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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.

Shop Couplings & Drive Components Browse Couplings Ask Parts Desk
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.

Shop Couplings & Drive ComponentsAsk Parts Desk

Filters

Mercury Cap-Oil Reservoir 865448A01

$12.88 - $12.88
$12.88
$12.88 - $12.88
$12.88
Only 1 left!

Mercury MerCruiser 865448A01 is a genuine OEM oil reservoir cap used on Mercury / MerCruiser trim pump reservoir assemblies. Current Mercury dealer...

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$12.88 - $12.88
$12.88
$12.88 - $12.88
$12.88
Sold out

Mercury MerCruiser Quicksilver Alpha Upper Gear Set 18411A2 – 22/20T, 1.50 / 1.47 Ratio

$953.48 - $953.48
$953.48
$953.48 - $953.48
$953.48
Out of stock

Overview Part Number: 18411A2 (service format: 43-18411A2) Brand: Mercury / Quicksilver Official Product Type: Upper Gear Set Supersedes: 59832A2 R...

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$953.48 - $953.48
$953.48
$953.48 - $953.48
$953.48
Sold out
Sold out

Volvo Penta Complete Universal Joint Assembly 3862425 | DPH-E D4 D6 OEM

$2,136.00 - $2,136.00
$2,136.00
$2,136.00 - $2,136.00
$2,136.00
Out of stock

Volvo Penta Complete Universal Joint Assembly – 3862425 Part Information Part Number: 3862425 Brand: Volvo Penta Official Product Type: Univer...

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$2,136.00 - $2,136.00
$2,136.00
$2,136.00 - $2,136.00
$2,136.00
Sold out
Sold out

Velvet Drive 5-Inch Output Coupling A4547HA | 10-Tooth Coarse Spline

$740.82 - $740.82
$740.82
$740.82 - $740.82
$740.82
Out of stock

Velvet Drive 5-Inch Output Coupling A4547HA — 10-Tooth Coarse Spline Part Number A4547HA Brand Velvet Drive / BorgWarner Official Prod...

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$740.82 - $740.82
$740.82
$740.82 - $740.82
$740.82
Sold out

Mercury MerCruiser Bracket 19686 – OEM Engine & Drive Mounting Hardware

$15.60 - $15.60
$15.60
$15.60 - $15.60
$15.60
Only 1 left!

Mercury MerCruiser Bracket 19686 Part Number: 19686  |  Type: OEM Engine & Drive Mounting Bracket Genuine Mercury MerCruiser OEM mounting bra...

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$15.60 - $15.60
$15.60
$15.60 - $15.60
$15.60

Mercury MerCruiser Quicksilver 16792A39 Power Steering Pump — Without Pulley

$1,408.88 - $1,408.88
$1,408.88
$1,408.88 - $1,408.88
$1,408.88
Item locally warehoused

Mercury MerCruiser Quicksilver 16792A39 — Power Steering Pump, Without Pulley Part Number 16792A39 SKU 16792A39 Brand Mercu...

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$1,408.88 - $1,408.88
$1,408.88
$1,408.88 - $1,408.88
$1,408.88

Mercury MerCruiser Quicksilver 18922 Oil Reservoir Connector — Alpha One Gen II / Bravo Sterndrive

$49.34 - $49.34
$49.34
$49.34 - $49.34
$49.34
Only 1 left!

Mercury MerCruiser Quicksilver 18922 — Oil Reservoir Connector, Alpha One Gen II / Bravo Sterndrive Part Number 18922 Service For...

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$49.34 - $49.34
$49.34
$49.34 - $49.34
$49.34

Mercury MerCruiser Quicksilver 18903T Rear Transmission Mounting Bracket — Hurth Inboard Applications

$153.35 - $153.35
$153.35
$153.35 - $153.35
$153.35
Only 2 left!

Mercury MerCruiser Quicksilver 18903T — Rear Transmission Mounting Bracket, Hurth Inboard Part Number 18903T Current Replacement ...

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$153.35 - $153.35
$153.35
$153.35 - $153.35
$153.35
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Volvo Penta Sliding Sleeve / Cone Clutch 3849006 – DPH / DPR Sterndrive

$485.00 - $485.00
$485.00
$485.00 - $485.00
$485.00
Out of stock

Volvo Penta 3849006 – Sliding Sleeve / Cone Clutch Part Number: 3849006 Brand: Volvo Penta (Genuine OEM) Type: Sliding Sleeve / Cone Clutch System:...

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$485.00 - $485.00
$485.00
$485.00 - $485.00
$485.00
Sold out

Volvo Penta 23000185 Propeller Cone Kit – H-Series Duoprop Spinner

$170.00 - $170.00
$170.00
$170.00 - $170.00
$170.00
Only 2 left!

Volvo Penta 23000185 – Propeller Cone Kit for H-Series Duoprop Propellers Part Number: 23000185 Brand: Volvo Penta Official Product Type: Propelle...

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$170.00 - $170.00
$170.00
$170.00 - $170.00
$170.00
Sold out

Volvo Penta IPS10-A Upper Gear 22734346

$15,500.00 - $15,500.00
$15,500.00
$15,500.00 - $15,500.00
$15,500.00
Out of stock

Volvo Penta IPS10-A Upper Gear — OEM Part 22734346 The Volvo Penta IPS10-A Upper Gear 22734346 is a genuine OEM upper gear assembly used in the Vo...

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$15,500.00 - $15,500.00
$15,500.00
$15,500.00 - $15,500.00
$15,500.00
Sold out

Volvo Penta Steering Helmet Bushing 24691607 | OEM Sterndrive

$146.00 - $146.00
$146.00
$146.00 - $146.00
$146.00
Only 1 left!

Part Information Part Number: 24691607 Brand: Volvo Penta Official Product Type: Bushing — Steering Helmet / Pivot Assembly Supersedes: 853048...

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$146.00 - $146.00
$146.00
$146.00 - $146.00
$146.00
Sold out

Volvo Penta Complete Duoprop Gear Housing 22227295 – DPS-B1 DPS-D

$11,800.00 - $11,800.00
$11,800.00
$11,800.00 - $11,800.00
$11,800.00
Out of stock

Part Number: 22227295Brand: Volvo PentaOfficial Product Type: Complete Duoprop Lower Gear HousingSystem: DPS Sterndrive – Duoprop Lower GearcaseGea...

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$11,800.00 - $11,800.00
$11,800.00
$11,800.00 - $11,800.00
$11,800.00
Sold out
Sold out

Volvo Penta Bearing Box 22173381 – DPH DPR Sterndrive

$571.00 - $571.00
$571.00
$571.00 - $571.00
$571.00
Out of stock

Part Number: 22173381Brand: Volvo PentaOfficial Product Type: Bearing Box / Bearing HousingSystem: Sterndrive Driveline – Drive Shaft & Bearing...

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$571.00 - $571.00
$571.00
$571.00 - $571.00
$571.00
Sold out
Sold out

Volvo Penta Compressor Belt Tensioner 22171036 – D4 D6

$764.00 - $764.00
$764.00
$764.00 - $764.00
$764.00
Out of stock

Part Number: 22171036Brand: Volvo PentaOfficial Product Type: Automatic Belt Tensioner – Compressor / Supercharger DriveSystem: Compressor / Superc...

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$764.00 - $764.00
$764.00
$764.00 - $764.00
$764.00
Sold out
Sold out

Volvo Penta Gear Housing – OEM Part 21658888

$11,800.00 - $11,800.00
$11,800.00
$11,800.00 - $11,800.00
$11,800.00
Out of stock

Volvo Penta Gear Housing – OEM Part 21658888 Part Number: 21658888 Brand: Volvo Penta System: Sterndrive / Lower Drive Assembly Engine Family: Vol...

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$11,800.00 - $11,800.00
$11,800.00
$11,800.00 - $11,800.00
$11,800.00
Sold out
Sold out

Volvo Penta Roller Bearing 184849 | IPS Lower Gear Unit OEM

$276.00 - $276.00
$276.00
$276.00 - $276.00
$276.00
Out of stock

Volvo Penta 184849 – Roller Bearing Part Number: 184849  |  Brand: Volvo Penta  |  Type: OEM Roller Bearing  |  Sold: Individually This is the ge...

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$276.00 - $276.00
$276.00
$276.00 - $276.00
$276.00
Sold out
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Volvo Penta Lip Seal 21535352 | OEM IPS Intermediate Housing Seal

$529.00 - $529.00
$529.00
$529.00 - $529.00
$529.00
Out of stock

Volvo Penta Lip Seal — Part #21535352 This is the genuine OEM lip seal for the intermediate housing of Volvo Penta IPS drive systems. Positioned w...

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$529.00 - $529.00
$529.00
$529.00 - $529.00
$529.00
Sold out

Volvo Penta IPS Shift Control Solenoid Valve 11418522

$666.00 - $666.00
$666.00
$666.00 - $666.00
$666.00
Only 1 left!

Volvo Penta IPS Shift Control Solenoid Valve — Part No. 11418522 This is the genuine OEM Volvo Penta shift control solenoid valve for compatible IP...

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$666.00 - $666.00
$666.00
$666.00 - $666.00
$666.00

Mercury MerCruiser Bearing 35246 | Genuine OEM Old Stock (NLA)

$239.97 - $239.97
$239.97
$239.97 - $239.97
$239.97
Only 1 left!

Mercury MerCruiser Bearing — Part No. 35246 | Genuine OEM Old Stock This is a genuine Mercury Marine OEM bearing, part number 35246, available from...

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$239.97 - $239.97
$239.97
$239.97 - $239.97
$239.97
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Mercury MerCruiser Wear Pad 879346T30 | OEM Drive Component

$11.69 - $11.69
$11.69
$11.69 - $11.69
$11.69
Out of stock

Mercury MerCruiser Wear Pad 879346T30 Part Number: 879346T30 Brand: Mercury / MerCruiser / Quicksilver Official Product Type: Wear Pad — OEM Drive ...

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$11.69 - $11.69
$11.69
$11.69 - $11.69
$11.69
Sold out
Sold out

Volvo Penta Hydraulic Trim Manifold Block 3852559

$742.00 - $742.00
$742.00
$742.00 - $742.00
$742.00
Out of stock

The Volvo Penta 3852559 is an OEM hydraulic manifold block used in SX-style sterndrive power trim systems. It distributes trim oil from the trim pu...

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$742.00 - $742.00
$742.00
$742.00 - $742.00
$742.00
Sold out

Volvo Penta Drive Unit 22491362 - Special Order

$18,070.00 - $18,070.00
$18,070.00
$18,070.00 - $18,070.00
$18,070.00

The Volvo Penta Drive Unit 22491362 is a genuine Volvo Penta DPS-D OX / OceanX DuoProp drive unit with a 2.32:1 gear ratio. It is used in Volvo Pen...

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$18,070.00 - $18,070.00
$18,070.00
$18,070.00 - $18,070.00
$18,070.00

Volvo Penta Drive Unit 22491361 - Special Order

$18,070.00 - $18,070.00
$18,070.00
$18,070.00 - $18,070.00
$18,070.00

The Volvo Penta Drive Unit 22491361 is a genuine Volvo Penta DPS-D OX / OceanX DuoProp drive unit with a 2.14:1 gear ratio. It is used in Volvo Pen...

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$18,070.00 - $18,070.00
$18,070.00
$18,070.00 - $18,070.00
$18,070.00
Sold out

Mercury MerCruiser Bellows Assembly 816431A1

$165.39 - $165.39
$165.39
$165.39 - $165.39
$165.39
Out of stock

Protect your MerCruiser stern drive from water intrusion with the Mercury MerCruiser Bellows Assembly 816431A1 — a genuine OEM replacement bellows ...

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$165.39 - $165.39
$165.39
$165.39 - $165.39
$165.39
Sold out
Sold out

Mercury MerCruiser Keyed Washer 18323

$37.34 - $37.34
$37.34
$37.34 - $37.34
$37.34
Out of stock

Mercury MerCruiser Quicksilver 18323 is a genuine keyed tab washer used in selected Mercury and MerCruiser assemblies where a keyed locking washer ...

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$37.34 - $37.34
$37.34
$37.34 - $37.34
$37.34
Sold out

Yamaha F115 25" Drive Shaft Assembly - 68V-45501-30-00

$614.37 - $614.37
$614.37
$614.37 - $614.37
$614.37
Only 1 left!

The Yamaha 68V-45501-30-00 is a genuine Yamaha OEM drive shaft assembly used in select Yamaha F115 and LF115 outboard lower-unit assemblies. This v...

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$614.37 - $614.37
$614.37
$614.37 - $614.37
$614.37

LOWER UNIT ADAPTOR FITTING

$17.65 - $17.65
$17.65
$17.65 - $17.65
$17.65
6 in stock

LOWER UNIT ADAPTOR FITTING

$17.65 - $17.65
$17.65
$17.65 - $17.65
$17.65

BELLOWS (OLD#340671)

$242.28 - $242.28
$242.28
$242.28 - $242.28
$242.28
90 in stock

BELLOWS (OLD#340671)

$242.28 - $242.28
$242.28
$242.28 - $242.28
$242.28

SHIFT CABLE BELLOWS

$32.65 - $32.65
$32.65
$32.65 - $32.65
$32.65
12 in stock

SHIFT CABLE BELLOWS

$32.65 - $32.65
$32.65
$32.65 - $32.65
$32.65

BELLOWS (AP-1520)

$77.25 - $77.25
$77.25
$77.25 - $77.25
$77.25
22 in stock

BELLOWS (AP-1520)

$77.25 - $77.25
$77.25
$77.25 - $77.25
$77.25

Volvo Penta Martyr Aluminum Anode SX-A DPX – CMT-873395A

$14.28 - $14.28
$14.28
$14.28 - $14.28
$14.28
Only 1 left!

Martyr Aluminum Anode – CMT-873395AMartyr aluminum sacrificial anode for Volvo Penta SX-A and DPX sterndrive units. Protects the drive from galvani...

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$14.28 - $14.28
$14.28
$14.28 - $14.28
$14.28

West Marine 10" Crush Sleeve - CEN-1200588

$493.42 - $493.42
$493.42
$493.42 - $493.42
$493.42
Only 2 left!

Premium 10-inch crush sleeve designed for marine transmission and drive system installations. This precision-engineered component ensures proper be...

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$493.42 - $493.42
$493.42
$493.42 - $493.42
$493.42

Volvo Penta Propeller Shaft Bearing Inner Ring 984225 | DPH DPR Lower Unit

$85.00 - $85.00
$85.00
$85.00 - $85.00
$85.00
Only 1 left!

Part Details Part Number: 984225 Brand: Volvo Penta Type: Inner ring — propeller shaft roller bearing assembly System: Sterndrive lower unit —...

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$85.00 - $85.00
$85.00
$85.00 - $85.00
$85.00
Sold out

Volvo Penta Bellows Kit - SKU 876294

$130.00 - $130.00
$130.00
$130.00 - $130.00
$130.00
Out of stock

Volvo Penta Bellows Kit – 876294 OEM Part Number: 876294Part Type: U-Joint / Driveshaft Bellows KitApplication: Sterndrive driveshaft sealing syste...

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$130.00 - $130.00
$130.00
$130.00 - $130.00
$130.00
Sold out

Volvo Penta Lock Ring 872522

$14.00 - $14.00
$14.00
$14.00 - $14.00
$14.00
Only 1 left!

The Volvo Penta Lock Ring 872522 is a genuine OEM retaining ring used to secure internal components within Volvo Penta gear sets and driveline ...

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$14.00 - $14.00
$14.00
$14.00 - $14.00
$14.00

Volvo Penta Bushing 872363

$53.00 - $53.00
$53.00
$53.00 - $53.00
$53.00
Only 1 left!

The Volvo Penta 872363 is a genuine OEM steering fork / shield bushing used in Volvo Penta sterndrive assemblies. This bushing provides a wear surf...

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$53.00 - $53.00
$53.00
$53.00 - $53.00
$53.00

Volvo Penta Spacer Sleeve 872355

$17.80 - $17.80
$17.80
$17.80 - $17.80
$17.80
Only 1 left!

The Volvo Penta 872355 spacer sleeve is a genuine OEM alignment component used to maintain correct spacing and positioning between mounted parts wi...

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$17.80 - $17.80
$17.80
$17.80 - $17.80
$17.80

Volvo Penta Line Cutter 872082

$168.00 - $168.00
$168.00
$168.00 - $168.00
$168.00
Only 3 left!

The Volvo Penta 872082 line cutter is a genuine OEM prop shaft-mounted cutting ring designed to protect sterndrive seals and driveline components f...

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$168.00 - $168.00
$168.00
$168.00 - $168.00
$168.00

Volvo Penta Bushing 853048

$130.00 - $130.00
$130.00
$130.00 - $130.00
$130.00
Only 1 left!

Volvo Penta 853048 is a genuine OEM bushing used in Volvo Penta sterndrive applications. Current parts references identify 853048 simply as “bushin...

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$130.00 - $130.00
$130.00
$130.00 - $130.00
$130.00

Volvo Penta Driving Wheel – 852984

$140.00 - $140.00
$140.00
$140.00 - $140.00
$140.00
Only 2 left!

Volvo Penta 852984 is a genuine OEM driving wheel / trim indicator gear wheel used in select Volvo Penta sterndrive applications. Public parts list...

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$140.00 - $140.00
$140.00
$140.00 - $140.00
$140.00

Volvo Penta Bushing 852912

$90.00 - $90.00
$90.00
$90.00 - $90.00
$90.00
Only 1 left!

Volvo Penta 852912 is a genuine OEM bushing used in Volvo Penta sterndrive and transom-shield related applications. Current parts references identi...

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$90.00 - $90.00
$90.00
$90.00 - $90.00
$90.00

Volvo Penta Magnetic Plug 852904

$101.00 - $101.00
$101.00
$101.00 - $101.00
$101.00
Only 1 left!

Volvo Penta 852904 is a genuine OEM magnetic plug used in Volvo Penta sterndrive and marine propulsion applications. Volvo Penta's official parts c...

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$101.00 - $101.00
$101.00
$101.00 - $101.00
$101.00
Sold out

Volvo Penta Upper Gear Housing Gasket Kit 3888917 | SX-A DPS-A DPS-B FWD OEM

$212.00 - $212.00
$212.00
$212.00 - $212.00
$212.00
Out of stock

Volvo Penta Upper Gear Housing Gasket Kit – 3888917 Part Information Part Number: 3888917 Brand: Volvo Penta Official Product Type: Upper Gear...

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$212.00 - $212.00
$212.00
$212.00 - $212.00
$212.00
Sold out

Volvo Penta IPS Lower Gear Unit Driveshaft 3863373

$1,516.00 - $1,516.00
$1,516.00
$1,516.00 - $1,516.00
$1,516.00
Only 1 left!

Volvo Penta 3863373 is a genuine OEM shaft / driveshaft used in the lower gear unit of Volvo Penta IPS drives. Current Volvo Penta parts sources li...

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$1,516.00 - $1,516.00
$1,516.00
$1,516.00 - $1,516.00
$1,516.00

Volvo Penta Ground Cable 3863269

$12.70 - $12.70
$12.70
$12.70 - $12.70
$12.70
Only 2 left!

Volvo Penta 3863269 is a genuine OEM ground cable used in Volvo Penta sterndrive service. The strongest current public application trail places thi...

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$12.70 - $12.70
$12.70
$12.70 - $12.70
$12.70

Volvo Penta Nut 3862390

$55.90 - $55.90
$55.90
$55.90 - $55.90
$55.90
Only 4 left!

The Volvo Penta 3862390 Nut is a genuine OEM fastener listed by Volvo Penta as nut. It is intended for selected Volvo Penta marine applications whe...

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$55.90 - $55.90
$55.90
$55.90 - $55.90
$55.90

Volvo Penta DPH DPR Sterndrive Sealing Ring 3862252

$18.50 - $18.50
$18.50
$18.50 - $18.50
$18.50
Only 1 left!

Volvo Penta 3862252 is a genuine OEM sealing ring used in Volvo Penta DPH and DPR sterndrive service. Current Volvo Penta parts sources list it sim...

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$18.50 - $18.50
$18.50
$18.50 - $18.50
$18.50