183801 Ball | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta Ball - Part Number: 183801

This genuine Volvo Penta ball is a hardened selector, detent or check-valve element used in the HS1A control-valve or selector detent mechanism. It is manufactured to the original Volvo dimensional, material and interface requirements so the serviced assembly retains its designed alignment, sealing, load capacity and operating reliability. In service, it forms the hardened spherical contact in the HS1A detent/control mechanism to locate the selected operating position. Selection must be confirmed by OEM part number 183801, the exact engine/product model, serial number and installed configuration.

⚙️ Key Features

• Genuine Volvo Penta OEM ball

• OEM part number 183801

• Documented application: HS1A control-valve or selector detent mechanism

• Validated family: Volvo Penta HS1A hydraulic reverse gear

• Primary function: Forms the hardened spherical contact in the HS1A detent/control mechanism to locate the selected operating position.

• Inspect the ball, spring and mating seat together; renew worn related components and verify positive selector or valve engagement after assembly.

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 183801 (current/original OEM service reference)

OEM / Related Numbers:

• 183801

• 872586 compression spring

Aftermarket / Verified Equivalents:

• No aftermarket equivalent

🚤 Compatibility

Commonly used on:

• HS1A control-valve or selector detent mechanism

Typically suits:

• Engine / product models:

• HS1A

• KAD42B/HS1A ratio 2.62

• Engine / Application Family: Volvo Penta HS1A hydraulic reverse gear

• Serial / Configuration Note: Confirm part number 183801 against the exact transmission/control-valve version and the matching spring, bore and selector arrangement.

🔌 Function

Forms the hardened spherical contact in the HS1A detent/control mechanism to locate the selected operating position. Inspect the ball, spring and mating seat together; renew worn related components and verify positive selector or valve engagement after assembly.

Common signs of failure:

• Selector does not hold the commanded position

• Excessive free movement or vague engagement feel

• Ball or mating seat is pitted, flattened or corroded

• Spring-loaded detent action is weak, sticking or intermittent

• Metal debris or wear marks are present in the selector/control bore

📦 Condition

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging