Cub Cadet Small Engine 678-SU Parts

Shop replacement repair parts for Cub Cadet Small Engine model 678-SU

Brand:Cub Cadet

Model:678-SU

Product:Small Engine

Shop Parts Common Problems Diagrams & Manuals Related Videos

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110 results

Cub Cadet Small Engine Ignition Key

Genuine OEM Part # 951-10630 | RC Item #2027099

# 951-10630
RC Item #2027099

Skill Level (1)

We sell the real thing!

Watch Video

$8.21

Key for ignition on snow removal equipment

Cub Cadet Small Engine Fuel Cap

Genuine OEM Part # 951-12533 | RC Item #2119410

# 951-12533
RC Item #2119410

Skill Level (1)

We sell the real thing!

Watch Video

$26.77

Fuel Cap-Red. This cap has been re-designed by MTD and no longer has a foam baffle inside.

Cub Cadet Small Engine Choke Valve

Genuine OEM Part # 951-10639B | RC Item #5064140

# 951-10639B
RC Item #5064140

Skill Level (1)

We sell the real thing!

Watch Video

$19.18

Replacement primer bulb assembly

Cub Cadet Small Engine Gasket

Genuine OEM Part # 951-11348A | RC Item #4982861

# 951-11348A
RC Item #4982861

Skill Level (1)

We sell the real thing!

Watch Video

$7.63

Gasket-fuel bowl

Cub Cadet Small Engine Carburetor Gasket

Genuine OEM Part # 951-11223 | RC Item #1843681

# 951-11223
RC Item #1843681

Skill Level (2)

We sell the real thing!

Watch Video

$7.04

Carburetor gasket

Cub Cadet Small Engine Choke Knob

Genuine OEM Part # 951-11302 | RC Item #1843708

# 951-11302
RC Item #1843708

We sell the real thing!

Watch Video

$8.80

Choke knob

Cub Cadet Small Engine Control Knob

Genuine OEM Part # 951-11224 | RC Item #1843682

# 951-11224
RC Item #1843682

We sell the real thing!

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$9.98

Throttle Control Knob

Cub Cadet Small Engine Hose Connector

Genuine OEM Part # 951-10651 | RC Item #1843450

# 951-10651
RC Item #1843450

Skill Level (1)

We sell the real thing!

Watch Video

$17.50

Fuel tank nipple

Cub Cadet Small Engine Primer Bulb

Genuine OEM Part # 951-11824 | RC Item #1843940

# 951-11824
RC Item #1843940

Skill Level (1)

We sell the real thing!

Watch Video

$11.47

Primer bulb

Cub Cadet Small Engine Gasket

Genuine OEM Part # 951-11970 | RC Item #1843978

# 951-11970
RC Item #1843978

We sell the real thing!

Watch Video

$9.14

Fuel bowl gasket

Cub Cadet Small Engine Intake Manifold Gasket

Genuine OEM Part # 951-11225 | RC Item #1843683

# 951-11225
RC Item #1843683

We sell the real thing!

Watch Video

$5.28

Intake gasket

Cub Cadet Small Engine Starter Handle

Genuine OEM Part # 731-05696 | RC Item #1827100

# 731-05696
RC Item #1827100

Skill Level (1)

We sell the real thing!

Watch Video

$20.36

Starter handle

Cub Cadet Small Engine Recoil Starter

Genuine OEM Part # 951-11208 | RC Item #1843667

# 951-11208
RC Item #1843667

We sell the real thing!

Watch Video

$112.26

Recoil starter assembly

Cub Cadet Small Engine Washer

Genuine OEM Part # 736-04440A | RC Item #4995031

# 736-04440A
RC Item #4995031

We sell the real thing!

Watch Video

$8.32

Washer-flat

Cub Cadet Small Engine O-Ring

Genuine OEM Part # 921-04663A | RC Item #4979750

# 921-04663A
RC Item #4979750

We sell the real thing!

Watch Video

$6.60

Dipstick o-ring

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Cub Cadet 678-SU Problems & Repair Solutions

There are only a handful of issues that crop up with most appliances and equipment. Since 1912, we've learned to recognize the most common Cub Cadet 678-SU problems ― and their solutions. Do any of these look familiar?

Small engine won't start

3 possible causes and potential solutions

Video

Small engine stops after a few seconds

2 possible causes and potential solutions

Video

Small engine runs poorly

1 possible causes and potential solutions

Video

VIEW ALL COMMON PROBLEMS Shop All Cub Cadet Small Engine Parts

Frequently Purchased Together For This Model

$8.21

$26.77

$19.18

$7.63

678-SU Parts

Maintain and repair your Cub Cadet 678-SU Small Engine efficiently with genuine Cub Cadet 678-SU replacement parts from Repair Clinic. Our extensive inventory includes parts for all common 678-SU repairs, ensuring you have everything needed for a successful fix.

Search by model number, part category, part title, or specific symptoms to locate the right parts for your 678-SU. Use detailed parts diagrams, repair help guides, and manuals to guide your repair process. Repair Clinic provides troubleshooting tips and videos to resolve common issues and keep your equipment running like new.

Why Choose Repair Clinic for 678-SU Parts?

Genuine Cub Cadet replacement parts
Same-day shipping on in-stock items
365-day, no-hassle return policy
Price match guarantee

Repair your Cub Cadet 678-SU Small Engine with reliable replacement parts and expert support from Repair Clinic. Order today and ensure your Small Engine stays in top condition.

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