When you need a small engine part, this is the site to shop. We have both OEM (Original Equipment Manufacturer) and "Replacement" parts made to perform at or above the original part specifications.


New Products




Proven Part GX390 Air Cleaner Wing Nut Air Cleaner Cover Nut (R

In Stock: 300

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Proven Part GX390 Air Cleaner Wing Nut Air Cleaner Cover Nut (R
Model: 007-PP-PF340O01-PF390
Manufacturer: ProvenPart

Price: $7.10


Weight: 0.25 lbs.

Date Added: Wednesday 04 March, 2026
ProvenPart Proven Part GX390 Air Cleaner Wing Nut Air Cleaner Cover Nut (Replaces Honda Part# 90203-Za0-800, 90203-Pb2-000) **Aftermarket Part** ... more info

Proven Part GX390 Muffler Protector Muffler Protector Comp (Rep

In Stock: 19

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Proven Part GX390 Muffler Protector Muffler Protector Comp (Rep
Model: 007-PP-PF340N02-PF390
Manufacturer: ProvenPart

Price: $15.65


Weight: 4 lbs.

Date Added: Wednesday 04 March, 2026
ProvenPart Proven Part GX390 Muffler Protector Muffler Protector Comp (Replaces Honda Part# 18320-Ze3-W01) **Aftermarket Part** Please check your ... more info

Proven Part GX390 Piston & Ring Set Piston Ring Set Replaces Ho

In Stock: 8

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Proven Part GX390 Piston & Ring Set Piston Ring Set Replaces Ho
Model: 007-PP-PF390E13
Manufacturer: ProvenPart

Price: $11.88


Weight: 1.5 lbs.

Date Added: Wednesday 04 March, 2026
ProvenPart Proven Part GX390 Piston & Ring Set Piston Ring Set Replaces Honda Part ... more info

Proven Part Intake and Exhaust Valves for GX340-GX390 Intake Val

In Stock: 10

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Proven Part Intake and Exhaust Valves for GX340-GX390 Intake Val
Model: 007-PP-PF340F14
Manufacturer: ProvenPart

Price: $14.45


Weight: 0.9 lbs.

Date Added: Wednesday 04 March, 2026
ProvenPart Proven Part Intake and Exhaust Valves for GX340-GX390 Intake Valve and Exhaust Valve Fits Honda GX340 and Honda GX390 Engines (Replaces ... more info

Proven Part Muffler Bolts GX240-GX270-GX340-GX390 Flange Nut M8

In Stock: 100

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Proven Part Muffler Bolts GX240-GX270-GX340-GX390 Flange Nut M8
Model: 007-PP-PF240N08_2
Manufacturer: ProvenPart

Price: $7.22


Weight: 0.25 lbs.

Date Added: Wednesday 04 March, 2026
ProvenPart Proven Part Muffler Bolts GX240-GX270-GX340-GX390 Flange Nut M8 2-Pack-Flange Nut M8 Replaces Honda Part 94050-08000 Fits ... more info

Proven Part Oil Protector Aftermarket Oil Protector Fits Ho

In Stock: 6

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Proven Part Oil Protector Aftermarket Oil Protector
Fits Ho

Model: 007-PP-PF240B14
Manufacturer: ProvenPart

Price: $7.92


Weight: 0.5 lbs.

Date Added: Wednesday 04 March, 2026
ProvenPart Proven Part Oil Protector Aftermarket Oil Protector Fits Honda GX240-GX270-GX340-GX390 Engines Replaces Honda Part 34150-Zh7-003 ... more info

Proven Part Rocker Assembly Set of 2 For GX340-GX390 Rocker Grou

In Stock: 3

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Proven Part Rocker Assembly Set of 2 For GX340-GX390 Rocker Grou
Model: 007-PP-PF340F13_2
Manufacturer: ProvenPart

Price: $8.55


Weight: 0.7 lbs.

Date Added: Wednesday 04 March, 2026
ProvenPart Proven Part Rocker Assembly Set of 2 For GX340-GX390 Rocker Group includes:Set of 2 Rocker Arms, Jam Nuts and Rocker Studs Fits Honda ... more info

Proven Part Valve Cover Kit GX240-GX270-GX340-GX390 Proven Part

In Stock: 24

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Proven Part Valve Cover Kit GX240-GX270-GX340-GX390 Proven Part
Model: 007-PP-PF240A16/T321
Manufacturer: ProvenPart

Price: $19.22


Weight: 2 lbs.

Date Added: Wednesday 04 March, 2026
ProvenPart Proven Part Valve Cover Kit GX240-GX270-GX340-GX390 Proven Part complete Valve Cover Kit for Honda GX240-GX270-GX340-GX390 Engines. ... more info

Proven Part Valve Set for GX240-GX270 Valve Set includes 1x Exha

In Stock: 15

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Proven Part Valve Set for GX240-GX270 Valve Set includes 1x Exha
Model: 007-PP-PF240F16
Manufacturer: ProvenPart

Price: $12.04


Weight: 0.25 lbs.

Date Added: Wednesday 04 March, 2026
ProvenPart Proven Part Valve Set for GX240-GX270 Valve Set includes 1x Exhaust Valve and 1x Intake Valve Please check your Owners manual for correct ... more info

Proven Part Valve Springs Set of 2 for GX340-GX390 2 Valve Sprin

In Stock: 8

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Proven Part Valve Springs Set of 2 for GX340-GX390 2 Valve Sprin
Model: 007-PP-PF340F08
Manufacturer: ProvenPart

Price: $8.25


Weight: 0.25 lbs.

Date Added: Wednesday 04 March, 2026
ProvenPart Proven Part Valve Springs Set of 2 for GX340-GX390 2 Valve Springs Fits Honda GX 340 11hp and GX390 13hp Engines Replaces Honda Part# ... more info


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