13401-P5M-000 FR Balancer Shaft | Genuine Used Part

🔧 Product Description

Genuine Used Honda BF115A / BF130A Front Balancer Shaft - Part Number: 13401-P5M-000

A genuine pre-owned Honda Marine front balancer shaft for selected BF115A and BF130A inline four-cylinder outboards.

The shaft forms one half of the engine's counter-rotating balancer system. It rotates in a timed relationship with the crankshaft and rear balancer shaft to reduce secondary vibration.

⚙️ Key Features

• Genuine Honda Marine used front balancer shaft
• Correct OEM part number 13401-P5M-000
• Suitable for selected BF115A and BF130A engines
• Counter-rotating vibration-control component
• Works with rear shaft 13400-PT3-010
• Original precision-machined Honda shaft

🚤 Compatibility

Commonly used on

• Honda BF115A four-stroke outboards
• Honda BF130A four-stroke outboards
• Honda inline four-cylinder balancer-shaft systems

Typically suits selected

• BF115AX and BF115AY
• BF115A1 through BF115A5
• BF130AX and BF130AY
• BF130A1 through BF130A4
• Horsepower Range: 115HP - 130HP
• Engine Type: Inline four-cylinder four-stroke
• Representative Production Period: Approximately 1999-2007

Important fitment note

• Confirm the shaft number and pulley arrangement.
• The rear balancer shaft and gear case are separate components.
• Incorrect balancer timing can increase vibration and damage the belt or bearings.

🔌 Function

The front balancer shaft carries an offset counterweight that produces an opposing vibration force as it rotates.

Working with the rear shaft, it reduces the second-order vibration naturally produced by an inline four-cylinder engine.

⚠️ Common Signs of Failure

• Excessive engine vibration
• Rumbling or knocking noise
• Worn shaft journals
• Scored bearing surfaces
• Bent shaft
• Excessive end float
• Damaged driven pulley
• Balancer belt tracks incorrectly
• Metal particles in the oil
• Oil leakage around the balancer cover

🛠️ Service Notes

Recommended checks before installation

• Inspect every journal
• Measure shaft runout
• Check end float
• Inspect the pulley keyway and mounting surfaces
• Check the balancer belt and tensioner
• Inspect the case and bearing surfaces
• Replace associated seals and O-rings
• Align all balancer timing marks
• Rotate the engine manually before starting

🔄 Supersession & Cross Reference

OEM Supersession Chain

• No verified superseding part number identified

OEM / Related Numbers

• 13401-P5M-000
• 13401P5M000
• OEM Description: Shaft, Front Balancer
• Rear balancer shaft: 13400-PT3-010
• Front driven pulley: 13402-ZW5-003
• Balancer gear case: 13500-ZW5-000
• Balancer-shaft cover: 13421-ZW5-000
• Balancer-cover O-ring: 13422-ZW5-000

Aftermarket / Verified Equivalents

• No aftermarket equivalent

📦 Condition

• Genuine Honda Marine used part
• Pre-owned internal engine component
• Oil staining and normal handling marks may be present
• Journal and bearing-surface inspection is required
• Included pulley and hardware are limited to those shown or described
• Supplied in protective or equivalent packaging