinder Sleeve O-Ring Gasket Set ~ Replaces 91304-286-000

$4.50 USD

Replace your cylinder sleeve O-rings with this Cylinder Sleeve O-Ring Set of 4, replacing OEM #91304-286-000.Key Features• Cylinder sleeve O-rings, 4 per set• Replaces...

Honda CB750 CB650 CB550 CB500 crank seal 30 x 42 x 8 91201-300-003

Honda CB Crank Seal ~ 30 x 42 x 8 ~ Replaces 91201-300-003

$7.00 USD

Replace your crank seal with this Crank Seal, 30 x 42 x 8, replacing OEM #91201-300-003. High-quality, made in Japan.Note: please reference the OEM...

Honda CB750 starting clutch gear seal 25 x 33 x 4 91215-300-003

1969-78 Honda CB750 Starting Clutch Gear Seal ~ 25 x 33 x 4 ~ Replaces 91215-300-003

$5.80 USD

Replace your starting clutch gear seal with this Starting Clutch Gear Seal, 25 x 33 x 4, replacing OEM #91215-300-003. High-quality, made in Japan.Key...

Honda CB750 cylinder head gasket 12251-300-050

1969-78 Honda CB750 Cylinder Head Gasket ~ Replaces 12251-300-050

$119.95 USD

Replace your SOHC CB750's cylinder head gasket with this Premium Athena Brand Cylinder Head Gasket, replacing OEM #12251-300-050.Key Features• Premium Athena cylinder head gasket•...

Honda CB750F CB750K countershaft sprocket oil seal 29.8 x 62 x 7 91205-405-005

1977-78 Honda CB750F / CB750K Countershaft Sprocket Oil Seal ~ 29.8 x 62 x 7 ~ Replaces 91205-405-005

$19.95 USD

Replace your countershaft sprocket oil seal with this Countershaft Sprocket Oil Seal, 29.8 x 62 x 7, replacing OEM #91205-405-005. High-quality, made in Japan.Key...

Honda CB750 engine oil seal kit made in japan with 7 seals 91205-405-005

1977-78 Honda CB750 Engine Oil Seal Kit

$34.95 USD

Seal up your 1977-78 CB750 rebuild with this 7-piece Engine Oil Seal Kit, superior OEM quality and made in Japan. Purpose-built for the late-'70s...

Honda CB750 oil pump gasket 15135-300-010

1969-78 Honda CB750 Oil Pump Gasket ~ Replaces 15135-300-010

$6.60 USD

Replace your SOHC CB750 oil pump gasket with this Oil Pump Gasket, replacing OEM #15135-300-010.Key Features• Oil pump gasket• Replaces OEM #15135-300-010• Honda part...

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1969-78 Honda CB750 Joker Machine Oil Tank Mounting Bushing Set/3

$79.95 USD

Clean up your exposed stock oil tank with this Joker Machine Oil Tank Mounting Bushing Set of 3. Designed for builds running no oil...

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1978 Honda CB750K · Gaskets & Oil Seals & Engine Hardware Buying guide

Choose the sealing package for the work planned

The Athena top-end set names its gaskets, O-rings and seals. The seven-piece engine oil seal kit serves other stated sealing points, and individual cover gaskets remain useful for smaller repairs.

Parts to consider

1974-78 Honda CB750A / CB750F / CB750K Athena Gasket Set (Top End Set Only) ~ Replaces 12191-300-030

Athena top-end gasket setLists cylinder base, head and cam cover gaskets, sleeve O-rings, nut covers, stud packings and other top-end sealing pieces.View part

Late-application engine oil seal setSeven shaft seals, including countershaft 91205-405-005 at 29.8 × 62 × 7 and shift-shaft reference 91206-286-013 at 14 × 28 × 7.View part

1969-78 Honda CB750 Cam / Valve Cover Gasket ~ Replaces 12391-300-306

Individual cam / valve cover gasketSeparate cover gasket listed against Honda reference 12391-300-306, useful when comparing a focused cover repair.View part

Compare top-end and overhaul contents

The featured top-end set names its own sealing pieces, including cylinder head nut covers. The separate overhaul set elsewhere in this route expressly excludes those covers and engine oil seals. Compare the actual lists rather than assuming that the word overhaul guarantees every item in another set.

Buy the sealing part for the correct location

The separate countershaft seal and seven-piece kit both identify 91205-405-005 at 29.8 × 62 × 7. The separate shift-shaft seal identifies 91206-286-013 at 14 × 28 × 7, also named in the kit. Compare the fitted seal and the other repair locations before buying the broader package for one leak.

Common questions

Would adding the stud-packing package duplicate either gasket set?

Both the Athena top-end set and overhaul set list eight cylinder stud packings. The separate eight-piece package replaces 12115-300-000. Check what the chosen gasket set already supplies before adding another package for the same work.

What extra gasket locations does the overhaul set name?

Beyond its top-end pieces, the overhaul set names oil-pan, alternator-cover, shift-cover, clutch-cover and oil-pump gaskets, among others. Compare that list with the assemblies being opened. It still expressly excludes engine oil seals and cylinder head nut covers.

Does the shaft-seal kit identify more than one crank sealing position?

Its contents name one crank seal, 91201-300-003, listed as 30 × 42 × 8. The remaining six pieces serve other named shafts and the starting-clutch gear. Check the particular leak and repair scope rather than assuming the package renews every crank sealing location.

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1978 Honda CB750K Gaskets & Engine Oil Seals

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