20586597 Main Bearing Kit | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta 0.50mm repair-size D16 crankshaft main-bearing pair - Part Number: 20586597

A genuine Volvo Penta repair-size main-bearing kit for the 16.1-litre D16 crankshaft. This kit is the 0.50mm bearing grade used after the crankshaft journal has been professionally reground by the corresponding amount.

Applicable through engine serial 002476 inclusive. Volvo catalogues each part number as one upper-and-lower bearing pair for one journal, not as a complete seven-journal engine set. Thrust washers are separately serviced and are not included.

⚙️ Key Features

• Genuine Volvo Penta 0.50mm D16 main-bearing repair kit

• Main bearings for all seven crankshaft journals on engines through serial 002476

• Precision matched upper and lower bearing half-shells

• Required engine quantity: 7 kits

• Designed for the 16123cc inline-six D16 crankshaft

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 20586597 current OEM 0.50mm repair-grade reference for the stated serial and journal position

• 0.75mm repair-grade references exist in the same bearing family but are obsolete in several catalogues

OEM / Related Numbers:

• 20586597

• 8131247 / 22235130 related D16 crankshaft, revision dependent

• 270929 standard thrust-washer kit - separately serviced

• 270930 +0.10mm thrust-washer kit - separately serviced

• 270931 +0.20mm thrust-washer kit - separately serviced

• 270932 +0.30mm thrust-washer kit - separately serviced

Aftermarket / Verified Equivalents:

• Aftermarket D16 main-bearing sets sold by Volvo reference 20586597 - verify 0.50mm repair grade and early seven-journal design

• Kolbenschmidt / Glyco D16 repair-bearing programme - match 0.50mm grade and early serial design

📦 Kit Contents

• 20586597 upper main-bearing half-shell - 1

• 20586597 lower main-bearing half-shell - 1

• 20586597 matched bearing pair for one crankshaft journal - 1 set

• Volvo Penta does not allocate separate service part numbers to the two half-shells; both pieces are supplied and serviced under kit number 20586597

• Thrust washers, crankshaft and installation lubricants are not included

🚤 Compatibility

Commonly used on:

• Volvo Penta D16 industrial, generating-set and heavy-equipment crank mechanisms

• D16 marine-commercial engine versions using the same serial-controlled crankshaft bearing arrangement

Typically suits:

• Engine models / systems:

• Volvo Penta TAD1640GE, TAD1641GE, TAD1642GE and TAD1643GE

• Volvo Penta TAD1640VE, TAD1641VE, TAD1642VE and TAD1643VE

• Volvo Penta TAD1640VE-B, TAD1641VE-B and TAD1642VE-B

• Volvo Penta TAD1650GE, TAD1651GE, TAD1650VE and TAD1650VE-B

• Volvo Penta TAD1660VE, TAD1661VE and TAD1662VE

• Volvo Penta TAD1670VE, TAD1671VE and TAD1672VE

• Volvo Penta TWD1643GE, TWD1644GE and TWD1645GE

• Volvo Penta TWD1652GE, TWD1653GE and TWD1663GE

• Volvo Penta TWD1672GE, TWD1673GE and TWD1683GE

• Volvo Penta D16C-A MG / D16C-A MG RC where the crank-mechanism catalogue specifies the listed repair grade

• HP Range: Approximately 530HP - 810HP, dependent on D16 engine rating

• Engine Type: Volvo Penta 16.1-litre inline 6-cylinder, 24-valve turbocharged diesel

• Year Range: Approximately 2003 - 2020s

• Fitment Note: Use only on engines through serial 002476. A complete six-cylinder engine requires seven 20586597 kits—one bearing pair per main journal.

🔌 Function

The two half-shells support one crankshaft main journal on a pressurised oil film, maintaining crankshaft alignment and carrying combustion and rotating loads.

Common signs of failure:

• Low engine-oil pressure or metallic bearing debris is present

• Crankshaft main-journal clearance exceeds specification

• Bearing overlay is wiped, scored, fatigued or heat-discoloured

• Main-bearing knock develops under load

• A reground crankshaft has been fitted with the wrong repair-grade shell

📦 Condition

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging