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Couplings & Drive Components

Couplings & Drive Components

Drive Couplings, Shaft Couplings, Flexible Couplers & Drivetrain Components

Shop couplings and drive components for inboard, sterndrive, transmission, shaft, and propulsion service. Find flexible couplings, shaft couplings, rubber couplings, coupling kits, coupling assemblies, DriveSaver-style parts, coupling elements, dampers, guards, yokes, and related driveline hardware.

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Fitment First

Couplings are fitment-specific. Confirm engine brand, transmission model, shaft size, bolt circle, spline count, pilot diameter, flange details, part number, and installation measurements before ordering.

Search Drive Couplings

Find the Correct Coupling

Search by Part Number, Coupling Style, Shaft Size, Transmission, or Drive Model

The safest match usually comes from the old part number, transmission plate, drive model, shaft details, or installation measurements. If the part number is missing, search by brand and coupling style.

Shop Couplings & Drive Components by Type

Flexible Couplings, Shaft Couplings, Kits, Guards & Dampers

Use these paths when the customer knows the coupling style or the drive problem being solved. Always confirm measurements and compatibility before installing driveline parts.

Flexible CouplingsFlexible couplers for vibration isolation, alignment tolerance, and gearbox-to-shaft connection support. Shaft CouplingsSplit shaft couplings, clamp couplings, flange couplings, and shaft interface parts. Drive CouplingsDrive couplings, output couplings, drive interface parts, and transmission connection support. Rubber CouplingsRubber dampening couplings and flexible connection parts for compatible driveline setups. Coupling AssembliesComplete coupling assemblies for sterndrive, outboard, and inboard applications. Coupling KitsKits and grouped components used for compatible coupling installation and service. Coupling ElementsReplacement coupling elements, flexible inserts, discs, and elastomer service parts. Coupling GuardsProtective guards and gear-guard style parts around compatible coupling installations. Roller DampersHigh-resilience damper components for compatible flexible coupling systems. Yokes & Drive LinksDouble yokes, drive links, splined couplings, and drive connection parts. Fiberglass CouplingsFiberglass reducer couplings, exhaust couplings, and lightweight connection parts. Brass CouplingsBrass pipe and flare union couplings for compatible plumbing and equipment connections.

Fitment

Measure the Interface, Not Just the Outside Diameter

Coupling fit can depend on shaft diameter, pilot diameter, bolt circle, bolt count, spline count, flange thickness, transmission output, engine flywheel setup, and available space. Photos and measurements are helpful when the part number is missing.

Shaft SizeBolt CircleSpline Couplings

Symptoms

Vibration, Noise, Alignment, and Wear Need Careful Diagnosis

A coupling may be part of a larger driveline issue. Check engine mounts, shaft alignment, propeller condition, cutless bearing wear, transmission output, strut alignment, and coupling condition before replacing parts blindly.

Engine MountsProp ShaftsTransmission Mounts
ALIGN

Alignment Matters

Flexible couplings can help absorb vibration, but they do not replace proper shaft alignment, mount condition, and drivetrain inspection.

SIZE

Confirm Measurements

Measure shaft diameter, flange pilot, bolt circle, bolt count, spline details, and available space before choosing a coupling.

LOAD

Match the Application

Horsepower, torque, gear ratio, shaft setup, transmission model, and service environment all affect the right coupling choice.

FAQ

Choosing Couplings & Drive Components

How do I identify the correct drive coupling?

Use the existing part number first. If it is not available, collect the engine brand, transmission model, shaft size, bolt circle, bolt count, spline count, pilot diameter, and clear photos of both sides of the coupling.

Are flexible couplings a fix for poor shaft alignment?

No. Flexible couplings can reduce vibration and absorb some movement, but the shaft, engine mounts, transmission, strut, and propeller still need to be aligned and inspected correctly.

When should a coupling element or damper be replaced?

Replace worn, cracked, swollen, oil-damaged, distorted, noisy, or loose elements. Also inspect related hardware when there is unusual vibration, impact history, or coupling wear.

Can the Parts Desk help match a coupling?

Yes. Send photos, the old part number, shaft and flange measurements, engine and transmission details, and a description of the driveline issue.

Ready to Match the Coupling or Drive Component?

Start with the old part number whenever possible. If not, measure the drivetrain interface carefully and search by brand, coupling type, transmission model, or shaft details.

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Filters

Volvo Penta Flexible Coupling | OEM 21882313

$1,651.00 - $1,651.00
$1,651.00
$1,651.00 - $1,651.00
$1,651.00
Only 1 left!

Volvo Penta OEM Flexible Coupling — Part No. 21882313Genuine Volvo Penta flexible coupling (drive plate / torsional damper) for D4 and D6 marine di...

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$1,651.00 - $1,651.00
$1,651.00
$1,651.00 - $1,651.00
$1,651.00

Volvo Penta 21827365 Shaft Coupling – 25mm Clamp-Type Inboard

$728.00 - $728.00
$728.00
$728.00 - $728.00
$728.00
Only 1 left!

Volvo Penta 21827365 is a genuine OEM clamp-type propeller shaft coupling for 25 mm shaft diameter inboard driveline installations. This two-piece ...

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$728.00 - $728.00
$728.00
$728.00 - $728.00
$728.00
Sold out

Volvo Penta Flexible Coupling

$1,474.00 - $1,474.00
$1,474.00
$1,474.00 - $1,474.00
$1,474.00
Out of stock

OEM Volvo Penta flexible coupling for marine drivetrain applications. Designed to absorb vibration and misalignment between engine and transmission...

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$1,474.00 - $1,474.00
$1,474.00
$1,474.00 - $1,474.00
$1,474.00
Sold out

Mercury Marine Coupling Assembly 816597A1

$28.69 - $28.69
$28.69
$28.69 - $28.69
$28.69
Only 1 left!

OEM Mercury Marine coupling assembly engineered for reliable connection and performance in marine drive systems. Precision-manufactured to Mercury ...

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$28.69 - $28.69
$28.69
$28.69 - $28.69
$28.69

Mercury Marine Coupling Kit 815956A1

$33.74 - $33.74
$33.74
$33.74 - $33.74
$33.74
Only 3 left!

OEM Mercury Marine coupling kit with all necessary components for complete installation. Precision-engineered to Mercury specifications for reliabl...

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$33.74 - $33.74
$33.74
$33.74 - $33.74
$33.74

Fairview IFC6400 (95) Coupling

$1,060.62 - $1,060.62
$1,060.62
$1,060.62 - $1,060.62
$1,060.62
Only 1 left!

Fairview IFC6400 (95) coupling engineered for reliable connection and performance in marine drive systems. Precision-manufactured for optimal fit a...

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$1,060.62 - $1,060.62
$1,060.62
$1,060.62 - $1,060.62
$1,060.62

Fairview Drive Coupling 1/2B IFC6100-95

$763.90 - $763.90
$763.90
$763.90 - $763.90
$763.90
Only 1 left!

Fairview IFC6100-95 drive coupling (1/2B) engineered for reliable connection and performance in marine drive systems. Precision-manufactured for op...

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$763.90 - $763.90
$763.90
$763.90 - $763.90
$763.90

Fairview Isoflex (95) Coupling IFC4300

$496.89 - $496.89
$496.89
$496.89 - $496.89
$496.89
Only 1 left!

Fairview Isoflex IFC4300 (95) coupling engineered for reliable vibration isolation and flexible connection in marine drive systems. Precision-manuf...

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$496.89 - $496.89
$496.89
$496.89 - $496.89
$496.89

Isoflex Flexible Coupling IFC640095

$1,060.62 - $1,060.62
$1,060.62
$1,060.62 - $1,060.62
$1,060.62
Only 1 left!

The IsoFlex Flexible Coupling IFC640095 is a high-performance marine driveline component designed to connect the gearbox output flange to the prope...

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$1,060.62 - $1,060.62
$1,060.62
$1,060.62 - $1,060.62
$1,060.62