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Transmissions & Components

Marine Transmissions & Components

Marine Transmissions, Gearboxes, Damper Plates, Seals & Service Parts

Shop marine transmission parts, gearbox components, Velvet Drive and Borg-Warner parts, ZF and Hurth service items, damper plates, gasket and seal kits, transmission oil, coolers, controls, and drivetrain service components.

Shop Transmissions & Components Velvet Drive ZF Marine
Fitment Check

Match the transmission model, ratio, serial plate, rotation, part number, engine package, and service manual before ordering gearbox parts.

Ask Parts Desk

Transmission parts are highly fitment-specific. Confirm Borg-Warner, Velvet Drive, ZF, Hurth, Volvo Penta, MerCruiser, or other OEM details before replacing internal parts, seals, damper plates, coolers, or controls.

Quick ShopTop OEMFitmentSystemsServiceFAQCouplingsFluids

Fitment

Start With the Transmission Plate

Transmission model, ratio, rotation, serial number, and part number matter. Many small parts look similar but fit only specific Borg-Warner, Velvet Drive, ZF, Hurth, Volvo Penta, MerCruiser, or inboard packages.

71C Velvet Drive72C Velvet DriveHBW360 Hurth

Inspection

Noise, Heat, Slipping, or Leaks Need Context

Burnt fluid, delayed engagement, metal in the oil, slipping under load, leaking seals, vibration, or overheating can point to alignment, cooler flow, fluid level, clutch wear, damper failure, or internal gearbox damage.

Record the model plate, ratio, fluid condition, leak location, operating temperature, and when the symptom appears before ordering parts.

GEAR

Gearbox Parts

Bushings, washers, plates, springs, nuts, O-rings, gaskets, and seal kits support internal transmission service.

DRV

Drivetrain Interface

Damper plates, couplings, shaft alignment, mounts, and controls affect how power moves from engine to propeller.

COOL

Fluid & Cooling

Transmission oil, cooler condition, clean flow, and heat control are critical to gearbox life and shift quality.

Maintenance

Transmission Work Rewards Careful Identification

Before replacing parts, verify the exact gearbox, oil requirement, cooler flow, shift linkage adjustment, engine alignment, and whether the problem is internal or caused by surrounding drivetrain components.

Check fluid firstLow, burnt, foamy, or contaminated fluid can reveal overheating, leaks, water intrusion, or clutch wear.
Confirm alignmentMisalignment can damage couplings, dampers, bearings, seals, and transmission mounts.
Inspect the coolerRestricted or leaking coolers can cause overheating or water contamination in the transmission.
Use exact partsMatch part numbers, model series, and ratio details before ordering internal transmission components.

FAQ

Marine Transmission Questions

How do I identify my marine transmission?

Start with the transmission identification plate. Record the manufacturer, model, ratio, serial number, rotation, and any part numbers before ordering parts.

Are Velvet Drive and Borg-Warner the same thing?

Many Velvet Drive marine transmissions are associated with Borg-Warner designs and parts, but fitment still depends on the exact model and series.

When should a damper plate be replaced?

Damper plates should be inspected when there is drivetrain rattle, vibration, spring failure, engine removal, transmission removal, or visible wear at the engine-to-transmission connection.

Can I use regular ATF or oil in a marine transmission?

Use the fluid specified by the transmission or engine manufacturer. Different gearboxes may require ATF, engine oil, hydraulic fluid, or OEM-specific transmission oil.

Ready to Find the Right Gearbox Part?

Shop Marine Transmissions, Velvet Drive Parts, ZF / Hurth Components, Damper Plates & Fluids

Search by transmission manufacturer, model number, ratio, OEM part number, symptom, seal kit, damper plate, cooler, control cable, or fluid specification.

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ZF Marine Transmission O-Ring 16x2mm - Seal Component

$5.50 - $5.50
$5.50
$5.50
$5.50 - $5.50
$5.50
Only 2 left!

16x2mm O-Ring for ZF Marine Transmissions This precision-manufactured 16x2mm O-ring is designed for ZF marine transmissions, providing reliable sea...

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$5.50 - $5.50
$5.50
$5.50
$5.50 - $5.50
$5.50

ZF Marine Transmission O-Ring - Seal Component

$8.85 - $8.85
$8.85
$8.85
$8.85 - $8.85
$8.85
Only 3 left!

O-Ring for ZF Marine Transmissions This precision-manufactured O-ring is designed for ZF marine transmissions, providing reliable sealing at variou...

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$8.85 - $8.85
$8.85
$8.85
$8.85 - $8.85
$8.85

TMI HSW Control Valve Oil Seal - Marine Transmission Seal Component

$33.01 - $33.01
$33.01
$33.01
$33.01 - $33.01
$33.01
Only 2 left!

Control Valve Oil Seal for TMI HSW Marine Transmissions This precision-manufactured oil seal is designed for TMI HSW marine transmission control va...

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$33.01 - $33.01
$33.01
$33.01
$33.01 - $33.01
$33.01

ZF Marine Transmission Output Seal - Output Shaft Oil Seal Component

$48.87 - $48.87
$48.87
$48.87
$48.87 - $48.87
$48.87
Only 1 left!

Output Seal for ZF Marine Transmissions This precision-manufactured output seal is designed for ZF marine transmissions, providing reliable sealin...

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$48.87 - $48.87
$48.87
$48.87
$48.87 - $48.87
$48.87

TMI Marine Transmission Output Oil Seal - Shaft Seal Component

$77.63 - $77.63
$77.63
$77.63
$77.63 - $77.63
$77.63
Only 1 left!

Output Oil Seal for TMI Marine Transmissions This precision-manufactured output oil seal is designed for TMI marine transmissions, providing relia...

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$77.63 - $77.63
$77.63
$77.63
$77.63 - $77.63
$77.63

ZF Transmission Cooler Kit 3312107003

$613.35 - $613.35
$613.35
$613.35
$613.35 - $613.35
$613.35
Only 1 left!

ZF 3312107003 is a marine transmission gear oil cooler kit used to help control transmission oil temperature on supported ZF marine gearboxes. It i...

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$613.35 - $613.35
$613.35
$613.35
$613.35 - $613.35
$613.35

ZF Marine Transmission Filter Kit 3312199031

$138.51 - $138.51
$138.51
$138.51 - $138.51
$138.51
Only 4 left!

The ZF Marine 3312199031 Transmission Filter Kit is an original-equipment transmission oil filter kit used on select ZF Hurth marine gearboxes. Thi...

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$138.51 - $138.51
$138.51
$138.51 - $138.51
$138.51

ZF Hurth Oil Seal 55x72x10mm Viton - Marine Transmission Seal

$87.33 - $87.33
$87.33
$87.33
$87.33 - $87.33
$87.33
Only 1 left!

Premium Viton Oil Seal for ZF Hurth Marine Transmissions - 55x72x10mm This high-performance Viton oil seal is engineered for ZF Hurth marine trans...

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$87.33 - $87.33
$87.33
$87.33
$87.33 - $87.33
$87.33

ZF Hurth Level Gauge Dipstick - Marine Transmission Fluid Check

$56.84 - $56.84
$56.84
$56.84
$56.84 - $56.84
$56.84
Only 2 left!

ZF Hurth Level Gauge Dipstick for Marine Transmissions This precision-calibrated level gauge dipstick is designed for ZF Hurth marine transmission...

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$56.84 - $56.84
$56.84
$56.84
$56.84 - $56.84
$56.84

ZF Hurth HSW Series Control Block Gasket - Marine Transmission

$24.85 - $24.85
$24.85
$24.85
$24.85 - $24.85
$24.85
in stock

Control Block Gasket for ZF Hurth HSW Series Marine Transmissions This precision-cut control block gasket is engineered for ZF Hurth HSW series ma...

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$24.85 - $24.85
$24.85
$24.85
$24.85 - $24.85
$24.85

ZF Hurth 800V Dipstick Screw-In - 3313201002

$0.00 - $0.00
$0.00
$81.00
$81.00 - $81.00
$81.00
Only 1 left!

ZF Hurth 800V Screw-In Dipstick for Marine Transmissions This precision-manufactured screw-in dipstick is designed for ZF Hurth 800V marine transm...

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$0.00 - $0.00
$0.00
$81.00
$81.00 - $81.00
$81.00

Centa Coupling CFR 3313316016

$0.00 - $0.00
$0.00
$1,285.85
$1,285.85 - $1,285.85
$1,285.85

The CENTA CF-R coupling for ZF Hurth 30 / ZF 30M marine transmissions is a torsional coupling used between the engine flywheel and marine gearbox t...

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$0.00 - $0.00
$0.00
$1,285.85
$1,285.85 - $1,285.85
$1,285.85